*TM P TECHNICAL MANUAL HEADQUARTERS, DEPARTMENT OF THE ARMY MAY 2007

Transcription

1 *TM P TECHNICAL MANUAL REPAIR PARTS AND SPECIAL TOOLS LIST FOR ALL-TERRAIN CRANE (ATEC) AT-422T DIESEL ENGINE DRIVEN, 22 TON CAPACITY TRUCK MOUNTED WITH CAB NSN *Supersedes TM P dated 1 November DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. HEADQUARTERS, DEPARTMENT OF THE ARMY MAY 2007

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3 INSERT LATEST CHANGED PAGES. DESTROY SUPERCEDED DATA. LIST OF EFFECTIVE PAGES NOTE: The portion of text affected by the changes is indicated by a vertical line in the outer margins of the pages. Added illustrations are indicated by a vertical bar adjacent to the figure number. Changed illustrations are indicated by change bars in the outside margin adjacent to the updated area and a change bar adjacent to the figure number. Dates of issue for original and changed pages are: Original May 2007 TOTAL NUMBER OF PAGES FOR THIS MANUAL IS 1004 CONSISTING OF THE FOLLOWING: Page No. *Change No. Page No. *Change No. Page No. *Change No. Cover 0 Blank 0 i viii Divider 0 Section II Figures 1 thru Pages thru Figures A-1 0 thru A-5 Pages A thru A-5-1 Figures B-1 0 thru B-19 Pages B thru B-19-1 Kits-1 & Kits-2 0 Divider 0 Section IV I-1 thru I * Zero in this column indicates an original page. A

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5 *TM P HEADQUARTERS, DEPARTMENT OF THE ARMY WASHINGTON D.C., 15 MAY 2007 TECHNICAL MANUAL REPAIR PARTS AND SPECIAL TOOLS LIST FOR ALL-TERRAIN CRANE (ATEC) AT-422T DIESEL ENGINE DRIVEN, 22 TON CAPACITY TRUCK MOUNTED WITH CAB NSN REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this publication. If you find any mistakes or if you know of a way to improve the procedures, please let us know. Submit your DA Form 2028 (Recommended Changes to Equipment Technical Publications), through the Internet, on the Army Electronic Product Support (AEPS) website. The Internet address is The DA Form 2028 is located under the Public Applications section in the AEPS Public Home Page. Fill out the form and click on SUBMIT. Using this form on the AEPS will enable us to respond quicker to your comments and better manage the DA Form 2028 program. You may also mail, fax or your letter or DA Form 2028 direct to: TACOM Life Cycle Management Command, AMSTA-LC-LPIT/ TECH-PUBS, 1 Rock Island Arsenal, Rock Island, IL The address is ROCK-TACOM-TECH- PUBS@conus.army.mil. The fax number is DSN or Commercial (309) Section/Figure Title TABLE OF CONTENTS Page SECTION I INTRODUCTION Scope... 1 General... 1 Explanation of Columns (Sections II and III)... 1 Explanation of Columns (Section IV)... 5 Special Information... 6 How to Locate Repair Parts... 7 Abbreviations... 7 SECTION II REPAIR PARTS LIST Group 01 Diesel Engine Engine Installation Cummins 6BTA Cylinder Head Installation Cylinder Block Assembly Crankshaft and Vibration Damper Assembly Flywheel and Flywheel Housing Installation Piston and Connecting Rod Assembly Rocker Lever, Push Rod, and Valve Assembly Camshaft, Camshaft Gear, and Valve Tappet Installation Front Gear Cover Installation Cam Follower Cover Installation Valve Cover Installation Tachometer Drive Cover Installation *Supersedes copy dated 1 November Approved for public release; distribution is unlimited. i

6 Section/Figure Title TABLE OF CONTENTS (Continued) Page Group 01 Diesel Engine (Cont d) Oil Cooler Assembly Lubricating Filter Installation Oil, Full Flow Oil Pan and Oil Level Dipstick Installation Oil Pump Installation Lubricating Manifold Installation Intake and Exhaust Group 03 Fuel System Fuel Injector Installation Pump Installation Bosch Fuel Injection and Fuel Transfer (Lift) Air Cleaner Installation and Assembly Turbocharger Installation Air Fuel Control/Turbocharger Wastegate Lines Installation Fuel Tank and Right Hand Step Installation and Fuel Tank Assembly 44 Gallon Fuel Lines Installation Fuel Lines Installation Engine, External Assembly Shutoff Valve Installation Fuel Filter Installation Fuel Heated Fuel Filter/Water Separator Installation Cold Start Kit Installation and Assembly Fuel Throttle Cylinder Installation and Throttle Linkage Assembly Cylinder Assembly Throttle Pedal Installation Accelerator (Carrier Cab) Pedal and Valve Installation Air Throttle (Superstructure Cab) Group 04 Exhaust System Exhaust System Installation Group 05 Cooling System Radiator Installation and Assembly Thermostat Housing, Thermostat, and Engine Vent Installation Water Inlet Installation Hoses Installation Radiator Water Pump Installation Fan, Fan Drive, and Drive Belt Installation Group 06 Electrical System Alternator Installation Starter Motor Installation Console Installation and Assembly Front (Carrier Cab) Console Installation and Assembly Front (Superstructure Cab) Switch Installation Modified Limit Harness Installation Engine Fuse and Relay Panel Assembly Junction Box Assembly Stowage Installation Emergency Box Assembly Emergency Stowage Electrical Exterior Lights Installation Headlight Assembly Light Assembly Composite Front Turn Signal, Park, and Marker 24 Volt Light Assembly Composite Tail, Stop, Turn Signal, and Marker 24 Volt ii

7 Section/Figure Title TABLE OF CONTENTS (Continued) TM P Page Group 06 Electrical System (Cont d) Light Assembly Triple Identification 24 Volt Clearance Light Assembly Flood and Dome Lamp Installation Sending Units/Warning Switches Installation Alarm Installation Back-Up and Horn Installation Horn Installation (Superstructure Cab) Batteries, Battery Cables, Battery Disconnect, and NATO Slave Receptacle Installation Electrical System Installation (Carrier) Harness Assembly Carrier Harness Assembly Carrier Link Harness Assembly Carrier Link Harness Assembly Carrier Link Harness Assembly Carrier Link Harness Assembly Junction Box Internal Wire Harness Assembly Engine Harness Assembly Engine Link, Cummins Electrical System Installation (Superstructure) Harness Assembly Superstructure Harness Assembly Slip Ring Link Harness Installation Cab (Carrier) Harness Assembly Cab (Carrier) Harness Installation Front Console (Carrier Cab) Harness Assembly Front Console (Carrier Cab) Harness Installation Front Console (Superstructure Cab) Harness Assembly Front Console (Superstructure Cab) Harness Assembly Seat Switches (Superstructure Cab) Group 07 Transmission Box Installation APC Transmission Installation Long Drop Transmission Assembly Long Drop 6 Speed Electric Control Valve Mounting Group Valve Assembly Torque Converter Lockup, 24 Volt Modular Control Installation Shift (Carrier Cab) Control Installation Shift (Superstructure Cab) Relay, Valve, and Pressure Switch Installation Transmission Transmission Assembly - Long Drop Converter Housing and Transmission Case and Rear Cover Groups Transmission Assembly Long Drop Turbine Shaft, Stator Support, Oil Baffle, Drive Plate, and Torque Converter Group Transmission Assembly Long Drop Auxiliary Pump Drive, Charging Pump Drive, and Reverse Idler Group Transmission Assembly Long Drop Forward Shaft Group Transmission Assembly Long Drop Reverse and Second Shaft Group Transmission Assembly Long Drop Low Shaft Group Transmission Assembly Long Drop Forward, High, and Third Shaft Group iii

8 Section/Figure Title TABLE OF CONTENTS (Continued) Page iv Group 07 Transmission (Cont d) Transmission Assembly Long Drop Idler Shaft, Output Shaft, and Charging Pump and Filter Assembly Group Filter and Sampling Valves Installation Transmission Cooler Installation and Assembly Transmission Oil, 24 Volt Group 09 Propeller and Propeller Shafts Drive Lines Installation and Assembly Group 10 Front Axle Axle Installation - Front Front Axle Assembly U-Joint and Wheel Parts Front Axle Assembly Differential Parts Front Axle Assembly Planetary Gear Parts Group 11 Rear Axle Axle Installation - Rear Rear Axle Assembly U-Joint and Wheel Parts Rear Axle Assembly Differential Parts Rear Axle Assembly Planetary Gear Parts Group 12 Brakes Front Axle Assembly Brake Parts Rear Axle Assembly Brake Parts Chamber Installation Brake (Front Axle) Chamber Installation Brake (Rear Axle) Chamber Assembly Brake, Type 16 (Front Axle) Chamber Assembly Brake, Type 16/16 (Front Axle) Chamber Assembly Brake (Rear Axle) Air Tanks, Automatic Drain Valve, and Valves Installation Dryer Assembly Air, 24 Volt (Type 1) Dryer Assembly Air, 24 Volt (Type 2) Valve Assembly Brake (Carrier Cab) Control Installation Trailer Air Supply and Parking Brake Control (Carrier Cab) Valve Installation Brake (Superstructure Cab) Valve Installation Park Brake Control (Superstructure Cab) Air Lines Installation (Carrier) Air Lines Installation Cab (Carrier) Air Lines Installation Console (Carrier) Air Lines Installation Cab and Console (Superstructure) Air Compressor Assembly (Holset) Air Compressor Assembly (Cummins) Air Compressor Inlet Piping Installation Air Compressor Coolant Piping Installation Air Governor Installation Tire Inflation Kit Assembly Group 13 Wheels and Tracks Cylinder Installation Lockout, 3-1/2 (Front Axle) Cylinder Installation Lockout, 3-1/2 (Rear Axle) Cylinder Assembly Lockout, 3-1/ Tire and Wheel Installation and Assembly

9 Section/Figure Title TABLE OF CONTENTS (Continued) TM P Page Group 13 Wheels and Tracks (Cont d) Spare Tire Installation Group 14 Steering Column and Wheel Installation Steering (Carrier Cab) Column Assembly Steering (Carrier Cab) Column and Wheel Installation Steering and Valve Installation Steering Control (Superstructure Cab) Column Assembly Steering (Superstructure Cab) Steering Gear, Steering Miter Gear, Relay Shaft, and Drag Link Installation (Carrier) Gear Assembly Steering Drag Link Assembly Pump Installation Main Steering Emergency Steering Pump and Valve and Flow Regulator Installation and Assembly Hydraulic Lines Installation Steering Cylinder Installation Steering, 2-1/ Cylinder Assembly Steering, 2-1/ Cylinder Installation Steer Lock (Rear Axle) Group 15 Frame, Towing, and Attachments Frame Section Carrier Stud Installation Weld Pintle Hook Installation Beam Installation and Assembly Outrigger Stowage Installation Outrigger Float Assembly Group 18 Body, Cab, Hood, and Hull Cab Installation (Carrier) Cab Weldment Assembly (Carrier) Cab Assembly (Carrier) Door Assembly (Carrier Cab) Acoustics and Floor Mat Installation (Carrier Cab) Cab Installation (Superstructure) Cab Weldment Assembly (Superstructure) Door and Window Assemblies Cab (Superstructure) Rifle Bracket, Manual Holder, and Rear Cover Installation (Superstructure Cab) Glass Installation (Superstructure Cab) Acoustics and Floor Mat Installation (Superstructure Cab) Fenders and Decking Installation Cover and Door Installation and Assembly Valve Decontamination Kit Bracket Installation Hood Installation Engine Seat Installation (Carrier Cab) Seat Installation Dual Axis Control (Superstructure Cab) Seat Assembly Dual Axis Control (Superstructure Cab) Group 22 Body, Chassis, and Accessories Mirror, Mirror Arm, and Bracket Installation Cab Rear View (Left Side) Mirror, Mirror Arm, and Bracket Installation Cab Rear View (Right Side) Mirror Installation Hoist Fan Installation Cab 24 Volt Modified v

10 Section/Figure Title TABLE OF CONTENTS (Continued) Page vi Group 22 Body, Chassis, and Accessories (Cont d) Fan Installation Cab Console (Superstructure) Motor, Arm, and Harness Installation Windshield Wiper (Carrier Cab) Motor, Arm, Harness, and Reservoir Installation Windshield Wiper (Superstructure Cab) Wiper Installation Skylight (Superstructure Cab) Heater Installation and Assembly Cab, 24 Volt Hot Water (Carrier) Heater Installation Cab (Superstructure) Heater Assembly Cab (Superstructure) Heater Assembly Cab Carburetor Assembly (Superstructure) Heater Assembly Cab Auto-start Control Panel Cab (Superstructure) Heater Fuel Tank/Pump and Exhaust Installation Cab (Superstructure) Data Plate and Decal Installation Group 24 Hydraulic System Pump and Pump Disconnect Installation Main Hydraulic Valve Installation Holding (Pilot Check), Outrigger Stabilizer Cylinder Valve Installation Hydraulic (Carrier) Valve Assembly Integrated Outrigger/Steering Valve Stack Assembly Outrigger Solenoid, 4 Section Valve Installation Hydraulic Power Steering (Stand-by Valve & Flow Switch, Double Selector, and Single Selector Valves) Valve Installation Hoist Motor Control Valves Installation Hydraulic (Superstructure) Valve Assembly Directional Control, 5 Section Valve Assembly Swing Directional Control, 1 Section Valve and Control Pedal Installation Swing Brake and Telescope (Superstructure Cab) Valve Installation Joy Stick (Superstructure Cab) Oil Cooler Installation and Assembly Hydraulic Hydraulic Lines Installation Carrier Hydraulic Lines Installation Steering (Carrier) Hydraulic Lines Installation Outrigger (Carrier) Hydraulic Lines Installation Axle Lockout (Carrier) Hydraulic Lines Installation Superstructure Hydraulic Lines Installation Superstructure Hydraulic Lines Installation Oil Cooler (Superstructure) Hydraulic Lines Installation Steering (Superstructure) Hydraulic Lines Installation Lift (Superstructure) Hydraulic Lines Installation Lift (Superstructure) Hydraulic Lines Installation Hoist (Superstructure) Hydraulic Lines Installation Hoist Control (Superstructure) Hydraulic Lines Installation Swing (Superstructure) Hydraulic Lines Installation Swing Brake (Superstructure) Hydraulic Lines Installation Telescope (Superstructure) Hydraulic Lines Installation Telescope, Clamshell, Grapple, Pile Driver (Superstructure) Hydraulic Lines Installation Joystick Valves (Superstructure) Hydraulic Lines Installation Pressure Check Panel (Superstructure) Hydraulic Lines Installation Clamshell, Grapple, Pile Driver (Superstructure)

11 Section/Figure Title TABLE OF CONTENTS (Continued) TM P Page Group 24 Hydraulic System (Cont d) Lift Cylinder and Lower Shaft Installation Cylinder Installation Telescope, 5-1/ Reservoir and Sampling Valve Installation Hydraulic Reservoir Assembly Filter Assembly Return Group 52 Air Conditioner Components Air Conditioner Installation and Assembly (Carrier Cab) Air Conditioner Installation (Superstructure Cab) Compressor and Motor Assembly Air Conditioner (Superstructure Cab) Compressor Assembly Air Conditioner (Superstructure Cab) Condenser Assembly Air Conditioner (Superstructure Cab) Control Box Assembly Air Conditioner (Superstructure Cab) Harness Assembly Air Conditioner Control Box (Superstructure Cab) Evaporator Installation and Assembly Air Conditioner (Superstructure Cab) Compressor Installation Air Conditioner (Engine) Group 68 Warning, Scanning, and Signaling Devices Load Moment Indicator (LMI) System Installation Display Console Assembly Low Temp Central Unit Assembly Low Temp, DS350G/ Central Unit Assembly Low Temp, DS350G/2767 (Accucal Upgrade) Cable Reel Assembly Junction Box Assembly Boom Nose Junction Box Assembly Boom Cable Assembly - Load Moment Indicator (LMI) Anti-Two Block (A2B) System Installation Weight & Chain Assembly Anti-Two Block (A2B) Switch Anti-Two Block (A2B) Switch Retrofit Kit Assembly (Add-on) Junction Box Assembly Anti-Two Block (A2B) Switch Retrofit Kit Group 74 Cranes, Shovels, and Earth Moving Equipment Components Boom Assembly Three Section Sheave Assembly Upper Shaft and Boom Pivot Shaft Installation Hose Reel and Tagline Installation Reel Assembly Hose and Retainer Assembly Chain Boom Rest Installation Hookblock Assembly Headache Ball and Wire Rope Installation Hookblock Tie-Down Installation Clamshell Installation and Assembly (Eurotech) Clamshell Installation (Pro-Line/Anvil) Bucket Assembly Clamshell (Pro-Line/Anvil) Grapple Installation and Assembly (Eurotech) Grapple Installation (Pro-Line/Anvil) Grapple Assembly (Pro-Line/Anvil) Boom Nose Adapter Plates Installation Hoist Installation Hoist Assembly (H015C 16G) Motor Assembly Hoist, Hydraulic Vane Type vii

12 Section/Figure Title TABLE OF CONTENTS (Continued) Page Group 74 Cranes, Shovels, and Earth Moving Equipment Components (Cont d) Brake Assembly Hoist Gear Reduction Assembly - Hoist Turntable, Drive and Bearing Bolt Installation and Drive Assembly - Swing Gear Reducer Assembly Swing Drive Swing Lock Installation and Assembly Swivel Installation and Assembly Electric/Air/Hydraulic Swivel Assembly 14 Port Hydraulic and Air and Slip Ring Assembly 49 Conductor Swing Lock Pin Installation Air Lines Installation Turntable Group 76 Fire Fighting Equipment Components Extinguisher Installation Fire Appendix A Winterization Kit Coolant Heater System Installation... A-1 Fittings and Doubler Plate Installation Hydraulic Reservoir... A-2 Heater Element Installation Hydraulic Reservoir... A-3 Coolant Hoses Installation... A-4 Coolant Heater Assembly... A-5 Appendix B Pile Driving System Pile Driver System Installation... B-1 Lead Tower Assembly... B-2 Lead Head Adapter Assembly... B-3 Foot Roller and Rough-Terrain Dolly Wheels Assembly... B-4 Pile Gate Assembly... B-5 Spotter Assembly.... B-6 Lower Cylinder Assembly... B-7 Upper Cylinder Assembly... B-8 Piston and Impact Block Assembly... B-9 Direct Drive Assembly... B-10 Fuel System Assembly... B-11 Lubricating Oil System Assembly... B-12 Drip Tank Installation and Assembly Waste Fuel... B-13 Hammer Trip Assembly... B-14 Blow Count Recorder Installation and Assembly... B-15 Remote Throttle Assembly... B-16 Labels and Data Plate Installation Impact Hammer... B-17 Tool Box No. 1 Assembly... B-18 Tool Box No. 2 Assembly... B-19 Repair and Service Kits Repair and Service Kits.... KITS SECTION III SPECIAL TOOLS LIST.... NA SECTION IV NATIONAL STOCK NUMBER AND PART NUMBER INDEX... I-1 National Stock Number Index.... I-1 Part Number Index... I-63 viii

13 FIELD AND SUSTAINMENT MAINTENANCE ALL-TERRAIN CRANE (ATEC) AT-422T DIESEL ENGINE DRIVEN, 22 TON CAPACITY TRUCK MOUNTED WITH CAB NSN SECTION I. INTRODUCTION 1. SCOPE. This RPSTL lists and authorizes spares and repair parts; special tools; special test, measurement, and diagnostic equipment (TMDE); and other special support equipment required for performance of field and sustainment maintenance of the ATEC. It authorizes the requisitioning, issue, and disposition of spares, repair parts, and special tools as indicated by the source, maintenance and recoverability (SMR) codes. 2. GENERAL. In addition to Section I, Introduction, this Repair Parts and Special Tools List is divided into the following sections: a. Section II. Repair Parts List. A list of spares and repair parts authorized by this RPSTL for use in the performance of maintenance. The list also includes parts which must be removed for replacement of the authorized parts. Parts lists are composed of functional groups in ascending figure and item number sequence. Bulk materials are listed in item name sequence. Repair parts kits are listed separately in their own functional group within Section II. Repair parts for repairable special tools are also listed in this section. Items listed are shown on the associated illustration(s)/figure(s). b. Section III. Special Tools List. Not Applicable to This RPSTL. c. Section IV. National Stock Number and Part Number Index. A list, in National Item Identification Number (NIIN) sequence, of all national stock numbered items appearing in the listing, followed by a list in alphanumeric sequence of all part numbers appearing in the listings. National stock numbers and part numbers are cross-referenced to each illustration figure and item number appearance. 3. EXPLANATION OF COLUMNS (SECTIONS II AND III). a. ITEM NO, (Column (1)). Indicates the number used to identify items called out in the illustration. b. SMR CODE (Column (2)). The Source, Maintenance, and Recoverability (SMR) code is a 5- position code containing supply/requisitioning information, maintenance category authorization criteria, and disposition instruction, as shown in the following breakout: 1

14 Source Maintenance Recoverability Code Code Code 1 st two XX positions XX X How you get an item. 3 rd position 4 th position Who determined disposition Who can install, Who can do action on an replace or use complete unserviceable the item. repair* of item. the item. *Complete Repair: Maintenance capacity, capability, and authority to perform all corrective maintenance tasks of the "Repair" function in a use/user environment in order to restore serviceability to a failed item. (1) Source Code. The source code tells you how to get an item needed for maintenance, repair, or overhaul of an end item/equipment. An explanation of source codes follows: Code Explanation PA PB PC ** PD > PE PF Stocked items; use the applicable NSN to request/ requisition items with these source codes. They are authorized to the category indicated by the code entered in the 3rd position of the SMR code. **NOTE: Items coded PC are subject to deterioration. PG Code KD KF KB Explanation Items with these codes are not to be requested/ requisitioned individually. They are part of a kit which is authorized to the maintenance category indicated in the 3rd position of the SMR code. The complete kit must be requisitioned and applied. 2

15 Code MO- (Made at org/ AVUM Level) MF- (Made at DS/ AVIM Level) MH- (Made at GS Level) ML- (Made at Specialized Repair Activity (SRA) MD- (Made at Depot) Code AO- (Assembled by org/ AVUM Level) AF- (Assembled by DS/AVIM Level) AH- (Assembled by GS Category) AL- (Assembled by SRA) AD-(Assembled by Depot) Explanation Items with these codes are not to be requested/requisitioned individually. They must be made from bulk material which is identified by the part number in the DESCRIPTION AND USABLE ON CODE (UOC) column and listed in the Bulk Material group of the repair parts list in this RPSTL. If the item is authorized to you by the 3rd position code of the SMR code, but the source code indicates it is made at a higher level, order the item from the higher level of maintenance. Explanation Items with these codes are not to be requested/requisitioned individually. The parts that make up the assembled item must be requisitioned or fabricated and assembled at the level of maintenance indicated by the source code. If the 3rd position code of the SMR code authorizes you to replace the item, but the source code indicates the item is assembled at a higher level, order the item from the higher level of maintenance. XA - XB - XC - XD - Do not requisition an "XA"-coded item. Order its next higher assembly. (Also, refer to the NOTE below.) If an "XB" item is not available from salvage, order it using the FSCM and part number given. Installation drawing, diagram, instruction sheet, field service drawing that is identified by manufacturer's part number. Do not requisition. Item is not stocked. Order an "XD"-coded item through normal supply channels using the CAGE and part number given, if no NSN is available. NOTE Cannibalization or controlled exchange, when authorized, may be used as a source of supply for items with the above source codes, except for those source coded "XA" or those aircraft support items restricted by requirements of AR (2) Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to USE and REPAIR support items. The maintenance codes are entered in the 3rd and 4th positions of the SMR Code as follows: 3

16 (a) The maintenance code entered in the 3rd position tells you the lowest maintenance level authorized to remove, replace, and use an item. The maintenance code entered in the 3rd position will indicate authorization to one of the following levels of maintenance. Code Application/Explanation Field Support: C - Crew or operator maintenance done within organization or aviation unit maintenance. O - Organizational or aviation unit category can remove, replace, and use the item. F - Direct support or aviation intermediate level can remove, replace, and use the item. Sustainment: H - General support level can remove, replace, and use the item. L - Specialized repair activity can remove, replace, and use the item. D - Depot level can remove, replace, and use the item. (b) The maintenance code entered in the 4th position tells whether or not the item is to be repaired and identifies the lowest maintenance level with the capability to do complete repair (i.e., perform all authorized repair functions.) (Some limited repair may be done on the item at a lower level of maintenance, if authorized by the Maintenance Allocation Chart (MAC) and SMR Codes.) This position will contain one of the following maintenance codes. Code Application/Explanation O - F - H - L - D - Z - B - Organizational or (aviation unit) is the lowest level that can do complete repair of the item. Direct support or aviation intermediate is the lowest level that can do complete repair of the item. General support is the lowest level that can do complete repair of the item. Specialized repair activity (designate the specialized repair activity) is the lowest level that can do complete repair of the item. Depot is the lowest level that can do complete repair of the item. Nonrepairable. No repair is authorized. No repair is authorized. (No parts or special tools are authorized for the maintenance of a "B" coded item). However, the item may be reconditioned by adjusting, lubricating, etc., at the user level. (3) Recoverability Code. Recoverability codes are assigned to items to indicate the disposition action on unserviceable items. The recoverability code is entered in the 5th position of the SMR Code as follows: Recoverability Codes Z - O - F - H - D - Application/Explanation Nonrepairable item. When unserviceable, condemn and dispose of the item at the level of maintenance shown in 3rd position of SMR Code. Repairable item. When uneconomically repairable, condemn and dispose of the item at organizational or aviation unit level. Repairable item. When uneconomically repairable, condemn and dispose of the item at the direct support or aviation intermediate level. Repairable item. When uneconomically repairable, condemn and dispose of the item at the general support level. Repairable item. When beyond lower level repair capability, return to depot. Condemnation and disposal of item not authorized below depot level. 4

17 L - Repairable item. Condemnation and disposal not authorized below specialized repair activity (SRA). A - Item requires special handling or condemnation procedures because of specific reasons (e.g., precious metal content, high dollar value, critical material, or hazardous material). Refer to appropriate manuals/directives for specific instructions. c. NSN (Column (3)). The NSN for the item is listed in this column. d. CAGE (Column (4)). The Contractor and Government Entity Code for Manufacturer (CAGE) is a 5-digit numeric code which is used to identify the manufacturer, distributor, or Government agency, etc., that supplies the item. e. PART NUMBER (Column (5)). Indicates the primary number used by the manufacturer (individual, company, firm, corporation, or Government activity), which controls the design and characteristics of the item by means of its engineering drawings, specifications standards, and inspection requirements to identify an item or range of items. NOTE When you use a NSN to requisition an item, the item you receive may have a different part number from the part ordered. f. DESCRIPTION AND USABLE ON CODE (UOC) (Column (6)). This column includes the following information: (1) The Federal item name and, when required, a minimum description to identify the item. (2) Items that are included in kits and sets are listed below the name of the kit or set. (3) Spare/repair parts that make up an assembled item are listed immediately following the assembled item line entry. (4) Part numbers for bulk materials are referenced in this column in the line item entry for the item to be manufactured/fabricated. (5) When the item is not used with all serial numbers of the same model, the effective serial numbers are shown on the last line(s) of the description (before UOC). (6) The UOC, when applicable (see paragraph 5, Special Information). (7) In the Special Tools List section, the Basis of Issue (BOI) appears as the last line(s) in the entry for each special tool, special TMDE, and other special support equipment. When density of equipment supported exceeds density spread indicated in the BOI, the total authorization is increased proportionately. (8) The statement "END OF FIGURE" appears just below the last item description in Column 6 for a given figure in Section II. g. QTY (Column (7)). The QTY (quantity per figure column) indicates the quantity of the item used in the breakout shown on the illustration figure, which is prepared for a functional group, subfunctional group, or an assembly. A "V" appearing in this column in lieu of a quantity may vary from application to application. 4. EXPLANATION OF COLUMNS (SECTION IV). a. NATIONAL STOCK NUMBER (NSN) INDEX. (1) STOCK NUMBER Column. This column lists the NSN by National Item Identification Number (NIIN) sequence. The NIIN consists of the last nine digits of the NSN. 5

18 NSN (i.e., ) NIIN When using this column to locate an item, ignore the first 4 digits of the NSN. However, the complete NSN should be used when ordering items by stock number. (2) FIG. Column. This column lists the number of the figure where the item is identified/located. The figures are in numerical order in Section II and Section III. (3) ITEM Column. The item number identifies the item associated with the figure listed in the adjacent FIG. Column. This item is also identified by the NSN listed on the same line. b. PART NUMBER INDEX. Part numbers in this index are listed by part number in ascending alphanumeric sequence (i.e., vertical arrangement of letter and number combination which places the first letter or digit of each group in order A through Z, followed by numbers 0 through 9 and each following letter or digit in like order). (1) PART NUMBER Column. Indicates the primary number used by the manufacturer (individual, firm, corporation, or Government activity), which controls the design and characteristics of the item by means of its engineering drawings, specifications standards, and inspection requirements to identify an item or range of items. (2) FIG. Column. This column lists the number of the figure where the item is identified/located in Section II and III. (3) ITEM Column. The item number is that number assigned to the item as it appears in the figure referenced in the adjacent figure number column. 5. SPECIAL INFORMATION. Use the following subparagraphs as applicable: a. USABLE ON CODE. The usable on code appears in the lower left corner of the Description column heading. Usable on codes are shown as "UOC:... applicable item description/ nomenclature. Uncoded items are applicable to all models. Identification of the usable on codes used in the RPSTL are: Code JEJ Used On ATEC AT422T b. ASSEMBLY INSTRUCTION. Detailed assembly instructions for items source coded to be assembled from component spare/repair parts are found in TM Items that make up the assembly are listed immediately following the assembly item entry or reference is made to an applicable figure. c. KITS. Line item entries for repair parts kits appear throughout Section II. 6

19 d. ASSOCIATED PUBLICATIONS. The publication(s) listed below pertain to ATEC Model AT422T and its components: Publication Short Title TM Maintenance Manual, Volume 1 TM Maintenance Manual, Volume 2 (Service Maintenance Packages) TM Diesel Engine Maintenance Manual, Volume 1 TM Diesel Engine Maintenance Manual, Volume 2 6. HOW TO LOCATE REPAIR PARTS. a. When National Stock Number or Part Number is Not Known. (1) First. Using the Table of Contents, determine the assembly group or subassembly group to which the item belongs. This is necessary since figures are prepared for assembly groups and subassembly groups, and listings are divided into the same groups. (2) Second. Find the figure covering the assembly group or subassembly group to which the item belongs. (3) Third. Identify the item on the figure and note the item number. (4) Fourth. Refer to the Repair Parts List for the figure to find the part number for the item number noted on the figure. (5) Fifth. Refer to the Part Number Index to find the NSN, if assigned. b. When National Stock Number or Part Number is Known. (1) First. Using the Index of National Stock Numbers and Part Numbers, find the pertinent National Stock Number or Part Number. The NSN index is in National Item Identification Number (NIIN) sequence (see 4.a(1)). The part numbers in the Part Number Index are listed in ascending alphanumeric sequence (see 4.b). Both indexes cross-reference you to the illustration figure and item number of the item you are looking for. (2) Second. After finding the figure and item number, verify that the item is the one you are looking for, then locate the item number in the repair parts list for the figure. 7. ABBREVIATIONS. Abbreviations A2B A/C ACC AR ASSY AUX AVIM AVUM BOI B/U CAGE CIRC COMP COND Explanation Anti-Two Block Air Conditioning Accessory As Required Assembly Auxiliary Aviation Intermediate Maintenance Aviation Unit Maintenance Basis of Issue Backup Contractor and Government Entity Circulation Compressor Conditioner 7

20 7. ABBREVIATIONS - CONTD. Abbreviations CONT DIFF DS EXT FIG FRT FT GS HYD ID IN IND LB(S) LH LMI LT(S) MAC MFD MM NA NIIN NPT NSN O/R OS OCSILL PN P/O PSI QTY REF RET REV RH RPSTL SMR SOL SRA S/S SUSP SW TACH TELE TEMP TMDE TRANS TYP UOC Explanation Control Differential Direct Support Extend Figure Front Foot, Feet General Support Hydraulic Identification Inch, Inches Indicator Pound(s) Left Hand Load Moment Indicator Light(s) Maintenance Allocation Chart Manufactured Millimeter Not Applicable National Item Identification Number (consists of the last 9-digits of the NSN) National Pipe Thread National Stock Number Outrigger Oversize Oscillator Part Number Part Of (an assembly) Pounds per Square Inch Quantity Reference Retract Reverse Right Hand Repair Parts and Special Tools List Source Maintenance and Recoverability Codes Solenoid Special Repair Activity Superstructure Suspension Switch Tachometer Telescope Temperature Test, Measurement and Diagnostic Equipment Transmission, Transfer Typical Usable on Code 8