HWH 725 Series Operator's Manual
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HWH 725 Series Operator's Manual

Computer-controlled hydraulic leveling system
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See also: Service Manual , Operator's Manual
OPERATOR'S MANUAL
HWH 725 Series, Computer-Controlled
R
Hydraulic Leveling System
Single Touch - Touch Panel Leveling Control
Ph: 800/321-3494 (or) 563/724-3396 | Fax: 563/724-3408
AP52668
H H
W
CORPORATION
FEATURING:
BI-AXIS Hydraulic Leveling
R
Four Double - Acting Jacks
Multiple Slide outs
Auxiliary Hand Pump
HWH COMPUTERIZED LEVELING
R
EXCESS
SLOPE
EXTEND
AUTO
LEVEL
NOT IN
PARK/
BRAKE
AUTO
STORE
RETRACT
TRAVEL
MODE
CANCEL
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 52760
www.hwh.com
R
EXTEND
MANUAL
RETRACT
ML52669/MP04.3387
23SEP13

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  • Page 1 CORPORATION OPERATOR’S MANUAL HWH 725 Series, Computer-Controlled Hydraulic Leveling System FEATURING: Single Touch - Touch Panel Leveling Control BI-AXIS Hydraulic Leveling Four Double - Acting Jacks Multiple Slide outs Auxiliary Hand Pump HWH COMPUTERIZED LEVELING EXCESS SLOPE EXTEND EXTEND AUTO...

  • Page 2: How To Obtain Warranty Service

    HWH CORPORATION personnel will contact you to the problem quickly. If the dealer has difficulty solving determine whether or not your claim is valid. If it is, HWH the problem, he should immediately contact the Customer CORPORATION will authorize repair or replacement of the Service Department, at HWH CORPORATION.

  • Page 3: Computer Control

    625S / 725 / 2000 SERIES LEVELING SYSTEM COMPUTER-CONTROL "EXCESS SLOPE" Indicator light LOWER FRONT Manual button "NOT IN PARK" Indicator light RAISE FRONT Manual button HWH COMPUTERIZED LEVELING JACK DOWN AUTO LEVEL Indicator light Indicator light (4) red EXCESS SLOPE "AUTO LEVEL"...

  • Page 4: Control Identification

    CONTROL IDENTIFICATION ROOM OPERATOR’S PANEL CORPORATION HYDRAULIC ROOM EXTENSION EXTEND ROOM CONTROL KEY SWITCH SWITCH CAUTION! UNDERSTAND OPERATOR’S MANUAL BEFORE USING. KEEP PEOPLE AND OBSTRUCTIONS RETRACT CLEAR OF ROOM WHEN OPERATING. CONTROL FUNCTIONS KEY SWITCH: The KEY SWITCH controls power to the ROOM ROOM CONTROL SWITCH: The ROOM CONTROL SWITCH CONTROL SWITCH.

  • Page 5: Cold Weather Operations

    For cold weather information see "COLD WEATHER OPERATIONS" below. The HWH systems with a computer processor monitor the pump run time and will turn the pump off if the run time exceeds a specified time. This time can vary with different systems. Due to available electronics or system design, the pump run time programs will also vary.

  • Page 6: Operating Procedures

    OPERATING PROCEDURES GENERAL INSTRUCTIONS Maintain adequate clearance in all directions for vehicle, room Any time a hydraulic leveling process is interrupted, retract extensions, awnings, doors, steps, etc. Vehicle may move in the jacks according to the JACK RETRACTION Section and any direction due to jacks extending or retracting, settling of then restart the leveling process.
  • Page 7 The system will not "AUTO STORE" or the "CANCEL" button stabilize the vehicle if the "EXCESS SLOPE" light comes on. on the HWH touch panel will stop the One or more jacks may not be extended. The system will automatic leveling function.
  • Page 8 OPERATING PROCEDURES 725 SERIES LEVELING SYSTEM JACK RETRACTION WARNING: WARNING: THE OPERATOR MUST BE SURE THAT DO NOT MOVE THE VEHICLE WHILE THE THERE ARE NO OBJECTS UNDER THE VEHICLE AND THAT LEVELING JACKS ARE STILL IN CONTACT WITH THE GROUND ALL PEOPLE ARE CLEAR OF THE VEHICLE.
  • Page 9 OPERATING PROCEDURES MANUAL HYDRAULIC OPERATION 1. Place transmission in the recommended position for parking Jacks will extend (or retract) in pairs to raise (or lower) a side the vehicle, and set the parking brake. Turn the ignition to the or end of the vehicle. Any jack not used for leveling can be "ACCESSORY"...
  • Page 10 DO NOT re-extend the room until the room 2. Unlock all room-locking devices to include travel has been fully retracted. clamps/locks supplied by manufacturers other than HWH. IMPORTANT: Do not hold the ROOM CONTROL SWITCH NOTE: If a MANUAL RETRACT WINCH is attached to in the "EXTEND"...
  • Page 11 DO NOT reverse direction of the room, contact Important: if the room extension is a level-out room, HWH Customer Service for assistance 1-800-321-3494. the room must raise completely before it will retract. If the room will not raise, do not force the room.
  • Page 12 CYLINDER CLOSE EXTEND understood or if the room begins to bind DO NOT force the room, contact HWH Customer Service for assistance 1-800-321-3494. DO NOT RETRACT LIFT BOLT UNTIL YOU HAVE READ "EXTENDING ROOM AFTER SERVICE" ON NEXT PAGE. ROOM EXTENDED...
  • Page 13 4. After lift bolts are retracted, push room switch to understood or if the room begins to bind DO NOT force "EXTEND" until room is fully extended and down. If the room, contact HWH Customer Service for assistance room dropped while retracting lift bolts, push room 1-800-321-3494.
  • Page 14 (See the hydraulic diagram or contact WHEN MANUALLY RETRACTING THE ROOM. MAKE HWH Corporation) The end of the valve has a 1/4" release SURE THERE ARE NO OBJECTS SUCH AS CARPET, nut. Use a 1/4" nut driver to turn the nut 4 & 1/2" turns CHAIRS, ETC.
  • Page 15 IMPORTANT: If at any stage something is not OPEN understood or if the room begins to bind DO NOT force VALVE OPENED the room, contact HWH Customer Service for assistance 1-800-321-3494. CYLINDER NOTE: Leave the solenoid valves open and the CLOSE...
  • Page 16 IMPORTANT: If at any stage something is not CYLINDER RELEASE CAMS understood or if the room begins to bind DO NOT force RETRACT the room, contact HWH Customer Service for assistance 1-800-321-3494. VALVE CLOSED NOTE: Leave the solenoid valves open and the...
  • Page 17 OPERATING PROCEDURES AUXILIARY HAND PUMP OPERATION RELEASE CAM FRONT VIEW END VIEW OPERATING MOTION OPEN CLOSE IF A LARGE VALVE IS USED, OPEN THE VALVE BY REMOVING THE PLASTIC PLUG THEN TURN AUXILIARY THE 1/4" VALVE RELEASE NUT NO MORE THAN HAND PUMP 2 FULL TURNS COUNTER CLOCKWISE.

  • Page 18: Maintenance

    MAINTENANCE PRIMING THE HAND PUMP VALVE RELEASE CAM SHOWN IN SHOWN IN TANK CLOSED OPEN POSITION POSITION OPEN CLOSE EXTEND SOLENOID VALVE HAND PUMP HANDLE JACK CONTROL HYDRAULIC SWITCH CAP END NEUTRAL POSITION EXTEND POSITION OPERATING MOTION TANK DOUBLE-ACTING JACKS (CAP AND ROD END HOSES) HAND PUMP HANDLE...

  • Page 19: Oil Level

    All major components of the system can be replaced become caked or clogged with mud. This condition may with rebuilt units or can be sent to HWH CORPORATION to hamper the proper operation of the leveling system. This be rebuilt, when the system is out of warranty.
  • Page 20 INSTRUCTION SHEET SENSING UNIT MAINTENANCE/SERVICE REMOTE MOUNTED "POTTED" ELECTRONIC SENSING UNIT SENSING UNIT ACCURACY TOLERANCE The sensing unit has an accuracy tolerance of ± 5.4 inches front to rear and ± 1 inch side to side on a 36 foot vehicle. Typical leveling results will be better. SENSING UNIT ADJUSTMENT / WITH ADJUSTING ENHANCEMENT Level the vehicle by placing a bubble level in the center of the Move the vehicle to an unlevel position and level the...

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