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OPERATOR’S MANUAL

ML10037/MP05.0502/LHD-S

26FEB04

Four Lever Control

Hydraulic Leveling

FEATURING:

HWH CORPORATION

(On I-80, Exit 267 South)

2096 Moscow Road | Moscow, Iowa 52760

Ph: 800/321-3494 (or) 563/724-3396 | Fax: 563/724-3408

www.hwh.com

100 SERIES LEVELING SYSTEM

HWH LEVER-CONTROLLED

Straight-Acting Jacks

Suspension Air Dump

AP10037

CORPORATION

SEPARATE CONTROLS

BEFORE USING. BLOCK FRAME AND TIRES SECURELY

BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.

STORE

EXTEND

CORPORATION

HWH

CAUTION!

UNDERSTAND OPERATOR’S MANUAL

LEVELING

UNDERSTAND OPERATOR’S MANUAL BEFORE USING.

REMOVING TIRES OR CRAWLING UNDER VEHICLE.

BLOCK FRAME AND TIRES SECURELY BEFORE

CAUTION!

HYDRAULIC

5AMP

FUSE

WARNING

CORPORATION

LEVEL

OFF

DUMP

Summary of Contents for 100 Series

Page 1: ...ght Acting Jacks Suspension Air Dump AP10037 W CORPORATION H H R SEPARATE CONTROLS BEFORE USING BLOCK FRAME AND TIRES SECURELY LR BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE STORE EXTEND LF RF CORPORATION HWH R RR CAUTION UNDERSTAND OPERATOR S MANUAL RR RR LEVELING UNDERSTAND OPERATOR S MANUAL BEFORE USING REMOVING TIRES OR CRAWLING UNDER VEHICLE BLOCK FRAME AND TIRES SECURELY BEFORE CAUTION H...

Page 2: ... customer satisfaction Therefore if you discover a defect or HWH CORPORATION strives to maintain the highest level of THIS IS NOT TO BE INTERPRETED AS A STATEMENT OF WARRANTY HOW TO OBTAIN WARRANTY SERVICE 563 724 3396 OR 800 321 3494 Give your name and address coach manufacturer and model year date the HWH CORPORATION 2096 Moscow Rd Moscow IA 52760 notify the Customer Service Department If your d...

Page 3: ...osi tion Air will exhaust from the vehicle suspension while the switch is held in the DUMP position The switch does not control the power to the master JACKS DOWN warning light the master WARNING light on the panel or the buzzer ever the corresponding jack is extended 2 inches or more provided the ignition switch is in the ON or ACC position and the system is on Some vehicles are equipped with a d...

Page 4: ...he ground is too uneven the jacks may not have enough stroke to level the vehicle The vehicle may have to be moved side to side first ROOM EXTENSION PROCEDURES read this section carefully If the vehicle is equipped with kick down jacks the wheels MUST be blocked securely Do NOT operate any room extension until the leveling and stabilizing procedure is complete Do If the vehicle is equipped with a ...

Page 5: ...OPLE AND EQUIP MENT ARE CLEAR OF THE VEHICLE CHECK THAT ALL JACKS ARE FULLY RETRACTED INTO THE STORE TRAVEL POSITION AND THAT THE VEHICLE JACK POSITIONS 2 Visually check that all jacks are in the STORE TRAVEL IS AT THE PROPER RIDE HEIGHT BEFORE MOVING THE VEHICLE 4 Push the rocker switch on the jack control plate to OFF Turn the ignition to off or proceed to travel IMPORTANT Always retract the two...

Page 6: ...ENSING UNIT BELOW THE SURFACE MOUNTING FRONT SIDE THIS UP SCREWS 3 SPRINGS 3 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 sh...

Page 7: ...han 1 16 of this extension 2 ADJUSTING THE MICRO SWITCH The micro switch will need adjusting if the activating rod does not fall directly upon the nipple of the micro switch The adjustment must be made after disassembling a portion of of the control valve First remove the mounting bracket and the detent plate Next remove the snap rings on the pivot rod and carefully slide off the valve handles spa...

Page 8: ...s will not go out bad warning switch or wires are shorted to ground C Check PC board 7 HYDRAULIC PUMP ACTIVATES WITHOUT USE OF C Pump is not developing pressure CONTROL VALVE HANDLES B Oil supply low in reservoir D Broken hydraulic line 6 HYDRAULIC PUMP ACTIVATES BUT THE JACKS WILL NOT EXTEND A Micro switch out of adjustment D Short in PC board D Broken spring on pivot rod The following is a list ...

Page 9: ...LF RF RR FRONT RETURN PRESSURE 100 SYSTEM HYDRAULIC LINE CONNECTION DIAGRAM MP65 0505 24AUG95 LR EXTEND STORE FOUR LEVER SEPARATE CONTROL ...

Page 10: ...R DUMP VALVE IS TO TEE INTO THE LINE BETWEEN THE AIR BAG AND THE HEIGHT CONTROL VALVE THREE HEIGHT CONTROL VALVES ARE THE MOST COMMON ON AIR SUSPENSION SYSTEMS 2 3 OR 4 CONTROL VALVES MAY BE USED USE ONLY DOT APPROVED FITTINGS AND TUBING HEIGHT CONTROL VALVE AIR DUMP SOLENOID VALVES ARE ACTIVATED OPENED BY A 12 SIGNAL SEE ELECTRICAL DIAGRAM FOR CONNECTION FROM WIRE HARNESS B A A B A B A B ...

Page 11: ...CLE UNDERSTAND OPERATOR S MANUAL CAUTION H CORPORATION H W R EXTEND STORE LR LF RF RR H CORPORATION H W R LEVEL HYDRAULIC LEVELING WARNING CAUTION BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE DUMP OFF FUSE 5AMP LR LR LF LF RF RF RR RR UNDERSTAND OPERATOR S MANUAL BEFORE USING B A A B A A B AIR DUMP VALVE OTHER AIR DUMP VALVE ARRANGEMENTS ARE POSSIBLE LEVEL SEE SUS...

Page 12: ...UIRED CHECK APPLICABLE CODE PUMP MUST BE MOUNTED SOLIDLY TO FRAME SOME PUMPS HAVE A BATTERY GROUND GROUND CABLE THAT IS TO BE ATTACHED TO THE GROUND STUD FUSE GROUND STUD IF THE PUMP BRACKET IS WELDED TO THE FRAME USE THE GROUND STUD TO ATTACH THE PUMP TO THE BRACKET IF THE PUMP BRACKET IS BOLTED TO THE FRAME USE THE GROUND STUD TO ATTACH THE BRACKET TO THE FRAME NOTE ELECTRICAL CONNECTION DIAGRAM...

Page 13: ...LR GREEN 4000 LIGHTS RED WARNING NOT USED JACK RED 6120 12 ACCESSORY FUSE M STRAIGHT ACTING JACKS WITH AIR DUMP FEATURE ELECTRICAL SCHEMATIC BLUE 6820 GROUND WHITE 6230 DUMP YELLOW 9300 DUMP YELLOW 9301 SOLENOID S AIR DUMP AIR DUMP SOLENOID S PUMP FUSE MAY BE REQUIRED CHECK APPLICABLE CODE BUZZER 5 AMP FUSE 12V IGN JACK DOWN LIGHT RELAY 6231 6230 6230 NOTE THE 4 DIGIT WIRE NUMBER SUPERSEDES ANY AN...

Page 14: ...TION SWITCH THE POWER MUST COME FROM THE ON SIDE OF THE IGNITION SWITCH NOT THE ACC SIDE SEE FIGURE 2 BELOW BY SUPPLYING IGNITION POWER TO THE WARNING BUZZER AND LIGHT AND ACC POWER TO THE CONTROL PANEL THE SYSTEM MAY BE OPERATED IN ACCESSORY WITHOUT THE BUZZER SOUNDING THE NEGATIVE SIGNAL FOR THE WARNING INDICATORS MUST ALWAYS COME FROM THE CONTROL PANEL CAUTION THE PURPLE WIRE IN THE MASTER WARN...

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