Operation , Service & Maintenance Guidelines Weaver
Contents
1. Always use stands to support vehicle before attempting under vehicle repairs or Inspections Always follow OSHA Workplace Safety standards 1 Use the Jack on a smooth hard and level surface only Use the Jack only as a lifting device only 2 Test the Jack by using the foot pedal only to raise the saddle to full height without a load The pedal should become very tight If not check the oil level or see the troubleshooting section 3 The Jack 1s easily maneuvered by depressing the Handle Lock Lever until the lock rod engages one of the two handle positions and then pivoting the Jack on Its rear casters 4 Place the jack in position so that the saddle will engage an approved lifting area of the vehicle The saddle 1s raised to the contact point by the foot pedal Lift the load using the long handle do not lift loads with the foot pedal alone On low clearance vehicles It Is often advantageous to operate the foot pedal by hand while watches to assure proper saddle contact Surface on which Jack rests should be fairly flat to prevent twisting of the frame Load should be centered in the saddle 5 Pump with handle for easy lifting Do not attempt to raise the jack beyond its travel stops 6 To lower the load pull back gently on the release lever Always lower the load slowly 7 Be certain that area beneath vehicle is clear before lowering the vehicle Always use the release lever lock to prevent unintentional operation of the release lev2. Company TIP It is best to order the complete kit initially rather than order individual parts as it usually turns out that you will need multiple if not all the parts in the Kit You will end up saving money as individual part prices will exceed the kit cost not to mention that you would incur additional shipping costs To tt Free 888 274 8490 Astle UIPMENT hama E MAIL CASTLE AMERITECH NET CRF De diese we eo WEBSITE www CASTLEEQUIPMENT COM P O Box 3 Bratpwoop IL 60408
3. WEAVER L FREE 888 274 8490 Castle aaa PME N T x Cr wi E sa Weaver Jack Operation and Service Instructions WA 72B 2 Ton Model WA 75B 10 Ton Model WA 73B 4Ton Model WA 85 20 Ton Model pore Handle Lock Lever Handle Set Screw Release Lever Lock LA RE Lock Rod TER SLR Valve Plug Filler Plug amp Reservoir gt lt Vent Hole Manual Contents New Jack Assembly e Jack Operation amp Use e Preventive Maintenance Trouble Shooting amp Adjustments Weaver Jack Model Specifications MODEL CAP FRONT WHEELS SADDLE STYLE FRAME JACK tons AND SIZE LENGTH WEIGHT WA 72B 2 Two 4 Triangular or 51 136 Ibs Diameter Round 5 to 6 WA 73B Two 5 Triangular or 58 212 Ibs Diameter Round 5 to 6 WA 75B 10 Two 7 Round 356 Ibs Diameter 9 WA 85 20 Three 7 Square 531 lbs Diameter 7 WA 72B 2 ton WA 73B 4 ton WA 75B 10 ton WA 85 20 ton To Assemble Your New Weaver Jack 1 Check the handle set screw for tightness 2 On the WA 85 20 Ton Jack only Remove and discard the vent filler plug This is very important as the vent hole must always be kept open so the Jack can breathe The other models have a breathable vent built into the cap 3 Loosen the Piston Ram and Pump Packing Nuts slightly They are tightened all the way down at the factory for shipment Tighten until no oil seeps out They only need to be moderately tight To Operate the Jack WARNING
4. er To Refill with Oil Remove the filler plug and with the saddle DOWN put InAW 32 Light Hydraulic Oil or oil that meets MILeFe17111 O11 specifications until the level comes up to within 1 4 to 3 8 below filler hole Overfilling will cause oil to spurt out the vent hole as the Jack Is lowered or may prevent Jack from lowering properly Insufficient oil will cause the Jack to 11ft only part way Always be sure to put in oil only when the saddle is all the way down Be caretul not to let any dirt get into the reservoir while the Filler Plug Is out Do not use brake fluid transmission fluid or any other fluids doing so could damage the seals and cause jack failure Overload Protection The Lowering Valve Release Valve is also designed to work as an overload protection device If you attempt to raise a load that exceeds the jack s rated capacity this valve will automatically release the cylinder pressure as an overload protection safety feature Safety Precautions Follow OSHA Standards and ASME PALD Part 10 Instructions Never exceed the Jack s rated load capacity Only lift vehicles at the recommended lift points found in the vehicle s service manual Eye protection should be worn per OSHA recommendations Always use the Jack on smooth hard and level surfaces while keeping the load centered on the saddle Always check the Jack prior to each use do not attempt to use the Jack 1f any defect 1s observed Do not add accessori
5. es or modity the Jack in any way Always use Jack Stands under the vehicle and stay clear when lifting or lowering the vehicle Preventive Maintenance 1 Inspect the jack before each use Take corrective action before using the jack is a leak or defect is found 2 Keep all working parts thoroughly lubricated Keep Jack clean Dirt is the major cause of Jack failure and all openings should be kept free of debris 3 Packing nuts at the piston and pump plunger should be kept moderately tight These Packings are NOT under high pressure and should only be tight enough to prevent leakage 4 Keep oil filled to within 1 4 to 3 8 of fill opening Replace oil at least once a year 5 Ball Valve may be removed for Inspection and cleaning by removing the Ball Chamber Plug V and using a small magnet remove the balls X amp Z and the ball weight Y See Diagram IMPORTANT Whenever it is necessary to loosen or remove the Ball Chamber Plug the Gasket W should be replaced with a new one Oil leakage at this point is usually caused by trying to reuse an old gasket over again 5 Troubleshooting SYMPTOMS CORRECTIVE ACTION 1 Jack will not raise saddle 1 Check the oil level 2 Perform the Ball Valve Test 1 The jack is overfilled with oil 1 It may be low on oil Check and refill 2 Oil spurts out the vent hole 3 Jack will only lift part way up 4 Jack will not lift a load 1 Check for proper oil level 2 If pum
6. ping falls to raise the rated load the lower ball valve may be leaking and it should be inspected for dirt or other obstructions This means that the upper ball valve may be leaking and it should be inspected for dirt or other obstructions 5 If the load rises on the down stroke of the handle and then immediately settles back down while forcing the jack handle up 1 The Release Handle may not be closed 2 The Release Valve may be leaking Replace the release valve packing housing O Rings 3 The Release Needle Valve may need to be adjusted 6 Jack bleeds down while under load 7 Jack only rises on half stroke This means that the jack may be Air Bound and then settles back down while forcing the handle up To Relieve When Air Bound 1 Should the oil supply run too low the Jack may become air bound and work on only a half stroke of the handle Fill the jack with oil and then raise the saddle and then using the Release Lever lowering lever lower the saddle while holding the fool pedal depressed This will flush out any air in the system and excess oil may then run out of the vent Repeat if necessary Be sure that the jack 1s properly filled with oil before putting it back in service Oil should cover the piston rod If you cannot pump the Jack Saddle to full height raise the Saddle by hand and then perform this operation Ball Valve Test If the Jack will not raise at all then the Ball Valve may be obst
7. ructed by debris Open the Release Valve and keep it open Raise the Saddle lift arm manually to full height Now lower the Saddle by pushing it all the way down this will flush out any debris in the Ball Seats Close the release valve and try to pump up the Jack If it now will raise and hold then the Ball Valve may need to be serviced 6 i AA pedi ento SAT pre Valve Group ci j Release Valve Group and Ball Valve Pump Assembly lower Assembly Derail DI s Ball Valve Replacement Ball Valve Replacement 1 Remove the Ball Chamber Plug V Remove the Two Balls X amp Z and the Ball weight Y 2 Reassemble with the two new Balls X amp Z New Plug Gasket W and Ball Weight Y reuse the existing Ball weight Ball Weight is installed between the two balls IMPORTANT Whenever it is necessary to loosen or remove the Ball Chamber Plug the Gasket W should be replaced with a new one Oil leakage at this point is usually caused by trying to reuse an old gasket over again Release Group Needle Valve Adjustment Release Group Needle Valve Adjustment In the release group assembly the spring governs the load that the Jack will lift When the pressure within the cylinder overcomes the spring tension then the release valve floats off the seat It is Imperative that the release valve floats freely in the release group assembly To check use your forefinger and thumb to grasp the release valve where the relea
8. se clevis pin passes thru and wiggle from side to side There should be a minimum of 002 to 004 clearance in the Release Vale Guide OO If no movement is noted follow these steps Refer to the above Diagram Measure accurately the distance from the Bracket O to the first Nut P on the compression spring Write this measurement down This is approximately 2 inches Remove Nuts P amp Q the Spring the Valve Rod N and the Valve Guide OO It is not necessary to loosen the Packing Nut Next insert the Valve Rod N thru the Bracket s O opening slide the Release Valve Guide OO onto the rod but not seated in the hole and insert the rod N into the Packing Nut s R opening Gently Tap the end of the release rod N with a hammer until it stays firmly seated in the internal needle seat Slide the Release Valve Guide OO towards the Bracket O normally it will smoothly fit into the bracket hole and then noting where the center alignment of the rod in the bracket hole is off Tap the welded bracket accordingly with a hammer to gently bend the bracket and correct the misalignment It 1s in alignment when you can smoothly slide the Valve Guide into the Bracket s hole Reassemble the Release Valve and parts Tighten the adjusting nut P to the original dimension that you wrote down and lock this nut with Nut Q and then test the Jack for proper operation Seal Kits for Weaver Jacks are available from Castle Equipment
Download Pdf Manuals
Related Search