Harbor freight air over hydraulic ram

This long ram jack lifts up to 6000 lb., making it an ideal replacement for shop cranes. 8 Ton Super Heavy Duty Long-Ram, Round-Bottom Air/Hydraulic This long-ram jack lifts up to 16,000 lb. and has dual-power operation for pneumatic or manual lifting.

Lift trucks, farm vehicles and more with this 20 ton air/hydraulic bottle jack. This industrial jack lifts up to 40,000 lb. with little effort. The 48 in. long air hose provides the option to power this hydraulic jack with air. Rugged cast iron base; Precision machined steel ram; Safety spring ram retention; Twist top for additional height6514 posts · Joined 2007. #3 · Jul 12, 2022. When the jack in my Chinesium engine hoist went bad, I got a Harbor Freight air-over-hydraulic jack to replace it. The air-powered feature is pretty cool, as the hose on the control is long enough that you can operate the jack while standing near the engine to guide it out or in.Buy XtremepowerUS 8 Ton Air/Hydraulic Long Ram Jack Piston Ram 8-Ton Capacity Cherry Crane Shop Engine Hoist Lift For Truck- 8.0 Lbs, ... Page 1 of 1 Start over Page 1 of 1 . Previous page. TCE 8 Ton Hydraulic Long Ram Jack with Single Piston Pump and Clevis Base (Fits: Garage/Shop Cranes, Engine Hoists, ... PITTSBURGH 3 Ton Super Heavy Duty Long Ram Flat Bottom Hydraulic Jack. PITTSBURGH. 3 Ton Super Heavy Duty Long Ram Flat Bottom Hydraulic Jack. Shop All PITTSBURGH. $5999. This long ram jack lifts up to 6000 lb., making it ideal for use on hydraulic cranes, engine hoists, and a wide variety of mechanic, truck, farm, and off-road applications. 10 Ton Professional Hydraulic Body Repair Kit. Shop All DAYTONA. +24 More. $35999. Compare to. PORTO-POWER B65115 at. $ 625.27. Save $265. This super duty portable hydraulic kit delivers up to 10 tons of ram force for frame repair, dent removal, and other pushing, pulling, and prying jobs. This long ram jack lifts up to 6000 lb., making it an ideal replacement for shop cranes. 8 Ton Super Heavy Duty Long-Ram, Round-Bottom Air/Hydraulic This long-ram jack lifts up to 16,000 lb. and has dual-power operation for pneumatic or manual lifting. Don't get scammed by emails or websites pretending to be Harbor Freight. Learn More For any difficulty using this site with a screen reader or because of a disability, please contact us at 1-800-444-3353 or [email protected] .

If you cannot locate your part below, please contact our tech support department at [email protected] or 570-546-9663. Please note: All parts ship out of our Springfield, Missouri facility. Ref #. Part #. Description. 1. PT27978001. HEX BOLT M22-2.5 X 50. California Proposition 65 Warning.Buy XtremepowerUS 8 Ton Air/Hydraulic Long Ram Jack Piston Ram 8-Ton Capacity Cherry Crane Shop Engine Hoist Lift For Truck- 8.0 Lbs, ... Page 1 of 1 Start over Page 1 of 1 . Previous page. TCE 8 Ton Hydraulic Long Ram Jack with Single Piston Pump and Clevis Base (Fits: Garage/Shop Cranes, Engine Hoists, ...Replacing a damaged fender panel on your Dodge Ram can help improve the appearance of the truck. You can remove the fender using only a ratchet and socket. The fender protects the ...If the Hydraulic Jack begins to lose power and efficiency, it may be a result of air being trapped in the hydraulic system. Follow the steps shown below to bleed the air from the hydraulic system. Caution: Make certain that the Hydraulic Jack is not under load while bleeding the system. 1. Remove Oil Tank’s Oil Plug (11). 2.The Arcan/Central Hydraulic 50 ton press from Harbor freight is $900 shipped. The cheapest Made in the USA is at least double that. How has the Arcan one been for anyone who owns it? Also like that it comes with the air option as well. The reviews for what they are worth on HF websites give it about 4.25 out of 5 stars.

The instructions read; “If air operations perform poorly; Connect the air inlet fitting to an air source (air compressor), use the handle to turn the release valve 1-1/2 turns counterclockwise and remove the Filler Plug by gently pulling (this is the rubber plug in the middle of the ram tube). Turn on the air valve to let the pump work for ...Homemade HF 8ton air over hydraulic conversion for my JD2 bender. A support bar reaches to the bottom of the ram to take the force as opposed to relying on a clamping force around the ram cylinder. Added a roller + plate assembly to take the ram’s cantilevered load - keeps everything level and true pump, ram, extension tubes, male connector, hydraulic spreader, wedge head, rubber head, serrated saddle, V-base, ram toe, plunger toe, flat base, heavy duty hydraulic hose, storage case Handle Length 19-11/16 in. Hose Length 5 ft. Jaw Opening 3-5/8 in. Shipping Weight 72.40 lb. Size(s) 10 Ton Travel Length (in.) 5 in. Working Load 20,000 lb ... Add to List. CENTRAL HYDRAULICS. 10,000 PSI Pneumatic Hydraulic Pressure Pump. $14999. Add to Cart. Add to List. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you! This long ram jack is ideal for use on hydraulic cranes, engine hoists, and a wide variety of shop, truck, farm, and off-road applications. Easy-to-use round bottom with pin hole mounts directly onto shop cranes; Load limiting valve prevents overlifting; Versatile ram extends from 24-3/4 in. to 43-1/2 in. Sturdy one-piece handle

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View Add to my manuals 12 Pages. Harbor Freight Tools 8 Ton Long Ram Air/Hydraulic Jack is a heavy-duty lifting tool designed for various applications requiring precise and controlled lifting. With an impressive 8-ton (16,000 lbs) lifting capacity, this jack is ideal for lifting heavy machinery, vehicles, and other large objects.Get our best deals and latest news delivered straight to you. Subscribe. No Hassle Return Policy. 100% Satisfaction Guaranteed. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut …PITTSBURGH. 8 Ton Super Heavy Duty Long Ram Round Bottom Hydraulic Jack. Shop All PITTSBURGH. $7999. Compare to. STRONGWAY 46217 at. $ 149.99. Save $70. This long ram jack lifts up to 16,000 lb., making it an ideal replacement for shop cranes.Choosing a harbor freight air over hydraulic ram brings several advantages. Their design prioritizes ease of maintenance and compatibility with a wide range of machinery. Users benefit from the adaptability of these cylinders, as they can be integrated into existing systems with minimal modification.

The basic press comes with a regular 20 ton hand operated hydraulic "bottle" jack. I replaced it with Harbor Freight's 20 ton air-over-hydraulic jack; the model that is exactly the same size as the one that came with the press. I added a release valve cylinder to the air-over-hydraulic jack, then added foot controls to extend and release … Add to List. PITTSBURGH. 12 Ton Air/Hydraulic Bottle Jack. $ 99. Add to Cart. Add to List. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you! Get our best deals and latest news delivered straight to you. Subscribe. No Hassle Return Policy. 100% Satisfaction Guaranteed. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you!hydraulic fluid level in the Ram. Then thoroughly test the Ram for proper operation prior to its actual use. If the Ram appears not to be working properly, it may be necessary to bleed its hydraulic system of excess air. To bleed the Ram: 1. Remove the Fluid Filler Plug. Insert the slot on the lower portion of the Handle over the Valve Release ...PITTSBURGH 3 Ton Super Heavy Duty Long Ram Flat Bottom Hydraulic Jack. PITTSBURGH. 3 Ton Super Heavy Duty Long Ram Flat Bottom Hydraulic Jack. Shop All PITTSBURGH. $5999. This long ram jack lifts up to 6000 lb., making it ideal for use on hydraulic cranes, engine hoists, and a wide variety of mechanic, truck, farm, and off …Kit is 100% complete with the exception of the 8 Ton Air/Hydraulic ram which cam be purchased HERE. Tube Bending, Notching & Digital Read Out Displays . See less See more ... The harbor freight air-over-hydraulic actuator works great with good control over the cylinder travel. Troy including a knob for the jack valve is a thoughtful …XtremepowerUS 8 Ton Air/Hydraulic Long Ram Jack Piston Ram 8-Ton Capacity Cherry Crane Shop Engine Hoist Lift For Truck- 8.0 Lbs, Red Recommendations TCE 8 Ton Hydraulic Long Ram Jack with Single Piston Pump and Clevis Base (Fits: Garage/Shop Cranes, Engine Hoists, and More) w/Handle, Blue, AT30806UThe hydraulic long ram jack has a double piston pump and clevis base that is designed for residential and commercial use. Fits most garage/shop cranes, engine hoists, and more. The lifting range is 24-13/16" to 44-1/8" with a 8 ton (16,000 lb) load capacity. This long ram jack is constructed of heavy-duty steel with a heat-treated chrome ...Old Dominion Freight Line News: This is the News-site for the company Old Dominion Freight Line on Markets Insider Indices Commodities Currencies StocksWe had issues with our Harbor freight Pittsburgh 8ton high lift air ram. We show how to bleed it, how to fill it, and how to use it on a Rogue Fab Bender!Wo...Find out everything you need to know about the de minimus safe harbor and how it might affect your business. The minimis safe harbor election allows small businesses to deduct expe...

PITTSBURGH 3 Ton Super Heavy Duty Long Ram Flat Bottom Hydraulic Jack. PITTSBURGH. 3 Ton Super Heavy Duty Long Ram Flat Bottom Hydraulic Jack. Shop All PITTSBURGH. $5999. This long ram jack lifts up to 6000 lb., making it ideal for use on hydraulic cranes, engine hoists, and a wide variety of mechanic, truck, farm, and off-road applications.

Don't get scammed by websites pretending to be Harbor Freight. Learn More For any difficulty using this site with a screen reader or because of a disability, please contact us at 1-800-444-3353 or [email protected] .PITTSBURGH AUTOMOTIVE. 10 ton Hydraulic Short Body Ram. Shop All PITTSBURGH AUTOMOTIVE. $5499. Compare to. PORTO-POWER B65441 at. $ 239.99. Save $185. Work in tight spaces with this short ram Read More. Lift trucks, farm vehicles and more with this 20 ton air/hydraulic bottle jack. This industrial jack lifts up to 40,000 lb. with little effort. The 48 in. long air hose provides the option to power this hydraulic jack with air. Rugged cast iron base; Precision machined steel ram; Safety spring ram retention; Twist top for additional height The formed version of the JD-2 Model 32 is rated up to .120 wall material. If you are bending thicker wall material, .188 or larger you will need our machined air/hydro ram mount. Please note that this kit is 100% complete, however it does not come painted. The tube bender as well as the 8 ton ram is not included.Hydraulic jacks that leak down have broken or damaged seals and piston rings somewhere in the jack. One of the benefits of having a high-quality hydraulic floor jack is that the ja...pump, ram, extension tubes, male connector, hydraulic spreader, wedge head, rubber head, serrated saddle, V-base, ram toe, plunger toe, flat base, heavy duty hydraulic hose, storage case Handle Length 19-11/16 in. Hose Length 5 ft. Jaw Opening 3-5/8 in. Shipping Weight 72.40 lb. Size(s) 10 Ton Travel Length (in.) 5 in. Working Load 20,000 lb ...

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Get our best deals and latest news delivered straight to you. Subscribe. No Hassle Return Policy. 100% Satisfaction Guaranteed. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you!Phoenix Sky Harbor will relocate five airlines to Terminal 3 as it prepares to close Terminal 2. Travelers flying through Phoenix Sky Harbor next week best take note of what termin...This 8-Ton Capacity Strongway Long Ram Air/Hydraulic Jack helps you convert your existing hydraulic hoist to a convenient and fast hydra/pneumatic hoist. This is a quick way to raise loads without the backache. A must have for hydraulic cranes, engine hoists and a wide variety of applications. Mounts directly onto most shop cranes. Vertical use ...Hydraulic Rams. Enerpac hydraulic rams are available in a dozen different capacities - from 5 to 1000 tons. Whatever the industrial application; lifting, pushing, pulling, bending, holding, whatever the force capacity, stroke length, or size restrictions, single- or double-acting, solid or hollow plunger, you can be sure that Enerpac has the ... PITTSBURGH AUTOMOTIVE. 22 ton Air/Hydraulic Floor Jack. Shop All PITTSBURGH AUTOMOTIVE. $37999. Compare to. STRONGWAY 46248 at. $ 399.99. Save $20. Lift loads up to 44,000 lb. with this hydraulic floor jack Read More. This long ram jack is ideal for use on hydraulic cranes, engine hoists, and a wide variety of shop, truck, farm, and off-road applications. Easy-to-use round bottom with pin hole mounts directly onto shop cranes; Load limiting valve prevents overlifting; Versatile ram extends from 24-3/4 in. to 43-1/2 in. Sturdy one-piece handleDon't get scammed by emails or websites pretending to be Harbor Freight. Learn More For any difficulty using this site with a screen reader or because of a disability, please contact us at 1-800-444-3353 or [email protected] .19-Mar-2016 ... I drained out all the fluid and used an air hose at 10lbs of air to blow out the old fluid as I plan to put new in, now the cylinder is set in a ...If you’re a DIY enthusiast or a professional looking for affordable tools and equipment, Harbor Freight is likely a name that has crossed your radar. With over 1,000 stores across ...Get our best deals and latest news delivered straight to you. Subscribe. No Hassle Return Policy. 100% Satisfaction Guaranteed. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you!Hydraulic Pump to Hydraulic Ram. 1. Close Release Valve tightly. 2. Do not exceed maximum PSI or range of travel for Hydraulic Ram. 3. Purge air from Hydraulic Pump system. 4. Add oil to proper level. 5. Make sure connection from Hydraulic Pump to Hydraulic Ram is secure. Hydraulic Ram will push or pull, but will not maintain … ….

Lift trucks, farm vehicles and more with this 20 ton air/hydraulic bottle jack. This industrial jack lifts up to 40,000 lb. with little effort. The 48 in. long air hose provides the option to power this hydraulic jack with air. Rugged cast iron base; Precision machined steel ram; Safety spring ram retention; Twist top for additional heightFind out everything you need to know about the de minimus safe harbor and how it might affect your business. The minimis safe harbor election allows small businesses to deduct expe... Inside Track Club members can buy the PITTSBURGH 8 Ton Long Ram Air/Hydraulic Jack (Item 58816) for $99.99, valid through January 4, 2024. Compare our price of $99.99 to STRONGWAY at $189.99 (model number: 46200). Save $90 by shopping at Harbor Freight. This long-ram hydraulic jack has a 19 in. stroke for plenty of lift. Harbor Freight Tools is a popular brand among DIY enthusiasts and professional mechanics alike. Their affordable prices and high-quality products have made them a go-to option for ...Stark USA Stark compatible with All Terrain Vehicle 8-Ton Double Cherry Picker Pump Long Hydraulic Ram Jack Engine Lift Hoist Manual w/Handle. dummy. XtremepowerUS 8 Ton Air/Hydraulic Long Ram Jack Piston Ram 8-Ton Capacity Cherry Crane Shop Engine Hoist Lift For Truck- 8.0 Lbs, Red. dummy. BAOSHISHAN 4 Ton …PITTSBURGH AUTOMOTIVE. 20 ton Hydraulic Short Body Ram. Shop All PITTSBURGH AUTOMOTIVE. $6499. Compare to. OTC OT4142 at. $ 529.71. Save $465. Work in tight spaces with this short ram Read More.hydraulic fluid level in the Ram. Then thoroughly test the Ram for proper operation prior to its actual use. If the Ram appears not to be working properly, it may be necessary to bleed its hydraulic system of excess air. To bleed the Ram: 1. Remove the Fluid Filler Plug. Insert the slot on the lower portion of the Handle over the Valve Release ...12 Ton Air/Hydraulic Bottle Jack. Shop All PITTSBURGH. +1 More. $11999. Compare to. SUNEX TOOLS 4412AH at. $ 321.99. Save $202. This industrial-strength hydraulic jack can be operated manually or with a 110-120 PSI air supply.If the Hydraulic Jack begins to lose power and efficiency, it may be a result of air being trapped in the hydraulic system. Follow the steps shown below to bleed the air from the hydraulic system. Caution: Make certain that the Hydraulic Jack is not under load while bleeding the system. 1. Remove Oil Tank’s Oil Plug (11). 2. Harbor freight air over hydraulic ram, T27978 50-Ton Air/Hydraulic Shop Press For your toughest pressing and stamping needs. The T27978 50-Ton Air/Hydraulic Shop Press features a fast-pump core that allows the head assembly to lower to the workpiece quicker than a slow-pump core, a hand-operated winch for raising and lowering the bed, and a spring return ram for faster retraction. <p>The two-speed pump operates the ram at a slow or ... , The Harbor Freight / Strongway 8-Ton Long Ram Air/Hydraulic Jack — Single Piston, Clevis Base Northern Tool I much needed addition to your garage. Be …, Hydraulic Pump to Hydraulic Ram. 1. Close Release Valve tightly. 2. Do not exceed maximum PSI or range of travel for Hydraulic Ram. 3. Purge air from Hydraulic Pump system. 4. Add oil to proper level. 5. Make sure connection from Hydraulic Pump to Hydraulic Ram is secure. Hydraulic Ram will push or pull, but will not maintain …, Make a tee style adapter that fits on the end of the ram, that's how I did it on my Model 3. Find a piece of tubing with an ID that fits the OD of the ram (or machine one), drill a hole though the side for the .625" ram bolt, take another piece of tubing with a 1.000" ID (or machine one for a precise fit) and make it the length of the distance between the bender arms which will be the same ..., Get our best deals and latest news delivered straight to you. Subscribe. No Hassle Return Policy. 100% Satisfaction Guaranteed. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you!, This will require drilling and taping the oil passage in the motor body and ram housing so a hydraulic hose can be fitted but I need to know if this will work or do I need to modify the the entry point of the oil into ... if I were to invert my Harbor Freight air over hydraulic jack, all I would need to do is to add a reservoir ..., Lift trucks, farm vehicles and more with this 20 ton air/hydraulic bottle jack. This industrial jack lifts up to 40,000 lb. with little effort. The 48 in. long air hose provides the option to power this hydraulic jack with air. Rugged cast iron base; Precision machined steel ram; Safety spring ram retention; Twist top for additional height , Here’s why Chrome uses so much RAM—and the steps you can take to curb its gluttony. Google Chrome is one of the most popular web browsers around, but it uses an exorbitant amount o..., Air source a. never connect to an air source that is capable of exceeding 120 psi. Over pressurizing the tool may cause bursting, abnormal operation, breakage of the tool or serious injury to persons. Use only clean, dry, regulated compressed air at the rated pressure or within the rated pressure range as marked on the tool. Always, Get our best deals and latest news delivered straight to you. Subscribe. No Hassle Return Policy. 100% Satisfaction Guaranteed. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you!, Dec 9, 2011 · Upon receipt of the bender, I noted that the stationary arms have 1” holes in which the hydraulic ram, that JD2 supplies, mounts and pivots with no bushings. I also noted that a recently purchased Harbor Freight air over hydraulic ram will easily fit between the arms. , Get our best deals and latest news delivered straight to you. Subscribe. No Hassle Return Policy. 100% Satisfaction Guaranteed. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you! , This 8-Ton Capacity Strongway® Long Ram Air/Hydraulic Jack helps you convert your existing hydraulic hoist to a convenient and fast hydra/pneumatic hoist. This is a quick way to raise loads without the backache. A must have for hydraulic cranes, engine hoists and a wide variety of applications. Mounts directly onto most shop cranes. , Air Hydraulics Ram Assembly C3-RCA For 5.5 Ton Air Over Oil Press C-300 & C-300A. Pre-Owned. $950.00. goodtoolfinder (4,998) 100%. or Best Offer. +$33.93 shipping. Sponsored. 8 Ton Air Power Powered Over Hydraulic Long …, Coupons for PITTSBURGH Hydraulic Auto Body/Frame Repair Kit – 7 Pc. – Item 94681 / 60726. PITTSBURGH Hydraulic Auto Body/Frame Repair Kit – 7 Pc. – Item 94681 / 60726. Compare our price of $199.99 to XTREMEPOWERUS at $549.95 (model number: X6084). Save $339.96 by shopping at Harbor Freight., Get our best deals and latest news delivered straight to you. Subscribe. No Hassle Return Policy. 100% Satisfaction Guaranteed. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut …, Get our best deals and latest news delivered straight to you. Subscribe. No Hassle Return Policy. 100% Satisfaction Guaranteed. Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut …, 9315 posts · Joined 2007. #17 · Dec 25, 2013. Great advise, same thing I did. I got 8"x8" cut in pairs from 1/2"-3/4" and 1" and also 2"-3"-4"x8" in pairs out 3/4" plate. Best $30 ever spent after one of the hf plates exploded and almost killed me. I do math and stuff, on a professional level. Like., Stark USA Stark compatible with All Terrain Vehicle 8-Ton Double Cherry Picker Pump Long Hydraulic Ram Jack Engine Lift Hoist Manual w/Handle. dummy. XtremepowerUS 8 Ton Air/Hydraulic Long Ram Jack Piston Ram 8-Ton Capacity Cherry Crane Shop Engine Hoist Lift For Truck- 8.0 Lbs, Red. dummy. BAOSHISHAN 4 Ton …, Don't get scammed by emails or websites pretending to be Harbor Freight. Learn More For any difficulty using this site with a screen reader or because of a disability, please contact us at 1-800-444-3353 or [email protected] ., Hydraulic Pump to Hydraulic Ram. 1. Close Release Valve tightly. 2. Do not exceed maximum PSI or range of travel for Hydraulic Ram. 3. Purge air from Hydraulic Pump system. 4. Add oil to proper level. 5. Make sure connection from Hydraulic Pump to Hydraulic Ram is secure. Hydraulic Ram will push or pull, but will not maintain pressure. 1., As of 2014, Harbor Freight Tools does not offer franchises. The company owns all of its stores and operates a real estate department that assesses potential locations for future st..., The formed version of the JD-2 Model 32 is rated up to .120 wall material. If you are bending thicker wall material, .188 or larger you will need our machined air/hydro ram mount. Please note that this kit is 100% complete, however it does not come painted. The tube bender as well as the 8 ton ram is not included. , 136 votes, 11 comments. 106K subscribers in the harborfreight community. A sub-reddit dedicated to Harbor Freight and reviewing their tools. Skip to ... Homemade HF 8ton air over hydraulic conversion for my JD2 bender. A support bar reaches to the bottom of the ram to take the force as opposed to relying on a clamping force around ..., The formed version of the JD-2 Model 32 is rated up to .120 wall material. If you are bending thicker wall material, .188 or larger you will need our machined air/hydro ram mount. Please note that this kit is 100% complete, however it does not come painted. The tube bender as well as the 8 ton ram is not included. , Converting a Harbor Freight Motorcycle Lift Table to Air/Hydraulic. The first factory pump leaked, Replaced it from HF but I don't trust the 2nd one to last ..., If you’re looking for high-quality tools at affordable prices, Harbor Freight Tools should be your go-to destination. With over 40 years of experience in the industry, Harbor Freig..., , If you’re a DIY enthusiast or a professional tradesperson, having the right tools is essential. One brand that has gained popularity among tool users is Harbor and Freight Tools. O..., Don't get scammed by emails or websites pretending to be Harbor Freight. Learn More For any difficulty using this site with a screen reader or because of a disability, please contact us at 1-800-444-3353 or [email protected] ., This long ram jack is ideal for use on hydraulic cranes, engine hoists, and a wide variety of shop, truck, farm, and off-road applications. Easy-to-use round bottom with pin hole …, If the Hydraulic Jack begins to lose power and efficiency, it may be a result of air being trapped in the hydraulic system. Follow the steps shown below to bleed the air from the hydraulic system. Caution: Make certain that the Hydraulic Jack is not under load while bleeding the system. 1. Remove Oil Tank’s Oil Plug (11). 2., Subject: RE: AIR MOTOR PROBLEMS ON 20-TON AIR HYDRAULIC BOTTLE JACK. Also wondering if you rolled or twisted the O-rings, causing the blow by, due to too much friction. Check for tears on O-ring, add pneumatic tool oil, clean port for shuttle valve. Work back and forth a couple times to insure smooth movement.