Passenger Stair / Crewstair

Ground Support Equipment April, 204 Revision (0) Date Passenger Stair / Crewstair (A227266D) Operation & Maintenance Manual WASP, Inc. PRINTED IN THE U.S.A. Model A227266D

TABLE OF CONTENTS TABLE OF CONTENTS FRONT MATTER............................................................ GENERAL INFORMATION AND OPERATING INSTRUCTIONS......................9 PREVENTIVE MAINTENANCE................................................4 OVERHAUL PROCEDURES (NOT APPLICABLE).................................67 ILLUSTRATED PARTS LISTS.................................................69 MANUFACTURER S APPENDICES............................................95 WARRANTY..............................................................07 ALPHABETICAL INDEX..................................................... Equipment Model A227266D I Operation & Maintenance Manual

Equipment Model A227266D II Operation & Maintenance Manual

FRONT MATTER FRONT MATTER This Operation & Maintenance Manual was written to give the owner / operator instructions on the safe operation and maintenance of the WASP Inc. equipment. READ AND UNDERSTAND THIS OPERATION & MAINTENANCE MANUAL BEFORE OPERATING YOUR WASP INC. EQUIPMENT. INTRODUCTION............................................................3 Safety Notice.............................................................3 Purpose.................................................................3 Scope..................................................................3 Terms..................................................................3 Modifications.............................................................3 Compliances.............................................................3 SERIAL NUMBER LOCATION..................................................4 Equipment Serial Number...................................................4 TITLE PAGE................................................................5 Manufacturer s Information..................................................5 RECORD OF REVISIONS.....................................................6 SAFETY PRECAUTIONS.....................................................7 Safe Operation Is The Operator s Responsibility.................................7 Safe Operation Needs A Qualified Operator.....................................7 Use Safety Rules.........................................................8 FIRE PREVENTION..........................................................8 Maintenance.............................................................8 Operation...............................................................8 Electrical................................................................8 Hydraulic System.........................................................9 Fueling.................................................................9 Starting.................................................................9 Spark Arrester Exhaust System..............................................9 Welding And Grinding......................................................9 Fire Extinguishers.........................................................9 SAFETY IDENTIFICATION...................................................0 Safety Decals...........................................................0 TECHNICAL ADVISORIES / BULLETINS........................................5 FEATURES AND ACCESSORIES..............................................6 Standard Items..........................................................6 Optional Items...........................................................6 Equipment Model A227266D Operation & Maintenance Manual

Equipment Model A227266D 2 Operation & Maintenance Manual

FRONT MATTER INTRODUCTION Thank you for your decision to purchase a passenger stair / crewstair assembly from WASP Inc. To ensure maximum performance of your equipment, it is mandatory that you thoroughly read and understand the operation & maintenance manual and follow its recommendations. Proper operation and maintenance are essential to prevent injury or damage and to maximize equipment life. Continuous improvement and advancement of WASP Inc. products may result in changes to your equipment that may not be reflected in this publication. WASP Inc. reserves the right to make product improvements at any time. Although great care has been taken to ensure the accuracy of this publication, WASP Inc. does not assume any liability for errors or omissions. Safety Notice Operate and maintain this equipment in a safe manner and in accordance with all applicable local, state, and federal codes, regulations and/or laws, and in compliance with on-product labeling and these instructions. Make sure that all personnel have read this operation & maintenance manual and thoroughly understand safe and correct operating and maintenance procedures. Modifications Compliances This WASP Inc. equipment complies with: OSHA Standard: 29 CFR 90.29 Manual Propelled mobile stands and scaffolds (towers). California Code of Regulations Title 8 - Subchapter 7 General Industry Safety Orders: Group 4. General Mobile Equipment and Auxiliaries Article 23. Mobile Ladder Stands and Scaffolds (Towers) 3622. General and 3627. Mobile Ladder Stands Group. General Physical Conditions and Structures Orders Article 2. Standard Specification 3209. Standard Guardrails and 320 Guardrails at Elevated Locations Figure RIGHT Purpose The passenger stair / crewstair is used to safely provide a means for passenger(s) / crew(s) to get to and from the tarmac to the aircraft. Scope FRONT REAR This document outlines the specific design and performance requirements for the use of a WASP passenger stair / crewstair assembly. The word must in this document indicates a mandatory requirement. The use of should indicates a recommendation of that which is advised but not required. LEFT P00070 The directions left, right, front and rear, as mentioned throughout this manual, are as viewed from the rear of the equipment [Figure ]. Terms The terms of this equipment can be found in the warranty section of this manual. (See WARRANTY on Page 09.) Equipment Model A227266D 3 Operation & Maintenance Manual

SERIAL NUMBER LOCATION Equipment Serial Number Figure 2 P00073 The serial number (Item ) [Figure 2] is located in front of the right front caster of the passenger stair / crewstair assembly. Always use the serial number of the equipment when requesting service information or when ordering parts. Early or later models (identification made by serial number) may use different parts, or it may be necessary to use a different procedure in doing a specific service operation. Equipment Model A227266D 4 Operation & Maintenance Manual

FRONT MATTER TITLE PAGE Manufacturer s Information WASP Incorporated PO Box 249 2063 State Highway 55 Glenwood, MN 56334 Equipment Name: Passenger Stair / Crewstair Assembly Manual Revision: 0 Publication Date: April 204 Equipment Model A227266D 5 Operation & Maintenance Manual

RECORD OF REVISIONS CHANGE DATE EDITION REVISION NUMBER EFFECTED PAGES CHANGE DESCRIPTION Equipment Model A227266D 6 Operation & Maintenance Manual

FRONT MATTER SAFETY PRECAUTIONS Safe Operation Is The Operator s Responsibility Safety Alert Symbol This symbol with a warning statement means: Warning, be alert! Your safety is involved! Carefully read the message that follows. WARNING Operator must have instructions before operating the machine. Untrained operators can cause injury or death. W-203-00 CAUTION This notice identifies procedures which must be followed to avoid damage to the machine. I-203-00 DANGER The signal word DANGER on the equipment and in the manuals indicates a hazardous situation which, if not avoided, will result in death or serious injury. D-203-00 Safe Operation Needs A Qualified Operator For an operator to be qualified, he or she must not use drugs or alcoholic drinks which impair alertness or coordination while working. An operator who is taking prescription drugs must get medical advice to determine if he or she can safely operate a machine and the equipment. A Qualified Operator Must Do The Following: Understand the Written Instructions, Rules and Regulations The written instructions from WASP Inc. in this Operation & Maintenance Manual and machine signs (decals). Check the rules and regulations at your location. The rules may include an employer s work safety requirements. Have Training with Actual Operation Operator training must consist of a demonstration and verbal instruction. This training is given by your department supervisor before the equipment is operated. The new operator must start in an area without bystanders and use all the controls until he or she can operate the equipment safely under all conditions of the work area. Know the Work Conditions Know the weight of the materials being handled. Avoid exceeding the equipment load capacities. Reduce the size of load if handling heavy material. The operator must know any prohibited uses or work areas. Wear tight fitting clothing. Always wear safety glasses when operating, doing maintenance or service. WARNING The signal word WARNING on the equipment and in the manuals indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. W-203-007 The WASP Inc. equipment must be in good operating condition before use. Equipment Model A227266D 7 Operation & Maintenance Manual

SAFETY PRECAUTIONS (CONT D) FIRE PREVENTION Use Safety Rules Read and follow instructions on the equipment and in the equipment s Operation & Maintenance Manual before operating. In addition to the design and configuration of equipment, hazard control and accident prevention are dependent upon the awareness, concern, prudence and proper training of personnel involved in the operation, transport, maintenance and storage of equipment. Check that the equipment is securely fastened to the tow vehicle (if required). Make sure all the equipment controls are in the NEUTRAL position before operating the equipment. Operate the equipment according to the Operation & Maintenance Manual. When learning to operate the equipment, do it at a slow rate in an area clear of bystanders. DO NOT permit personnel to be in the work area when operating the equipment. DO NOT modify equipment. DO NOT make any adjustments or repairs on the equipment while the engine is running. Maintenance The equipment may have components that are at high temperatures under normal operating conditions. The primary source of high temperatures is the engine and exhaust system. The electrical system, if damaged or incorrectly maintained, can be a source of arcs or sparks. Flammable debris must be removed regularly. If flammable debris is allowed to accumulate, it can cause a fire hazard. All fuels, most lubricants and some coolant mixtures are flammable. Flammable fluids that are leaking or spilled onto hot surfaces or onto electrical components can cause a fire. Operation Do not use the equipment where exhaust, arcs, sparks or hot components can contact flammable material, explosive dust or gases. Electrical Keep shields and guards in place. Replace if damaged. Check all electrical wiring and connections for damage. Keep the battery terminals clean and tight. Repair or replace any damaged part or wires that are loose or frayed. Battery gas can explode and cause serious injury. Use the procedure in the Operation & Maintenance Manual for connecting the battery and for jump starting. Do not jump start or charge a frozen or damaged battery. Keep any open flames or sparks away from batteries. Do not smoke in battery charging area. Equipment Model A227266D 8 Operation & Maintenance Manual

FRONT MATTER FIRE PREVENTION (CONT D) Hydraulic System Check hydraulic tubes, hoses and fittings for damage and leakage. Never use open flame or bare skin to check for leaks. Hydraulic tubes and hoses must be properly routed and have adequate support and secure clamps. Tighten or replace any parts that show leakage. Always clean fluid spills. Do not use gasoline or diesel fuel for cleaning parts. Use commercial nonflammable solvents. Fueling Welding And Grinding Always clean the equipment, disconnect the battery, and disconnect the wiring before welding. Cover rubber hoses, battery and all other flammable parts. Keep a fire extinguisher near the equipment when welding. Have good ventilation when grinding or welding painted parts. Wear dust mask when grinding painted parts. Toxic dust or gas can be produced. Dust generated from repairing nonmetallic parts can be flammable or explosive. Repair such components in a well ventilated area away from open flames or sparks. Fire Extinguishers Stop the engine and let it cool before adding fuel. No smoking! Do not refuel a machine near open flames or sparks. Fill the fuel tank outdoors. Starting Do not use ether or starting fluids on any engine that has glow plugs. These starting aids can cause explosion and injure you or bystanders. Know where fire extinguishers and first aid kits are located and how to use them. Inspect the fire extinguisher and service the fire extinguisher regularly. Obey the recommendations on the instructions plate. Use the procedure in the Operation & Maintenance Manual for connecting the battery and for jump starting. Spark Arrester Exhaust System The spark arrester exhaust system is designed to control the emission of hot particles from the engine and exhaust system, but the muffler and the exhaust gases are still hot. Check the spark arrester exhaust system regularly to make sure it is maintained and working properly. Use the procedure in the Operation & Maintenance Manual for cleaning the spark arrester muffler (if equipped). Equipment Model A227266D 9 Operation & Maintenance Manual

SAFETY IDENTIFICATION Safety Decals 0 6 4 5 4 2 3 9 8 7 2 P0007 2 3 4 4 P00074 P00070 Equipment Model A227266D 0 Operation & Maintenance Manual

FRONT MATTER SAFETY IDENTIFICATION (CONT D) Safety Decals (Cont d) Safety signs are used to alert the equipment operator or maintenance person to hazards and information that may be encountered in the use and maintenance of the equipment. The location and description of the safety signs are detailed in this section. Please become familiarized with all safety signs installed on the machine / equipment. A safety sign may contain more than one hazard panel and more than one avoidance panel. NOTE: See the numbered (See Safety Decals on Page 0.) for the location of each correspondingly numbered decal.. Pinch Point (P2804A) This safety sign is located six places on the passenger stair / crewstair. 2. Towbar / Stabilizer Requirements (P227463A) This caution sign is located two places on the passenger stair / crewstair towbar. CAUTION When the towbar is up - engage the stabilizers. When the towbar is down - disengage the stabilizers. I-204-002 3. Maximum Speed Limit (H005627) This safety sign is located on the passenger stair / crewstair towbar. WARNING WARNING OVERSPEED HAZARD Do not exceed 5 mph (8 kph) when moving this equipment. W-204-03 CRUSHING HAZARD Keep fingers and hands out of pinch points when adjusting and / or moving the equipment. W-204-02 Equipment Model A227266D Operation & Maintenance Manual

SAFETY INSTRUCTIONS (CONT D) Safety Decals (Cont d) 4. Do Not Use Due To Wind Speed (P22739A) 5. Do Not Move (P227479A) This safety sign is located on the passenger stair / crewstair side panel (operator side). This safety sign is located on the passenger stair / crewstair side panel (operator side). WARNING AVOID INJURY OR DEATH Do not move the equipment with occupants onboard. W-204-04 WARNING AVOID INJURY OR DEATH Do not use the equipment when wind speeds meet or exceed 52 mph (83.7 kph). W-204-05 Equipment Model A227266D 2 Operation & Maintenance Manual

FRONT MATTER SAFETY INSTRUCTIONS (CONT D) Safety Decals (Cont d) 6. Stair Operation (P227479A) This safety sign is located on the passenger stair / crewstair side panel (operator side). 7. Fully extend right sliding guardrail. (See Sliding Guardrail Extension And Retraction on Page 30.) 8. Open aircraft door. (See the aircraft s Operation And Maintenance Manual.) 9. Extend left sliding guardrail so it does not interfere with the aircraft door. (See Sliding Guardrail Extension And Retraction on Page 30.) 0. Fully retract right and left sliding guardrails. (See Sliding Guardrail Extension And Retraction on Page 30.). Remove stair from aircraft. (See Stair Positioning At Aircraft on Page 33.) 2. Turn off lights. (See Turn Lights On on Page 29.) 7. Open / Close Hydraulic Valve (P227474A) This decal is located on the passenger stair / crewstair hydraulic tank.. Turn on lights (if needed). (See Turn Lights On on Page 29.) 2. Fully retract right and left sliding guardrails. (See Sliding Guardrail Extension And Retraction on Page 30.) 3. Set platform height to minimum height level for correct aircraft model. (See Stair Raising And Lowering on Page 3.) For correct operation. (See Stabilizers Setting And Releasing on Page 30.) or (See Stair Raising And Lowering on Page 3.) 4. Position stair at aircraft. (See Stair Positioning At Aircraft on Page 33.) 5. Engage stabilizers. (See Stabilizers Setting And Releasing on Page 30.) 6. Adjust platform height to aircraft sill. (See Stair Raising And Lowering on Page 3.) Equipment Model A227266D 3 Operation & Maintenance Manual

SAFETY INSTRUCTIONS (CONT D) Safety Decals (Cont d) 8. Hydraulic Fluid Level (P227484A). Stair Load Warning (P053867A) This safety sign is located on the sliding guardrails (platform side). This decal is located on the passenger stair / crewstair hydraulic tank. For correct hydraulic fluid level. (See Hydraulic Fluid Level Check on Page 49.) 9. Handle Latch Decal (P06252A) This safety sign is located on the passenger stair / crewstair height latch handle (both sides). WARNING AVOID INJURY OR DEATH Do not exceed platform maximum weight of 500 lb. (226.8 kg) and complete stair maximum weight of 2500 lb. (33.9 kg). W-204-06 2. Stair Load Warning (P068065A) For correct operation. (See Stair Raising And Lowering on Page 3.) This safety sign is located on the passenger stair / crewstair five stairs from the platform. 0. Stair Load Warning (P065750A) This safety sign is located on the sliding guardrails (platform side). WARNING AVOID INJURY OR DEATH Do not exceed platform maximum weight of 500 lb. (226.8 kg) and complete stair maximum weight of 2500 lb. (33.9 kg). W-204-06 Equipment Model A227266D 4 Operation & Maintenance Manual

FRONT MATTER 3. Stair Load Warning (P068066A) This safety sign is located on the passenger stair / crewstair six stairs from the platform. WARNING AVOID INJURY OR DEATH Do not exceed platform maximum weight of 500 lb. (226.8 kg) and complete stair maximum weight of 2500 lb. (33.9 kg). W-204-06 4. Stair Load Warning (P068067A) This safety sign is located on the passenger stair / crewstair seven stairs from the platform. WARNING AVOID INJURY OR DEATH Do not exceed platform maximum weight of 500 lb. (226.8 kg) and complete stair maximum weight of 2500 lb. (33.9 kg). W-204-06 Equipment Model A227266D 5 Operation & Maintenance Manual

TECHNICAL ADVISORIES / BULLETINS NOT APPLICABLE AT THIS TIME Equipment Model A227266D 6 Operation & Maintenance Manual

FRONT MATTER FEATURES AND ACCESSORIES Standard Items The passenger stair / crewstair assembly is equipped with the following standard items: Hydraulic Operated Stabilizers Adjustable Sliding Guardrails Hydraulic Operated Lift Cylinder Battery Operated Aircraft Light And Stair Lights Optional Items The passenger stair / crewstair assembly is equipped with the following optional items: Swivel Bumper Equipment Model A227266D 7 Operation & Maintenance Manual

Equipment Model A227266D 8 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS GENERAL INFORMATION AND OPERATING INSTRUCTIONS GENERAL INFORMATION AND OPERATING INSTRUCTION SAFETY PRECAUTIONS.. 2 PURPOSE OF EQUIPMENT..................................................23 GENERAL DESCRIPTION....................................................23 MAJOR COMPONENTS.....................................................24 EQUIPMENT SPECIFICATIONS...............................................25 Dimensions.............................................................25 Performance............................................................26 NORMAL OPERATION......................................................27 Pre Operation Checklist...................................................27 Towbar To Tow Vehicle...................................................28 Turn Lights On..........................................................29 Sliding Guardrail Extension And Retraction....................................30 Stabilizers Setting And Releasing............................................30 Stair Raising And Lowering.................................................3 Stair Positioning At Aircraft.................................................33 Charging Batteries.......................................................35 SHIPPING AND TRANSPORTATION...........................................36 Equipment Preparation For Shipping And Transportation.........................36 Lifting The Equipment.....................................................36 Fastening To Trailer......................................................37 STORAGE INSTRUCTIONS..................................................39 Storage................................................................39 Re-Commissioning.......................................................39 Equipment Model A227266D 9 Operation & Maintenance Manual

Equipment Model A227266D 20 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS GENERAL INFORMATION AND OPERATING INSTRUCTION SAFETY PRECAUTIONS DANGER AVOID SERIOUS INJURY OR DEATH Before moving the passenger stair / crewstair away from an aircraft, close the aircraft door or place the approved strap across the aircraft doorway. D-204-002 WARNING WARNING CRUSHING HAZARD Keep fingers and hands out of pinch points when connecting and disconnecting equipment. W-204-002 WARNING CRUSHING HAZARD Before moving the tow vehicle / equipment, look in all directions and make sure no bystanders are in the work area. Do not allow anyone between the tow vehicle and the equipment when backing up to the equipment for connecting. W-204-005 WARNING AVOID INJURY OR DEATH Use of an unapproved hitch or tow vehicle can result in loss of control, leading to serious injury or death. Tow vehicle and hitch must have the rated capacity to tow equipment. W-204-004 WARNING Verify that the equipment is securely fastened to the tow vehicle before moving the tow vehicle and equipment. W-204-006 WARNING AVOID INJURY OR DEATH DO NOT move equipment with occupants onboard. W-204-07 AVOID INJURY OR DEATH Confirm the auto latch is firmly in a slot, sliding guardrail latches are in place and the stabilizers are set before passengers or crew are allowed on the passenger stair / crewstair. W-204-09 Equipment Model A227266D 2 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTION SAFETY PRECAUTIONS (CONT D) WARNING AVOID INJURY OR DEATH As people go onto or come off of the aircraft, the aircraft height may go down (loading) or up (unloading), pay close attention to the following: The height distance between the aircraft floor and the stair platform. The distance between the aircraft door and the stair platform. W-204-020 WARNING WARNING AVOID INJURY OR DEATH Before positioning stairs at the aircraft, confirm the aircraft is properly grounded. W-204-022 IMPORTANT This Passenger Stair / Crewstair is only approved on the following aircraft models: MD-80, B737-800, A39, A32, 757 I-204-003 AVOID INJURY OR DEATH DO NOT adjust the stair height with anyone on the stairs. W-204-02 WARNING AVOID INJURY OR DEATH When external power (0 V) is required, confirm the equipment it is being used for and where the extension cord is being placed is not in water. W-204-023 WARNING AVOID INJURY OR DEATH Pay attention to surrounding areas to prevent being crushed between two pieces of equipment. W-203-020 Equipment Model A227266D 22 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS PURPOSE OF EQUIPMENT The passenger stair / crewstair is used to safely provide a means for passenger(s) / crew(s) to get to and from the tarmac to the aircraft. GENERAL DESCRIPTION For more information on: Major Components (See Page 24). Dimensions (See Page 25). Performance (See Page 26). This equipment is: Approved to provide a means for passenger(s) / crew(s) to get to and from the tarmac to the aircraft. Equipment Model A227266D 23 Operation & Maintenance Manual

MAJOR COMPONENTS SLIDING GUARDRAIL BUMPER SLIDING GUARDRAIL HANDRAILS PIVOTING PLATFORM BUMPER PLATFORM AIRCRAFT LIGHT SILL HEIGHT INDICATOR SUPPORT TUBES SUPPORT TUBE STORAGE BOX SOLID TIRES (2) HYDRAULIC TANK ELECTRICAL BOX SWIVEL CASTERS (2) TOWBAR P0007 STEP LIGHT (6) STEP (6) P00077 STABILIZERS (2) AUTO LATCH HANDLE CYLINDER BATTERY CHARGER P00070 Equipment Model A227266D 24 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS EQUIPMENT SPECIFICATIONS Dimensions Where applicable, specifications conform to SAE and ISO standards and are subject to change without notice. D B E A C P00082 DESCRIPTION Length, Stair (Towbar Retracted) (A) Length, Towbar (B) Width, Overall (C) Height (Maximum) (D) Height, Platform (Minimum) (E) MODEL A227266D 232.5 in. (5906 mm) 53.5 (359 mm) 84.5 in. (246 mm) 95 in. (4953 mm) 85 in. (259 mm) Equipment Model A227266D 25 Operation & Maintenance Manual

EQUIPMENT SPECIFICATIONS (CONT D) Performance DESCRIPTION MODEL A224777D Weight 3337 lb. (53.6 kg) Capacity 2500lb. (34 kg) = 500 lb. (227kg) Platform + 2000 lb. (907kg) Staircase Steering Front Caster Wheels Running Gear Front Caster Wheels, Rigid Rear Wheels Tires 4:00 x 8, 3 Stage Solid Tire Construction Structural Steel Main Frame With Morton Tread Steps Stabilizing Jacks Hydraulic Stabilizers Hydraulic Fluid Capacity 2.5 Gal. (9.47 L) Tow Speed (Maximum) 5 mph (8 kph) Wind Speed Stability (Maximum) 52 mph (84 kph) Equipment Model A227266D 26 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS NORMAL OPERATION Pre Operation Checklist WARNING CRUSHING HAZARD When any activities are performed under the stair or platform, the stair must be lowered onto the support tube holders or support tubes installed. W-204-028. To check the hydraulic fluid level and tire operation, release the stabilizers. (See Stabilizers Setting And Releasing on Page 30.) 2. Check hydraulic fluid level. (See Hydraulic Fluid Level Check on Page 49.) 3. Check the tires and casters for ease of operation. 4. Install support tubes. (See Support Tubes Installation And Removal on Page 44.) 5. Check the battery connections for tightness and no corrosion is found. 6. Turn on the lights and check lights for proper operation. (See Turn Lights On on Page 29.) Check all the lights for proper operation. 7. Check all mounting hardware for all components associated with the passenger stair / crewstair. 8. Check the stair and platform to make sure there are no tripping or slipping hazards. 9. Check the sliding guardrails for proper operation. (See Sliding Guardrail Extension And Retraction on Page 30.) 0. Confirm the rubber pivot bumper operates freely.. Remove support tubes. (See Support Tubes Installation And Removal on Page 44.) Equipment Model A227266D 27 Operation & Maintenance Manual

NORMAL OPERATION (CONT D) Towbar To Tow Vehicle Connect Towbar To Tow Vehicle: Figure 3 WARNING AVOID INJURY OR DEATH Pay attention to surrounding areas to prevent being crushed between two pieces of equipment. W-203-020 WARNING P00075. Rotate the towbar (Item ) [Figure 3] forward, to the extended position. 2. Position the tow vehicle hitch in front of the passenger stair / crewstair towbar. CRUSHING HAZARD Keep fingers and hands out of pinch points when connecting and disconnecting equipment. W-204-002 3. Attach the towbar to the tow vehicle hitch. 4. Release the stabilizers. (See Stabilizers Setting And Releasing on Page 30.) WARNING AVOID INJURY OR DEATH Always have the stabilizers set when the stairway is not being moved. W-204-08 Equipment Model A227266D 28 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS NORMAL OPERATION (CONT D) Towbar To Tow Vehicle (Cont d) Turn Lights On Figure 5 Disconnect Towbar From Tow Vehicle:. Disconnect the towbar from the tow vehicle. 2. Set the stabilizers. (See Stabilizers Setting And Releasing on Page 30.) Figure 4 P000 Rotate the light timer (Item ) [Figure 5] to the desired amount of time that lights are required. NOTE: Do not force the timer to zero (0), this may damage the timer. P00076 3. Rotate the towbar (Item ) [Figure 4] back, into the retracted position. Equipment Model A227266D 29 Operation & Maintenance Manual

NORMAL OPERATION (CONT D) Sliding Guardrail Extension And Retraction Figure 6 Stabilizers Setting And Releasing Setting: Figure 8 2 2 P00083 P00086 P00078 Push and hold the sliding guardrail latch (Item ) down until the sliding guardrail latch is above the sliding guardrail slot (Item 2) [Figure 6]]. Figure 7 Place the priority valve handle (Item ) in the STABILIZERS position and close the release valve (Item 2) [Figure 8]. Figure 9 P00084 P00079 Move the sliding guardrail (Item ) [Figure 7] to the desired location. Pump the hydraulic hand pump (Item ) [Figure 9] until the front casters are slightly off the ground. Releasing: Place the priority valve handle (Item ) in the STABILIZER position and slowly open the release valve (Item 2) [Figure 8]. NOTE: As the release valve is opened, the stabilizer springs will retract and raise the stabilizers. Equipment Model A227266D 30 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS NORMAL OPERATION (CONT D) Stair Raising And Lowering Raising Stair: WARNING AVOID INJURY OR DEATH DO NOT adjust the stair height with anyone on the stairs. W-204-02 WARNING AVOID INJURY OR DEATH Confirm the auto latch is firmly in a slot, sliding guardrail latches are in place and the stabilizers are set before passengers or crew are allowed on the passenger stair / crewstair. W-204-09 Figure 2 Figure 0 2 P00080 P00078 Place the priority valve handle (Item ) in the PLATFORM position and close the release valve (Item 2) [Figure 0]. Figure Confirm the auto latches (Item ) [Figure 2] are fully engaged into the slots (both sides) on the X-Frame. Slowly open the release valve (Item 2) [Figure 0] to lower the X-Frame slot onto the auto latch (Item ) [Figure 2]. Close the release valve. NOTE: Do not open the release valve more than /2 turn when lowering the stair. P00079 Pump the hydraulic hand pump (Item ) [Figure ] until the platform is at the desired height. Equipment Model A227266D 3 Operation & Maintenance Manual

NORMAL OPERATION (CONT D) Figure 4 Raising And Lowering Stair (Cont d) Lowering Stair: WARNING AVOID INJURY OR DEATH DO NOT adjust the stair height with anyone on the stairs. W-204-02 P00079 Figure 3 Figure 5 2 2 P00078 P0008 Place the priority valve handle (Item ) in the PLATFORM position and close the release valve (Item 2) [Figure 3]. Pump the hydraulic hand pump (Item ) [Figure 4] until the auto latch (Item ) [Figure 5] is free. Pull down on the handle (Item 2) [Figure 5] to release the auto latch. Slowly open the release valve (Item 2) [Figure 3] and lower the stair to the desired location. NOTE: Do not open the release valve more then /2 turn when lowering the stair. If release valve is opened more than /2 turn the pressure relief valve may set and prevent the stair from lowering. Equipment Model A227266D 32 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS NORMAL OPERATION (CONT D) Stair Positioning At Aircraft DANGER AVOID SERIOUS INJURY OR DEATH Before moving the passenger stair / crewstair away from an aircraft, close the aircraft door or place the approved strap across the aircraft doorway. D-204-002 WARNING AVOID INJURY OR DEATH As people go onto or come off of the aircraft, the aircraft height may go down (loading) or up (unloading), pay close attention to the following: The height distance between the aircraft floor and the stair platform. The distance between the aircraft door and the stair platform. W-204-020 WARNING AVOID INJURY OR DEATH Confirm the auto latch is firmly in a slot, sliding guardrail latches are in place and the stabilizers are set before passengers or crew are allowed on the passenger stair / crewstair. W-204-09 WARNING AVOID INJURY OR DEATH DO NOT adjust the stair height with anyone on the stairs. W-204-02 WARNING AVOID INJURY OR DEATH Before positioning stairs at the aircraft, confirm the aircraft is properly grounded. W-204-022 IMPORTANT This Passenger Stair / Crewstair is only approved on the following aircraft models: MD-80, B737-800, A39, A32, 757 I-204-003 IMPORTANT When the passenger stair / crewstair is not in use, position the passenger stair / crewstair safely away from aircraft. I-204-004 Equipment Model A227266D 33 Operation & Maintenance Manual

NORMAL OPERATION (CONT D) Stair Positioning At Aircraft (Cont d) Placing Passenger Stair / Crewstair To Aircraft:. Turn on lights (if needed). (See Turn Lights On on Page 29.) 2. Fully retract right and left sliding guardrails. (See Sliding Guardrail Extension And Retraction on Page 30.) Figure 6 Remove Passenger Stair / Crewstair From Aircraft: DANGER AVOID SERIOUS INJURY OR DEATH Before moving the passenger stair / crewstair away from an aircraft, close the aircraft door or place the approved strap across the aircraft doorway. D-204-002. Fully retract right and left sliding guardrails. (See Sliding Guardrail Extension And Retraction on Page 30.) 2. Release stabilizers. (See Stabilizers Setting And Releasing on Page 30.) 3. Move stair from aircraft. 4. Lower the stair. (See Lowering Stair: on Page 32.) 5. Set stabilizers. (See Stabilizers Setting And Releasing on Page 30.) P00085 NOTE: The lights will turn off automatically. 3. Set platform height to minimum height level (Item ) [Figure 6] for correct aircraft model. (See Stair Raising And Lowering on Page 3.) NOTE: The example above shows the platform height indicator (Item ) [Figure 6] set for a MD-80 with the platform at it s lowest setting for that aircraft type. 4. Position stair at aircraft. 5. Set stabilizers. (See Stabilizers Setting And Releasing on Page 30.) 6. Adjust platform height to aircraft sill. (See Stair Raising And Lowering on Page 3.) 7. Fully extend right sliding guardrail. (See Sliding Guardrail Extension And Retraction on Page 30.) 8. Open aircraft door. (See the aircraft s Operation And Maintenance Manual for correct procedure.) 9. Extend left sliding guardrail so it does not interfere with the aircraft door. (See Sliding Guardrail Extension And Retraction on Page 30.) The passenger stair / crewstair is ready for use. Equipment Model A227266D 34 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS NORMAL OPERATION (CONT D) Figure 8 Charging Batteries WARNING AVOID INJURY OR DEATH When external power (0 V) is required, confirm the equipment it is being used for and where the extension cord is being placed is not in water. W-204-023 2 P0000 NOTE: The battery charger is removed to easily show how to operate it. Figure 7 4 3 Plug an extension cord (0 V) into the battery box (Item ) [Figure 8]. After plugging in the extension cord, through the battery box window (Item 2) [Figure 8] the following may be seen: Normal Charging: Green light (Item 2) flashing and DC ampere meter (Item 3) [Figure 7] indicates more than zero amps. Normal Full Charged: Green light (Item 2) on and DC ampere meter (Item 3) [Figure 7] indicates zero amps. Disconnect extension cord. 2 P00087 Abnormal Charging: Red light (Item 4) flashing and DC ampere meter (Item 3) [Figure 7] indicates more than zero amps. NOTE: The battery charger knob (Item ) [Figure 7] has been placed and set (unable to move) by WASP Inc. Abnormal Charging: Red light (Item 4) on and DC ampere meter (Item 3) [Figure 7] indicates more than zero amps. NOTE: Any abnormal charging, troubleshoot the charger. (See Battery Charger Troubleshooting (Model JYVA) on Page 04.) Equipment Model A227266D 35 Operation & Maintenance Manual

SHIPPING AND TRANSPORTATION Equipment Preparation For Shipping And Transportation Use a proper lifting device to support the weight of stair and platform. Figure 9 Lifting The Equipment NOTE: It is recommended to have a second person to guide the forklift / passenger stair/crewstair into place. Fully lower the stair. (See Lowering Stair: on Page 32.) NOTE: Use a properly rated forklift while lifting passenger stair / crewstair. (See the forklift s Operation And Maintenance manual.) and (See EQUIPMENT SPECIFICATIONS on Page 25.) 3 For forklift operation, (See the forklift s Operation And Maintenance Manual.) Figure 20 4 2 2 P0060 Remove the mounting hardware (Item ) from the upper x-frame. Lower the x-frame (Item 2) [Figure 9]. Remove the mounting hardware (Item 3) [Figure 9] from the upper cylinder mount. Lower the cylinder (Item 4) [Figure 9]. P0058 Spread the forklift tines (Item ) [Figure 20] to the maximum width. Align the center of the forklift with the electrical box (Item 2) [Figure 20]. Drive the forklift forward until the forklift tines are under the opposite side of the running gear. Equipment Model A227266D 36 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS SHIPPING AND TRANSPORTATION (CONT D) Lifting The Equipment (Cont d) Figure 2 Fastening To Trailer WARNING AVOID INJURY OR DEATH Follow all federal, state and local laws and regulations while transporting equipment. W-204-0 P0059 Fully lower the stair. (See Lowering Stair: on Page 32.) Use proper straps to prevent the stair from moving during transportation. Figure 22 Lift the stair (Item ) [Figure 2] slightly off the ground. Confirm the stair is balanced on the forklift tines. If necessary, lower the stair and adjust the forklift to the stair. 4 3 Raise the stair to the desired height. 2 P0054 Rotate both casters (Item ) [Figure 22] parallel to the length of the trailer. Place planks (Item 2) [Figure 22] on the front and rear sides of the casters (Item ). Fasten the planks onto the trailer bed. Properly secure the towbar (Item 3) to the running gear (Item 4) [Figure 22]. Equipment Model A227266D 37 Operation & Maintenance Manual

SHIPPING AND TRANSPORTATION (CONT D) Figure 25 Fastening To Trailer (Cont d) Figure 23 P0057 P0056 Place a strap in front of the rear tires, over the running gear (Item ) [Figure 23]. Place a strap through the sliding guardrails (Item ) [Figure 25]. Secure and tighten all straps to the trailer. Figure 24 P0055 Place a strap behind the front casters, over the running gear (Item ) [Figure 23]. NOTE: Be careful not to damage the hydraulic hoses when securing the stair to the trailer. Equipment Model A227266D 38 Operation & Maintenance Manual

GENERAL INFORMATION AND OPERATING INSTRUCTIONS STORAGE INSTRUCTIONS Storage Sometimes it may be necessary to store your WASP Inc. equipment for an extended period of time. Below is a list of items to perform before storage. Thoroughly clean the equipment. Lubricate the equipment. Inspect all welds on the equipment for wear and damage. Check for loose hardware, missing guards, or damaged parts. Check for damaged or missing decals. Replace if necessary. Place the equipment in a dry protected shelter. Place the equipment flat on the ground. Re-Commissioning After the WASP Inc. equipment has been in storage, it is necessary to follow a list of items to return the equipment to service. Be sure all shields and guards are in place. Lubricate the equipment. Operate equipment, check for correct function. Equipment Model A227266D 39 Operation & Maintenance Manual

Equipment Model A227266D 40 Operation & Maintenance Manual

MAINTENANCE AND REPAIR PREVENTIVE MAINTENANCE MAINTENANCE AND REPAIR SAFETY PRECAUTIONS...........................43 GENERAL OVERVIEW......................................................43 Passenger Stair / Crewstair Components......................................43 PREPARE FOR MAINTENANCE..............................................44 Support Tubes Installation And Removal......................................44 PREVENTATIVE MAINTENANCE..............................................45 Battery Condition Check...................................................45 Decal, Reflector Inspection.................................................47 Steps, Sliding Guardrail And Platform Inspection................................47 Hydraulic Fluid Level Check................................................49 Hydraulic System Inspection................................................50 Electrical System Inspection................................................5 Towbar Inspection........................................................52 Tire Inspection..........................................................52 Lubrication Locations.....................................................53 Lubrication.............................................................54 MAINTENANCE PROCEDURES...............................................56 Towbar Hold-Up Device Adjustment Leveling..................................56 Wheel Replacement......................................................57 Stabilizer Replacement....................................................58 Light Assembly Replacement...............................................60 SPECIFICATIONS..........................................................6 Settings................................................................6 Lubricants..............................................................6 Torque Values...........................................................62 TROUBLESHOOTING.......................................................63 Chart..................................................................63 SYSTEM SCHEMATICS.....................................................64 Electrical Schematic......................................................64 Hydraulic Schematic......................................................65 Equipment Model A227266D 4 Operation & Maintenance Manual

Equipment Model A227266D 42 Operation & Maintenance Manual

MAINTENANCE AND REPAIR MAINTENANCE AND REPAIR SAFETY PRECAUTIONS WARNING GENERAL OVERVIEW The following are the major components that allow safe and efficient aircraft entering and exiting of passengers and crew. Passenger Stair / Crewstair Components Steps: Sixteen steps allow aircraft entering and exiting of passengers and crew. CRUSHING HAZARD Keep fingers and hands out of pinch points when connecting and disconnecting equipment. W-204-002 WARNING Hydraulic Lift: Hydraulic lift allows the passenger stair / crewstair to be used on several different aircraft types. Stabilizers: Two stabilizers prevent the passenger stair / crewstair from moving when passengers / crew are using the stair. Electrical System: Battery powered electrical system provides lighting on the steps and lighting below the platform. Tires: CRUSHING HAZARD When any activities are performed under the stair or platform, the stair must be lowered onto the support tube holders or support tubes installed. W-204-028 Four solid tires allow for ease of transportation of the passenger stair / crewstair. Towbar: The towbar connects the passenger stair / crewstair to a tow vehicle. WARNING AVOID INJURY OR DEATH Use of an unapproved hitch or tow vehicle can result in loss of control, leading to serious injury or death. Tow vehicle and hitch must have the rated capacity to tow equipment. W-204-004 Equipment Model A227266D 43 Operation & Maintenance Manual

PREPARE FOR MAINTENANCE Support Tubes Installation And Removal Installation: NOTE: Always install the support tubes when performing service or maintenance underneath the passenger stair / crewstair when it is in the raised position. Removal: Raise the stair until the support tubes can be removed. (See Stair Raising And Lowering on Page 3.) Figure 28 Park the stair on flat level surface. Raise the stair until the support tubes can be installed. (See Stair Raising And Lowering on Page 3.) Figure 26 2 P0007 Remove the support tubes (Item ) from the support tube holders (Item 2) [Figure 28]. Figure 29 P0008 Remove the support tubes (Item ) [Figure 26] from the support tube storage box. Figure 27 P002 3 P0008 Place the support tubes (Item ) [Figure 29] into the support tube storage box. 2 P0007 Place the support tubes (Item ) onto the support tube holders (Item 2) [Figure 27]. Lower the stair (Item 3) [Figure 27] onto the support tubes. (See Lowering Stair: on Page 32.) Equipment Model A227266D 44 Operation & Maintenance Manual

MAINTENANCE AND REPAIR PREVENTATIVE MAINTENANCE Figure 3 NOTE: The preventative maintenance schedule is based on the passenger stair / crewstair use of 200 hours or 8 weeks whichever comes first. Except the battery condition check which is done monthly. Battery Condition Check Prepare stair for maintenance. (See PREPARE FOR MAINTENANCE on Page 44.) Figure 30 P0006 Open electrical box cover (Item ) [Figure 30]. WARNING P0006 NOTE: Mark all wires for ease of reconnecting terminals to the battery. Disconnect all wiring from batteries terminals (Item ) [Figure 3]. Remove the batteries from the electrical box. Using water and clean towel, clean the battery box. Check the battery box for damage. Figure 32 AVOID INJURY OR DEATH Always disconnect the negative battery terminals first. Always connect the positive battery terminals first. W-204-025 2 P0009 Using water, baking soda and a brush, clean the battery posts (Item ) [Figure 32]. Remove the battery caps (Item 2) [Figure 32]. Equipment Model A227266D 45 Operation & Maintenance Manual

PREVENTATIVE MAINTENANCE (CONT D) Battery Condition Check (Cont d) Figure 33 WARNING AVOID INJURY OR DEATH Always disconnect the negative battery terminals first. Always connect the positive battery terminals first. W-204-025 Figure 35 P000 Check the water level in each cell (Item ) [Figure 33]. If any of the cells are low fill with distilled water to the bottom of the hole(s). Figure 34 P0006 Install the batteries into the electrical box. Connect all wiring to both the batteries terminals (Item ) [Figure 35]. Close electrical box cover. P0009 Install the battery caps (Item ) [Figure 34]. Equipment Model A227266D 46 Operation & Maintenance Manual

MAINTENANCE AND REPAIR PREVENTATIVE MAINTENANCE (CONT D) Figure 37 Decal, Reflector Inspection Check all decals and reflectors for condition. (See Safety Decals on Page 0.) A A Replace decals and reflectors as necessary. Steps, Sliding Guardrail And Platform Inspection A Prepare stair for maintenance. (See PREPARE FOR MAINTENANCE on Page 44.) 2 Figure 36 3 DETAIL A OF SECTION AA 2 4 P0053 Flip over the tread grip sheet (Item ) [Figure 37]. Check rub strip (Item 2) [Figure 37] for any areas that are worn or damaged. 2 Measure the thickness of the rub strip (Item 2) [Figure 37] using one of the following procedures: Measure the thickness of the tread grip sheet and rub strip (Item 3) [Figure 37] together. The minimum thickness allowed is 0.50 in. (2.7 mm). P0052 Remove the five screws (Item ) and tread grip sheet (Item 2) [Figure 36]. Measure the thickness of the rub strip (Item 4) [Figure 37] together. The minimum thickness allowed is 0.8 in. (4.6 mm). Replace rub strip if damaged or does not meet the minimum thickness. Installation: Install tread grip sheet (Item 2) and five screws (Item ) [Figure 36]. Equipment Model A227266D 47 Operation & Maintenance Manual

PREVENTATIVE MAINTENANCE (CONT D) Figure 40 Steps, Sliding Guardrail And Platform Inspection (Cont d) Figure 38 2 4 3 P004 Inspect the bumper (Item ) and pivot (Item 2) [Figure 38] operation. Ensure all components are secure and that all hardware is thoroughly tightened. Replace any damaged or worn parts. Figure 39 2 P003 Inspect the following components of the x-frame / auto latch area: Auto latch system: Inspect the latch (Item ), springs and handle (Item 2) [Figure 40] operation. Ensure all components are secure and that all hardware is thoroughly tightened. Replace any damaged or worn parts. X-frame: Inspect the x-frame (Item 4) [Figure 40] for cracked and/or damaged structure. Ensure all components are secure and that all hardware is thoroughly tightened. Replace any damaged or worn parts. Figure 4 2 2 P00084 Inspect the bumpers (Item ) and sliding guardrails (Item 2) [Figure 39] mounting hardware for being loose, damaged or missing. P005 Check the sliding guardrails (Item 2) [Figure 39] for operations. (See Sliding Guardrail Extension And Retraction on Page 30.) Inspect stairs (Item ) [Figure 4] for loose, damaged, missing mounting hardware or worn non-skid material. Inspect the two guardrails (Item 2) [Figure 4] and mounting hardware for being loose, damaged or missing. Equipment Model A227266D 48 Operation & Maintenance Manual

MAINTENANCE AND REPAIR PREVENTATIVE MAINTENANCE (CONT D) Figure 43 Hydraulic Fluid Level Check Park the stair on flat level surface. Fully lower the stair. (See Lowering Stair: on Page 32.) Fully release the stabilizers. (See Stabilizers Setting And Releasing on Page 30.) Figure 42 P005 Visually check the hydraulic fluid level. Fill hydraulic fluid level as required with Dexron III or equivalent. NOTE: Hydraulic fluid level should be up to the bottom of the hydraulic tank filler (Item ) [Figure 43]. Close the hydraulic tank cap (Item ) [Figure 42]. P0005 Open the hydraulic tank cap (Item ) [Figure 42]. Equipment Model A227266D 49 Operation & Maintenance Manual

PREVENTATIVE MAINTENANCE (CONT D) Figure 46 Hydraulic System Inspection Prepare stair for maintenance. (See PREPARE FOR MAINTENANCE on Page 44.) Figure 44 2 3 4 P00079 2 P006 Inspect the hydraulic tank (Item ), release valve (Item 2), priority valve (Item 3) and hand pump (Item 4) [Figure 46] and hydraulic hoses for signs of leaks or damage. Ensure all components are secure and that all hardware is thoroughly tightened. Replace any damaged parts. Inspect the stabilizers (Item ) (both) and hydraulic hoses (Item 2) [Figure 44] for signs of leaks and for mounting hardware being loose, damaged or missing. Figure 45 2 P007 Inspect the cylinder (Item ) [Figure 45] and hydraulic hose for signs of leaks and for mounting hardware being loose, damaged or missing. NOTE: When inspecting the cylinder, check there is no oil dripping from breather (Item 2) [Figure 45]. It may be a sign of internal leakage. Replace cylinder or install repair kit. Equipment Model A227266D 50 Operation & Maintenance Manual

MAINTENANCE AND REPAIR PREVENTATIVE MAINTENANCE (CONT D) Figure 49 Electrical System Inspection Figure 47 P008 P000 Check the aircraft light (Item ) [Figure 49] for operation and mounting hardware for being loose, damaged or missing. Rotate the light timer (Item ) [Figure 47] clockwise to the desired setting for light operation. NOTE: It is recommended not to force the timer to zero (0), this may damage the timer. Figure 48 P005 Check the stair lights (Item ) [Figure 48] (6) for operation and mounting hardware for being loose, damaged or missing. Equipment Model A227266D 5 Operation & Maintenance Manual

PREVENTATIVE MAINTENANCE (CONT D) Towbar Inspection Figure 50 Tire Inspection Set the stabilizers to have the tires off the ground. (See Stabilizers Setting And Releasing on Page 30.) Figure 52 P00076 P0042 Check the towbar (Item ) [Figure 50] for operation and mounting hardware for being loose, damaged or missing. Extend the towbar (Item ) [Figure 50] and check that the towbar is parallel with the ground. Adjust if necessary. (See Towbar Hold-Up Device Adjustment Leveling on Page 56.) Figure 5 Check both caster tires (Item ) [Figure 52] for excessive wear, tire rotation and caster rotation. Replace as necessary. (See Wheel Replacement on Page 57.) Figure 53 2 3 P004 P00 Check the towbar leveling spring (Item ) [Figure 5] for operation and mounting hardware for being loose, damaged or missing. Check both rear tires (Item ) [Figure 53] for excessive wear. Replace or rotate tires as necessary. (See Wheel Replacement on Page 57.) NOTE: When the tire is worn beyond the wear indicator (Item 2) [Figure 53], tire replacement is required. Check the torque on the wheel lug nuts (Item 3) [Figure 53]. Lug nut torque is 00 ft.-lb. (35.6 N m). Equipment Model A227266D 52 Operation & Maintenance Manual

MAINTENANCE AND REPAIR PREVENTATIVE MAINTENANCE (CONT D) Lubrication Locations IMPORTANT Fluid such as engine oil, hydraulic fluid, coolants, grease, etc. must be disposed of in an environmentally safe manner. Some regulations require that certain spills and leaks on the ground must be cleaned in a specific manner. See local, state and federal regulations for the correct disposal. I-203-003 Always use premium high temperature grease EP-2 or equivalent when lubricating the equipment. Grease each of the grease zerk with two pumps of the grease gun throughout the lubrication section. Wipe off excess grease. Prepare stair for maintenance. (See PREPARE FOR MAINTENANCE on Page 44.) Figure 54 5 6 2 3 4 P0007 Equipment Model A227266D 53 Operation & Maintenance Manual

PREVENTATIVE MAINTENANCE (CONT D) Figure 56 Lubrication IMPORTANT The average hand pump grease gun gives 2 oz. (60 cl) of grease per stroke. See the grease gun manfacturer for quantity of grease per pump. I-204-005 2 NOTE: Grease each of the grease zerk with two pumps of the grease gun throughout the lubrication section. Figure 55 Figure 57 P0022 2 P0042 P002 Lubricate the wheel (Item ) [Figure 54] and [Figure 55] (both sides). Lubricate the caster (Item 2) [Figure 54], [Figure 56] and [Figure 57] (both sides). Equipment Model A227266D 54 Operation & Maintenance Manual

MAINTENANCE AND REPAIR PREVENTATIVE MAINTENANCE (CONT D) Figure 60 Lubrication (Cont d) Figure 58 3 5 P0024 P0020 Lubricate the upper pivot (Item 5) [Figure 54] and [Figure 60] (both sides). Lubricate the lower pivots (Item 3) [Figure 54] and [Figure 58] (both sides). Figure 59 WARNING CRUSHING HAZARD Do not work between the stair risers without placing blocks between risers. W-204-026 Fully raise the stair. (See Stair Raising And Lowering on Page 3.) 4 Place blocks between riser channels. Figure 6 P0023 Lubricate the lower pivots (Item 4) [Figure 54] and [Figure 59] (both sides). 6 P0040 Lubricate the upper pivot (Item 6) [Figure 54] and [Figure 6] (both sides). Equipment Model A227266D 55 Operation & Maintenance Manual

MAINTENANCE PROCEDURES WARNING Check for correct function after adjustments, repairs or service. Failure to make correct repairs or adjustments can cause injury or death. W-203-003 Towbar Hold-Up Device Adjustment Leveling Figure 62 2 2 P00 Figure 63 P00076 Loosen the jam nut (Item ), turn the nuts (Item 2) [Figure 62] equally to adjust the towbar height (Item ) [Figure 63] until the towbar is parallel to the ground. Tighten the jam nut (Item ) [Figure 62]. Equipment Model A227266D 56 Operation & Maintenance Manual

MAINTENANCE AND REPAIR MAINTENANCE PROCEDURES (CONT D) Wheel Replacement Rear Tire: Properly lift the stair. (See Equipment Preparation For Shipping And Transportation on Page 36.) Front Caster: Properly lift the stair. (See Equipment Preparation For Shipping And Transportation on Page 36.) Place jackstands under the stair frame. Figure 65 Place jackstands under the stair frame. Figure 64 2 2 P0042 P004 Remove the lug nuts (Item ) and remove the tire (Item 2) [Figure 64]. Remove the cotter pin, nut and bolt (Item ) and remove the tire (Item 2) [Figure 65]. Installation: Install the tire and install the bolt, nut and cotter pin. Installation: Install the tire and install and tighten the lug nuts to 00 ft.-lb. (35.6 N m) torque. Equipment Model A227266D 57 Operation & Maintenance Manual

MAINTENANCE PROCEDURES (CONT D) Figure 67 Stabilizer Replacement NOTE: The stabilizer, cylinder, springs, mounting bracket and mounting hardware are replaced as an assembly. DANGER AVOID SERIOUS INJURY OR DEATH DO NOT attempt to remove the stabilizer springs / cap without using the proper lifting device and chains or straps. The stabilizer springs are under heavy tension when the stabilizer is in the released position. D-204-003 Release the stabilizers. (See Stabilizers Setting And Releasing on Page 30.) Figure 66 Lift the cap and springs (Item ) [Figure 67] and place next to stabilizer. Installation: Attach chains with hooks onto the stabilizer cap. Figure 68 P0044 2 P0045 P0043 Attach proper chains and hooks (Item ) to the stabilizer cap (Item 2) [Figure 66]. Attach chains to a proper lifting device. Disconnect the hydraulic hose (Item ) [Figure 68]. Installation: Connect the hydraulic hose. NOTE: Always use chains, hooks and straps that are of adequate size and strength when replacing stabilizers. 5 lb. (52. kg) of force is required to overcome the spring tension. Installation: Lift the stabilizer cap onto the cylinder. Equipment Model A227266D 58 Operation & Maintenance Manual

MAINTENANCE AND REPAIR MAINTENANCE PROCEDURES (CONT D) Stabilizer Replacement (Cont d) Figure 69 2 P0048 Remove the mounting hardware (Item ) and stabilizer assembly (Item 2) [Figure 69]. Installation: Install the stabilizer and mounting hardware. Equipment Model A227266D 59 Operation & Maintenance Manual

MAINTENANCE PROCEDURES (CONT D) Light Assembly Replacement Figure 70 NOTE: The aircraft light is being used as an example. The procedure is the same for all lights. Figure 72 P000 2 P008 Confirm the light switch (Item ) [Figure 70] is set to zero. NOTE: It is recommended not to force the timer to zero (0), this may damage the timer. Installation: Check the lights. Turn on the lights. Remove light assembly (Item ) from the rubber grommet (Item 2) [Figure 72]. Installation: Install the light assembly into the rubber grommet. Figure 73 Figure 7 P0026 P0006 Disconnect the negative (-) (Item ) [Figure 7] battery terminals. Disconnect the wires (Item ) [Figure 73]. Installation: Connect the wires. Installation: Connect the negative battery terminals. Equipment Model A227266D 60 Operation & Maintenance Manual

MAINTENANCE AND REPAIR SPECIFICATIONS Settings Not Applicable Lubricants Use premium high temperature grease EP-2 or equivalent. Hydraulic fluid use Dexron II or equivalent. Equipment Model A227266D 6 Operation & Maintenance Manual

SPECIFICATIONS (CONT D) Torque Values The following table shows standard torque specifications for bolts. in-lb (N m) ft-lb (N m) Thread Size 0.250 80-90 (9.0-0.2) 0.325 80-200 (20.3-22.6) 0.375 25-28 (34-38) 0.4375 40-45 (54-6) 0.500 65-70 (88-95) 0.5625 90-00 (22-36) 0.625 25-40 (70-90) 0.750 220-245 (300-330) 0.875 330-360 (450-490).000 475-525 (645-70).25 650-720 (880-975).250 900-000 (200-360).375 200-350 (630-830).500 500-650 (2040-2240).625 2000-2800 (2720-2980).750 2500-2750 (3390-3730).875 350-3500 (4270-4750) 2.000 3800-4200 (550-5700) SAE Grade 5 SAE Grade 8 0-20 (2.4-3.6) 25-240 (24.2-27.) 35-40 (47-54) 60-65 (8-88) 90-00 (22-36) 25-40 (70-90) 75-90 (240-260) 300-330 (40-450) 475-525( 645-70) 725-800 (985-085) 050-75 (425-600) 475-625 (2000-2200) 2000-2200 (2720-2980) 2600-2850 (3530-3870) 3450-3800 (4680-550) 4300-4800 (5830-6500) 5500-600 (7450-8300) 6500-7200 (8800-9800) Equipment Model A227266D 62 Operation & Maintenance Manual

MAINTENANCE AND REPAIR TROUBLESHOOTING Chart Instructions are necessary before operating or servicing equipment. Read and understand the Operation & Maintenance Manual, signs (decals) on equipment. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service. Untrained operators and failure to follow instructions can cause injury or death. W-203-002 Use the following troubleshooting chart to locate and correct problems which most often occur with the equipment. PROBLEM CAUSE CORRECTION Light does not work. Faulty or damaged light. Replace the light assembly. (See Light Assembly Replacement on Page 60.) Faulty battery or batteries. Check batteries condition. (See Battery Condition Check on Page 45.) Wiring problem. Troubleshoot the electrical system. (See Electrical Schematic on Page 64.) All the lights do not work. Batteries not charged. Charge the batteries. (See Charging Batteries on Page 35.) Faulty battery or batteries. Check batteries condition. (See Battery Condition Check on Page 45.) Wiring problem. Troubleshoot the electrical system. (See Electrical Schematic on Page 64.) Stair will not lower. Pressure relief valve set (closed). Reset pressure relief valve. (See Stair Raising And Lowering on Page 3.) Stair lowers when release valve is Hydraulic fluid level low. closed. Cylinder is bypassing inside (should see hydraulic fluid at the breather). Hydraulic system leak. Stabilizer(s) will not set or release. Hydraulic fluid level low. Stabilizer(s) are bypassing inside. Stabilizer(s) have broken spring. Check and fill the hydraulic tank. (See Hydraulic Fluid Level Check on Page 49.) Reset pressure relief valve. (See Hydraulic Fluid Level Check on Page 49.) Check hydraulic system for leaks. Check and fill the hydraulic tank. (See Hydraulic Fluid Level Check on Page 49.) Reset pressure relief valve. (See Hydraulic Fluid Level Check on Page 49.) Replace stabilizer. (See Stabilizer Replacement on Page 58.) Equipment Model A227266D 63 Operation & Maintenance Manual

SYSTEM SCHEMATICS Electrical Schematic AIRCRAFT LED LIGHT ASSEMBLY RED WIRE STAIR LED LIGHT ASSEMBLY (6 EA.) WHITE WIRE RED WIRE LOAD LINE TIMER RELAY WHITE WIRE BLACK WIRE BATTERY CHARGER BATTERIES (2) (2 V EACH) RELAY CHARGER CORD RED WIRE BLACK WIRE P0003 Equipment Model A227266D 64 Operation & Maintenance Manual

MAINTENANCE AND REPAIR SYSTEM SCHEMATICS (CONT D) Hydraulic Schematic BREATHER RELIEF VALVE PLATFORM CYLINDER STABLIZERS PRIORITY VALVE RELEASE VALVE HAND HYDRAULIC PUMP HYDRAULIC TANK P0004 Equipment Model A227266D 65 Operation & Maintenance Manual

Equipment Model A227266D 66 Operation & Maintenance Manual

OVERHAUL PROCEDURES OVERHAUL PROCEDURES (NOT APPLICABLE) THIS SECTION IS NOT REQUIRED FOR THIS EQUIPMENT. Equipment Model A227266D 67 Operation & Maintenance Manual

Equipment Model A227266D 68 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LISTS ILLUSTRATED PARTS LIST..................................................7 Introduction.............................................................7 Part Procurement........................................................7 Explanation Of Parts Lists..................................................7 Passenger Stair / Crewstair................................................72 Rear Wheel Hub And Spindle Assembly......................................73 Step Assembly..........................................................74 Platform, Sliding Guardrail Assembly.........................................76 Platform Bumper Swivel Assembly...........................................78 Front Caster Assembly (A004839A)..........................................80 X-Frame Assembly (A227273B).............................................82 Towbar Assembly........................................................84 Running Gear Assembly...................................................85 Decals.................................................................86 Electrical Schematic (A227550B)............................................88 Hydraulic Schematic (A229376B)............................................90 Hydraulic Tank Assembly (A227557B)........................................92 Equipment Model A227266D 69 Operation & Maintenance Manual

Equipment Model A227266D 70 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST Introduction These parts lists are broken down into ten sub assemblies. For locations of the parts lists see page 72. Part Procurement To order parts have the serial number of the equipment available. (See Equipment Serial Number on Page 4.) Contact: WASP Incorporated PO Box 249 2063 State Highway 55 Glenwood, MN 56334 320-634-5886 Explanation Of Parts Lists The parts lists are broken down into four columns: ITEM NO. - These numbers are found on the illustration associated with the parts list. PART NO. - These are the part numbers associated to the ITEM NO. DESCRIPTION - This is the description of the part. QTY. - This is the quantity of parts needed in an assembly. Equipment Model A227266D 7 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Passenger Stair / Crewstair 4 9 2 8 4 3 6 2 0 8 5 P0027 ITEM NO. DESCRIPTION PAGE # REAR WHEEL HUB AND SPINDLE ASSEMBLY 73 2 STEP ASSEMBLY 74 3 PLATFORM SLIDING GUARDRAIL ASSEMBLY 76 4 PLATFORM BUMPER SWIVEL ASSEMBLY 78 5 FRONT CASTER ASSEMBLY (A004839A) 80 6 X-FRAME ASSEMBLY (A227273B) 82 7 TOWBAR ASSEMBLY 84 8 RUNNING GEAR ASSEMBLY 85 9 DECALS 86 0 ELECTRICAL SCHEMATIC (A227550B) 88 HYDRAULIC SCHEMATIC (A229376B) 90 2 HYDRAULIC TANK ASSEMBLY (A227557B) 92 Equipment Model A227266D 72 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Rear Wheel Hub And Spindle Assembly 5 5B 5C 5E 2 4 3 5D 5G 5A 5F P0049 ITEM NO. PART NO. DESCRIPTION QTY. P057493A SPINDLE 2 H00622 DUST COVER 3 P002022A NUT, MODIFIED 4 H00005 COTTER PIN, /8IN. X 2IN. LG. 5 H0009 HUB ASSEMBLY 5A H00977 BEARING CONE 5B H00978 BEARING CONE 5C H00980 GREASE SEAL 5D H00980 GREASE SEAL 5E H00982 LUG NUT 5 5F H00296 DRIVE GREASE ZERK, 3/6 IN. 5G H00530 WASHER,.8 IN. OD X 0.765 IN. ID 9 GA. Equipment Model A227266D 73 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Step Assembly 2 3 5 4 6 2 0 3 7 8 9 6 7 5 4 8 9 20 2 20 22 24 23 2 P0046 Equipment Model A227266D 74 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Step Assembly (Cont d) ITEM NO. PART NO. DESCRIPTION QTY. W25400B LH HANDRAIL WELDMENT 2 W25576A STAIR PANEL WELDMENT 3 W25579A STAIR PANEL WELDMENT 4 W26474B LOWER STAIR CHANNEL WELDMENT 2 5 W25386B RH HANDRAIL WELDMENT 6 P066386A ROD 2 7 H00033 CAPSCREW,.50 NC X.50, GR 5 4 8 H00654 GREASE ZERK,.88 STR DRIVE 4 9 P066425A SHIM 4 0 W006852A LOWER STEP WELDMENT H0025 CAPSCREW,.375 NC X.25, GR 5 60 2 H003062 CAPSCREW,.75 NC X 6.50, GR 5 4 3 W24930B PIVOT SPANNER BUSHING 4 4 H0005 NUT, NYLOK,.75 NC 4 5 A25405A STEP ASSEMBLY 5 6 H0000 NUT, NYLOK,.38 NC 60 7 H00008 WASHER, FLAT,.375, ZP 60 8 W26486A UPPER DRIP PAN WELDMENT 9 W26308B CYLINDER MOUNT WELDMENT 20 H004977 WASHER, LOCK,.375, ZP 4 2 H0005 CAPSCREW,.38 NC X.00, GRD 5 8 22 P26484A RISER PAN 23 W25566A STAIR PANEL WELDMENT 24 W25567A STAIR PANEL WELDMENT Equipment Model A227266D 75 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Platform, Sliding Guardrail Assembly 5 8 0 9 7 7 8 6 5 9 4 2 3 2 6 3 4 5 P0037 Equipment Model A227266D 76 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Platform, Sliding Guardrail Assembly (Cont d) ITEM NO. PART NO. DESCRIPTION QTY. H00490 SPRING, EXTENSION 2 2 H0025 CAPSCREW,.375 NC X.25, GR 5 2 3 P06599A FLAT, LATCH 2 4 H0000 NUT, NYLOK,.38 NC 2 5 H0000 NUT, NYLOK,.50 NC, ZP 2 6 P0662A WASHER 2 7 A005078A WHEEL ASSY, HANDRAIL 4 8 P065843A BUSHING, WHEEL 6 9 H00053 CAPSCREW,.50 NC X 2.00, GR 5 4 0 H00066 WASHER, FLAT,.50, ZP 4 W227279A SLIDING GUARDRAIL WELDMENT 2 W227298A SLIDING GUARDRAIL WELDMENT 3 H00697 SCREW, TEK,.25 X.50, ZP 2 4 P227457A BOLT STRIP 2 5 P227455A HANDRAIL BUMPER 2 6 W00676C PLATFORM WELDMENT Equipment Model A227266D 77 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Platform Bumper Swivel Assembly 7 2 5 6 8 9 0 4 2 3 3 4 5 P0038 Equipment Model A227266D 78 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Platform, Bumper Assembly (Cont d) ITEM NO. PART NO. DESCRIPTION QTY. A227330B TREAD GRIP SHEET 2 H0000 NUT, NYLOCK,.50 NC, ZP 4 3 H00042 BEARING, FIBERGLIDE JOURNAL 2 4 P222303A SPACER, 0.25 IN. 5 P227342A STRIP, RUB 6 H02685 RIVET, BLIND,.9 X.25 GRIP 9 7 H00330 CAPSCREW, FLATHEAD,.25 NC X.00 5 8 W227302B BACK PLATE WELDMENT 9 W22734B BUMPER MOUNT WELDMENT 0 P06649A STAIR BUMPER W227302B BACK PLATE WELDMENT 2 H0039 CAPSCREW,.50 X 2.25 ZP 5 3 H004942 NUT, NYLOK JAM,.75 NC, ZP 3 4 H003 /4 X.00" TEK SCREW 2 5 W227554A LIGHT MOUNT WELDMENT Equipment Model A227266D 79 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Front Caster Assembly (A004839A) 3 8 7 3 8 5 4 4 2 9A 9B 9 9E 5 6 7 2 9B 9D 9G 2 9C 9F 9C 0 P0029 Equipment Model A227266D 80 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Front Caster Assembly (A004839A) (Cont d) ITEM NO. PART NO. DESCRIPTION QTY. W00653A CASTER WELDMENT 2 W006532A HUB WELDMENT 3 H00004 FLAT WASHER 4 H00040 BEARING CONE #3685 5 H00039 BEARING CUP #362 2 6 H00038 BEARING CONE #3600LA 7 H0008 NUT, SLOTTED, HEX,.00 IN. N.F. 2 8 H0048 COTTER PIN, 0.88 IN. X.50 IN. 2 9 H00035 HUB ASSEMBLY, PAINTED BLACK 9A H00226 GREASE SEAL #5233VHY 9B H00762 BEARING CONE #LM67048 2 9C H00763 BEARING CUP #LM6700 2 9D H00764 GREASE SEAL #5234VB 9E H00982 LUG NUT, 0.50 IN. NF, ZP 5 9F H0074 GREASE ZERK, 0.88 IN. X 45 9G H0098 BUSHING,.25 IN. X.88 IN. X 4 G. 0 P065854A TIRE & RIM ASSEMBLY P064906A CAPSCREW, MOD. CASTER 2 P064907A SPACER BUSHING 2 3 H0004 DUST CAP 4 H00076 GREASE FITTING, /4 IN.-28 N.F. 90 Equipment Model A227266D 8 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) X-Frame Assembly (A227273B) 2 3 6 3 4 4 2 23 8 24 P0030 Equipment Model A227266D 82 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) X-Frame Assembly (A227273B) (Cont d) ITEM NO. PART NO. DESCRIPTION QTY. W227272B X-FRAME WELDMENT 2 W27256A LATCH WELDMENT 3 P060973A INNER TUBE 2 4 P25530A INNER STRUT TUBE 2 5 P00543A BUSHING, SPANNER 2 6 W00705A CHANNEL WELDMENT 7 P005430A BUSHING, SPANNER 2 8 H002 CAPSCREW, 3/8 IN. NC X 2 /2 IN. GR. 5 4 9 H00008 WASHER, 3/8 IN. FLAT 2 0 H0000 NUT, 3/8 IN. NC NYLOK 6 H00855 PIN, ROLL, 3/6 IN. X /4 IN. 2 2 H004977 WASHER, 3/8 IN. LOCK 2 3 H0005 CAPSCREW, 3/8 IN. NC X IN. 2 4 H00669 SPRING, EXTENSION 2 5 H00307 YOKE, BRAKE, 3/8 IN. PIN DIAMETER 2 6 H00308 NUT, JAM, 3/8 IN. NF 2 7 H00073 CAPSCREW, 3/8 IN. NC X /2 IN. 2 8 W27335A HANDLE WELDMENT, AUTO LATCH" 9 H205856 BOLT, SHOULDER, /2 IN. X /4 IN. 20 H00272 NUT, JAM, 3/8 IN. NC NYLOK 2 H005899 HANDLE GRIP 22 P06252A DECAL, TO UNLATCH X-BRACE. 23 P25536A LINKAGE ROD 24 A22738A INDICATOR ASSEMBLY Equipment Model A227266D 83 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Towbar Assembly 2 3 4 5 3 7 4 8 6 9 P0032 ITEM NO. PART NO. DESCRIPTION QTY. W227892A TOWBAR WELDMENT 2 H005627 DECAL, WARNING, TOW SPEED 3 P227463A DECAL, TOWBAR UP 2 4 P2804A DECAL, DANGER, PINCH POINT 2 5 H003066 CAPSCREW, 0.75 IN. NC X 0 IN. GR 5 6 P059837A BUSHING, POLE SPANNER 7 A227870A TOWBAR HOLD-UP ASSEMBLY 8 H0735 COLLAR, SETSCREW,.50 IN. ID 9 H0005 NUT, NYLOK, 0.75 IN. NC Equipment Model A227266D 84 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Running Gear Assembly 3 4 2 P0047 ITEM NO. PART NO. DESCRIPTION QTY. W229343D FRONT RUNNING GEAR WELDMENT 2 A00537A STABILIZER JACK ASSEMBLY 2 3 W22803A SUPPORT TUBE WELDMENT 2 4 W228222A TROUGH WELDMENT Equipment Model A227266D 85 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Decals 0 9 3 5 2 3 4 5 3 6 7 9 8 26 22 23 2 24 26 5 7 6 5 3 5 4 2 27 2 2 8 9 28 25 20 29 3 P0027 30 P0050 P0027 Equipment Model A227266D 86 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Decals (Cont d) ITEM NO. PART NO. DESCRIPTION QTY. P202A REFLECTOR, RED / WHITE IN. X 2 IN. 4 2 H004506 REFLECTOR, DOT, AMBER RECT 2 3 P2804A DECAL, PINCH POINT 6 4 P0562A DECAL, WARNING TO AVOID INJURY 5 P2020A REFLECTOR, RED / WHITE 2 IN. X 2 IN. 3 6 P22739A WIND DECAL 7 P06252A DECAL, LATCH HANDLE 8 P22766A TAPE, REFLECTIVE 9 P053867A DECAL, WARNING, MAX CAPACITY 4 0 P065750A DECAL, RETRCT GATE FULLY 2 P068065A DECAL, WARNING 2 P068066A DECAL, MAX. CAPACITY 3 P068067A DECAL, 500 LBS. 4 P22799A DECAL, STAIR OPERATION 5 P227479A DECAL, WARNING DO NOT OPERATE WITH OCCUPANTS 6 P005627A DECAL, WARNING TOW SPEED 7 P227463A DECAL, TOWBAR / STABILIZER REQUIREMENTS 2 8 P054070A DECAL, RECOMMENDED FLUID 9 P227484A DECAL, FLUID LEVEL 20 P227474A DECAL, OPEN / CLOSE 2 P050603A DECAL, RELEASE VALVE MAXIMUM OPEN 22 P227662A TAPE, REFLECTIVE 23 P227663A TAPE, REFLECTIVE 24 P227663A TAPE, REFLECTIVE 25 P0526A DECAL, PRIORITY VALVE 26 H004507 REFLECTOR, RECT, RED 5 27 H006067 DECAL, DANGER, PINCH POINT 2 28 P064306A DECAL, TIMER CONTROLLED 29 P065637A DECAL, TIMER 30 P064304A DECAL, LIGHTS 3 P063779A DECAL, 0 BOLT Equipment Model A227266D 87 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Electrical Schematic (A227550B) 26 27 4 28 29 7 5 7 5 7 2 3 2 3 20 23 3 0 5 6 2 5 4 7 9 5 25 20 25 23 4 TIMER LINE LOAD 8 5 5 6 2 6 2 6 9 22 7 23 8 9 22 4 6 24 P0003 Equipment Model A227266D 88 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Electrical Schematic (A227550B) (Cont d) ITEM NO. PART NO. DESCRIPTION QTY. H006570 RECEPTACLE 2 H006569 BATTERY, DEEP CYCLE, 2 VOLT 2 3 A005424A BATTERY CHARGER ASSEMBLY 4 H00685 SWITCH, INTERVAL TIMER 5 H00346 CHASSIS CLIP 2 6 H003423 BOX, BATTERY 2 7 H00573 SPLICE TAP #3572 30 8 H00739 RELAY #7525 9 H003822 BREAKER, CIRCUIT, 20 AMP. 0 P067328A HOLD DOWN, BATTERY CHARGER A24603A LIGHT ASSEMBLY, LED 7 2 H006647 GROMMET, RUBBER 6 3 H0090 R-CLAMP, 3/8 IN. 0 4 H005680 CONNECTOR, WIRE, #393 48 5 H00568 CONNECTOR, WIRE, #3903 5 6 H005709 CONNECTOR, WIRE, #3904 3 7 H00573 CONNECTOR, WIRE, #32902 3 8 H00574 CONNECTOR, WIRE, #32903 9 H006676 CONNECTOR, WIRE, #32904 3 20 H00575 CONNECTOR, WIRE, #32905 3 2 H005407 CORD, 92 IN.4-2 22 H005746 WIRE (WHITE), 32 IN.0 GA. 23 H005589 WIRE (RED), 30 IN.0 GA. 24 H005754 WIRE (WHITE), 2 IN.4 GA. 25 H005747 WIRE (RED), 60 IN. 4 GA. 26 NA WIRE, 4-2 CORD, 7 FT. (23.3 CM), BLACK AND WHITE REF. 27 NA WIRE, 4-2 CORD, 5 FT. (52.4 CM), BLACK AND WHITE REF. 28 NA WIRE, 4-2 CORD, 3 FT. (944.9 CM), BLACK AND WHITE REF. 29 NA WIRE, 4-2 CORD, 33 FT. (975.4 CM), BLACK AND WHITE REF. Equipment Model A227266D 89 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Hydraulic Schematic (A229376B) 2 5 8 0 6 7 20 3 9 3 4 5 8 2 4 9 7 6 P0004 Equipment Model A227266D 90 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Hydraulic Schematic (A229376B) (Cont d) ITEM NO. PART NO. DESCRIPTION QTY. H00435 HYD. SWIVEL, 3/8 IN. M. NPT X 3/8 IN. F. 90 2 H002059 HYD. TEE, 3/8IN. F. NPT 3 H0020 HYD. PIPE NIPPLE 3/8 IN.NPT 4 A0087A HYD. HOSE ASSEMBLY, 3/8 IN. X 27 IN. LG. 5 H002230 BREATHER PLUG, 3/8 IN. 6 H004793 FLOW FUSE CARTRIDGE 7 A002948A HYD. HOSE ASSEMBLY, 3/8 IN. X 96 IN. LG. 8 A002630A HYD. HOSE ASSEMBLY, 3/8 IN. X 22 IN. LG. 9 H00576 HYDRAULIC CYLINDER, -/2 IN. X 4 IN. STROKE (STABILIZER) 2 0 H20603 HYDRAULIC CYLINDER, 2 IN. X 52 IN. H00203 SWIVEL, FEMALE STRAIGHT, 3/8 IN. NPT X 3/8 IN. 4 2 H002466 ELBOW, FEMALE 90. ST., 3/8 IN. NPT X 3/8 IN. 3 A003663A HYD. HOSE ASSEMBLY, 3/8 IN. X 78 IN. LG. 4 H00578 VINYL COATED CLAMP, 5/8 IN. 5 H00022 SCREW, SELF DRILLING TEK, ZP, /4 IN. X 3/4 IN. 6 A227557B HYDRAULIC TANK ASSEMBLY REF. 7 P054552A SPACER FLAT 8 W007402A BREATHER CAP 9 H002466 HYDRAULIC ELBOW, STREET, 90, 5502-6 20 H002489 HYDRAULIC PIPE ELBOW, MALE 90 Equipment Model A227266D 9 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST (CONT D) Hydraulic Tank Assembly (A227557B) 3 5 6 25 26 20 7 4 0 4 22 3 2 33 27 8 22 9 8 2 2 9 6 24 23 7 2 34 6 7 28 29 30 32 3 P003 Equipment Model A227266D 92 Operation & Maintenance Manual

ILLUSTRATED PARTS LIST ILLUSTRATED PARTS LIST (CONT D) Hydraulic Tank Assembly (A227557B) (Cont d) ITEM NO. PART NO. DESCRIPTION QTY. W25859A PUMP TANK ASSEMBLY 2 H00796 HAND PUMP 3 P205323A VALVE, BALL, 3-WAY, 3/8 IN. NPT 3-WAY 4 H00805 VALVE, GATE, 3/8 IN. REGO 5 H00959 CAPSCREW, /4 IN. NC X 2 3/4 IN., GR. 5 2 6 H00027 NUT, NYLOK, /4 IN. NC 3 7 H00435 ELBOW, HYDRAULIC SWIVEL, 90 2 8 H002466 ELBOW, STREET, HYDRAULIC, 5502-6-6 3 9 A26566A FITTING ASSEMBLY, MODIFIED 0 H26090 FITTING, PIPE CROSS HYDRAULIC H0020 NIPPLE, PIPE, MALE, HYDRAULIC, 5404-6 2 H00203 ADAPTER, MALE, HYDRAULIC SWIVEL 2 3 H00067 NUT, JAM, 3/4 IN. NF 4 H2066 RELIEF VALVE, 600 PSI 5 H002208 5406-P-6 HYDRAULIC HEX HEAD PLUG (NOT SHOWN) 6 H00282 CAP, BREATHER, THREADED, IN. 7 H00237 O-RING, 6900-6-6 HYDRAULIC SWIVEL 8 H00204 ELBOW, HYDRAULIC SWIVEL, 503-6-6 9 H00227 O-RING, 90 HYDRAULIC SWIVEL 20 P0526A DECAL, PRIORITY VALVE 2 P050603A DECAL, RELEASE VALVE 22 P054070A DECAL, DEXRON III 23 A26099A HOSE ASSEMBLY, 3 IN. 2 24 H0076 CAPSCREW, /4 IN. NC X /2 IN. 25 H005645 WASHER, FENDER, /4 IN. 26 H005644 CAPSCREW, 6 MM X X 2MM ZP 27 P227498A HANDLE, PUMP 28 H002994 CAPSCREW, 3/8 IN. NC X 6 IN., GR. 5 2 29 H00008 WASHER, FLAT, 3/8 IN. 2 30 H0000 NUT, NYLOK, 3/8 IN. 2 3 A002934A HOSE ASSEMBLY, 3/8 IN. X 29.00 32 A003529A HOSE ASSEMBLY, 3/8 IN. X 38.00 33 P227474A DECAL, CLOSE 34 P227484A DECAL, FLUID LEVEL Equipment Model A227266D 93 Operation & Maintenance Manual

Equipment Model A227266D 94 Operation & Maintenance Manual

MANUFACTURER S APPENDICES MANUFACTURER S APPENDICES BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA)....97 Description.............................................................97 Safety.................................................................98 Operation..............................................................99 Maintenance...........................................................03 Battery Charger Troubleshooting (Model JYVA)..............................04 Battery Charger Warranty.................................................06 Equipment Model A227266D 95 Operation & Maintenance Manual

Equipment Model A227266D 96 Operation & Maintenance Manual

MANUAFACTURER S APPENDICES BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) Description P00088 Equipment Model A227266D 97 Operation & Maintenance Manual

BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) (CONT D) Safety P00090 Equipment Model A227266D 98 Operation & Maintenance Manual

MANUAFACTURER S APPENDICES BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) (CONT D) Operation P0009 Equipment Model A227266D 99 Operation & Maintenance Manual

BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) (CONT D) Operation (Cont d) P00092 Equipment Model A227266D 00 Operation & Maintenance Manual

MANUAFACTURER S APPENDICES BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) (CONT D) Operation (Cont d) P00093 Equipment Model A227266D 0 Operation & Maintenance Manual

BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) (CONT D) Operation (Cont d) P00094 Equipment Model A227266D 02 Operation & Maintenance Manual

MANUAFACTURER S APPENDICES BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) (CONT D) Maintenance P00095 Equipment Model A227266D 03 Operation & Maintenance Manual

BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) (CONT D) Battery Charger Troubleshooting (Model JYVA) P00096 Equipment Model A227266D 04 Operation & Maintenance Manual

MANUAFACTURER S APPENDICES BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) (CONT D) Battery Charger Troubleshooting (Model JYVA) (Cont d) P00097 Equipment Model A227266D 05 Operation & Maintenance Manual

BATTERY CHARGER OPERATING INSTRUCTIONS (WESTWARD MODEL JYVA) (CONT D) Battery Charger Warranty P00099 Equipment Model A227266D 06 Operation & Maintenance Manual