HWH 625 Series User manual

HWH COMPUTERIZED 625 LEVELING SYSTEM
ML29678/MI15.450C
13MAY03
MANUFACTURER
VEHICLE ID#
TYPE DATE
INSPECTOR
CAUTION: DO NOT OPERATE THIS SYSTEM UNLESS FULLY INSTRUCTED ON SYSTEM SAFETY PROCEDURES.
OK REWORK
FINAL CHECK OUT
1. POWER CONNECTION:
[COMMENTS]
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
Indicator light
"EXCESS SLOPE"
Manual button
RAISE LEFT SIDE
JACK STORAGE
Indicator light
Indicator light
"OFF"
Button
"TRAVEL MODE"
"STORE"
Button
"NOT IN PARK/BRAKE"
"ON/AUTO"
HYDRAULIC OPERATION
Indicator light
Indicator light
Button
Manual button LEVEL SENSING
Indicator light
(4) yellow
Manual button
RAISE REAR
Manual button LOWER REAR
Manual button
LOWER RIGHT SIDE
RAISE RIGHT SIDE
Manual button
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
LOWER LEFT SIDE
CAUTION!
OFF TRAVEL
STORE
PARK/
BRAKE
NOT IN
RAISE FRONT
Manual button
LOWER FRONT
Manual button
JACK DOWN
Indicator light
LOW BATTERY
Indicator light
HWH COMPUTERIZED LEVELING
ON
AUTO
EXCESS
SLOPE (4) red
TURN IGNITION SWITCH TO "OFF". PRESS THE "I" BUTTON. (HYDRAULIC START) NO
LIGHTS ON THE PANEL SHOULD BE LIT.
PLACE TRANSMISSION IN THE RECOMMENDED POSITION FOR PARKING THE VEHICLE,
AND SET THE PARKING BRAKE. TURN THE IGNITION SWITCH TO "ACC" OR "ON".
PRESS THE "I" BUTTON ONE TIME. THE "HYDRAULIC OPERATION" INDICATOR
WITH THE "HYDRAULIC OPERATION" INDICATOR LIGHT ON, RELEASE THE PARKING BRAKE.
THE "HYDRAULIC OPERATION" INDICATOR LIGHT SHOULD GO OUT. PUSH THE "I" (ON/AUTO)
BUTTON. THE NOT IN PARK/BRAKE INDICATOR SHOULD BE ON WHILE PUSHING THE "I"BUTTON.
2. HYDRAULIC START "I" BUTTON
LIGHT SHOULD COME ON AND GLOW STEADY.
4. "NOT IN PARK/BRAKE" CHECK:
[COMMENTS]
[COMMENTS]
MODE
DUMP
Button
"DUMP"
3. AIR DUMP CHECK:
BAGS AT ALL FOUR CORNERS ARE EMPTY.
THE SUSPENSION. AFTER THE AIR IS COMPLETELY EXHAUSTED, CHECK THAT THE AIR
PUSH AND HOLD THE "DUMP" BUTTON. THE AIR SHOULD COMPLETELY EXHAUST FROM
[COMMENTS]
RESET THE PARKING BRAKE. PUSH THE "I" BUTTON. THE "HYDRAULIC OPERATION" INDICATOR
LIGHT SHOULD COME ON, THE "NOT IN PARK/BRAKE LIGHT SHOULD NOT BE ON.

MI15.450F
05NOV02
OK REWORK
5. JACK OPERATION:
[COMMENTS]
USE THE "RAISE" AND "LOWER" BUTTONS ON THE RIGHT SIDE OF THE PANEL TO CHECK
THE JACK OPERATION. USE EACH "RAISE" BUTTON TO MAKE SURE THE APPROPRIATE
JACK PAIRS WORK WITH ITS BUTTON. EXAMPLE PUSH AND HOLD THE FRONT RAISE BUTTON.
THE TWO FRONT RED INDICATOR LIGHTS SHOULD COME ON. THE TWO FRONT JACKS SHOULD
EXTEND AND LIFT THE VEHICLE. USE THE "LOWER" BUTTON TO MAKE SURE EACH JACK WILL
FULLY RETRACT. REPEAT THIS WITH THE OTHER THREE RAISE AND LOWER BUTTONS.
REMEMBER, THE JACKS OPERATE IN PAIRS. CHECK THAT ONLY THE CORRESPONDING JACKS
EXTEND OR RETRACT WHEN A BUTTON IS PUSHED. THE PUMP SHOULD ONLY RUN WHEN A
"RAISE" BUTTON IS PUSHED.
7. STORE OPERATION:
EXTEND ALL FOUR JACKS TO THE GROUND. DO NOT LIFT THE COACH. PUSH THE "O" OFF
BUTTON. THE "STORE" INDICATOR LIGHT SHOULD START BLINKING. ALL FOUR JACKS SHOULD
RETRACT. THE FOUR RED "JACKS DOWN" LIGHTS SHOULD GO OUT. THE "TRAVEL" INDICATOR
LIGHT SHOULD BE ON WHEN ALL "JACKS DOWN" LIGHTS ARE OUT. THE "STORE" LIGHT SHOULD
STOP BLINKING SIX MINUTES AFTER THE LAST RED WARNING LIGHT GOES OUT. [COMMENTS]
8. HYDRAULIC OIL LEVEL:
CHECK RESERVOIR OIL LEVEL. OIL SHOULD BE BETWEEN THE TWO LINES ON BREATHER CAP
DIP STICK. IF OIL IS LOW DO NOT CONTINUE UNTIL THE TANK HAS BEEN FILLED. POWER UNIT
COULD BE DAMAGED. JACKS MUST BE FULLY RETRACTED TO CHECK THE HYDRAULIC OIL LEVEL.
REAR VIEW
LEFT REAR CORNER RIGHT REAR CORNER
REAR VIEW
BEFORE PERFORMING AUTO LEVELING PROCEDURES, ELEVATE ONLY THE LEFT REAR
CORNER OF THE COACH BY DRIVING ONTO A 3" RAMP OR BLOCK. REPEAT THE
AUTO LEVELING PROCEDURES WITH ONLY THE RIGHT REAR CORNER ELEVATED 3".
ELEVATEDELEVATED
6. MASTER WARNING LIGHT/ BUZZER/CHIME CHECK:
SHOULD ONLY WORK WITH THE IGNITION IN THE "ON" POSITION. THE MASTER WARNING LIGHT
THE RED JACK DOWN MASTER WARNING LIGHT ON THE DASH AND THE JACK DOWN BUZZER
AND BUZZER SHOULD COME ON WITH ANY ONE JACK THAT IS EXTENDED AN INCH. [COMMENTS]
DO NOT OVERFILL THE TANK. [COMMENTS]

MI15.450H
05NOV02
OK REWORK
11. SENSING UNIT:
AFTER AUTO LEVELING-2ND STAGE, ALL YELLOW LEVELING LIGHTS SHOULD BE OUT.
CHECK WITH A LEVEL TO SEE THAT THE VEHICLE IS LEVEL. IF IT IS, THE SENSING
UNIT IS PROPERLY ADJUSTED. [COMMENTS]
12. AUTOMATIC RETRACT (STORE):
A. THE "JACK STORAGE" INDICATOR LIGHT WILL START TO FLASH.
C. THE GREEN "TRAVEL" INDICATOR LIGHT SHOULD COME ON WHEN
THE RED WARNING LIGHTS ARE OUT.
B. THE RED WARNING LIGHTS SHOULD BE OUT WHEN THE JACKS ARE FULLY RETRACTED.
D. THE SYSTEM WILL AUTOMATICALLY SHUT DOWN SIX MINUTES AFTER ALL THE JACKS
ARE RETRACTED. ALL LIGHTS ON THE TOUCH PANEL SHOULD NOW BE OUT EXCEPT
THE "TRAVEL" LIGHT. CHECK THAT ALL JACKS ARE FULLY RETRACTED. COACHES
[COMMENTS]
10. AUTO LEVELING - 2ND STAGE:
PUSH THE "I" BUTTON AGAIN (2ND) TIME.
A. THE "HYDRAULIC OPERATION" INDICATOR LIGHT WILL START TO BLINK.
C. TWO JACKS AT A TIME WILL EXTEND CORRESPONDING TO ANY YELLOW LIGHT WHICH IS LIT.
THE PUMP WILL CYCLE ON AND OFF AS REQUIRED. THERE IS A SHORT DELAY BETWEEN
OPERATION OF THE JACKS. THIS SHOULD CONTINUE UNTIL ALL YELLOW LIGHTS ARE OUT OR
UNTIL ONE JACK HAS REACHED FULL STROKE.
D. THE PUMP WILL COME BACK ON. DURING THIS TIME ANY JACKS NOT ALREADY TOUCHING
THE GROUND WILL BE EXTENDED TO STABILIZE THE VEHICLE.
THE JACKS SHOULD LIFT THE VEHICLE AT LEAST 1/2 INCH BUT SHOULD NOT LIFT THE
VEHICLE MORE THAN 1 INCH.
E. THE "HYDRAULIC OPERATION" LIGHT WILL GO OUT. [COMMENTS]
THE IGNITION SWITCH MUST BE IN THE "ON" POSITION WITH THE ENGINE RUNNING.
PUSH THE "STORE" BUTTON ONE TIME.
WITH AIR SUSPENSION SHOULD RETURN TO RIDE HEIGHT A FEW MINUTES
AFTER JACKS ARE RETRACTED.
POSITION THE VEHICLE SO ONE OR MORE YELLOW LEVELING LIGHTS ARE ON.
PUSH THE "I" BUTTON ONCE TO TURN THE SYSTEM ON.
9. AUTO LEVELING - 1ST STAGE:
[COMMENTS]
B. AIR WILL DUMP FOR 25 SECONDS BEFORE STARTING TO LEVEL.
NOTE: IF THE "EXCESS SLOPE" LIGHT COMES ON, THE HYDRAULIC OPERATION LIGHT WILL TURN
OFF. THE "EXCESS SLOPE" LIGHT WILL STAY ON. PUSH THE "STORE" BUTTON AND ALLOW THE
JACKS TO RETRACT COMPLETELY.
NOTE: