OPERATOR S MANUAL HWH COMPUTER-CONTROLLED LEVELING SYSTEM 600 SERIES FEATURING: TOUCH PANEL CONTROL FOUR POINT AIR LEVELING WITH TAG AXLE

Transcription

1 HCORPORATIONH W R OPERATOR S MANUAL HWH COMPUTER-CONTROLLED LEVELING SYSTEM 600 SERIES FEATURING: TOUCH PANEL CONTROL FOUR POINT LEVELING WITH TAG AXLE HWH COMPUTERIZED LEVELING LEVEL EXCESS SLOPE DUMP NOT IN PARK/ BRAKE OFF TRAVEL CAUTION! UNDERSTAND OPERATOR S MANUAL BEFORE USING. BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE. HWH CORPORATION (ON I-80, EXIT 267 SOUTH) 2096 MOSCOW ROAD MOSCOW, IOWA 2760 (800) / (63) INTERNET: http: // ML13984/MP MAR01

2 OPERATOR S MANUAL HWH LEVELING SYSTEM LEVELING ONLY CAUTION! READ THE ENTIRE OPERATOR MANUAL BEFORE OPERATING. BLOCK FRAME AND TIRES SECURELY BEFORE CRAWLING UNDER VEHICLE. DO NOT USE LEVELING JACKS OR SUSPENSION TO SUPPORT VEHICLE WHILE UNDER VEHICLE OR CHANGING TIRES. VEHICLE MAY DROP AND/OR MOVE FORWARD OR BACKWARD WITHOUT WARNING CAUSING INJURY OR DEATH. KEEP ALL PEOPLE CLEAR OF VEHICLE WHILE LEVELING SYSTEM AND ROOM EXTENSION ARE BEING OPERATED. DO NOT OPERATE LEVELING SYSTEM OR USE THE OR DUMP BUTTONS WHEN TRAVELING AT SPEEDS IN EXCESS OF MPH. WEAR SAFETY GLASSES WHEN INSPECTING OR SERVICING THE SYSTEM TO PROTECT EYES FROM DIRT, METAL CHIPS, OIL LEAKS, ETC. FOLLOW ALL OTHER APPLICABLE SHOP SAFETY PRACTICES. IMPORTANT: IF COACH IS EQUIPPED WITH A ROOM EXTENSION, READ ROOM EXTENSION SECTION BEFORE OPERATING LEVELING SYSTEM. HOW TO OBTAIN WARRANTY SERVICE THIS IS NOT TO BE INTERPRETED AS A STATEMENT OF WARRANTY HWH CORPORATION strives to maintain the highest level of customer satisfaction. Therefore, if you discover a defect or problem, please do the following: FIRST: Notify the dealership where you purchased the vehicle or had the leveling system installed. Dealership management people are in the best position to resolve the problem quickly. If the dealer has difficulty solving the problem, he should immediately contact the Customer Service Department, at HWH CORPORATION. SECOND: If your dealer cannot or will not solve the problem, notify the Customer Service Department: HWH CORPORATION 2096 Moscow Rd. Moscow IA (63) OR (800) Give your name and address, coach manufacturer and model year, date the coach was purchased, or the date of system installation, authorization of an independent service facility, to be defective part, either by appointment at the factory or by the CORPORATION will authorize repair or replacement of the determine whether or not your claim is valid. If it is, HWH HWH CORPORATION personnel will contact you to during business hours (8:00 a.m. till :00 p.m. c.s.t.). description of the problem, and where you can be reached determined by HWH CORPORATION. All warranty repairs must be performed by an independent service facility authorized by HWH CORPORATION, or at the HWH CORPORATION factory, unless prior written approval has been obtained from proper HWH CORPORATION personnel. MP1.1 30MAY01

3 CONTROL IDENTIFICATION "NOT IN PARK" LIGHT "EXCESS SLOPE" LIGHT LEVEL LIGHT "LEVEL" BUTTON DUMP LIGHT "DUMP" BUTTON LIGHT "OFF" BUTTON "" BUTTON "TRAVEL" LIGHT LEVEL DUMP HWH COMPUTERIZED LEVELING EXCESS SLOPE NOT IN PARK/ BRAKE TRAVEL OFF CAUTION! UNDERSTAND OPERATOR S MANUAL BEFORE USING. BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE. FRONT BUTTON FRONT BUTTON WARNING LIGHT (4 - Red) RIGHT SIDE BUTTON RIGHT SIDE BUTTON LEVELING LIGHTS (4 - Yellow) REAR BUTTON REAR BUTTON LEFT SIDE BUTTON LEFT SIDE BUTTON CONTROL BUTTONS CONTROL FUNCTIONS INDICATOR LIGHTS "LEVEL" BUTTON: This button is the system on button and automatic operation button. "OFF" BUTTON: This button will turn the system OFF but does NOT control power to the "DUMP" or "" buttons. "DUMP" BUTTON: This button will lower the whole vehicle by exhausting air from the suspension system. "" BUTTON: This button will raise the whole vehicle by adding air to the suspension system. UP ARROWS ( BUTTONS): These momentary buttons are used for manually operating the air leveling systems. Sides or ends of the vehicle will raise while these buttons are pushed. DOWN ARROWS ( BUTTONS): These momentary buttons are used to manually operate the air leveling systems. Sides or ends of the vehicle will lower while these buttons are pushed. LEVEL LIGHT: This light will be on when the system is on, and flash during automatic leveling. DUMP LIGHT: This light will flash when the "DUMP" button is being pushed. LIGHT: This light will flash when the "" button is being pushed. "EXCESS SLOPE" LIGHT: This light will be on if the leveling system can NOT level the coach. "TRAVEL" LIGHT: This light will be on if the leveling system is off and the ignition is in the "ON" or "ACC" position. See "PREPARATION FOR TRAVEL". WARNING LIGHTS: These lights will function only with the ignition key is in the "ON" or "ACC" position. They will be on if the system is on. LEVELING LIGHTS: One or two yellow lights can be on indicating the side, end or corner of the coach is low. "NOT IN PARK/BRAKE" LIGHT: This light will be on if the "" button is pushed and the park brake is not set if the ignition switch is in the "ON" position. MP AUG96

4 OPERATING PROCEDURES GENERAL INSTRUCTIONS Press the "OFF" button at any time to stop the operation of the system. will not operate when the "" button is pressed. The "NOT IN PARK" light will remain on only while the "" button is pressed. NOTE: If the ignition switch is "ON", the vehicle s air suspension may return to travel height. IMPORTANT: The bypass valves must be closed (turned clockwise) for the air leveling system to function. If the ignition is in the "ON" position and the hand/auto brake is not set, the "NOT IN PARK" light will come on and the system Start the vehicle s engine and allow air pressure to build to the recommended level for traveling. Before traveling, the red warning lights must be off and the "TRAVEL" light must be on. If the vehicle will not return to the proper ride height for traveling, see the BYPASS VALVE SECTION. PREPARATION FOR TRAVEL CAUTION: OPERATION AUTOMATIC LEVELING The "DUMP" and "" buttons will function with the system and park brake off if the ignition is "ON". See " DUMP AND FUNCTIONS". CAUTION: DO NOT MOVE THE COACH WHEN THE WARNING LIGHTS ARE ON. DO NOT RELY SOLELY ON WARNING INDICATORS. IT IS THE OPERATOR S RESPONSIBILITY TO CHECK THAT THE VEHICLE IS AT THE PROPER RIDE HEIGHT BEFORE MOVING THE VEHICLE. 1. Set the hand/auto brake in the recommended position for parking. Leave the engine running to provide air for leveling. NOTE: If the ignition key is not in the "ON" position, the leveling system cannot be turned on. Once the system is on, the ignition key may be turned off. 2. Press the "" button once to enter the air mode. The indicator light and the four warning lights will glow steady. 3. Press the "" button a second time. The indicator light will start flashing and the air leveling will begin. 4. When all four yellow LEVEL SENSING lights are out the leveling is complete. The indicator light will stop flashing and turn steady red. The processor is now in a SLEEP MODE for 30 minutes. The vehicle s engine may now be turned off. After 30 minutes the processor will recheck the vehicle level, make any corrections required, and return to the SLEEP MODE. This will continue until the system is turned off by pushing the "OFF" button or the transmission is taken out of the parking position and the park brake is released. EXCESS SLOPE If the system was unable to level the vehicle, one or two yellow LEVEL SENSING indicator lights will remain on and the "EXCESS SLOPE" light will come on. The system will remain on but will not go into SLEEP MODE. MANUAL LEVELING 1. Place the hand/auto brake in the recommended position for parking. The engine should be running to provide air for leveling. 2. Press the "" button. The "" indicator light will glow steady. 3. Individual and buttons (UP and DOWN ARROWS) will add or dump air from suspension air bags to raise or lower coach for leveling. These are momentary buttons. The function will stop when the button is released. NOTE: The "" and "DUMP" buttons can be used at this time, but the system will shut off after the button is released. The yellow LEVEL lights indicate a side, end, or corner of the coach is low. Lower the opposite side or end of the coach to achieve leveling. If a level position cannot be achieved by dumping air, raise the coach according to lit yellow "LEVEL" lights. IMPORTANT: Always give preference to any side light before leveling the coach front to rear. 4. Turn ignition switch "OFF". Turn the system off. MP SEP97

5 OPERATING PROCEDURES DUMP AND FUNCTIONS The "DUMP" and "" functions are provided for operator convenience for purposes such as dumping air suspension when parked in the wind, or raising or lowering the vehicle to avoid obstacles. The "DUMP" and "" buttons will function with the system on or off. IMPORTANT:"DUMP" and "" functions will automatically turn off when the button is released. If the ignition is in the "ON" position the suspension will return to travel height. CAUTION: REREAD CAUTIONS ON THE FIRST PAGE OF THIS MANUAL. THE VEHICLE MAY DROP OR AND/OR MOVE FORWARD OR BACKWARD WITHOUT WARNING CAUSING INJURY OR DEATH. DO NOT OPERATE THE VEHICLE OVER M.P.H. UNLESS SUSPENSION IS AT THE PROPER HEIGHT FOR TRAVEL. 1. Leave the engine running if the "" function is to be used. The park brake does not have to be set and the system does not have to be on to use the "" or "DUMP" functions. 2. Press and hold the "" or "DUMP" button as desired to raise or lower the vehicle. The system will remain in the "" or "DUMP" mode as long as the button is held down. When the button is released the system will automatically turn turn off. If the ignition is in the "ON" position the suspension will return to travel height. 3. If desired for clearing an obstacle, the vehicle may be moved while in the "" or "DUMP" mode for a short distance at a slow speed. Remember the vehicle will return to travel height when the "" or "DUMP" button is released and the leveling system is off. BYPASS VALVE OPERATION (FOR TEMPORARY BYPASS OF LEVELING SYSTEM) In case of a malfunction of the leveling system, opening these valves will in most cases allow the vehicle suspension to return to the proper ride height for traveling. CAUTION: THE VEHICLE WILL OR AS THE VALVES ARE OPENED. DO NOT CRAWL UNDER THE VEHICLE TO ACCESS THE VALVES. MAKE SURE THERE IS AMPLE ROOM TO OPEN THE VALVES SAFELY. 1. Locate the BYPASS valve T-handles. Refer to the SOL- ENOID MANIFOLD page in the Diagram Section. There is usually one Air Solenoid Manifold for each axle on the vehicle. 2. Turn each T-handle counter-clockwise approximately two turns. Make sure there is ample clearance when opening the valves. Leave the valves open until the leveling system is repaired. 3. Check that the vehicle has returned to the proper ride height before moving the vehicle. NOTE: The leveling system will not function properly if a bypass valve is opened. Call HWH Customer Service, , Monday through Friday, 8:00 a.m. to :00 p.m. Central time, for technical assistance. OPERATIONAL CHECK Review the operator s manual and check that all functions and lights work correctly. "NOT IN PARK/BRAKE" Check: Set hand/auto park brake. Set the transmission in the recommended position for parking the vehicle. Turn the ignition on. Push the "" button on the touch panel. Release the hand/auto park brake. CAUTION: THE VEHICLE MAY MOVE FORWARD OR BACKWARD WHEN THE PARK IS RELEASED. Check that the "NOT IN PARK/BRAKE" light comes ON. Reapply the park brake. The "NOT IN PARK/BRAKE" light should go out. NOTE: If any checks reveal any problems or if there are other problems or questions, consult a qualified rv repair center, your vehicle or coach manufacturer or HWH Corporation for service or assistance. MP JUL97

6 OPERATING PROCEDURES LEVEL SENSING UNIT ADJUSTMENT Level the vehicle by placing a circular bubble level in the center of the freezer floor or location within the vehicle that is to be level. With the vehicle level, adjust the sensing unit until all yellow lights are off. This is done by drawing up the corresponding screw if the sensing unit is mounted below the surface, as shown, or backing out the corresponding screw if the sensing unit is mounted above the surface. Bump the sensing unit to see that it has settled down in the level position. REAR THIS SIDE UP STICKER ON TOP SCREWS (3) MOUNTING SURFACE SPRINGS (3) LEVEL SENSING UNIT BELOW THE SURFACE MOUNTING TAG AXLE DUMP The tag axle dump-switch is supplied by Monaco. IMPORTANT: Refer to Monaco for the proper use of the Tag Dump feature. NOTE: If the Tag Dump switch is in the dump position and the ignition key is turned on (with the leveling system panel off) the tag axle air bags will go into the dump mode. The Tag Dump switch will work only with the ignition switch in the "ON" position and the leveling system panel off. MP SEP97

7 LINE CONNECTION DIAGRAM FOUR POINT LEVELING WITH TAG AXLE - MONACO FRONT SUSPENSION H C V 1/4" LINE HEIGHT CONTROL VALVE (3-PLACES) 1/4" LINE LINE FROM HEIGHT CONTROL VALVE 1/4" LINE BY-PASS 1/4" LINE AUX. 12V COMPRESSOR 3/8" LINE 3/8" LINE SUPPLY 3/8" LINE REGULATOR FRONT BY-PASS REAR MANIFOLD ASSEMBLY BY-PASS FRONT TANK BACK DRIVE SUSPENSION 1/4" LINE 1/4" LINE LINES TO S 3/8" LINE 3/8" LINE TAG MANIFOLD ASSEMBLY H C V 1/4" LINE H CV 3/8" LINE 3/8" LINE BY-PASS CANISTER 3/8" LINE 3/8" LINE REGULATOR PRESSURE REGULATOR REAR TANK TO SUPPLY MP APR99

8 LEVEL SCHEMATIC - MONACO 4-POINT LEVELING WITH COMPRESSOR PRESSURE SWITCHES FRONT AND REAR DRIVE AXLE SEE COMPRESSOR DIAGRAM FRONT HEIGHT CONTROL VALVE (HCV) EXISTING SUPPLY REGULATOR FRONT MANIFOLD ASSEMBLY FRONT TANK TRAV. TRAV. FRONT FRONT REAR MANIFOLD ASSEMBLY LR HCV TRAV. TRAV. RR HCV REGULATOR DRIVER PRESSURE SWITCH REAR TANK TAG MANIFOLD ASSEMBLY PRESSURE REGULATOR TRAV. TRAV. BY-PASS VALVE BY-PASS VALVE TAG AXLE SUPPLY TAG TAG MP SEP97

9 SOLENOID MANIFOLD 6 VALVE WITH TWO PRESSURE SWITCHES AND BY-PASS VALVES 3.400" LINE FROM HEIGHT CONTROL VALVE LINE TO S BY-PASS VALVE PRESSURE SWITCH LINE TO S PRESS SW TRAVEL SUPPLY CHECK VALVE REAR VIEW PRESS SW TRAVEL MOUNTING HOLES LINE FROM HEIGHT CONTROL VALVE (2 MAY BE TEE D TOGETHER IF ONE HCV IS USED) LINE TO S (2-LEFT & RIGHT) BYPASS VALVE (2-LEFT & RIGHT) PRESSURE SWITCH (2) TRAVEL SOLENOID VALVE (2) RIGHT & LEFT SOLENOID VALVE (2) RIGHT& LEFT AUSTS PORT (2) LINE TO S (2-LEFT & RIGHT) SOLENOID VALVE (2) RIGHT & LEFT SUPPLY (1) CHECK VALVE (2) SIDE VIEW MP SEP97

10 SOLENOID MANIFOLD 6 VALVE WITH ONE PRESSURE SWITCH AND BY-PASS VALVES 3.400" LINE FROM HEIGHT CONTROL VALVE LINE TO S LINE TO S SUPPLY CHECK VALVE REAR VIEW MOUNTING HOLES LINE FROM HEIGHT CONTROL VALVE (2 MAY BE TEE D TOGETHER IF ONE HCV IS USED) LINE TO S (2-LEFT & RIGHT) BYPASS VALVE (2-LEFT & RIGHT) AUSTS PORT (2) LINE TO S (2-LEFT & RIGHT) SUPPLY (1) TRAVEL SOLENOID VALVE (2) RIGHT & LEFT SOLENOID VALVE (2) RIGHT& LEFT SOLENOID VALVE (2) RIGHT & LEFT CHECK VALVE (2) SIDE VIEW PRESSURE SWITCH MP SEP97

11 SOLENOID MANIFOLD 6 VALVE WITH BY-PASS VALVES 3.400" LINE FROM HEIGHT CONTROL VALVE BY-PASS VALVE PRESSURE SWITCH LINE TO S TRAVEL SUPPLY CHECK VALVE REAR VIEW TRAVEL MOUNTING HOLES LINE FROM HEIGHT CONTROL VALVE (2 MAY BE TEE D TOGETHER IF ONE HCV IS USED) TRAVEL SOLENOID VALVE (2) RIGHT & LEFT BYPASS VALVE (2-LEFT & RIGHT) SOLENOID VALVE (2) RIGHT& LEFT AUSTS PORT (2) LINE TO S (2-LEFT & RIGHT) SUPPLY (1) SOLENOID VALVE (2) RIGHT & LEFT CHECK VALVE (2) SIDE VIEW MP SEP97

12 COMPRESSOR DIAGRAM FUSE 1 AMP FROM SOLENOID 12 VOLT RELAY (2) +12 SIGNAL FROM PRESSURE SWITCH TO +12 BATTERY POWER GROUND CHECK VALVE (4) FLOW LINE TO SUSPENSION PRESSURE SWITCH (1) NORMALLY CLOSED (OPEN AT 11 PSI) (CLOSED AT 10 PSI) FILTER NORMALLY OPEN SOLENOID (3) GROUND TO RELAY MOUNTING BOLT COMPRESSOR HARNESS FROM CONTROL BOX The control box sends a +12 signal to the normally closed pressure switch (1). If the pressure is low, the 12 volt relay (2) will energize and the compressor will run. The normally open air solenoid (3) will close allowing the compressor to build pressure. When the pressure builds to 11 psi the procure switch will open, stopping the air compressor. The normally open air solenoid (3) will open, allowing internal pressure & moisture to bleed off. The check valve (4) will keep the suspension air from bleeding back to the compressor. As air pressure drops below 10 psi the compressor will start. MP7.9 14FEB02

13 600 SERIES LEVELING SYSTEM CONTROL BOX CONNECTION DIAGRAM 4-POINT LEVELING WITH TAG DUMP MASTER WARNING INDICATOR OUTPUT (+12) FROM POWER HARNESS - (PURPLE) 7699 WHITE-(GROUND) YELLOW-LEFT SIDE BLACK-FRONT GREEN-RIGHT SIDE RED-REAR LEVEL SENSING UNIT INPUTS MODULAR CABLE FROM TOUCH PANEL FRONT HARNESS PARK BRAKE POWER HARNESS DRIVE AND TAG HARNESS COMPRESSOR PARK BRAKE SENSOR FROM POWER HARNESS - (BLUE) 9000 LEFT FRONT - (GREEN) 100 LEFT FRONT - (RED) 1600 FRONT TRAVEL - (GRAY) 1700 RIGHT FRONT - (BLUE) 2600 RIGHT FRONT - (YELLOW) 200 BATTERY - (RED) 6100 IGNITION - (YELLOW) 6110 ACC. - (BROWN) 6120 COMPRESSOR HARNESS - (BLACK) 9700 LEFT REAR - (GREEN) 400 LEFT REAR - (PURPLE) 4600 REAR PRESS. SW. - (YELLOW) 321 REAR TRAVEL SOLENOID - (GRAY) 3700 RIGHT REAR - (BROWN) 3600 RIGHT REAR - (ORANGE) 300 PRESSURE SWITCH INPUTS FROM FRONT HARNESS RF PRESS. SW. - (ORANGE) 2210 TAG DUMP SWITCH HARNESS TAG DUMP - (YELLOW) (BLACK) 1700 TAG TRAVEL - (GRAY) 3701 DRIVE AND TAG HARNESS LR TAG DUMP - (PURPLE) 4601 TAG TRAVEL - (GRAY) 3701 RR TAG DUMP - (BROWN) 3601 TAG LIFT - (RED) 3800 (NOT USED) LF PRESS. SW. - (BLACK) 1210 NOTE: THE FOUR DIGIT WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS. GROUND WIRES FROM REAR HARNESS (4) FUSE DESIGNATION 1 RIGHT FRONT 2 RIGHT FRONT 3 BATTERY 4 IGNITION RIGHT REAR 6 LEFT REAR 7 LEFT REAR 8 RIGHT REAR 9 LEFT FRONT 10 LEFT FRONT 11 TRAVEL #10 WHITE WIRE GROUND FROM FRAME GROUND WIRES FROM FRONT HARNESS (2) MP AUG99

14 LEVEL DUMP EXCESS SLOPE NOT IN PARK/ BRAKE TRAVEL OFF UNDERSTAND OPERATOR S MANUAL BEFORE USING. BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE. ELECTRICAL CONNECTION DIAGRAM LEVELING SYSTEM WITH TOUCH PANEL CONTROL TO AUX. COMPRESSOR SEE COMPRESSOR DIAGRAM - (BROWN) 9700 COMPRESSOR HARNESS SWITCH BY O.E.M. TAG TRAVEL - (GRAY) GROUND STUD GROUND WIRE TAG DUMP - (YELLOW) (BLACK) 1700 #10 WIRE - GROUND TO FRAME SEE CONTROL BOX DIAGRAM TOUCH PANEL MODULAR CABLE TO BRAKE LIGHT ON DASH PARK BRAKE - (BLUE) 9000 SENSING UNIT COMPUTERIZED LEVELING CAUTION! PARK BRAKE SWITCH TO MASTER WARNING INDICATOR 7699 POWER HARNESS TAG DUMP SWITCH HARNESS TRAVEL - (GRAY) 1700 DRIVE AND TAG HARNESS FRONT HARNESS IGNITION - (YELLOW) 6110 BATTERY - (RED) 6100 ACC. - (BROWN) 6120 LF PRESS. SW. - (BLACK) 1210 LF - (RED) 1600 TRAVEL - (GRAY) 1700 RF PRESS. SW. - (ORANGE) 2210 RF - (BLUE) 2600 RF - (YELLOW) 200 LF - (GREEN) 100 SEE SOLENOID MANIFOLD DIAGRAM W/2 PRESSURE SWITCH FRONT MANIFOLD HARNESS AND VALVE CONNECTORS ARE LABELED SEE ELECTRICAL CONNECTION DIAGRAM TAG AXLE MANIFOLD TRAVEL - (GRAY) 3700 PRESSURE SW. - (YELLOW) 321 LR - (PURPLE) 4600 LR - (GREEN) 400 DRIVE AXLE AND MANIFOLD TRAVEL - (GRAY) 3700 RR - (BROWN) 3600 NOTE: THE (4) DIGIT WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS. RR - (ORANGE) 300 SEE SOLENOID MANIFOLD DIAGRAM W/1 PRESSURE SWITCH MP APR99

15 ELECTRICAL CONNECTION DIAGRAM TAG AXLE MANIFOLD SEE CONTROL BOX CONNECTION DIAGRAM DRIVE AND TAG HARNESS HARNESS AND VALVE CONNECTORS ARE LABELED SEE ELECTRICAL CONNECTION DIAGRAM LEVELING SYSTEM CONNECTIONS FOR DRIVE AXLE MANIFOLD TAG LIFT (NOT USED) - (RED) 3800 TRAVEL - (GRAY) 3701 TRAVEL - (GRAY) 3701 LR TAG - (PURPLE) 4601 LR TAG - (GREEN) 400 RR TAG - (BROWN) 3601 RR TAG - (ORANGE) 300 TAG AXLE MANIFOLD SEE SOLENOID MANIFOLD DIAGRAM 6 VALVE NOTE: THE FOUR DIGIT WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS. MP MAR99

16 ELECTRICAL CONNECTION DIAGRAM COMPRESSOR +12 SIGNAL - (BLACK OR BROWN) 9700 COMPRESSOR HARNESS FROM CONTROL BOX (A) PRESSURE SWITCH (D) OPEN 11 PSI CLOSE 10 PSI NOTE: THE (4) DIGIT WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS. 6 BROWN +12 (F) ORANGE WHITE GROUND 3 4 BLACK ( GROUND ) RELAY MTG. BOLT 7 12 VOLT ESSEX RELAY (C) COMPRESSOR MOTOR (E) RED FUSE 1 AMP (B) GRAY (GROUND) GRAY (+12 SIGNAL) 1 AMP (RED) 6100 NORMALLY OPEN 12 VOLT SOLENOID +12 VOLT BATTERY POWER MP FEB02

17 MOUNTING AND ADJUSTMENT INSTRUCTIONS LEVEL SENSING UNIT The sensing unit must be mounted to a solid surface and must not be exposed to any heat sources. Toward the middle of the vehicle but outside the frame rails is best. The sensing unit may be mounted between frame rails on pusher vehicles and trailers. The sensing unit may be mounted in a compartment but needs to be protected from stored objects. It is critical that the sensing unit is mounted in the proper position according to the sticker on the sensing unit. (See figure below). The springs should be compressed to approximately 1.2 inches. The correct method for adjusting the sensor is as follows: First, level the vehicle by placing a 24" level in the centerof the vehicle on the floor. With the vehicle level adjust the sensing unit until all yellow lights are out. This is done by drawingup or backing out the sensing unit screws. If a front light is on, adjust the front screw. If a side light is on adjust the side screw. If a rear light is on adjust the rear screws. One or more screws may have to be adjusted to turn the yellow lights out. After adjustment has been made, pull down on the sensing unit to make sure the unit is bottomed out on the screw heads. Check to make sure all yellow lights are out. If not, readjust. Rock the vehicle and recheck for yellow lights, readjust if needed. NOTE: The sensing unit has an accuracy tolerance of +/- 1" side to side and +/-.4" front to rear on a 36 vehicle. SOLID MOUNTING SURFACE SPRINGS (3) SCREWS (3) SENSING UNIT 4" DIA. X 3/4" THICK REAR CROSS MTG (BI-AXIS) SENSING UNIT THIS SIDE UP MP JUL98