1. Manuals
  2. Brands
  3. HWH Manuals
  4. Laser Level
  5. 725 SERIES
  6. Operator's manual

HWH 725 Operator's Manual

Computer-controlled 725 series leveling system
Hide thumbs Also See for 725:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Service Manual
OPERATOR'S MANUAL
HWH COMPUTER-CONTROLLED
725 SERIES LEVELING SYSTEM
Ph: 800/321-3494 (or) 563/724-3396 | Fax: 563/724-3408
AP49234
H H
W
CORPORATION
R
FEATURING:
Touch Panel Leveling Control
BI-AXIS Hydraulic Leveling
R
Straight-Acting Jacks
Auxiliary Hand Pump
Canopy Lift
HWH COMPUTERIZED LEVELING
R
EXCESS
SLOPE
EXTEND
AUTO
LEVEL
NOT IN
PARK/
BRAKE
AUTO
STORE
RETRACT
TRAVEL
MODE
CANCEL
WARNING!
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
ML49233/MP04.3380
23SEP11

Advertisement

Table of Contents
loading

Related Manuals for HWH 725

Summary of Contents for HWH 725

  • Page 1 CORPORATION OPERATOR’S MANUAL HWH COMPUTER-CONTROLLED 725 SERIES LEVELING SYSTEM FEATURING: Touch Panel Leveling Control BI-AXIS Hydraulic Leveling Straight-Acting Jacks Auxiliary Hand Pump Canopy Lift HWH COMPUTERIZED LEVELING EXCESS SLOPE EXTEND EXTEND AUTO LEVEL NOT IN MANUAL PARK/ BRAKE AUTO STORE...

  • 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 Functions

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

  • Page 4: Control Identification

    CONTROL IDENTIFICATION CANOPY LIFT OPERATOR’S PANEL CORPORATION HYDRAULIC ROOM EXTENSION EXTEND LIFT 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 LIFT LIFT CONTROL SWITCH: The LIFT CONTROL SWITCH is CONTROL SWITCH and the leveling system touch panel.

  • 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

    If parking on soft ground or asphalt paving, wood blocks or pads must be placed under the jacks. The HWH or OEM supplied master power switch must be on for the leveling system or canopy to operate. PREPARATION FOR TRAVEL...
  • Page 7 When both front pressure switches are on, the system turns the The HWH front jacks may be used to lift the trailer for pump and front valves off. unhitching. Use the front UP ARROW button on the HWH touch panel to extend the front jacks.
  • Page 8 NOTE: If the trailer is equipped with an air suspension, the HWH canopy lift control panel key switch are on if the it is recommended to not connect the tow vehicle air "AUTO LEVEL"...
  • Page 9 Any jack not used for leveling can be extended to the ground. This provides additional stability against wind and activity in The HWH front jacks may be used to lift the trailer for the trailer. Jacks used to stabilize the trailer after leveling is unhitching.
  • Page 10 OPERATING PROCEDURES CANOPY LIFT RAISE PROCEDURE WARNING: KEEP PEOPLE AND OBSTRUCTIONS NOTE: Releasing the LIFT CONTROL SWITCH will halt CLEAR OF CANOPY WHEN OPERATING. the operation of the lift. NOTE: Make sure there is adequate clearance to fully IMPORTANT: AS THE CANOPY BECOMES FULLY extend the canopy.
  • Page 11 OPERATING PROCEDURES AUXILIARY HAND PUMP OPERATION EXTENDING JACKS LEVELING SYSTEM To extend jacks use the valve release cam to open the appropriate valve(s). WARNING: KEEP PEOPLE AND OBJECTS CLEAR OF TRAILER WHEN OPERATING THE Operate hand pump in a fore and aft motion to extend LEVELING SYSTEM.
  • Page 12 OPERATING PROCEDURES AUXILIARY HAND PUMP OPERATION LIFTING THE CANOPY CANOPY LIFT Move the canopy lift valve release cam to the valve open position. WARNING: KEEP PEOPLE CLEAR OF THE TRAILER WHEN OPERATING THE CANOPY LIFT. Operate the hand pump handle in a fore and aft motion until the canopy is fully lifted.

  • Page 13: Maintenance

    See ML47149 for proper maintenance of all jacks. CANOPY LIFT The HWH lift mechanisms need no maintenance. Any visible mechanism can be kept clean by washing DO NOT grease or lubricate any parts of the HWH with water. mechanism. VISUAL INSPECTION...
  • Page 14 To help reduce the corrosion of jacks after exposure to anti- continue to absorb moisture from the air even after they icing / deicing agents, thoroughly wash jacks with warm have dried. This can facilitate corrosion of metallic soapy water. components, such as HWH jacks. MP44.0509 21NOV16...
  • Page 15 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...
  • Page 16 HYDRAULIC LINE CONNECTION DIAGRAM 4 - FIXED JACKS REMOTE CANOPY LIFT MANIFOLD FRONT OF TRAILER RIGHT FRONT LEFT FRONT RIGHT REAR JACK LEFT REAR EXTEND VALVES (4) PRESSURE SWITCH IS SET AT 2000 PSI LEFT FRONT RIGHT FRONT JACK JACK JACK RETRACT VALVES (4)
  • Page 17 HYDRAULIC LINE CONNECTION DIAGRAM 4 CYLINDER CANOPY LIFT SIDE VIEW OF MAIN POWER UNIT CANOPY ROD END ROD END CANOPY LIFT LIFT CYLINDER CYLINDER PRESSURE CAP END CAP END RETURN CANOPY LIFT VALVE CANOPY LOWER VALVE CANOPY LIFT MANIFOLD FRONT VIEW CANOPY ROD END ROD END...
  • Page 18 ELECTRICAL CONNECTION DIAGRAM 725 SERIES SINGLE STEP LEVELING SYSTEM MAIN I/O MODULE HARNESS ROUTING PRESSURE PRESSURE SWITCH SWITCH WARNING WARNING SWITCH SWITCH 6235 2000 1000 6235 1200 2200 TOUCH PANEL SEE ELECTRICAL CONNECTION DIAGRAM HWH COMPUTERIZED LEVELING LEVELING SYSTEM HYDRAULIC MANIFOLD...
  • Page 19 ELECTRICAL CONNECTION DIAGRAM MULTIPLEXED INPUT/OUTPUT MODULE LED AND WIRE/CONNECTION INFORMATION A LIT RED LED INDICATES THERE SHOULD BE RIGHT FRONT JACK EXTEND +12 VOLTS ON THE CORRESPONDING WIRE. LEFT FRONT JACK EXTEND RIGHT REAR JACK EXTEND LEFT REAR JACK EXTEND LINK LIGHT LINK LIGHT: LINK LIGHT FLASHING INDICATES PROPER COMMUNICATION...
  • Page 20 EXTEND VALVES UNDER I/O MODULE 8100 SEE ELECTRICAL CONNECTION DIAGRAM 725 SERIES SINGLE STEP LEVELING SYSTEM MAIN I/O MODULE HARNESS ROUTING NOTE: MOTOR, RELAY AND SYSTEM GROUNDS ARE NOT SHOWN. SEE ELECTRICAL CONNECTION DIAGRAM MASTER AND PUMP RELAY WIRING FOR CONNECTION INFORMATION.
  • Page 21 ELECTRICAL CONNECTION DIAGRAM 725 SERIES LEVELING SYSTEM TOUCH PANEL CONNECTIONS HWH COMPUTERIZED LEVELING EXCESS SLOPE EXTEND EXTEND AUTO LEVEL NOT IN MANUAL PARK/ BRAKE AUTO STORE RETRACT RETRACT TRAVEL MODE CANCEL WARNING! UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
  • Page 22 ELECTRICAL CONNECTION DIAGRAM CANOPY LIFT CANOPY LIFT CONTROL PANEL CANOPY LIFT CONTROL PANEL FRONT VIEW REAR VIEW CORPORATION HYDRAULIC ROOM EXTENSION EXTEND 5000 CAUTION! UNDERSTAND OPERATOR’S MANUAL BEFORE USING. KEEP PEOPLE AND OBSTRUCTIONS RETRACT CLEAR OF ROOM WHEN OPERATING. 8601 6810 UML CONNECTORS PIN 1...
  • Page 23 ELECTRICAL CONNECTION DIAGRAM MASTER AND PUMP RELAYS I/O MODULE SOLENOID VALVE WIRING NOT SHOWN 6230 (WHITE) SEE ELECTRICAL CONNECTION 6230 (WHITE) DIAGRAM - MAIN I/O MODULE HARNESS ROUTING 6230 8600 TO GROUND (WHITE) (BLACK) 6800 STUD ON SIDE OF PUMP 6230 (WHITE) FUSE...
  • Page 24 ELECTRICAL CONNECTION DIAGRAM LEVEL SENSING UNIT SEE WIRE LEGEND BELOW SEE WIRE LEGEND BELOW SEE ELECTRICAL CONNECTION DIAGRAM - 725 SERIES SINGLE STEP LEVELING SYSTEM YELLOW LEDS MOUNTING / ADJUSTMENT SCREWS (3) ELECTRICAL CONNECTION DIAGRAM BOTTOM VIEW OF MULTIPLEXED INPUT/...
  • Page 25 Valve size and voltage are still factors to be valve. Pushing the cam in the considered when replacing any HWH hydraulic wrong direction could damage solenoid valve. Replace a small style 12 volt the valve.

Table of Contents