Walker Hydraulic Jack Manual
Find great deals on eBay for walker hydraulic jack. Shop with confidence. 261 rows Lazzar's HCRC is a leading supplier of repair parts and seal kits for floor. Rebuilding a Hydraulic Floor Jack. I did find one manual for a floor jack that said the. But is actually for a Lincoln/Walker jack.
This is a 1 1/4 ton hydraulic floor jack my father passed on to me. He bought it new during the 1970s. It began to leak down a little a few months ago. The lift arm no longer rises when the handle is pumped up and down. (I was able to pull the lift arm up by hand and it settled slowly enough that I could make a photo with the arm partially raised.)
I checked to be sure it was adequately filled with fluid, but that was not the problem. A few months before this problem, there were bubbles coming up through the vents at the filler plug. At that time I raised the lift arm with the handle, released the jack's valve, and let the arm fall slowly several times to purge air from the system. Finally, one day, the lift arm would not rise at all.  If filling with fluid and purging air from the system do not restore function, there is probably internal leakage, even though fluid is not leaking from the jack. From what I have read, forty years of service is a reasonable time for a hydraulic jack to operate before it needs a rebuild. 
A word of caution: Rebuilding this jack presented several challenges that seemed almost insurmountable at the occurrence of each. Rebuilding this jack was much more difficult than simply replacing a few 'O' rings, and it required more than the very few hours some say are required for rebuilding a jack. Further, I had to make several special tools to get the job done. If you want to attempt rebuilding a jack and you are not a member of Instructables, I would encourage you to pick a password and a screenname, and join. Doing that will allow you to download a PDF of this Instructable for printing, or to view at any time later on your computer, assuming you wish to consult what I have done as a guide. 
When putting fluid into a jack never use anything other than hydraulic jack fluid. Do not use motor oil or brake fluid. Brake fluid makes the seals swell. 
At this link you will find one man's description of how he rejuvenated his twenty-five year old jack by flushing its insides with a solvent, letting it dry completely, and filling it with fresh hydraulic jack fluid. It could be worth a try. I did find one manual for a floor jack that said the fluid should be changed every year. The procedure is to place the jack over a large pan, remove the filler plug, turn the jack on its side and let it drain. Then fill it again.

- VINTAGE 1958 HYDRAULIC JACK SERVICE PARTS MANUAL WALKER BLACKHAWK HEIN WERNERPre-OwnedFrom United StatesBuy It Now
- WALKER 5 Ton High Range Bottle Jack USA madePre-OwnedTime left1h 44m left0 bidsFrom United States
- Walker Hydraulic Telescopic Transmission JackPre-OwnedFrom United Statesor Best Offer
- 226112 Handle Socket End - Lincoln/Walker Floor JackBrand NewFrom United StatesBuy It NowCustoms services and international tracking providedBrand NewSave up to 5% when you buy moreFrom United States+$17.95 shipping
- 226112 Handle Socket End w/212908 Pin - Lincoln/Walker Floor JackBrand NewFrom United StatesBuy It NowCustoms services and international tracking provided
- complete hydraulic unit for Snap On- Floor jack- YA642RefurbishedFrom United StatesBuy It Now
- 2 Ton Hydraulic Bottle Jack Car Repair toolsBrand NewFrom United StatesBuy It NowCustoms services and international tracking provided96 Sold96 Sold
- New ListingTorin Big Red Telescoping Hydraulic Transmission Floor Jack: 1/2 Ton......Brand NewFrom United StatesBuy It NowCustoms services and international tracking provided
- LINCOLN WALKER 240564 Jack Repair Kit 93662 93666 93667 93729 93730 (AE1)Brand NewSave up to 9% when you buy moreFrom United States+$48.01 shippingCustoms services and international tracking provided
- U-CUP Seal for 'Hydraulic Floor Jack' Packing NORCO, Sears 328 Series 22x40x12Brand NewFrom United StatesBuy It NowCustoms services and international tracking provided
- 8 Ton Hydraulic Long Manual Ram Jack Pump Engine Lift Hoist Cherry PickerBrand NewTop Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
 Buy It NowFrom United StatesCustoms services and international tracking providedOnly 1 left!
- Seal kit- Lincoln/ Walker 93642- J122 2 ton floor jackBrand NewFrom United StatesBuy It Now18 Watching
- Rubber Saddle Pad for your 2 Tonne Hydraulic Trolley Jack - SMALL SIZEBrand NewFrom United KingdomBuy It Now41 Sold41 Sold
- New Hydraulic Machine Toe Jack Lift 5 TON /Top 10 TONBrand NewFrom United Statesor Best OfferCustoms services and international tracking provided69 Sold69 Sold
- 2 Ton Mini T30 Portable Floor Jack Vehicle Car Garage Auto Small Hydraulic LiftBrand NewTop Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
 Buy It NowFrom United StatesCustoms services and international tracking provided258 Sold258 Sold
- New ListingVintage 1960's Hydraulic Bottle Jack w/ Handle - Janesville Auto Transport Co,WIPre-OwnedTime left6d 6h left0 bidsFrom United StatesCustoms services and international tracking providedBuy It Now
- Auto Parts jack oil Pump Parts Hydraulic Vertical Small Cylinder Piston PlungerBrand NewFrom ChinaWas: Previous Price$9.00Free International Shipping
- Compact Portable Hydraulic 20 Ton Short Lift Jack with 3/8' Quick Connector ToolBrand NewFrom United KingdomBuy It NowCustoms services and international tracking providedTrending price is based on prices over last 90 days.Customs services and international tracking provided+$15.64 shipping2% off
- 2 ton trolley CAR WHEEL JACK WIND UP lifting pad hydraulic floor garage highBrand NewFrom United KingdomBuy It Now28 Watching
- 4 Ton Hydraulic Bottle Jack Car Repair toolsBrand NewFrom United StatesBuy It Now
- Car Rubber Slotted Rail Hydraulic Floor Jack Guard Disk Pad Frame Rail AdapterBrand NewFrom ChinaWas: Previous Price$4.36Free International Shipping- Walker Hydraulic Jack Identification