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Hydraulic floor jack diagram. I need to get a replacement part for a sears 2 1/4 ton floor jack. The part attaches between the handle and the piston it allows the piston to follow the handle back to its starting point for another cycle. Maybe a return clip?

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Sears 4 Ton Hydraulic Automotive Floor Jack-Will Not Lift ?

oh ok i see whats wrong if u filled it with oil and realesed all the air out should be good if no go there is only one more problem that it can be

the 2 seals inside the jack one is a decent sized o ring
and the other is a rubber stopper to build up the pressure
to fix this problem the actual pump must be pulled out of the jack i have done this before but it is sorta hard if u need further help i can send u a diagram on how to do it thanks from chris

Posted on Sep 27, 2008

  • 89 Answers

SOURCE: how do you fill a ac delco hydraulic 3 ton floor

DONT KNOW WHO BUILT THIS JACK- AC DELCO JUST PUT STICKERS ON IT. TYPICALLY YOU REMOVE A PLASTIC SCREW IN PLUG OR A POP IN RUBBER STOPPER FROM THE TOPSIDE OF THE CYLINDER. WITH THE JACK ALL THE DOWN, FILL IT COMPLETELY UP AND IT SHOULD WORK. SOMETIMES THEY GET AIR IN THEM - JUST LEAVE THE PLUG OUT AND JACK IT UP A FEW TIMES, THEN INSERT PLUG. USUALLY 10 WEIGHT HYD OIL. OR "JACK OIL" AT THE STORE.

Posted on Mar 27, 2009

  • 89 Answers

SOURCE: Sears model # 875.501390 floor jack will not raise at all.

IT SOUNDS LIKE IT IS CAPABLE OF MOVING FLUID FROM THE RESERVOIR TO THE CYLINDER. CAN YOU SEE THE SMALL PUMP PISTON POP BACK OUT WHEN PUMPING THE HANDLE? MOST JACK PROBLEMS BELIEVE IT NOT IS AIR. THEY GET AIR POCKETS IN THEM AND CANT PUMP THEM OUT. TRY REMOVING THE FILL PLUG ( TYPICALLY A SMALL RUBBER POP-IN CAP ) FROM THE CYLINDER AND JACK IT UP. IF THIS WORKS DO IT FEW TIMES, THEN REINSTALL THE PLUG. YOU COULD ALSO HAVE A SMALL CHECK VALVE PROBLEM INSIDE. IF YOU DISASSEMBLE, BEWARE OF SMALL SPRINGS AND CHECK BALLS. MAKE NOTES. HOPE THIS HELPS.

Posted on Apr 07, 2009

erickg
  • 116 Answers

SOURCE: Floor jack will not raise even without load

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

Posted on Apr 16, 2009

  • 1 Answer

SOURCE: hi i have a 3 ton sears floor jack i can not

Hi,

I think I have the same jack. Th serial number was on a little sticker that is long gone,but the model number you need might needs is: 875.501390.

Hope this helps.
Gary

Posted on May 02, 2009

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Sears 11/2 ton floor jack


Is there anywhere that you can tighten the seal retainer if not needs a new seal . My experience is that a seal kit is as expensive as buying a new jack plus the work that goes into it. Look up how much to buy a new one and a set of seals then decide

Oct 21, 2013 | Washing Machines

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I have a Pro-lift floor jack - model #F-388P - (2-1/4 ton, 4500 lbs). It is leaking hydraulic fluid where it compresses the fluid (where the piston compresses the fluid - the gaskets leak). Can you...


Try here - this is the PDF for one of their jacks, but contact info is on lower right side

http://www.shinnfuamerica.com/Temp/831.pdf

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1 Answer

Sears model # 875.501390 floor jack will not raise at all.


IT SOUNDS LIKE IT IS CAPABLE OF MOVING FLUID FROM THE RESERVOIR TO THE CYLINDER. CAN YOU SEE THE SMALL PUMP PISTON POP BACK OUT WHEN PUMPING THE HANDLE? MOST JACK PROBLEMS BELIEVE IT NOT IS AIR. THEY GET AIR POCKETS IN THEM AND CANT PUMP THEM OUT. TRY REMOVING THE FILL PLUG ( TYPICALLY A SMALL RUBBER POP-IN CAP ) FROM THE CYLINDER AND JACK IT UP. IF THIS WORKS DO IT FEW TIMES, THEN REINSTALL THE PLUG. YOU COULD ALSO HAVE A SMALL CHECK VALVE PROBLEM INSIDE. IF YOU DISASSEMBLE, BEWARE OF SMALL SPRINGS AND CHECK BALLS. MAKE NOTES. HOPE THIS HELPS.

Apr 06, 2009 | Plumbing

1 Answer

Floor jack will not raise even without load


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

Apr 02, 2009 | Plumbing

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...

2 Answers

Hi i have a 3 ton sears floor jack i can not


Hi,

I think I have the same jack. Th serial number was on a little sticker that is long gone,but the model number you need might needs is: 875.501390.

Hope this helps.
Gary

Mar 01, 2009 | Plumbing

1 Answer

Problem removeing brake discs.


Replace Page 1 of 2
u can vist auto zone .com for more info here to help Shaun

Before any service is performed, carefully check the following:
  • Be sure the vehicle is properly centered and secured on stands or a hoist.
  • If the vehicle has antilock brakes, depressurize the system according to the procedures given in the service manual.
  • Disconnect the battery ground cable.
  • Front brake pad replacement begins with removing brake fluid from the master cylinder reservoir. If this is not done, the fluid could overflow and spill when the pistons are forced back into the caliper bore, possibly damaging the painted surfaces.
  • Replace the cover.
  • Discard old brake fluid.




  • Raise the car. Make sure it is safely positioned on the lift.
  • If you don't have a lift, use a jack and jack stands.
  • A handle on the jack is moved up and down to raise part of a vehicle and a valve is turned to release the hydraulic pressure in the jack to lower the part. At the end of the jack is a lifting pad.
  • The pad must be positioned under an area of the vehicle's frame or at one of the manufacturer's recommended lift points.
  • Never place the pad under the floorpan or under steering and suspension components, because they can easily be damaged by the weight of the vehicle.
  • Always position the jack so that the wheels of the vehicle can roll as the vehicle is being raised.
  • Never use a lift or jack to move something heavier than it is designed for. Always check the rating before using a lift or jack. If a jack is rated for 2 tons, do not attempt to use it for a job that requires a 5-ton jack. It is dangerous for you and the vehicle.
  • Safety stands, also called jack stands, are supports of various heights that sit on the floor. They are placed under a sturdy chassis member, such as the frame or axle housing, to support the vehicle.
  • Once the safety stands are in position, the hydraulic pressure in the jack should be slowly released until the weight of the vehicle is on the stands. Like jacks, jack stands also have a capacity rating. Always use the correct rating of jack stand.
  • Never move under a vehicle when it is supported by only a hydraulic jack. Rest the vehicle on the safety stands before moving under the vehicle.
  • The jack should be removed after the jack stands are set in place.
  • This eliminates a hazard, such as a jack handle sticking out into a walkway. A jack handle that is bumped or kicked can cause a tripping accident or cause the vehicle to fall.
  • If you use support stands on asphalt, put a piece of thick plywood or a steel plate under the stands.
  • Remove its wheel assemblies.




  • Inspect the brake assembly.
  • Look for signs of fluid leaks, broken or cracked lines, or a damaged break rotor. If a problem is found, correct it before installing the new brake pads.


  • Loosen the bolts and remove the pad locator pins.
  • During servicing, grease, oil, brake fluid, or any other foreign material must be kept off the brake linings, caliper, surfaces of the disc, and external surfaces of the hub. Handle the brake disc and caliper in such a way as to avoid deformation of the disc and nicking or scratching of the brake linings.


  • Lift and rotate the caliper assembly from the rotor.


  • Remove the brake pads from the caliper assembly.




  • Fasten a piece of wire to the car's frame and support the caliper with the wire.
  • When a hydraulic hose is disconnected, plug it to prevent any foreign material from entering.




  • Check the condition of the locating pin insulators and sleeves.



Art courtesy of Delmar - Thomson Learning.
  • Place a piece of wood over the caliper's piston and install a C-clamp over the wood and caliper.
  • Tighten the clamp to force the piston back into its bore.

Nov 15, 2008 | 1998 Honda Accord

4 Answers

Sears 4 Ton Hydraulic Automotive Floor Jack-Will Not Lift ?


I have a Sears 1 1/2 ton floor jack. I was able to buy a repair kit from Astro Pneumatic Tool Company 372 OLD U.S. Hwy 52 South Mount Airy N,C 27030-8093
1-800-221-9705
John

Sep 27, 2008 | Plumbing

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