HWH 310 SERIES Operator's Manual
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HWH 310 SERIES Operator's Manual

Leveling system
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OPERATOR'S MANUAL
HWH TOUCH PANEL-CONTROLLED
R
310 SERIES LEVELING SYSTEM
UNDERSTAND OPERATOR'S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
Ph: 800/321-3494 (or) 563/724-3396 | Fax: 563/724-3408
AP28834
H H
W
CORPORATION
FEATURING:
Touch Panel Control
Hydraulic Leveling
Kick-Down Jacks
Electronic Sensing Unit
HWH HYDRAULIC LEVELING
ON
NOT IN
PARK/
STORE
BRAKE
OFF
CAUTION!
HWH CORPORATION
(On I-80, Exit 267 South)
2096 Moscow Road | Moscow, Iowa 52760
www.hwh.com
R
ML30279/MP05.3025
01OCT18

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  • Page 1 CORPORATION OPERATOR’S MANUAL HWH TOUCH PANEL-CONTROLLED 310 SERIES LEVELING SYSTEM FEATURING: Touch Panel Control Hydraulic Leveling Kick-Down Jacks Electronic Sensing Unit HWH HYDRAULIC LEVELING NOT IN PARK/ STORE BRAKE CAUTION! UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.

  • 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: Control Identification

    CONTROL IDENTIFICATION LEFT EXTEND BUTTON FRONT RETRACT BUTTON "NOT IN PARK" FRONT EXTEND BUTTON LIGHT WARNING LIGHTS POWER ON (4-RED) LIGHT HWH HYDRAULIC LEVELING RIGHT SIDE "ON" BUTTON EXTEND BUTTON STORE LIGHT LEVELING LIGHTS NOT IN (4-YELLOW) PARK/ STORE "STORE" BUTTON...

  • Page 4: Operating Procedures

    OPERATING PROCEDURES SITE SELECTION Maintain adequate clearance in all directions for vehicle, Care must be taken not to raise the rear of the vehicle too room extensions, awnings, doors, steps, ect. Vehicle may high or the vehicle may roll forward or backward off the jacks. move in any direction due to jacks extending or retracting, If parking on soft ground or asphalt paving, wood blocks or settling of jacks or vehicle, equipment malfunction, ect.

  • Page 5: Jack Retract Procedures

    OPERATING PROCEDURES JACK RETRACT PROCEDURES EXTEND POSITION STORE/TRAVEL POSITION JACK POSITIONS CAUTION: IMPORTANT: It is recommended to retract Room DO NOT RELY SOLELY UPON THE Extensions before retracting the jacks. WARNING INDICATORS. IT IS THE OPERATOR’S RESPONSIBILITY TO CHECK THAT ALL JACKS ARE CAUTION: THE OPERATOR MUST BE SURE THAT IN THE STORE/TRAVEL POSITION BEFORE MOVING...
  • Page 6 OPERATING PROCEDURES MANUAL JACK RETRACTION (4 Jack Systems with Valve Release Nuts) NOTE: Use the Valve Release Nuts for retracting only if NOTE: Prior to APRIL 2002 a 1/4" Nut Driver was sent the "STORE" button on the control panel will not retract with the Operators Manual.

  • Page 7: Fluid Levels

    All major components of the system can be replaced To eliminate this problem, periodically check the leveling jacks with rebuilt parts or can be sent to HWH CORPORATION to and break loose any ice which may be causing improper operation.

  • Page 8: System Adjustment

    MAINTENANCE SYSTEM ADJUSTMENT SET SCREW, LOWER UPPER HORIZONTAL ADJUSTING ADJUSTING SET SCREW ADJUSTMENT ADJUSTING ADJUSTING HEAVY DUTY LOCK NUTS, STOP STANDARD & VERTICAL LEVELING LOW PROFILE ADJUSTMENT UNITS UNITS 6,000 lb. JACKS 9,000 lb. JACKS 16,000 lb. JACKS JACK ADJUSTMENT There are two basic adjustments which are made at the time 2.
  • Page 9 TROUBLE SHOOTING LEVELING SYSTEM The following is a list of problems, and possible solutions, which might occur to the leveling system. NOTE : Only qualified technicians should install or repair leveling systems on coaches. A knowledge of hydraulics, welding, the vehicle’s suspension and electrical system, as well as an understanding of the leveling system’s hydraulics and electronics is required.
  • Page 10 HYDRAULIC LINE CONNECTION DIAGRAM LEVELING SYSTEM BREATHER/ NOTE: BEFORE OPERATING VALVE RELEASE NUTS, FILLER CAP READ AND UNDERSTAND PROCEDURE FOR MANUAL JACK RETRACTION IN OPERATOR’S INSTRUCTIONS. VALVE RELEASE PUMP/MANIFOLD NUTS ASSEMBLY CHECK VALVE SHUTTLE CAPS (4) VALVE MANIFOLD FITTING NOTE: SOME MANIFOLD ARE EQUIPPED WITH VELOCITY VALVES.
  • Page 11 HYDRAULIC SCHEMATIC 305/310/325 SERIES, TOUCH PANEL-CONTROLLED LEVELING SYSTEM WITH KICK-DOWN JACKS RELIEF VALVE 12 VOLT D.C. HYDRAULIC SOLENOID MANIFOLD POWER UNIT ASSEMBLY RETURN PRESSURE PRESSURE/ RETURN SHUTTLE 50 PSI VALVE SWITCH CHECK SOLENOID SOLENOID SOLENOID SOLENOID VALVE VALVE LR VALVE LF VALVE RF VALVE RR INNER...
  • Page 12 310/325 LEVELING SYSTEM ELECTRICAL CONNECTION DIAGRAM SEE TOUCH PANEL #10 WIRE TO GROUND STUD - (WHITE) 6230 TO PARK TO PARK CONNECTION BRAKE BRAKE LIGHT DIAGRAM SWITCH ON DASH TOUCH PANEL (LABELED) - (LABELED) - CABLE ASSEMBLY TOUCH SEE CONTROL BOX 9000 9001 PANEL...

  • Page 13: Connection Diagram

    CONNECTION DIAGRAM 310/325 SERIES LEVELING SYSTEM TOUCH PANEL HWH HYDRAULIC LEVELING NOT IN PARK/ BRAKE STORE CAUTION! UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE. STORE-9 7-GROUND PUMP-10 6-PARK BRAKE LEFT FRONT-11...
  • Page 14 1 - JACK DOWN 14-BLANK 15-RIGHT FRONT WARNING SWITCH PART NUMBER AND AND SERIAL NUMBER TOUCH PANEL CABLE INPUT ROOM EXTENSION 15 PIN PUMP CONTROL (ONLY USED WITH HWH ROOM EXTENSION) SLIDE OUT TOUCH PANEL CABLE SWITCH CONNECTION LABEL MP85.3025 12MAY03...
  • Page 15 310/325 LEVELING SYSTEM HYDRAULIC MANIFOLD-PUMP RELAY ELECTRICAL CONNECTION DIAGRAM MANIFOLD DIAGRAM SEE GROUNDING INSTRUCTION DIAGRAM PRESSURE DO NOT REVERSE WIRE SWITCH (50 PSI) COLORS TO A & B ON PACKARD CONNECTORS NOTE: THE (4) DIGIT WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS.

  • Page 16: Grounding Instructions

    ELECTRICAL CONNECTION DIAGRAM 310/325 LEVELING SYSTEM POWER UNIT/HARNESS GROUNDING INSTRUCTIONS WELDED PUMP MOUNT USE GROUNDING STUD AND 3/8" INTERNAL STAR LOCKWASHERS AS SHOWN. IMPORTANT: STAR LOCKWASHER MUST BE USED BETWEEN GROUNDING SURFACE AND WIRE TERMINALS GROUND CABLE STRAP (NOT USED PUMP MOUNTING ON SOME PUMPS) CHANNEL...
  • Page 17 ELECTRICAL CONNECTION DIAGRAM MASTER WARNING LIGHT CAUTION: THE 6121 WIRE IN THE MASTER WARNING LIGHT PIGTAIL IS HOT WHENEVER THE IGNITION IS "ON" OR IN "ACC". THE 6121 WIRE MUST BE REMOVED FROM THE PIGTAIL WHEN USING DIRECT IGNITION VOLTAGE FOR THE MASTER WARNING INDICATORS. A MASTER WARNING INDICATOR SHOULD ALWAYS BE USED.
  • Page 19 BREATHER CAP - DIPSTICK - 1/4" NUT DRIVER 1 1/2" DIAMETER VALVE RELEASE SOLENOID VALVE NOTE: DO NOT turn the valve release nut more than 4 and 1/2 (four and one half) turns counter clockwise. Damage to the valve may result. VALVE RELEASE PLASTIC PLUG 2 1/4"...

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