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When I attempt to pump the jack up it will not stay raised up

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Either the pressure release valve is loose or the seals are worn out. Make sure the screw valve is tight. If that doesn't fix the problem, buy another jack. The seals really aren't user replaceable.

Posted on Oct 15, 2013

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Posted on Jan 02, 2017

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I have a 36ft winnebago Chieftain on a F53 chassis. I need to replace the fuel pump in the tank but the leveling jacks seem to go around the tank any idea how I remove them to get to the tank. If at


I dropped the tank on a 34' Fleetwood with the same situation. The jacks were welded on so there was no removal option. What I did was (1) Cut eight 4x4 s into 12" sections. I bolted 4 sections together to make a "pad". One 8" 4X4 makes two pads. (2) Then I pumped the fuel into drums. Free drums are easy to find. A cheap 12V fuel pump and tubing is available from any auto supply. (3) I raised the camper on all 4 jacks. Than I retracted one jack, set a pad in place under it and extended the jack fully. Clockwise I put pads under all the jacks one at a time to make a layer. Then I put in another layer of jacks, round and around, and continued until the camper was up 4 layers. (4) The camper could "roll" forward off the jacks at this point because the wheels were off the ground. I attached a chain to the camper frame and took tension backwards using a come-along chained to a tree. (5) Then I got some pallets from the grocery store trash and put those under the tank. (6) I loosened the hangers for the tank and let it down on the pallets slowly. The hoses have to be removed before the tank drops very far. I worked the pallets out one layer at a time to lower the tank to the ground. (7) I could reach the pump mounting plate so I just removed the screws and lifted out the pump and gasket. (8) installation was the reversal.

If I had to do it again, I would take it to Camping World or a truck garage. They have lifts to raise the camper and jacks to raise and lower the tank.

Nov 22, 2014 | Cars & Trucks

1 Answer

Need help in raising the seat of a new Hoveround MPV 5


seat is heavy. first unscrew set screw that holds the shaft sections tight. next put a board across the batteries, then get a bottle jack and start pumping. something's going to give. hopefully it will be your chair raising. Next go to Lowes and buy a pin to fit through the holes. release jack, enjoy your raised seat...

Oct 31, 2013 | Hoveround MPV5 Electric Wheelchair - Used...

1 Answer

Motomaster motorcycle jack won't raise


Hi Bogdan:
Seems there may be some confusing instructions.
Here's what I would try. My approach would be intended to get the bike off the stand before I tried to trouble shoot the motomaster jack.
1) Use the handle to rotate the release valve to the right (clockwise) until it is snug.
2) Pump the jack to try to raise it. If it raises, then press the release pedal and use the jack handle to slowly rotate the release valve to the left (counter-clockwise) to lower the deck.
3) If it does not raise, I would use a separate jack to raise it, then follow the prescribed lowering procedure, and at the same time, use the control on the extra jack to manage the lowering.
Once you get it partially lowered, hopefully the motomaster jack will start to function and you can lift the bike far enough to remove your extra jack.
Hope this helps.
To let me know if it works for you, please reply as a comment to this post..

Jul 29, 2013 | Motormaster Cv Joint Front Female*-ATV

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What is the difference between a manual pallet jack and a powered pallet jack?


As the name suggests, for manual pallet jacks you walk behind the forks and pump the handle to raise them/lower them. On powered, or electric, pallet jacks, there is a throttle for moving and a lever for raising/lowering the forks. On some powered pallet jacks, there is a platform for the operator to stand on

May 27, 2013 | Hoisting

1 Answer

Removed gas tank guard now won't start


Overtime, Jeep Grand Cherokee fuel tanks develop rust and accumulate sediment. This is especially true if the tank sits empty for a period of time. Rust and sediment can break loose and cause clogged filters. When the filter is clogged, the engine does not receive the amount of fuel required to operate. The fuel tank can be cleaned out; however, replacing the tank is easier.
  • 1 Apply the parking brake.

  • 2 Remove the gas cap.
  • 3 Remove the fuel pump relay from the power distribution center under the hood. Look at the underside of the power distribution cover, and locate the fuel pump relay.

  • 4 Attempt to start the engine, cranking the engine for several seconds.
  • 5 Turn the ignition to "Off." Install the fuel pump relay.
  • 6 Disconnect the negative cable from the battery.
  • 7 Lift the fuel tank into position, using the jack.

    8 Attach the fuel filler hose and vapor return hose to the fuel tank.Tighten the clamps with a Phillips screwdriver.

  • 9 Pivot the fuel tank retaining straps into position. Tighten the fuel tank retaining strap nuts with a socket and ratchet. Lower the jack.

  • 10 Connect the fuel pump electrical connector, the fuel filter line and the fuel return line. Push the fuel line retainer into the chassis.
  • 11 Raise the heat shield. Install the mounting bolts. Tighten the mounting bolts with a socket and ratchet.
  • 12 Install the tow hooks or trailer hitch, if equipped.
  • 13 Lift the skid plate into position with the jack. Tighten the skid plate mounting bolts with a socket and ratchet.
  • 14 Attach the electrical service connector to the bumper with a socket and ratchet.
  • 15 Raise the jack and remove the jack stands. Slowly, lower the vehicle.
  • 16 Pour the fuel into the gas tank. Connect the negative battery cable.
  • Buy Custom car Parts.







    Jun 02, 2012 | 1995 Jeep Grand Cherokee

    1 Answer

    My 2 stage floor jack raises to load point, butbut no further -- at this point you cannot pump the handle


    raise the head all the way up remove plug and fill with hyd fluid replace plug and try to jack it should go all the way up...i had same problem..

    Feb 27, 2012 | Cars & Trucks

    1 Answer

    I dont know how to change the drivers side transmission mount on my 99 alero what would be the best way


    YOU NEED TO SUPPORT ENGINE TO REMOVE TRANSAXLE BRACE.YOU CAN USE FLOOR JACK WITH A PIECE OF WOOD ON JACK SADDLE.YOU NEED TO REMOVE WHEEL OR TIRE SPLASH SHIELD TO REMOVE THE TRANSAXLE BRACE PLACE FLOOR JACK WITH A PIECE OF WOOD IN JACK SADDLE PLACE JACK UNDER THE ENGINE OIL PAN.SLIGHTLY RAISE JACK A LITTLE JUST ENOUGH TAKE PRESSURE OFF THE TRANSAXLE TO REMOVE TRANSAXLE BRACE.DONT RAISE FLOOR JACK UP TOO MUCH UNDER THE ENGINE OIL PAN BECAUSE YOU COULD DAMAGE OIL PAN AND OIL PUMP.

    Jun 25, 2011 | 1999 Oldsmobile Alero

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    The function that rsiaes and lowers the vehicle doesn't work,


    Lifting

    The following instructions must be carried out before raising the vehicle off the ground.

    • Use a solid level ground surface.
    • Apply hand brake.
    • Select 'P' on automatic gearbox selector.
    Note: If the propeller shafts are to be removed, reference must be made to the relevant operation. To avoid damage occurring to the under body components of the vehicle the following jacking procedures must be adhered to.

    DO NOT POSITION JACKS OR AXLE STANDS UNDER THE FOLLOWING COMPONENTS:
    • Body structure other than approved jacking points
    • Bumpers
    • Fuel lines
    • Fuel tank
    • Brake lines
    • Front or rear suspension arms
    • Transfer box
    • Steering linkage
    • Front or rear differential units
    • Engine sump
    • Automatic gearbox
    NOTE: For certain repair operations, it may be necessary to support the engine under the sump. In this case, a block of hardwood or a rubber block should be positioned on the jack lifting cup to protect sump. Vehicle jack
    The jack provided with the vehicle is only intended for use in an emergency, for changing a tyre. DO NOT use the jack for any other purpose. Refer to Owner's Handbook for vehicle jack location points and procedure. Never work under a vehicle supported solely by the vehicle jack.

    Hydraulic jack
    A hydraulic jack with a minimum 1500 kg, (3,300 lbs) load capacity must be used.

    WARNING: Do not commence work on the underside of the vehicle until suitable axle stands have been placed in their correct position. Always chock the wheels when jacking. The handbrake may be ineffective when the wheels are off the ground. Raising and supporting the vehicle
    To assist in raising the vehicle, jacking points are provided as shown in the following illustrations.

    Raising the front of the vehicle
    Apply handbrake, select 'P' on automatic gearbox selector and chock rear wheels.
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    Raise vehicle to enable axle stands to be positioned under, either, the front sub-frame, or the recommended customer jacking points.

    CAUTION: Place a piece of hardwood or a rubber block between each axle stand and the jacking point to avoid damaging the body / component. If the propeller shafts are to be removed, select NEUTRAL in the main gearbox.
    Carefully lower jack until vehicle sits securely on axle stands.

    WARNING: Always support the vehicle on axle stands when using a jack.
    Before commencing work on underside of vehicle re-check security of vehicle on stands.

    Reverse procedure when removing vehicle from stands.

    Raising the rear of the vehicle
    Select 'P' on automatic gearbox selector and chock front wheels.

    WARNING: Always chock the front wheels when jacking the rear of the vehicle.

    Axle stand positions - rear

    Raise rear of vehicle to enable axle stands to be positioned under the rear sub-frame. Alternatively, the axle stands may be positioned under, either, the recommended customer jacking points or the front mounting points of the rear sub-frame.

    CAUTION: Place a piece of hardwood or a rubber block between each axle stand and the jacking point to avoid damaging the body / component. If any damage occurs to the washers on the front mounting points of the rear sub-frame, then the washers must be replaced. Carefully lower jack until vehicle sits securely on axle stands.

    WARNING: Always support the vehicle on axle stands when using a jack. Before commencing work on underside of vehicle re-check security of vehicle on stands.

    Reverse procedure when removing vehicle from stands.

    Wheel-free lift
    The following warning must be read before attempting to lift the vehicle.

    WARNING: The vehicle cannot be supported safely in a wheel-free condition using the wheel-free facility of a four post ramp, and under no circumstances must this method be employedA wheel free condition may only be achieved on a four post ramp by raising each end of the vehicle and positioning axle stands beneath the recommended customer jacking points.

    CAUTION: Place a piece of hardwood or a rubber block between each axle stand and the jacking point to avoid damaging any components. If the propeller shafts are to be removed, select NEUTRAL in the main gearbox. WARNING: The front and rear suspension lower arms must NOT be used as lifting / jacking points. Alternatively, support the vehicle on an approved two post lift with the arms of the lift beneath the recommended customer jacking points.

    CAUTION: Place a piece of hardwood or a rubber block between the lifting equipment and the jacking points to avoid damaging any components. If the propeller shafts are to be removed, select NEUTRAL in the main gearbox.

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    sounds like either pump piston seals or check valve on pump.

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    1 Answer

    Hydraulic jack wont move.


    Hi, A hydraulic jack is a pretty simple device, consisting of a piston/ cylinder, an oil reservoir, and a valve. You close the valve, pump the handle, which pumps oil into the cylinder and raises the jack. When you open the valve, it allows the oil to flow back into the reservoir and the jack will lower. If it still has oil in it, ( or is still in the up position) start with the valve, you should be able to remove it an clean it up. If you need more help, let me know. Good Luck, this should Fixya!

    Mar 20, 2009 | RTO Hydraulic Service Spider Jack,2 1/2...

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