HWH 510 Series User manual

HWH 510 SERIES, COMPUTER-CONTROLLED LEVELING SYSTEM:
ML7854/MI15.25
12AUG97
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. MOUNTING BRACKET HEIGHT:
A. MAKE SURE JACKS ARE FULLY RETRACTED.
B. PULL JACK BY HAND TO THE VERTICAL POSITION AND
CHECK DIMENSION A. (SEE FIGURE 1) DIMENSION "A"
SHOULD BE 3 TO 5 INCHES FOR DRY NEW VEHICLES
AND 2 TO 4 INCHES FOR WET VEHICLES WITH OVER
10,000 MILES.
2. STORED POSITION STOP:
SPACE MUST BE ALLOWED FOR THE JACK TO FULLY
EXTEND IN THE STORED (HORIZONTAL) POSITION (SEE
FIGURE 2) ALSO BE SURE TIRES, SPRINGS, STEERING
LINKAGE, ECT., DO NOT INTERFERE IF THE JACK IS
FULLY EXTENDED IN THE STORE/TRAVEL POSITION.
3. HOSE AND ELECTRICAL WIRING:
CHECK HOSES AND WIRING FOR KINKING OR RUBBING
ON SHARP OBJECTS WHEN JACKS ARE OPERATED. ALSO
CHECK THE ROUTING OF HOSES AND WIRING TO INSURE
THEY WILL NOT BE HEATED TO OVER 200 DEG. F.
[COMMENTS]
[COMMENTS]
[COMMENTS]
FIGURE 1
FIGURE 2
9.0
A
4. POWER CONNECTION:
TURN IGNITION SWITCH TO "OFF". PRESS THE "I" BUTTON.
(HYDRAULIC START) NO LIGHTS ON THE PANEL SHOULD
BE LIT.
[COMMENTS]
TOUCH PANEL CONTROLS WITH AIR DUMP
CEEDING. OIL SHOULD BE WITHIN ONE INCH OF THE
TOP OF THE RESERVOIR. JACKS MUST BE FULLY RE-
TRACTED TO CHECK THE HYDRAULIC OIL LEVEL.
NOTE: CHECK OIL LEVEL IN RESERVOIR BEFORE PRO-

MI1526
12-20-94
OK REWORK
5. HYDRAULIC START "HYD" BUTTON:
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 "HYD" BUTTON ONE TIME. THE "HYDRAULIC OPERATION" INDICATOR LIGHT
SHOULD COME ON AND GLOW STEADY.
[COMMENTS]
6. "NOT IN PARK/BRAKE" CHECK:
WITH THE "HYDRAULIC OPERATION" INDICATOR LIGHT ON, RELEASE THE PARKING
BRAKE AND CONFIRM THAT THE "NOT IN PARK/BRAKE" INDICATOR LIGHT COMES ON.
RESET THE PARKING BRAKE. THE "NOT IN PARK/BRAKE" LIGHT SHOULD GO OUT.
[COMMENTS]
7. VERTICAL OPERATION:
PRESS THE "HYD" BUTTON A SECOND TIME. THE "HYDRAULIC OPERATION" INDICATOR
LIGHT SHOULD START TO FLASH. THE PUMP SHOULD COME ON AND ALL FOUR JACKS
[COMMENTS]
8. JACK OPERATION:
USE "RAISE" AND "LOWER" BUTTONS ON THE RIGHT SIDE OF THE PANEL TO CHECK
JACK OPERATION. THE JACKS OPERATE IN PAIRS, FRONT JACKS, REAR JACKS,
RIGHT SIDE JACKS OR LEFT SIDE JACKS. PUSH "RAISE RIGHT SIDE" MANUAL BUTTON.
CONTINUE TO PUSH THE BUTTON UNTIL THE TWO RIGHT SIDE JACKS EXTEND AND
RAISE THE COACH APPROXIMATELY THREE INCHES. ONLY THE TWO RIGHT SIDE
JACKS SHOULD EXTEND, NOTHING ELSE SHOULD HAPPEN. PUSH THE "LOWER RIGHT
SIDE" MANUAL BUTTON. THIS SHOULD RETRACT THE TWO RIGHT SIDE JACKS. PUSH
THIS BUTTON UNTIL BOTH JACKS ARE RETRACTED (5 OR 10 SECONDS). THE JACKS
SHOULD STILL BE VERTICAL. NOW REPEAT THE TEST WITH THE OTHER THREE
SETS OF "RAISE" AND "LOWER" BUTTONS. REMEMBER THE JACKS OPERATE IN PAIRS
CHECK THAT ONLY THE CORRESPONDING JACKS EXTEND OR RETRACT WHEN
BUTTON IS PUSHED.
[COMMENTS]
CAUTION!
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
HWH COMPUTERIZED LEVELING
JACK STORAGE
OPERATION "NOT IN PARK"
Indicator light Button
"TRAVEL" "OFF"
Button
"DUMP" Button
"STORE"
Indicator light Button
"HYDRAULIC"
Indicator light Indicator light
Manual button
RAISE LEFT SIDE
DUMPSTORE
OFF TRAVEL
LEVEL
HYD
PARK/
NOT IN
SLOPE
EXCESS
Indicator light
"EXCESS SLOPE"
Manual button
LOWER REAR Manual button
RAISE REAR
(4) yellow
Indicator light
LEVEL SENSING Manual button
SIDE
Manual button
RAISE RIGHT SIDE Indicator light
JACK DOWN
Manual button
RAISE FRONT Manual button
LOWER LEFT SIDE
Manual button
(4) red
LOWER FRONT
LOW BATTERY
Indicator light
BRAKE LOWER RIGHT
HYDRAULIC
SHOULD SWING VERTICAL. THE FOUR "JACKS DOWN" LIGHTS AS WELL AS THE MASTER
"JACKS DOWN" LIGHT ON THE DASH SHOULD COME ON. THE PUMP SHOULD STOP
WITH IN 3-5 SECONDS AFTER ALL THE WARNING LIGHTS ARE ON. THE "HYDRAULIC
OPERATION" INDICATOR LIGHT SHOULD NOW GLOW STEADY. CHECK IF ALL JACKS
ARE PERPENDICULAR TO THE FLOOR OF THE VEHICLE. IF TILTED THEY NEED ADJUSTMENT.

MI1527
12-20-94
OK REWORK
10. STORE OPERATION:
PUSH THE "OFF" BUTTON. PUSH THE "HYD" ON BUTTON ONE TIME THEN PUSH THE
"STORE" BUTTON. ALL FOUR JACKS SHOULD SWING TOWARD HORIZONTAL. THE
FOUR RED "JACKS DOWN" LIGHTS AND THE MASTER "JACKS DOWN" LIGHT ON THE
[COMMENTS]
12. AUTO LEVELING-1ST STAGE:
[COMMENTS]
9. AIR DUMP OPERATION:
WITH THE SYSTEM ON AND THE JACKS IN THE VERTICAL POSITION, PUSH THE
"DUMP" BUTTON. WHILE PUSHING THE "DUMP" BUTTON, THE DUMP SOLENOIDS
WILL OPEN AND RELEASE AIR FROM THE AIR BAGS. WHEN THE BUTTON IS RELEASED,
THE DUMP SOLENOID WILL CLOSE.
NOTE: THE MANUAL "DUMP" BUTTON WILL OPERATE WITH THE SYSTEM OFF AND THE
IGNITION SWITCH IN THE "ACC" OR "ON", OR IF THE SYSTEM IS ON, THE JACKS MUST
BE VERTICAL.
[COMMENTS]
THE ENGINE MUST BE OFF TO LEVEL THE VEHICLE. TURN THE IGNITION SWITCH TO
"ON" OR "ACC". POSITION THE VEHICLE SO ONE OR MORE YELLOW LEVELING LIGHTS
ARE ON. PUSH THE "I" BUTTON ONCE TO TURN THE SYSTEM ON. PUSH THE "I" BUTTON
A SECOND TIME TO MOVE THE JACKS TO THE VERTICAL POSITION. ALL OF THE RED
WARNING LIGHTS SHOULD BE ON. THESE OPERATIONS WERE CHECKED IN STEPS
4 THROUGH 7 AND SHOULD BE OK.
DASH SHOULD GO OUT. THE ENGINE MAY HAVE TO RUN TO FILL THE AIR BAGS TO
CHECK THIS OPERATION. THE "TRAVEL PERMISSIBLE" LIGHT SHOULD BE ON WHEN ALL
"JACKS DOWN" LIGHTS ARE OUT.
11. HYDRAULIC OIL LEVEL:
CHECK RESERVOIR OIL LEVEL. OIL SHOULD BE WITHIN ONE INCH OF THE TOP OF
THE TANK. IF OIL IS LOW DO NOT CONTINUE UNTIL THE TANK HAS BEEN FILLED.
POWER UNIT COULD BE DAMAGED. THE JACKS MUST BE FULLY RETRACTED TO CHECK
HYDRAULIC OIL LEVEL.
[COMMENTS]

MI1528
12-21-94
OK REWORK
14. 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]
15. AUTOMATIC RETRACT (STORE):
A. THE "JACK STORAGE" INDICATOR LIGHT WILL START TO FLASH.
B. AS EACH JACK CLEARS THE GROUND, IT SHOULD SWING HORIZONTAL AND CONTINUE
TO RETRACT.
D. THE GREEN "TRAVEL PERMISSIBLE" INDICATOR LIGHT SHOULD COME ON WHEN
THE RED WARNING LIGHTS ARE OUT.
C. THE RED WARNING LIGHTS SHOULD BE OUT.
E. 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 IN THE HORIZONTAL POSITION
AND FULLY RETRACTED.
[COMMENTS]
TIME ANY JACKS NOT ALREADY TOUCHING THE GROUND WILL BE EXTENDED TO
D. THE PUMP WILL COME BACK ON AND RUN UNDER LOW PRESSURE. DURING THIS
ALL YELLOW LIGHTS ARE OUT OR UNTIL ONE JACK HAS REACHED FULL STROKE.
SHORT DELAY BETWEEN OPERATION OF THE JACKS . THIS SHOULD CONTINUE UNTIL
LIGHT WHICH IS LIT. THE PUMP WILL CYCLE ON AND OFF AS REQUIRED. THERE IS A
C. TWO OR THREE JACKS AT A TIME WILL EXTEND CORRESPONDING TO ANY YELLOW
A. THE "HYDRAULIC OPERATION" INDICATOR LIGHT WILL START TO BLINK.
E. THE "HYDRAULIC OPERATION" LIGHT WILL GO OUT. THE PANEL WILL TURN OFF.
PUSH THE "HYD" BUTTON AGAIN (3RD) TIME.
13.AUTO LEVELLING -2ND STAGE:
[COMMENTS]
B. THE AIR WILL DUMP FROM THE SUSPENSION FOR APPROXIMATELY 30 SECONDS
BEFORE LEVELING STARTS.
START THE VEHICLE ENGINE AND ALLOW THE AIR BAGS TO REINFLATE. PUSH THE
"HYD" BUTTON. THE "HYDRAULIC OPERATION" INDICATOR LIGHT WILL GLOW STEADY.
PUSH THE "STORE" BUTTON ONE TIME.
STABLIZE THE VEHICLE. NOTE: THE JACKS SHOULD LIFT THE VEHICLE AT LEAT 1/2
INCH, BUT SHOULD NOT LIFT THE VEHICLE MORE THAN 1 INCH.