HWH 725 SERIES Operator'S Manual Download Page 1

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OPERATOR’S MANUAL

ML49233/MP04.3380

23SEP11

Touch Panel Leveling Control

BI-AXIS Hydraulic Leveling

FEATURING:

HWH CORPORATION

(On I-80, Exit 267 South)

2096 Moscow Road | Moscow, Iowa 52760

Ph: 800/321-3494 (or) 563/724-3396 | Fax: 563/724-3408

www.hwh.com

725 SERIES LEVELING SYSTEM

HWH COMPUTER-CONTROLLED

Straight-Acting Jacks

AP49234

RETRACT

EXTEND

HWH COMPUTERIZED LEVELING

SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.

UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES

CANCEL

STORE

AUTO

LEVEL

TRAVEL

BRAKE

MODE

WARNING!

EXCESS

SLOPE

NOT IN

PARK/

MANUAL

RETRACT

EXTEND

CORPORATION

Auxiliary Hand Pump

Canopy Lift

Summary of Contents for 725 SERIES

Page 1: ... 724 3408 www hwh com 725 SERIES LEVELING SYSTEM HWH COMPUTER CONTROLLED R Straight Acting Jacks AP49234 R RETRACT EXTEND HWH COMPUTERIZED LEVELING SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE UNDERSTAND OPERATOR S MANUAL BEFORE USING BLOCK FRAME AND TIRES CANCEL STORE AUTO AUTO LEVEL TRAVEL BRAKE MODE WARNING EXCESS SLOPE NOT IN PARK R MANUAL RETRACT EXTEND CORPORATION W H H R Auxilia...

Page 2: ...fect or problem please do the following 563 724 3396 OR 800 321 3494 Give your name and coach was purchased or the date of system installation Notify the dealership where you purchased the vehicle or had the leveling system installed Dealership management people are in the best position to resolve the problem quickly If the dealer has difficulty solving the problem he should immediately contact th...

Page 3: ...indicators are jacks down WARNING lights will retract their respective jack pairs to lower the vehicle extend their respective jack pairs to lift the vehicle RETRACT BUTTONS DOWN ARROWS EXTEND BUTTONS UP ARROWS CONTROL BUTTONS WARNING LIGHTS four jacks at the same time AUTO STORE BUTTON AUTO LEVEL BUTTON any leveling system operation CANCEL BUTTON This light will flash during This light will flash...

Page 4: ...OL SWITCH The LIFT CONTROL SWITCH is a two position momentary switch Pressing the switch in the EXTEND POSITION will raise the canopy Pressing the switch in the RETRACT POSITION will lower the canopy Releasing the LIFT CONTROL SWITCH will halt the operation of the lift CONTROL SWITCH and the leveling system touch panel When the KEY SWITCH is in the ON POSITION the lift and the leveling system can ...

Page 5: ... pump run time programs will also vary Leveling systems and room extensions that are not controlled by a system processor have no pump run time protection thirty minutes Pump motors used with HWH leveling systems and room extension systems come in 3 different diameters 3 3 7 and 4 5 Contact the vehicle manufacturer or HWH for help with identifying the motor size runs for more than four minutes wit...

Page 6: ...Y HAZARD DO NOT RELY SOLELY UPON WARNING AND OR THE VEHICLE AND CREATE A DRIVING EXTENDED CAN CAUSE SEVERE DAMAGE TO THE JACKS MOVING THE VEHICLE WITH THE LEVELING JACKS VEHICLE IS EQUIPPED WITH STRAIGHT ACTING JACKS THE GROUND OR IN THE EXTEND POSITION THIS THE LEVELING JACKS ARE STILL IN CONTACT WITH DO NOT MOVE THE VEHICLE WHILE WARNING Maintain adequate clearance in all directions for vehicle ...

Page 7: ...ll turn the pump on and open the valves for both front jacks When If at this time a yellow level light is on the system will automatically repeat the complete leveling and stabilizing sequence The repeat sequence will only happen if a yellow level light is on at the end of the initial leveling and stabilizing sequence If a yellow level light is still on after the repeat sequence the system will tu...

Page 8: ...ULLY RETRACTED INTO WARNING LIGHTS IT IS THE OPERATOR S RESPONSIBILITY TO CREATE A DRIVING HAZARD DO NOT RELY SOLELY UPON SEVERE DAMAGE TO THE JACKS AND OR THE TRAILER AND WITH THE LEVELING JACKS EXTENDED CAN CAUSE WITH STRAIGHT ACTING JACKS MOVING THE TRAILER OR IN THE EXTEND POSITION THIS TRAILER IS EQUIPPED LEVELING JACKS ARE STILL IN CONTACT WITH THE GROUND DO NOT MOVE THE TRAILER WHILE THE TH...

Page 9: ...under the jacks if the ground will not support the trailer The vehicle may be leveled using the manual EXTEND UP ARROW buttons or RETRACT DOWN ARROW buttons on the right half of the panel If a yellow LEVEL SENSING light is on that side end or corner of the vehicle is low It is best to level the vehicle side to side first if needed before front to rear Jacks will extend or retract in pairs to raise...

Page 10: ... RETRACT POSITION for more than ten seconds after the Do not hold the LIFT CONTROL SWITCH in CONTROL SWITCH IMMEDIATELY canopy is fully retracted or stops moving IMPORTANT IF EITHER SIDE 4 Turn the KEY SWITCH to the OFF POSITION 6 If the room will not retract see the MANUAL CANOPY LOWER PROCEDURE OPERATING PROCEDURES 5 Remove the KEY to prevent undesired operation of the lift IMPORTANT AS THE CANO...

Page 11: ...ks are extended in pairs both front both rear right front right rear or left front left rear Return valve release cams to valve closed position when finished RETRACTING JACKS WARNING ONLY USE THE RETRACT VALVE CAM RELEASES IF HITCHING THE TRAILER TO THE TOW VEHICLE OR IF THE TRAILER IS SUPPORTED BY THE AUXILIARY MANUAL JACK S ALLOW AMPLE ROOM FOR THE VEHICLE TO MOVE IN ANY DIRECTION WHEN A JACK MA...

Page 12: ...MP HANDLE SIDE VIEW OF JACK MANIFOLD POWER UNIT more pressure handle in a fore and aft motion to the valve open position Operate the hand pump handle in a fore and aft motion until the canopy is fully lifted The canopy safety locks should snap into place as the canopy becomes fully lifted LOCK RELEASE HANDLE PULL UP TO RELEASE PULL UP TO RELEASE CANOPY RAISED POSITION POSITION LOCK RELEASED LOWERI...

Page 13: ...ccording to the SYSTEM OPERATION Section Note any abnormal operation Review the JACK RETRACTION Section Make sure the jacks will fully retract to the STORE position Jacks should not interfere with any of the coach when in the STORE All maintenance should be done as part of the normal servicing of the coach clean from weathering light is important position FLUID HWH Specialty Hydraulic Oil is recom...

Page 14: ... dried This can facilitate corrosion of metallic Anti icing deicing agents when splashed on your vehicle continue to absorb moisture from the air even after they icing deicing agents thoroughly wash jacks with warm To help reduce the corrosion of jacks after exposure to anti soapy water ...

Page 15: ...ING THE SENSING UNIT AFTER ADJUSTING THE SENSING UNIT BUMP THE SENSING UNIT TO SEE THAT IT IS SETTLED TIGHT AGAINST ALL THREE SCREW HEADS AND STILL INDICATES THAT THE UNIT IS LEVEL Level the vehicle by placing a bubble level in the center of the freezer floor or upon whichever surface within the vehicle that is to be level It is best if the level is placed close to the mounting area of the sensing...

Page 16: ...NT RIGHT FRONT LEFT REAR RIGHT REAR LEFT REAR RIGHT REAR LEFT FRONT RIGHT FRONT RETRACT PRESSURE RETURN SEE HYDRAULIC LINE CONNECTION DIAGRAM TO REMOTE CANOPY LIFT MANIFOLD JACK VALVES 4 EXTEND VALVES 4 JACK JACK JACK JACK JACK 4 CYLINDER CANOPY LIFT PRESSURE SWITCH IS SET AT 2000 PSI NOTE PUMP RELIEF IS SET AT 2500 PSI ...

Page 17: ...ER LIFT CAP END ROD END B A B A ROD END CAP END PRESSURE CAP END B CAP END B ROD END A ROD END A CANOPY LIFT MANIFOLD FRONT VIEW D E C RETURN VALVE LIFT CANOPY SYNCHRONIZING CYLINDER ROD END HOSES A FROM CANOPY LIFT CYLINDERS TO SYNCHRONIZING CYLINDER CAP END HOSES B MUST BE THE SAME MUST BE HIGH PRESSURE HOSE OF THE SAME LENGTH AND DIAMETER LENGTH AND DIAMETER VALVE CANOPY LOWER ...

Page 18: ...ND RETRACT AUTO STORE LEVEL AUTO WARNING BRAKE TRAVEL CANCEL MODE PARK NOT IN EXCESS R SLOPE MANUAL RETRACT EXTEND SEE ELECTRICAL CONNECTION DIAGRAM LEVELING SYSTEM HYDRAULIC MANIFOLD SEE ELECTRICAL CONNECTION DIAGRAM SENSING UNIT DO NOT CUT TERMINATING RESISTOR DO NOT CUT TERMINATING RESISTOR MULTIPLEXED INPUT OUTPUT MODULE SEE ELECTRICAL CONNECTION DIAGRAM 8100 MAIN I O MODULE HARNESS ROUTING EL...

Page 19: ...6231 SWITCHED GROUND FROM SENSING UNIT REAR 0400 BLACK C4 SWITCHED GROUND FROM LEFT REAR JACK WARNING SWITCH 4000 BLACK C5 NO CONNECTION C6 AND C7 SWITCHED GROUND FROM SENSING UNIT RIGHT SIDE 0300 BLACK C8 D1 6810 12 VOLT POWER FOR I O MODULE FROM LIFT CONTROL PANEL GROUND FOR JACK WARNING SWITCHES WHITE D2 6235 NO CONNECTION D3 SWITCHED GROUND FROM LEFT FRONT JACK WARNING SWITCH 1000 BLACK D4 SWI...

Page 20: ...500 RIGHT FRONT JACK RETRACT 3400 RIGHT REAR JACK EXTEND 3500 RIGHT REAR JACK RETRACT 4400 LEFT REAR JACK EXTEND 4500 LEFT REAR JACK RETRACT NOTE MOTOR RELAY AND SYSTEM GROUNDS ARE NOT SHOWN SEE ELECTRICAL CONNECTION DIAGRAM MASTER AND PUMP RELAY WIRING FOR CONNECTION INFORMATION SEE ELECTRICAL CONNECTION DIAGRAM 725 SERIES SINGLE STEP LEVELING SYSTEM MAIN I O MODULE HARNESS ROUTING 8100 LR RET RE...

Page 21: ...RNING BRAKE TRAVEL CANCEL MODE PARK NOT IN EXCESS R SLOPE MANUAL RETRACT EXTEND YELLOW GREEN WIRE COLOR WHITE 5 PIN MTA CONNECTOR 3 4 5 RED PIN 2 1 6800 6230 NUMBER WIRE 12 VOLTS FROM INPUT OUTPUT MODULE CAN SHIELD GROUND FROM CONTROL BOX WIRE DESCRIPTION AND FUNCTION CAN LOW CAN HIGH MP84 3331 PIN 4 PIN 1 2 6 4 3 5 6 PIN UML CONNECTOR 1 SWITCHED GROUND FOR MASTER WARNING BLACK 7699 NO CONNECTION ...

Page 22: ... 3 PIN 4 PIN 6 PIN 4 PIN 1 PIN 3 PIN 6 UML CONNECTORS PIN 1 PIN 2 PIN 3 PIN 4 PIN 5 PIN 6 5100 6125 NO CONNECTION 6810 5000 8601 SW 12 CANOPY LOWER 12 BATTERY FROM MASTER RELAY SW 12 TO I O MODULE SW 12 CANOPY LIFT SW 12 PUMP REQUEST SEE ELECTRICAL CONNECTION DIAGRAM MAIN I O MODULE HARNESS ROUTING B A 8601 6800 MASTER AND PUMP RELAYS SEE ELECTRICAL CONNECTION DIAGRAM FUSE 15 AMP 6125 P E D A B P ...

Page 23: ...Y CONTROL GROUND MASTER RELAY MASTER RELAY CONTROL FUSE 40 AMP FUSE 15 AMP TO 12 BATTERY MASTER RELAY CONNECTION DIAGRAM SEE ELECTRICAL CANOPY LIFT 8500 BLACK 6800 WHITE 6230 BLACK 8600 WHITE 6230 PUMP RELAY MOTOR PUMP TO GROUND STUD ON SIDE OF PUMP 6230 WHITE 6230 WHITE SEE ELECTRICAL CONNECTION DIAGRAM MAIN I O MODULE HARNESS ROUTING 6125 ...

Page 24: ...RONT OF VEHICLE LED B LEFT SIDE OF VEHICLE DRIVER SIDE LED C REAR OF VEHICLE LED D RIGHT SIDE OF VEHICLE PASSENGER SIDE WIRE LEGEND PIN 1 ORANGE BLACK 0400 SWITCHED GROUND WHEN REAR IS LOW PIN 2 WHITE WHITE 6231 GROUND FROM SENSING UNIT PIN 3 RED RED 6121 12 VOLT FOR SENSING UNIT PIN 4 YELLOW BLACK 0100 SWITCHED GROUND WHEN LEFT SIDE IS LOW PIN 5 BLACK BLACK 0200 SWITCHED GROUND WHEN FRONT IS LOW ...

Page 25: ... a small style 12 volt valve Replace considered when replacing any HWH hydraulic solenoid valve Replace a small style 12 volt Valve size and voltage are still factors to be replacements for all previous styles of The cam release style valves are direct HWH hydraulic solenoid valves 12 volt valve This is true for 24 volt valves also turn out the old valve confirm that no o ring stress on the wires ...

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