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ML60078/MP84.9999

16APR19

RELEASE

NUT

NOTE: When opening the
valve DO NOT turn the valve
release nut more than 4 and
1/2 turns counter clockwise.

OIL LEVEL

1/4" NUT DRIVER

THE BREATHER CAP IS
LOCATED ON THE TOP

TOP OF THE RESERVOIR. BEFORE RETURNING THE

BREATHER CAP TO THE RESERVOIR, REMOVE ANY

counter clockwise. Damage to

nut more than 2 full turns

NOTE: When opening the valve
DO NOT turn the valve release

REMOVE TO GAIN
ACCESS TO THE 1/4"
VALVE RELEASE NUT

2 1/4" DIAMETER SOLENOID VALVE

1 1/2" DIAMETER SOLENOID VALVE

GROOVES

SIDE OF THE POWER
UNIT RESERVOIR

NOTE: The cam release may be
rotated in any direction on the
valve. DO NOT assume that
pushing down will open the

1 1/2" DIAMETER SOLENOID VALVE

valve. Pushing the cam in the

2 1/4" DIAMETER SOLENOID VALVE

the valve may result.

Damage to the valve may

FILL BETWEEN

SOLENOID VALVES WITH CAM RELEASE

wrong direction could damage
the valve.

NOTE: The cam release may be
rotated in any direction on the
valve. DO NOT assume that
pushing down will open the
valve. Pushing the cam in the
wrong direction could damage
the valve.

result.

WIRE TIE

HYDRAULIC SOLENOID VALVE

INFORMATION/INSTRUCTION SHEET

INDENTIFICATION - MANUAL OPERATIONS - REPLACEMENT

Manual retract

VALVE OPEN

CAM RELEASE

Default position

VALVE CLOSED

CAM RELEASE

Default position

VALVE CLOSED

position

CAM RELEASE
VALVE OPEN

position

Manual retract

REPLACEMENT VALVES WILL HAVE A VALVE RELEASE CAM

SOLENOID VALVES WITH 1/4" NUT RELEASE

1/4" NUT DRIVER, CLEAN ANY DEBRIS FROM THE

CAP, EITHER TO CHECK THE OIL LEVEL OR TO USE

IMPORTANT: PRIOR TO REMOVING THE BREATHER

INCLUDING DEBRIS INSIDE THE 1/4" NUT DRIVER.

PLASTIC PLUG:

PAINT CHIPS OR OTHER DEBRIS FROM THE DIPSTICK

VALVE

NUT

RELEASE

VALVE

open the valve. Do not over tighten
when closing.

approximately 4 1/2 turns to fully

compresses a spring. It takes

turn easy at first, then harder as it

open the valve. T-handle should

Turn T-handle counterclockwise to

BREATHER CAP W/NUT DRIVER

SOLENOID VALVES WITH T-HANDLE RELEASE

NOTE: OLD STYLE HEX SHAPED
SOLENOID VALVES HAVE NO MANUAL
VALVE RELEASE.

2 1/4" DIAMETER SOLENOID VALVE

Содержание SPACEMAKER

Страница 1: ...om 725 SERIES LEVELING SYSTEM HWH COMPUTER CONTROLLED R Straight Acting Jacks AP47963 R Pilot Air Dump SPACEMAKER ROOM EXTENSION SYSTEMS AND R RETRACT EXTEND HWH COMPUTERIZED LEVELING SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE UNDERSTAND OPERATOR S MANUAL BEFORE USING BLOCK FRAME AND TIRES STORE AUTO CANCEL AUTO LEVEL TRAVEL BRAKE MODE WARNING EXCESS SLOPE NOT IN PARK R MANUAL RETRAC...

Страница 2: ... ALL PEOPLE CLEAR OF VEHICLE WHILE DUMPING AIR FROM THE VEHICLE S SUSPENSION DO NOT MOVE THE VEHICLE IF THE VEHICLE IS NOT AT THE PROPER RIDE HEIGHT CONTACT MANUFACTURER IMPORTANT IF COACH IS EQUIPPED WITH A ROOM EXTENSION READ ROOM EXTENSION SECTION BEFORE OPERATING LEVELING SYSTEM 08APR10 MP14 0014 TECHNICAL SERVICE FOR MOVING THE VEHICLE WHEN NOT AT THE PROPER RIDE HEIGHT KEEP ALL PEOPLE CLEAR ...

Страница 3: ...s They are functional only when the ignition is in the ON extended 1 4 to 1 2 inch start the automatic leveling function It will sound if the master JACKS DOWN CONTROL IDENTIFICATION 725 SERIES LEVELING SYSTEM COMPUTER CONTROL or ACC position the system is on and the jacks are It will be on when any one or more jacks are extended button is being pushed RETRACT EXTEND HWH COMPUTERIZED LEVELING SECU...

Страница 4: ...h in the EXTEND position will extend the GENERATOR SLIDE Pressing the switch in the RETRACT position will retract the GENERATOR SLIDE Releasing the GENERATOR SLIDE CONTROL SWITCH will halt the operation of the GENERATOR SLIDE UNDERSTAND OPERATOR S MANUAL BEFORE USING TO PREVENT INJURY OR DAMAGE KEEP PEOPLE AND OBSTRUCTIONS CLEAR OF SLIDE MECHANISM WHILE OPENING OR CLOSING RETRACT CORPORATION H GEN...

Страница 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...

Страница 6: ...DED TO THE GROUND WARNING NOT IN PARK BRAKE light will go out The Automatic retracted before traveling Leveling function will not start Press the CANCEL button or turn the ignition switch OFF at any time to stop the operation of the system fail to retract completely extend the jacks back down to the ground then retract the jacks again NOTE If the vehicle is parked or stored with the jacks extended...

Страница 7: ...ndicator lights off the system will then stabilize the vehicle The switch will turn on when the jack extends to the ground and lifts the vehicle slightly Jacks that have lifted the vehicle for leveling should have pressure switches that are on The sequence starts with the right rear jack If the pressure switch is not on the system will extend the jack as necessary If the switch is on or when it co...

Страница 8: ... checked as soon as a safe parking location is found NOTE When the jacks are stored with the ignition in the ON position the warning buzzer will sound until the jacks have retracted to the STORE position If desired the jacks can be stored with the ignition key in the accessory position This will eliminate the warning buzzer while the jacks are retracting 1 Start the engine and press the AUTO STORE...

Страница 9: ... AS THE VALVE RELEASE IS OPERATED 1 Locate the manual valve release on each solenoid valve The solenoid valves are located on the power unit valve 2 Allow clearance for the vehicle to lower assembly WARNING KEEP AWAY FROM THE WHEELS 5 Check that all four jacks are now retracted 6 Close the valves by moving the valve release cam to 7 The system should now be repaired before using again 3 Retract th...

Страница 10: ...ONTROL SWITCH in the RETRACT position When the slide is fully retracted release the GENERATOR SLIDE CONTROL SWITCH than ten seconds after the slide is fully retracted or stops CONTROL SWITCH in the RETRACT position for more Do not hold the GENERATOR SLIDE IMPORTANT Releasing the GENERATOR SLIDE CONTROL SWITCH will halt the operation of the slide NOTE 4 If the slide will not retract see the MANUAL ...

Страница 11: ...TIONS AND INSTRUCTIONS MAY CAUSE FAILURE OF THE MANUAL RETRACT WINCH OR CONNECTIONS RESULTING IN DAMAGE OR PERSONAL INJURY MAINTAIN FIRM GRIP ON THE WINCH HANDLE AT ALL TIMES NEVER RELEASE THE HANDLE WHEN RATCHET LEVER IS IN THE OFF POSITION AND THE WINCH IS LOADED THE WINCH HANDLE COULD SPIN VIOLENTLY AND CAUSE PERSONAL INJURY CHECK THE WINCH AND STRAPS FOR DAMAGE OR WEAR AND CHECK FOR PROPER RAT...

Страница 12: ... they should be washed If extremely dirty the jack rods should NOT be wiped The jack rods do not need to be oiled or sprayed with anything ROOM EXTENSIONS The HWH room mechanisms need no maintenance DO NOT grease or lubricate any parts of the HWH mechanism Any visible mechanism can be kept clean by washing with water Refer to the vehicle manufacturer for correct maintenance of the room seals See M...

Страница 13: ...facturer or HWH CORPORATION 22NOV16 MP44 0502 Push the AUTO LEVEL button The NOT IN PARK BRAKE indicator light should come on while the AUTO LEVEL button is pushed Release the AUTO LEVEL for service or repair button and set the park brake The leveling system should now function WINTER WEATHER DRIVING have dried This can facilitate corrosion of metallic continue to absorb moisture from the air even...

Страница 14: ...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...

Страница 15: ...BREATHER CAP VELOCITY VALVE NOTE SOME MANIFOLDS ARE EQUIPPED WITH VELOCITY VALVES LF RF 3000PSI PRESSURE SWITCH 50PSI PRESSURE SWITCH RR LR MANIFOLDS MAY HAVE FOUR 4 LARGE VALVES OR FOUR 4 SMALL VALVES BE EQUIPPED WITH VALVE RELEASE NUTS OR RELEASE CAMS LARGE AND SMALL VALVES WITH RELEASE NUTS LARGE AND SMALL VALVES WITH RELEASE CAMS PRESSURE 3000 PSI ALTERNATE SWITCH LOCATION NOTE Load center is ...

Страница 16: ...ESSURE SWITCH JACK CYLINDER LEFT REAR RIGHT REAR RIGHT FRONT LEFT FRONT MP64 4530 29MAR10 3000 PSI SWITCH LEVELING SYSTEM ROOM EXTENSION MANIFOLD LOCATED HERE WHEN APPLICABLE RR SOL VALVE USED ON AUTOMATIC SYSTEMS ONLY NOTE 50 PSI PRESSURE SWITCH MAY NOT BE USED ON ALL 625 MANIFOLDS 3500 P S I BI AXIS LEVELING WITH STRAIGHT ACTING JACKS 625 625S OR 725 SERIES HYDRAULIC SCHEMATIC DIAGRAM 800 PSI TO...

Страница 17: ...R CAP BREATHER EXTEND VALVE GEN SLIDE CYLINDER RETRACT VALVE GEN SLIDE CYLINDER VALVE RELEASE NUT 17JAN11 MP64 7520 NUT RELEASE VALVE NOTE LEVELING MANIFOLD NOT SHOWN TO CHECK OIL LEVEL RETRACT GEN SLIDE SLIDE CYLINDER GENERATOR ROD END CONNECTION CAP END CONNECTION ...

Страница 18: ...CTRICAL CONNECTION DIAGRAM JACK WARNING SWITCHES AND PRESSURE SWITCHES SEE ELECTRICAL CONNECTION DIAGRAM LEVELING SYSTEM HYDRAULIC MANIFOLD PUMP AND MASTER RELAYS SEE ELECTRICAL CONNECTION DIAGRAM SENSING UNIT C A B PILOT AIR DUMP DO NOT CUT TERMINATING RESISTOR DO NOT CUT TERMINATING RESISTOR MULTIPLEXED INPUT OUTPUT MODULE SEE ELECTRICAL CONNECTION DIAGRAM 6230 9300 9301 8100 8101 SEE ELECTRICAL...

Страница 19: ...VEL SENSING UNIT C1 RED 6121 SHIELD WIRE FOR GREEN YELLOW CAN COMMUNICATION WIRES N A C2 N A GROUND FOR LEVEL SENSING UNIT WHITE C3 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 RED 6120 12 VOLT ACCESSORY POWER FOR I O MODULE GROUND FOR ...

Страница 20: ...5 26 BLACK 8100 SWITCHED GROUND FROM 3000 PSI MANIFOLD PRESSURE SWITCH SWITCHED GROUND FROM SENSING UNIT FRONT BLACK 27 0200 SWITCHED GROUND FROM LEFT FRONT JACK WARNING SWITCH 28 SWITCHED GROUND FROM LEFT REAR JACK WARNING SWITCH 4000 BLACK 29 SWITCHED GROUND FROM RIGHT REAR JACK PRESSURE SWITCH BLACK 30 3200 NO CONNECTION 31 GROUND FOR LEVEL SENSING UNIT WHITE 32 6231 12 VOLT POWER FOR LEVEL SEN...

Страница 21: ... MASTER RELAY A C A B 40 AMP FUSE SWITCH 8100 SEE ELECTRICAL CONNECTION DIAGRAM 725 SERIES SINGLE STEP LEVELING SYSTEM PILOT AIR DUMP GND 6231 DUMP 9300 TRAVEL 9301 SEE DETAIL A MULTIPLEX I O MODULE 50 LB PRESSURE SWITCH 4400 1400 2400 3400 8101 8500 6230 GROUND RELAY 6800 DEUTSCH CONNECTOR TO 12 VOLT BATTERY 8600 6230 TO GROUND STUD ON PUMP 6230 POWER UNIT SIDE VIEW GROUND STUD RELAY GROUND I O M...

Страница 22: ...A B B A P E D 5100 5000 TO HWH GROUND STUD ON PUMP 6245 1E CYL EXTEND GEN SLIDE EXTEND 1R CYL RETRACT GEN SLIDE RETRACT GENERATOR SLIDE HYDRAULIC MANIFOLD FUSE 5 AMP FUSE 15 AMP 6810 6100 6810 6100 8601 SEE ELECTRICAL CONNECTION DIAGRAM GENERATOR SLIDE GENERATOR SLIDE CONTROL CONNECTIONS JACK WARNING SWITCHES AND PRESSURE SWITCHES 725 SERIES SINGLE STEP LEVELING SYSTEM SEE ELECTRICAL CONNECTION DI...

Страница 23: ...TRACT AUTO STORE LEVEL AUTO WARNING BRAKE TRAVEL CANCEL MODE PARK NOT IN EXCESS R SLOPE MANUAL RETRACT EXTEND MANUAL DUMP 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 3334 PIN 4 PIN 1 6 5 NO CONNECTION 6 PIN UML CONNECTOR 1 THRU 4 SWI...

Страница 24: ...0 BLACK 8601 SWITCHED 12 TO I O MODULE FOR PUMP REQUEST PIN 11 RED 6100 12 BATTERY FROM MASTER RELAY PIN 12 KEY PIN 12 PIN DEUTSCH CONNECTOR SEE ELECTRICAL CONNECTION DIAGRAM GENERATOR SLIDE GENERATOR SLIDE HYDRAULIC MANIFOLD ROOM CONTROL PANEL CORPORATION H OBSTRUCTIONS CLEAR OF SLIDE MECHANISM WHILE TO PREVENT INJURY OR DAMAGE KEEP PEOPLE AND UNDERSTAND OPERATOR S MANUAL BEFORE USING WARNING GEN...

Страница 25: ...D 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 PIN 6 GREEN BLACK ...

Страница 26: ...L BOX CONTROL BOX THE SYSTEM MAY BE OPERATED IN ACCESSORY WITHOUT THE BUZZER SOUNDING NOTE BY SUPPLYING IGNITION POWER TO THE WARNING BUZZER AND LIGHT AND ACC POWER TO THE STRAIGHT ACTING JACKS A WARNING BUZZER MUST BE USED A MASTER WARNING INDICATOR SHOULD ALWAYS BE USED WHEN THE LEVELING SYSTEM HAS AND IN LINE CONTROL CONNECT THIS END TO 12 VOLT IGNITION ON POWER PIGTAIL W DIODE FUSE HOLDER 6121...

Страница 27: ...the valve DO NOT assume that pushing down will open the valve Pushing the cam in the wrong direction could damage the valve result WIRE TIE WIRE TIE HYDRAULIC SOLENOID VALVE INFORMATION INSTRUCTION SHEET INDENTIFICATION MANUAL OPERATIONS REPLACEMENT Manual retract VALVE OPEN CAM RELEASE CAM RELEASE Default position VALVE CLOSED CAM RELEASE Default position VALVE CLOSED position CAM RELEASE VALVE O...

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