I've used Bulldog top-wind jacks on equipment trailers for years. Those jacks have gotten harder and harder to crank, and the usual shot of penetrating oil on the top shaft isn't making much improvement. I'm thinking about drilling a small hole (1/8 or 3/16) in the main tube 1/2 inch down from the top so I can get a better shot at the jack screw with the lube. Hole needs to be just below the bearing. Might try to come up with some sort of hole plug to keep most of the dirt and water out of it. Any other suggestions to make these jacks work smoothly again? Thanks.
- Thread starter Doug-Iowa
- Start date
Janicholson
Well-known Member
Penetrating oil is not mush of a lubricant. Take it off and unscrew it till it comes apart. Clean and relube with corn head grease or Mobil 1 red synthetis chassis grease. Jim
I was thinking about removing the handle and welding a 1/2 inch nut to the shaft so I could use my cordless impact. But my luck I'd get to where I'm going having forgotten the impact or even a wrench and be worse off than I am now!
I tried extending the jack until the bottom part came off but it must be staked or somehow pinned inside so it can't do that. Drilling the hole is the next step. Thanks for the replies.
I tried extending the jack until the bottom part came off but it must be staked or somehow pinned inside so it can't do that. Drilling the hole is the next step. Thanks for the replies.
Doug - Iowa
Member
The hole idea worked great. I used WD40 on first try then a spray grease and after a few cycles it cranks like new. One down and 5 to go.
Part Time Pete
Well-known Member
- Location
- Leatherstocking Region NY
I drill and tap mine for a 1/4-28 grease zerk
Pete
Pete
BarnyardEngineering
Well-known Member
- Location
- Rochester, NY
An impact will beat the jack to pieces.
A battery operated drill does not have enough torque.
It only takes 20-30 cranks to fully extend or retract a jack. Is it really that much of a bother that you need to motorize it?
Adirondack case guy
Well-known Member
I have done the same as Pete. Keeps the water out and works great.
Loren
Loren
The biggest of the cordless drills will turn a jack. I used to have a slide in pickup camper with 4 manual jacks. Jacks are the same as those used on hitches, just longer. The biggest of the 18V milwaukee
drills will crank all you need. Just hang on tight as it will twist your wrists if not careful.
drills will crank all you need. Just hang on tight as it will twist your wrists if not careful.
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