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MAINTENANCE

MP44.0010

15SEP08

PRIMING THE HAND PUMP

JACK CONTROL HYDRAULIC SWITCH

NEUTRAL POSITION

To prime the hand pump, it will be necessary to remove a 
hose from the cap end of the synchronizing cylinder and

HAND PUMP
HANDLE

MOTION

OPERATING

Reattach the hose and retry the hand pump.  Repeat the
procedure if the hand pump does not move the room.

TANK

place the hose in a bucket.

IMPORTANT: DO NOT ALLOW THE FLUID LEVEL IN
THE TANK TO LOWER MORE THAN 1 INCH BEFORE
ADDING FLUID.

EXTEND
POSITION

Move the room control hydraulic switch to "UP".  Make sure
the tank is at least half full.  Pump the hand pump until a
healthy flow of fluid comes from the hose.

SYNCHRONIZING CYLINDER

CAP END

REMOVE THIS HOSE
AND PLACE IN A BUCKET

Summary of Contents for AP43472

Page 1: ...906 W CORPORATION H H R www hwh com Ph 800 321 3494 or 563 724 3396 Fax 563 724 3408 2096 Moscow Road Moscow Iowa 52760 On I 80 Exit 267 South HWH CORPORATION One Universal Vertical Room Lift Hydraulic Switch and Auxiliary Hand Pump FEATURING R AP43472 115 Volt Pump Motor ...

Page 2: ...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 the Customer Service Department at HWH CORPORATION If your dealer cannot or will not solve the problem notify the Customer Service Department HWH CORPORATION 2096 Moscow Rd Mosc...

Page 3: ...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 three minutes wit...

Page 4: ...nd the room until the room the room If the direction of the room has been of the room may be reversed but watch for binding of the room is fully extended If necessary the direction During normal operation Do not hold the PUMP CONTROL SWITCH Hold the PUMP CONTROL SWITCH three or four seconds after the room is fully extended This assures proper of the room do not reverse direction of the room until ...

Page 5: ...ill NOT help the room come down The pump would just bog down and go to relief 1 To lower the room pull the hydraulic switch to the DOWN position The switch can be feathered to the DOWN position to control the speed that the room lowers 2 When the room is completely lowered move the hydraulic switch to the NEUTRAL position ROOM IS LOWERING OR IF THE ROOM WILL NOT LOWER WITH THE HYDRAULIC SWITCH IN ...

Page 6: ...second stage The pumping action will be easier at first as the second stage starts to create more pressure To operate the auxiliary hand pump move the hydraulic switch to the desired position Insert the hand pump handle into the handle receptacle and move the handle in an up and down motion It is recommended to operate the auxiliary hand pump occasionally to check it s operation SIDE VIEW HANDLE R...

Page 7: ...hose and retry the hand pump Repeat the procedure if the hand pump does not move the room TANK place the hose in a bucket IMPORTANT DO NOT ALLOW THE FLUID LEVEL IN THE TANK TO LOWER MORE THAN 1 INCH BEFORE ADDING FLUID EXTEND POSITION Move the room control hydraulic switch to UP Make sure the tank is at least half full Pump the hand pump until a healthy flow of fluid comes from the hose SYNCHRONIZ...

Page 8: ... MUST MAINTAIN EQUAL LENGTH B HOSES MUST BE HIGH PRESSURE HOSES B ROD END A CAP END 1 4 HOSE CHECK OIL LEVEL WITH ROOM UP CYLINDER RETRACT ROOM UP CYLINDER EXTEND ROOM DOWN ROD END CONNECTION CAP END CONNECTION SYNCHRONIZING CYLINDER A CAP END 1 4 HOSE CONNECTION NO CONNECTION NO RETURN LINE CAP END 1 2 1 8 HIGH PRESSURE HOSE 1 8 HIGH PRESSURE B ROD END HOSE ROD END 1 4 HOSE ...

Page 9: ...CTRICAL JUNCTION BOX SEE WIRING DETAILS BELOW CONTROL SWITCH PUMP MOTOR GROUND SCREW GROUND SCREW C NC NO MOTOR WIRE 1 WIRE 3 MOTOR GREEN MOTOR WIRES 2 4 WHITE NEUTRAL BLACK 115 VOLT NOT USED PUMP MOTOR CONTROL SWITCH MOTOR PUMP 115 VOLT WIRING TO MOTOR BY OEM WIRE LEGEND MOTOR WIRE 1 BLUE MOTOR WIRE 2 WHITE MOTOR WIRE 3 ORANGE MOTOR WIRE 4 YELLOW ...

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