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HWH 2000 Series Operator's Manual

Computer-controlled precision leveling system for trailers
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OPERATOR'S MANUAL
HWH COMPUTER-CONTROLLED
2000 SERIES PRECISION LEVELING SYSTEM
Four Straight-Acting Power Extend/Power Retract Jacks
Ph: 800/321-3494 (or) 563/724-3396 | Fax: 563/724-3408
AP47804
H H
W
CORPORATION
R
FOR TRAILERS
FEATURING:
Touch Panel Leveling Control
HWH PRECISION LEVELING
R
EXCESS
SLOPE
AUTO
LEVEL
INCORRECT
PROCEDURE
AUTO
MANUAL
STORE
DUMP
STOP
TRAVEL
MODE
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
LEFT
RIGHT
FRONT
FRONT
MANUAL
LEFT
RIGHT
REAR
REAR
ML47805/MP04.4100
06DEC10

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  • Page 1 CORPORATION OPERATOR’S MANUAL HWH COMPUTER-CONTROLLED 2000 SERIES PRECISION LEVELING SYSTEM FOR TRAILERS FEATURING: Touch Panel Leveling Control Four Straight-Acting Power Extend/Power Retract Jacks HWH PRECISION LEVELING LEFT RIGHT EXCESS FRONT FRONT SLOPE AUTO LEVEL INCORRECT MANUAL PROCEDURE AUTO MANUAL 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: Computer Control

    CONTROL IDENTIFICATION 2000 SERIES PRECISION LEVELING SYSTEM COMPUTER-CONTROL "EXCESS SLOPE" Indicator light RETRACT LF JACK Manual button EXTEND LF JACK Manual button INCORRECT PROCEDURE EXTEND RF JACK Manual button Indicator light "MANUAL DUMP" Button HWH PRECISION LEVELING AUTO LEVEL Indicator light...

  • Page 4: 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 to operate. Refer to the vehicle NOTE: This vehicle may be equipped with equipment manufacturer for information about a master power switch.

  • Page 5: Pump Run Time

    OPERATING PROCEDURES INCORRECT PROCEDURE LIGHT There are several situations that prevent the "AUTO LEVEL" The following situations will turn the "INCORRECT or "AUTO STORE" buttons from functioning or that will stop PROCEDURE" light on and flash the front warning the auto leveling process. When these situations occur, lights.
  • Page 6 Trailer must be unhitched from the tow vehicle before The system will first automatically extend the jacks to level leveling. The HWH front jacks may be used to lift the trailer for the vehicle and then extend any remaining jacks for stabilizing.
  • Page 7 1. The HWH master switch must be on to hitch 3. Hitch the trailer to the tow vehicle according to the the trailer and store the jacks.

  • Page 8: Manual Leveling

    Trailer must be unhitched from the tow vehicle before 3. A lit yellow LEVEL light indicates that the side, end or leveling. The HWH front jacks may be used to lift the trailer corner of the trailer is low. If the rear yellow level light is on, for unhitching.
  • Page 9 OPERATING PROCEDURES PUMP RUN TOGGLE SWITCH WARNING! KEEP AWAY FROM WHEELS, DO NOT CRAWL UNDER THE VEHICLE, KEEP A SAFE. DISTANCE IN FRONT AND REAR OF THE VEHICLE. THE VEHICLE MAY DROP AND / OR MOVE FORWARD OR BACKWARD WITHOUT WARNING AS THE VALVE RELEASE IS OPERATED. EXTENDING JACKS RETRACTING JACKS WARNING:...
  • Page 10 SENSING UNIT ADJUSTMENT PRECISION LEVELING SYSTEM SENSING UNIT INFORMATION SENSING UNIT ADJUSTMENT PROCEDURE Power must be on for the leveling system to be able to adjust 1. Refer to the "MANUAL LEVELING" procedures page to the level sensing unit. Refer to the vehicle manufacturer for level the vehicle.
  • Page 11 HYDRAULIC LINE CONNECTION DIAGRAM PRECISION LEVELING SYSTEM WITH STRAIGHT-ACTING, POWER-EXTEND/POWER-RETRACT JACKS * TURN ADJUSTMENT BOLT CLOCKWISE FOR LESS MOVEMENT. TURN LEFT RIGHT ADJUSTMENT BOLT COUNTER-CLOCKWISE FOR MORE MOVEMENT. DO NOT FRONT FRONT TURN ADJUSTMENT BOLT WITHOUT OPENING VALVE 1. CLOSE VALVE 1 WHEN ADJUSTMENT IS COMPLETE.
  • Page 12 HYDRAULIC SCHEMATIC DIAGRAM PRECISION LEVELING 4 - POWER - EXTEND / POWER - RETRACT JACKS PUMP / MANIFOLD ASSEMBLY VALVES 1 AND 2 ARE OPEN FOR MANUAL AND AUTOMATIC JACK 3000 PSI EXTEND - NON PRECISION LEVELING PRESSURE SWITCH VALVE 1 IS OPEN DURING PRECISION LEVELING VALVE 3 IS ONLY OPENED TO RETRACT JACKS...

  • Page 13: Electrical Connection Diagram

    PUMP MANIFOLD / PUMP RUN TOGGLE SWITCH / 12 PIN CN10 CN11 GO - NO G0 LED PANEL BLACK SEE ELECTRICAL CONNECTION DIAGRAM MASTER AND PUMP RELAY CONNECTIONS 6230 GROUND 6232 TO HWH GROUND STUD 6232 TOUCH PANEL HWH PRECISION LEVELING RIGHT LEFT FRONT EXCESS FRONT SLOPE...
  • Page 14 ELECTRICAL CONNECTION DIAGRAM CENTRAL CONTROL MODULE HARNESS ROUTING PAGE 2 OF 2 SEE ELECTRICAL CONNECTION DIAGRAM CENTRAL CONTROL MODULE ROUTING PAGE 1 OF 2 FROM CENTRAL CONTROL MODULE CN1 - BLACK - 8 PIN CONNECTOR LEFT REAR RIGHT REAR I/O MODULE I/O MODULE DO NOT CUT TERMINATING...
  • Page 15 ELECTRICAL CONNECTION DIAGRAM CENTRAL CONTROL MODULE LED - FUSE - WIRE AND CONNECTION INFORMATION - PAGE 1 OF 4 CENTRAL CONTROL MODULE FRONT VIEW PIN 1 PIN 1 PIN 1 PIN 1 BLACK GRAY GRAY GREEN CN10 CN11 PIN 8 PIN 6 PIN 12 PIN 8...
  • Page 16 ELECTRICAL CONNECTION DIAGRAM CENTRAL CONTROL MODULE LED - FUSE - WIRE AND CONNECTION INFORMATION - PAGE 2 OF 4 CENTRAL CONTROL MODULE - END VIEW GRAY BLACK PIN 1 PIN 7 PIN 1 PIN 12 PIN 6 PIN 7 BROWN PIN 4 PIN 1 PIN 12...
  • Page 17 ELECTRICAL CONNECTION DIAGRAM CENTRAL CONTROL MODULE LED - FUSE - WIRE AND CONNECTION INFORMATION - PAGE 3 OF 4 CENTRAL CONTROL MOTHER BOARD 15AMP SWITCHED BATTERY TO CAN MODULES 11-RED SENSING UNIT GROUND +12V 8-RED 9 (NOT USED) REAR 7-RED 10-RED 3000lb RIGHT SIDE USED...
  • Page 18 ELECTRICAL CONNECTION DIAGRAM CENTRAL CONTROL MODULE LED - FUSE - WIRE AND CONNECTION INFORMATION - PAGE 4 OF 4 OUTPUT BOARD FUSE YELLOW LED’S (COILS) RED LED’S (CONTACTS) TOP RING BLACK NOTE: FOR DETAILED INPUT / OUTPUT RELAY DESCRIPTION FUSE BLACK INFORMATION ABOUT PIN CONNECTIONS SEE ELECTRICAL CONNECTION DIAGRAM -...
  • Page 19 120 OHM TERMINATION RESISTOR 6231 6231 DO NOT CUT OR MODIFY HARNESS 6801 6801 8 PIN GRAY CONNECTOR HWH TRUNK HARNESS FOUND ON LEFT FRONT I/O MODULE ONLY DO NOT CUT FRONT SIDE TO SIDE TERMINATING LEVEL SENSING UNIT RESISTOR...
  • Page 20 ELECTRICAL CONNECTION DIAGRAM LEFT FRONT I/O MODULE LED AND CONNECTION INFORMATION - PAGE 2 OF 3 I/O MODULE LEFT FRONT PRESSURE SWITCH WARNING TO VALVE #1 SWITCH BLACK BLACK 0001 WHITE PIN 1 PIN 8 LED VALVE #1 BLACK PIN 5 I/O MODULE BLACK LINK LIGHT...
  • Page 21 ELECTRICAL CONNECTION DIAGRAM RIGHT FRONT I/O MODULE LED AND CONNECTION INFORMATION - PAGE 3 OF 3 I/O MODULE RIGHT FRONT PRESSURE SWITCH WARNING TO VALVE #1 SWITCH BLACK BLACK 0001 WHITE PIN 1 PIN 8 LED VALVE #1 BLACK PIN 5 I/O MODULE BLACK LINK LIGHT...
  • Page 22 SWITCH 120 OHM TERMINATION RESISTOR 6232 6232 DO NOT CUT OR MODIFY HARNESS 6802 6802 HWH TRUNK HARNESS DO NOT CUT REAR SIDE TO SIDE TERMINATING LEVEL SENSING UNIT RESISTOR FROM CENTRAL CONTROL MODULE CN1 - BLACK 8 PIN CONNECTOR...
  • Page 23 ELECTRICAL CONNECTION DIAGRAM RIGHT REAR I/O MODULE LED AND CONNECTION INFORMATION - PAGE 2 OF 3 I/O MODULE RIGHT REAR PRESSURE SWITCH WARNING TO VALVE #1 SWITCH BLACK BLACK 0001 WHITE PIN 1 PIN 8 LED VALVE #1 BLACK PIN 5 I/O MODULE BLACK LINK LIGHT...
  • Page 24 ELECTRICAL CONNECTION DIAGRAM LEFT REAR I/O MODULE LED AND CONNECTION INFORMATION - PAGE 3 OF 3 I/O MODULE LEFT REAR PRESSURE SWITCH WARNING TO VALVE #1 SWITCH BLACK BLACK 0001 WHITE PIN 1 PIN 8 LED VALVE #1 BLACK PIN 5 I/O MODULE BLACK LINK LIGHT...
  • Page 25 FOR 8 PIN GREEN CONNECTOR ON FRONT OF MODULE. 8 PIN GREEN BLACK (6800) BLACK (5555) BLACK (6666) WHITE (6230) TO WHITE (6245) TO HWH GROUND STUD HWH GROUND STUD BLACK (4444) BLACK (8100) FROM GREEN - CN9 SEE MP84.5901 FRONT TO REAR...
  • Page 26 RELAY GROUND WIRES 40 AMP 40 AMP ARE IN THE SAME RING FUSE FUSE TERMINAL AS THE PUMP MANIFOLD SOLENOID TO HWH GROUND STUD VALVE GROUND WIRES 6801 6802 TO FRONT AIR TO REAR AIR NOTE: PUMP RUN TOGGLE SWITCH MODULE...
  • Page 27 STOP TRAVEL MODE LEFT RIGHT REAR REAR WARNING! TO HWH MAIN TRUNK HARNESS UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE. SEE MP84.4513 PIN 1 PIN 4 8 PIN (BLACK) CONNECTOR...
  • Page 28 ELECTRICAL CONNECTION DIAGRAM LEVEL SENSING UNIT INFORMATION PIN AND WIRE INFORMATION IS THE SAME FOR ALL (3) LEVEL SENSING UNITS AND THE CONNECTING HARNESS. THE BROWN 12 PIN SENSING UNIT CONNECTORS FROM THE RIGHT PIN 6 PIN 1 FRONT AND RIGHT REAR I/O MODULES HAVE NUMBERED WIRES.
  • Page 29 ELECTRICAL CONNECTION DIAGRAM MASTER WARNING LIGHT AND RESET SWITCH RESET RESET SWITCH 7550 SWITCH LIGHT 7599 CONTROL SWITCH LIGHT 6230 SUPPLY RESET 6100 WARNING WARNING LIGHT LIGHT 6121 SUPPLY 7699 WARNING LIGHT CONTROL PIN 1 - RED - 6100 - SUPPLY TO RESET SWITCH +12 PIN 2 - BLACK - 7599 - RESET LIGHT CONTROL SWITCHED +12 PIN 6 PIN 3...
  • Page 30 INFORMATION/INSTRUCTION SHEET HYDRAULIC SOLENOID VALVE INDENTIFICATION - MANUAL OPERATIONS - REPLACEMENT REPLACEMENT VALVES WILL HAVE A VALVE RELEASE CAM SOLENOID VALVES WITH CAM RELEASE BREATHER CAP W/NUT DRIVER 1 1/2" DIAMETER SOLENOID VALVE CAM RELEASE VALVE CLOSED Default position THE BREATHER CAP IS NOTE: The cam release may be LOCATED ON THE TOP rotated in any direction on the...

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