HWH 625 Series Operator's Manual
Computer-controlled leveling system
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Also See for 625 Series:
- Operator's manual (41 pages) ,
- Checklist (3 pages) ,
- Operator's manual (27 pages)
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OPERATOR'S MANUAL
HWH COMPUTER-CONTROLLED
625 SERIES LEVELING SYSTEM
UNDERSTAND OPERATOR'S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
Ph: 800/321-3494 (or) 563/724-3396 | Fax: 563/724-3408
AP28847 - U.S.
AP34633 - Europe
H H
W
CORPORATION
R
FEATURING:
Touch Panel Leveling Control
BI-AXIS Hydraulic Leveling
R
Kick-Down Jacks
HWH COMPUTERIZED LEVELING
EXCESS
ON
SLOPE
AUTO
NOT IN
PARK/
STORE
BRAKE
TRAVEL
MODE
OFF
CAUTION!
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
ML30288/MP05.6004
09JUN05
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Table of Contents
Related Manuals for HWH 625 Series
Summary of Contents for HWH 625 Series
- Page 1 CORPORATION OPERATOR’S MANUAL HWH COMPUTER-CONTROLLED 625 SERIES LEVELING SYSTEM FEATURING: Touch Panel Leveling Control BI-AXIS Hydraulic Leveling Kick-Down Jacks HWH COMPUTERIZED LEVELING EXCESS SLOPE AUTO NOT IN PARK/ STORE BRAKE TRAVEL MODE CAUTION! UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
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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
"EXCESS SLOPE" LOW BATTERY FRONT RETRACT BUTTON LIGHT LIGHT "NOT IN PARK" LIGHT FRONT EXTEND BUTTON HYDRAULIC OPERATION LIGHT HWH COMPUTERIZED LEVELING WARNING LIGHTS (4- Red) EXCESS "I" ON BUTTON SLOPE LEVEL STORE LIGHT RIGHT SIDE EXTEND BUTTON NOT IN... -
Page 4: 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 5: Operating Procedures
OPERATING PROCEDURES GENERAL INSTRUCTIONS Maintain adequate clearance in all directions for vehicle, room If the hand / auto brake is not set when the "HYD" button extensions, awnings, doors, steps, etc. Vehicle may move in is pressed, the "NOT IN PARK/BRAKE" light will come on. any direction due to jacks extending or retracting, settling of When the "HYD"... - Page 6 OPERATING PROCEDURES 625 SERIES LEVELING SYSTEM AUTOMATIC HYDRAULIC LEVELING 1. Place transmission in the recommended position for The system will automatically extend the jacks to level the parking vehicle and set parking brake. Turn the coach vehicle and then extend any remaining jacks for stabilizing.
- Page 7 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"...
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Page 8: Maintenance
The oil level should be checked when the vehicle is first FLUID: HWH Specialty Hydraulic Oil is recommended. In an purchased and then once every two years. More often if emergency Dexron automatic transmission fluid can be used. -
Page 9: System Adjustment
CANNOT ROLL FORWARD OR BACKWARD. qualified RV repair center, your vehicle or coach manufacturer, or HWH CORPORATION for service or repair. Set the park/brake. Switch the ignition to the "ACC" or "ON" position. Push the "ON/OFF" switch toward "ON". Release the parking brake and confirm that the "PARK"... - Page 10 SENSING UNIT MAINTENANCE/SERVICE 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 To adjust the sensing unit, first the vehicle must be level.
- Page 11 HYDRAULIC LINE CONNECTION DIAGRAM 625 SERIES LEVELING SYSTEM (WITH 4 KICK-DOWN JACKS) NOTE: BEFORE OPERATING VALVE RELEASE NUTS, READ AND UNDERSTAND PROCEDURE FOR MANUAL JACK RETRACTION IN OPERATOR’S INSTRUCTIONS. LEFT FRONT RIGHT FRONT VALVE BREATHER RELEASE NUTS SHUTTLE VALVE NOTE: SOME...
- Page 12 HYDRAULIC SCHEMATIC 625 SERIES BI-AXIS LEVELING WITH KICK-DOWN JACKS *50 PSI SWITCH MAY NOT BE RELIEF VALVE USED ON ALL 625 MANIFOLDS HYDRAULIC SOLENOID MANIFOLD POWER UNIT ASSEMBLY RETURN PRESSURE 3000 PSI SWITCH *50 PSI SWITCH PRESSURE/RETURN SHUTTLE VALVE CHECK SOL.VALVE...
- Page 13 ELECTRICAL CONNECTION DIAGRAM 625 SERIES LEVELING SYSTEM PARK BRAKE - MASTER WARNING LIGHT AND BUZZER TOUCH PANEL - JACK WARNING LIGHTS AND PRESSURE SWITCHES PRESSURE PRESSURE SWITCH SWITCH WARNING WARNING SWITCH SWITCH 6235 2000 LEFT FRONT RIGHT FRONT 1000 6235...
- Page 14 NOT BE USED ON ALL 625 MANIFOLDS. LEVELING MANIFOLD 3400 7601 2400 7600 1400 6240 4400 6240 TO HWH GROUND STUD - 6240 TO 3000 LB PRESSURE SWITCH - 8100 12 PIN BROWN 4 PIN LEVELING GRAY MANIFOLD 8 PIN BLACK...
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Page 15: Electrical Connection Diagram
ELECTRICAL CONNECTION DIAGRAM 625 SERIES LEVELING SYSTEM CONTROL BOX CONNECTION INFORMATION 12 PIN BROWN 12 PIN BLACK 4 PIN GRAY 8 PIN BLACK 12 PIN GRAY WIRE WIRE PIN # WIRE DESCRIPTION AND FUNCTION COLOR NUMBER GRAY CONNECTOR 4 PIN GRAY CONNECTOR... - Page 16 ELECTRICAL CONNECTION DIAGRAM 625 OR 625S SERIES LEVELING SYSTEMS CONTROL BOX - LED - FUSE LOCATION AND DESCRIPTION RELAY DESCRIPTION FUSE 1-YELLOW RIGHT REAR COIL 2-RED RIGHT REAR OUTPUT F1 - 15 AMP 3-YELLOW LEFT REAR COIL 4-RED LEFT REAR OUTPUT F2 - 15 AMP 5-YELLOW RIGHT FRONT COIL...
- Page 17 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"...