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HWH 2000 Series Operator's Manual
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HWH 2000 Series Operator's Manual

Computer-controlled leveling system
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OPERATOR'S MANUAL
HWH COMPUTER-CONTROLLED
ONE OR TWO ROOM EXTENSIONS
(WITH ROOM LOCKS AND AIR SEALS)
AP24574
H
CORPORATION
LEVELING SYSTEM
2000 SERIES
FEATURING:
TOUCH PANEL CONTROL
AIR LEVELING (WITH TAG AXLE)
HWH COMPUTERIZED LEVELING
EXCESS
SLOPE
AIR
NOT IN
PARK/
TRAVEL
BRAKE
MODE
DUMP
EMERGENCY
STOP
TRAVEL
MODE
CAUTION!
RAISE
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
(800) 321-3494 / (563) 724-3396
INTERNET: http: //www.hwhcorp.com
W
H
R
ML25178/MP05.998E
30MAY01

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Summary of Contents for HWH 2000 Series

  • Page 1 CORPORATION OPERATOR’S MANUAL HWH COMPUTER-CONTROLLED LEVELING SYSTEM 2000 SERIES FEATURING: TOUCH PANEL CONTROL AIR LEVELING (WITH TAG AXLE) ONE OR TWO ROOM EXTENSIONS (WITH ROOM LOCKS AND AIR SEALS) HWH COMPUTERIZED LEVELING EXCESS SLOPE NOT IN PARK/ TRAVEL BRAKE MODE...

  • 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 "EXCESS SLOPE" HARD RESET SWITCH LIGHT (SEE HWH LIGHTED RESET SWITCH) "NOT IN PARK" LIGHT MASTER WARNING LIGHT LEVELING SYSTEM ACTIVE LIGHT LOWER FRONT BUTTON "AIR" (ON) BUTTON RAISE FRONT BUTTON HWH COMPUTERIZED LEVELING DUMP LIGHT WARNING LIGHTS...
  • Page 4 MASTER WARNING LIGHT This light is on the dash, separate from the control panels. The light will be on if a HWH low air pressure switch is on, It can be on only if the ignition key is in the "ON" position.

  • 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 The HWH lighted reset switch is located on the shifter panel. A network problem with one room will not inhibit the use of If there is a failure at any time in the HWH CAN network, the the other rooms or leveling system after the reset switch is network will shut down.
  • Page 7 NOT at the proper ride height. A lit "TRAVEL MODE" light indicates that the HWH Leveling System is in the TRAVEL MODE. It does not indicate that the suspension is at ride height or that the coach is ready to travel.
  • Page 8 OPERATING PROCEDURES AUTOMATIC AIR OPERATION (Continued) NOTE: The CAN Network will stay active for 10 minutes EXCESS SLOPE: The system will attempt to level the after releveling the vehicle and then shut down, turning the vehicle for approximately 15 to 20 minutes. After the 15 to 20 minutes, if a LEVEL SENSING light is still on, the "EXCESS touch panel lights OFF.
  • Page 9 OPERATING PROCEDURES MANUAL AIR OPERATION NOTE: The ignition must be in the "ON" or "ACC" panel in conjunction with the yellow LEVEL indicator lights. position to use the "AIR" button. Once the operation Any side to side leveling should be done, if needed, is started, the ignition can be moved to the "OFF"...
  • Page 10 DO NOT FORCE THE ROOM. DO NOT REVERSE DIRECTION OF THE ROOM. BINDING OF ROOM CAN NOTE: Make sure there is adequate clearance to fully CAUSE ROOM DAMAGE. CONTACT HWH CORPORATION extend the room. CUSTOMER SERVICE FOR ASSISTANCE. 2. Insert the KEY into the KEY SWITCH on the room NOTE: The READY TO OPERATE light will flash when extension operator’s panel and turn it to the "ON"...
  • Page 11 30 seconds after the room is fully retracted release the room control switch. NOTE: (FOR ROOMS WITH HWH LOCKS) If the ROOM CONTROL SWITCH is released before the red PUMP ON light goes out, the room may not be properly locked.
  • Page 12 Follow steps 2 and 3 and try pushing the room in. it to the room according to the vehicle manufacturer’s Contact the vehicle manufacturer or HWH Customer instructions. To extend the WINCH STRAP firmly grasp Service at 1-800-321-3494 or 563-724-3396 for assistance.
  • Page 13 OPERATING PROCEDURES FRONT ROOM ROOM EXTENSION OPERATION SEQUENCE ROOM EXTEND SEQUENCE IMPORTANT: MAKE SURE A WINDOW OR DOOR IS 8. When the room lock pins are fully retracted, the room OPEN BEFORE EXTENDING THE ROOM. unlock limit switch arrangement will send a +12 volt signal to the room module.
  • Page 14 OPERATING PROCEDURES FRONT ROOM ROOM EXTENSION OPERATION SEQUENCE ROOM RETRACT SEQUENCE IMPORTANT: MAKE SURE A WINDOW OR DOOR IS 8. When the room lock pins are fully retracted, the room OPEN BEFORE EXTENDING THE ROOM. unlock limit switch arrangement will send a +12 volt signal to the room module.
  • Page 15 OPERATING PROCEDURES BEDROOM ROOM EXTENSION OPERATION SEQUENCE ROOM EXTEND SEQUENCE IMPORTANT: MAKE SURE A WINDOW OR DOOR IS 8. When the room lock pins are fully retracted, the room OPEN BEFORE EXTENDING THE ROOM. unlock limit switch arrangement will send a +12 volt signal to the room module.
  • Page 16 OPERATING PROCEDURES BEDROOM ROOM EXTENSION OPERATION SEQUENCE ROOM RETRACT SEQUENCE IMPORTANT: MAKE SURE A WINDOW OR DOOR IS 8. When the room lock pins are fully retracted, the room OPEN BEFORE EXTENDING THE ROOM. unlock limit switch arrangement will send a +12 volt signal to the room module.

  • Page 17: Maintenance

    OIL LEVEL It is important that all front rooms are fully retracted before FLUID: HWH Specialty Hydraulic Oil is recommended. In an checking the hydraulic oil level. If the coach has a bed slide, emergency Dexron automatic transmission fluid can be used.
  • Page 18 HYDRAULIC LINE CONNECTION DIAGRAM FRONT ROOM - TRAIN DRIVE ROOM EXTENSION - 4 ROOM LOCKS (WITH SYNCHRONIZING CYLINDER) VIEW FROM INSIDE VEHICLE UPPER REAR (R) CYLINDER UPPER FRONT (F) CYLINDER ROD END CAP END BACK PRESSURE VALVE REAR (R) AND FRONT (F) CAP END ROD END INTEGRITY OF BACK PRESS.
  • Page 19 HYDRAULIC LINE CONNECTION DIAGRAM FRONT ROOM - TRAIN DRIVE ROOM EXTENSION - 4 ROOM LOCKS (WITH SYNCHRONIZING CYLINDER) VIEW FROM INSIDE VEHICLE UPPER REAR UPPER FRONT ROOM LOCK ROOM LOCK ROD END ROD END CAP END PRESSURE SW. 3000 P.S.I. VALVE RELEASE NUTS...
  • Page 20 HYDRAULIC LINE CONNECTION DIAGRAM REAR SINGLE CYLINDER "GUIDED" ROOM EXTENSION - 4 ROOM LOCKS BEDROOM SLIDE UPPER UPPER ROOM ROOM LOCK LOCK NOTE: THE ROD END CONNECTION FROM THE MANIFOLD TO THE ROOM CYLINDER IS ALWAYS PRESSURIZED. ROD CONNECTIONS TO ROOM LOCKS WILL NOT BE PRESSURIZED.
  • Page 21 HYDRAULIC FLOW DIAGRAM SINGLE CYLINDER ROOM EXTENSION STATIONARY POSITION FIXED TO VEHICLE CYLINDER CYLINDER CYLINDER EXTEND RETRACT VALVE VALVE CHECK VALVE RETURN PRESSURE MP65.9459 06NOV02...
  • Page 22 HYDRAULIC FLOW DIAGRAM FOUR CYLINDER ROOM EXTENSION WITH SYNCHRONIZING CYLINDER TOP FRONT TOP REAR BOTTOM FRONT BOTTOM REAR MP65.9550 18OCT00...

  • Page 23: Hydraulic Flow Diagram

    HYDRAULIC FLOW DIAGRAM ROOM LOCK STATIONARY POSITION LOCK UNLOCK VALVE VALVE CHECK VALVE RETURN PRESSURE MP65.957C 24APR02...
  • Page 24 AIR LINE CONNECTION DIAGRAM FORETRAVEL WITH TAG AXLE AIR SEAL WET TANK TANK AUX. 12V HEIGHT CONTROL VALVE (3 PLACES) COMPRESSOR FRONT SUSPENSION PROTECTION PRESSURE VALVE REGULATOR PROTECTION VALVE REAR REAR BRAKE FRONT BRAKE MANIFOLD RIGHT TANK LEFT TANK ASSEMBLY BACK DRIVE SUSPENSION...
  • Page 25 AIR LEVEL SCHEMATIC - FORETRAVEL 4 - POINT LEVELING WITH TAG AXLE PRESSURE SWITCHES FRONT AND DRIVE AXLE PROTECTION SEE AIR VALVE COMPRESSOR FRONT HEIGHT CONTROL VALVE DIAGRAM (HCV) FRONT MANIFOLD ASSEMBLY FRONT BRAKE PRESSURE LEFT TANK SWITCH 10 P.S.I. TANK TRAV.
  • Page 26 FRONT AIR SOLENOID MANIFOLD CONNECTIONS 6 VALVE WITH TWO PRESSURE SWITCHES LINES FROM HEIGHT CONTROL VALVES - TWO MAY BE TEE’D 3.400" TOGETHER IF ONE HCV IS USED. REAR VIEW LINE TO LF LINE TO RF AIR BAG AIR BAG EXHAUST EXHAUST PORT...
  • Page 27 REAR AIR SOLENOID MANIFOLD CONNECTIONS 6 VALVE WITH ONE PRESSURE SWITCH LINES FROM HEIGHT CONTROL VALVES - TWO MAY BE TEE’D 3.400" TOGETHER IF ONE HCV IS USED. REAR VIEW LINE TO LR LINE TO RR AIR BAG AIR BAG EXHAUST EXHAUST ALL AIR SOLENOID VALVES...
  • Page 28 TAG AIR SOLENOID MANIFOLD CONNECTIONS 6 VALVE WITH NO PRESSURE SWITCHES LINES FROM HEIGHT CONTROL VALVES - TWO MAY BE TEE’D 3.400" TOGETHER IF ONE HCV IS USED. REAR VIEW EXHAUST EXHAUST ALL AIR SOLENOID VALVES PORT PORT ARE +12V OPERATED NORMALLY CLOSED VALVES LINE TO RR LINE TO LR...
  • Page 29 AT APPROXIMATELY 90 P.S.I. IF THE VEHICLE IS EQUIPPED WITH AN AIR AWNING THE COACH AIR SUPPLY WILL BE MAINTAINED AT 110 P.S.I. SOLENOID (3) CLOSES WITH A +12V SIGNAL FROM THE HWH CONTROL SYSTEM. THIS ALLOWS THE HWH AUXILIARY AIR COMPRESSOR TO BE USED FOR AIR LEVELING ONLY.
  • Page 30 SOLENOID (1) DUMPS WATER OUT OF FILTER WHEN COMPRESSOR IS OFF. SOLENOID (2) ALLOWS COACH AIR TO BE PUMPED UP FROM AUX. COMPRESSOR. SUSPENSION HWH ROOM CHECK VALVE BY SOLENOID (2) ALLOWS AIR SEAL COACH AIR TO LEVELING MANIFOLDS OR OTHER AND TO ACC.
  • Page 31 AIR SEAL CONNECTION DIAGRAM AIR SEAL AND RAIL ASSEMBLY *NOTE: O.E.M. MAY DETAIL A TEE BOTH CONNECTORS TOGETHER ELECTRICALLY. +12 VOLT CONNECTING 3-WAY AIR VALVE 3-WAY HOSE VACUUM WHEN THERE IS NO +12 POWER TO THE AIR VALVES CONSTANT +12 VOLT NORMALLY AIR PRESSURE IS SUPPLIED TO CLOSED AIR VALVE THE AIR SEAL FROM THE AIR...
  • Page 32 ELECTRICAL CONNECTION DIAGRAM FORETRAVEL 2000 SERIES CAN SYSTEM 2 ROOM EXTENSIONS AND AIR LEVELING W/TAG AXLE TAG DUMP FRONT ROOM MASTER TO IGNITION HWH COMPUTERIZED LEVELING LEVELING SYSTEM EXCESS SWITCH CONTROL PANEL WARNING TO IGNITION SLOPE NOT IN PARK TRAVEL...
  • Page 33 ELECTRICAL CONNECTION DIAGRAM CENTRAL CONTROL / ROOM 1 MODULE CONNECTION INFORMATION PAGE 1 OF 3 FRONT VIEW SIDE VIEW TOP RING PAGE 1 OF 3 CN98 PIN 1 PIN 1 PIN 4 PIN 12 MIDDLE RING PAGE 2 OF 3 BOTTOM RING PAGE 3 OF 3 WIRE...
  • Page 34 ELECTRICAL CONNECTION DIAGRAM CENTRAL CONTROL / ROOM 1 MODULE CONNECTION INFORMATION PAGE 2 OF 3 FRONT VIEW SIDE VIEW TOP RING PAGE 1 OF 3 PIN 8 PIN 6 PIN 12 PIN 8 PIN 1 PIN 1 PIN 1 PIN 1 MIDDLE RING PAGE 2 OF 3 CN99...
  • Page 35 ELECTRICAL CONNECTION DIAGRAM CENTRAL CONTROL / ROOM 1 MODULE CONNECTION INFORMATION PAGE 3 OF 3 FRONT VIEW SIDE VIEW TOP RING PAGE 1 OF 3 PIN 8 PIN 8 PIN 12 PIN 12 PIN 1 PIN 1 PIN 1 PIN 1 MIDDLE RING PAGE 2 OF 3 BOTTOM RING...
  • Page 36 ELECTRICAL CONNECTION DIAGRAM LED - FUSE LOCATION AND DESCRIPTION CENTRAL CONTROL / ROOM 1 MODULE (TOP RING) PAGE 1 OF 3 ROOM 1 AND 2 OUTPUT BOARD FUSE TOP RING CN1 NOTE: FOR DETAILED INPUT / OUTPUT INFORMATION ABOUT PIN CONNECTIONS RELAY DESCRIPTION FUSE SEE ELECTRICAL CONNECTION DIAGRAM -...
  • Page 37 ELECTRICAL CONNECTION DIAGRAM LED - FUSE LOCATION AND DESCRIPTION CENTRAL CONTROL / ROOM 1 MODULE (MIDDLE RING) PAGE 2A OF 3 CENTRAL CONTROL MOTHER BOARD 11-RED PARK BRAKE 8-RED 9-NOT USED NEUTRAL 7-RED 10-RED HOLD LINK LIGHT PRESS SW 4-RED HOUSE BATTERY - IN 15AMP SWITCHED BATTERY FROM...
  • Page 38 ELECTRICAL CONNECTION DIAGRAM LED - FUSE LOCATION AND DESCRIPTION CENTRAL CONTROL / ROOM 1 MODULE (MIDDLE RING) PAGE 2B OF 3 CENTRAL CONTROL MOTHER BOARD 15AMP SWITCHED BATTERY TO CAN MODULES 11-RED SENSING UNIT PARK BRAKE +12V 8-RED 9 (NOT USED) REAR NEUTRAL 7-RED...
  • Page 39 ELECTRICAL CONNECTION DIAGRAM LED - FUSE LOCATION AND DESCRIPTION CENTRAL CONTROL / ROOM 1 MODULE (BOTTOM RING) PAGE 3 OF 3 ROOM 1 I/O BOARD 28-RED SYNC CYL PRESS SW 27-NOT USED 1-RED EXTEND 2-RED RETRACT NOT USED 6-YELLOW FRONT ROOM OUT 30-NOT USED NOT USED 9-GREEN UPPER REAR ROOM IN...
  • Page 40 ELECTRICAL CONNECTION DIAGRAM FRONT AIR MODULE CONNECTION INFORMATION PAGE 1 OF 2 FRONT VIEW SIDE VIEW CN98 TOP RING BROWN BLACK PAGE 1 OF 2 PIN 12 PIN 4 PIN 8 BOTTOM RING PIN 1 PIN 1 PIN 1 PAGE 2 OF 2 WIRE WIRE PIN #...
  • Page 41 ELECTRICAL CONNECTION DIAGRAM FRONT AIR MODULE CONNECTION INFORMATION PAGE 2 OF 2 FRONT VIEW SIDE VIEW TOP RING PIN 8 PIN 8 PIN 12 PIN 12 PAGE 1 OF 2 PIN 1 PIN 1 PIN 1 PIN 1 BOTTOM RING CN10 CN12 CN11...
  • Page 42 ELECTRICAL CONNECTION DIAGRAM LED - FUSE LOCATION AND DESCRIPTION FRONT AIR MODULE (TOP RING) PAGE 1 OF 2 AIR LEVEL OUTPUT BOARD FUSE TOP RING BROWN NOTE: FOR DETAILED INPUT / OUTPUT INFORMATION ABOUT PIN CONNECTIONS RELAY DESCRIPTION FUSE BROWN SEE ELECTRICAL CONNECTION DIAGRAM - FRONT AIR MODULE CONNECTION 3-RED...
  • Page 43 ELECTRICAL CONNECTION DIAGRAM LED - FUSE LOCATION AND DESCRIPTION FRONT AIR MODULE (BOTTOM RING) PAGE 2 OF 2 AIR I/O BOARD 28-RED TAG DUMP SWITCH 1-NOT USED 2-NOT USED 3-NOT USED 4-NOT USED 5-NOT USED 6-NOT USED 7-NOT USED 8-NOT USED 9-GREEN LEFT FRONT PRESS SW LINK LIGHT 10-GREEN RIGHT FRONT PRESS SW...
  • Page 44 ELECTRICAL CONNECTION DIAGRAM REAR AIR / ROOM 2 MODULE CONNECTION INFORMATION PAGE 1 OF 2 FRONT VIEW SIDE VIEW TOP RING GRAY PAGE 1 OF 2 BROWN BLACK PIN 8 PIN 8 PIN 12 PIN 12 PIN 1 PIN 1 PIN 1 PIN 1 MIDDLE RING...
  • Page 45 ELECTRICAL CONNECTION DIAGRAM REAR AIR / ROOM 2 MODULE CONNECTION INFORMATION PAGE 2 OF 2 FRONT VIEW SIDE VIEW TOP RING PAGE 1 OF 2 PIN 8 PIN 8 PIN 12 PIN 12 PIN 1 PIN 1 PIN 1 PIN 1 MIDDLE RING PAGE 1 OF 2 BOTTOM RING...
  • Page 46 ELECTRICAL CONNECTION DIAGRAM LED - FUSE LOCATION AND DESCRIPTION REAR AIR / ROOM 2 MODULE (TOP RING) PAGE 1 OF 3 AIR SEAL OUTPUT BOARD RELAY DESCRIPTION FUSE BROWN 1-YELLOW VACUUM VALVE (NOT USED) FUSE 2-RED VACUUM VALVE (NOT USED) F2-5 AMP PIN 2 3-RED...
  • Page 47 ELECTRICAL CONNECTION DIAGRAM LED - FUSE LOCATION AND DESCRIPTION REAR AIR / ROOM 2 MODULE (MIDDLE RING) PAGE 2 OF 3 REAR AIR I/O BOARD NOT USED 8-GREEN SYSTEM PRESS SW LINK LIGHT 3AMP SW BATT - OUT 23-NOT USED 2AMP PUMP 2AMP READY NOT USED...
  • Page 48 ELECTRICAL CONNECTION DIAGRAM LED - FUSE LOCATION AND DESCRIPTION REAR AIR / ROOM 2 MODULE (BOTTOM RING) PAGE 3 OF 3 ROOM 2 I/O BOARD 28-NOT USED 27-NOT USED 1-RED EXTEND 2-RED RETRACT 3-NOT USED 4-NOT USED 5-NOT USED 6-YELLOW FRONT ROOM OUT 7-NOT USED 30-NOT USED 8-NOT USED...
  • Page 49 ELECTRICAL CONNECTION DIAGRAM ROOM EXTENSION PANEL FRONT VIEW BACK VIEW PUMP ON READY TO 7631 OPERATE ROOM EXTENSION EXTEND CORPORATION 7501 6806 CAUTION! UNDERSTAND OPERATOR’S MANUAL BEFORE 7531 7502 USING. KEEP PEOPLE AND OBSTRUCTIONS RETRACT CLEAR OF ROOM WHEN OPERATING. 7631 7511 6805...
  • Page 50 ELECTRICAL CONNECTION DIAGRAM AUXILIARY COMPRESSOR CONNECTIONS DASH SWITCH AND WIRING PRESSURE SWITCH TO 3-PIN PACKARD PLUG OPEN AT 90 P.S.I. BY FORETRAVEL CLOSE AT 70 - 80 P.S.I. COMPRESSOR 9710 DIODE HARNESS FROM 9711 FRONT AIR 6100 MODULE FUSE +12 SIGNAL - 9700 5 AMP SOLENOID 3 NORMALLY...
  • Page 51 ELECTRICAL CONNECTION DIAGRAM MASTER WARNING LIGHT RELAY AND LIGHT BY O.E.M. RELAY INFORMATION WARNING LIGHT SUPPLY +12 IGN 6121 WARNING LIGHT CONTROL SW GND 7699 MASTER WARNING LIGHT MP85.890C 12FEB02...
  • Page 52 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"...