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12 TON
AIR HYDRAULIC JACK
94487
ASSEMBLY & OPERATING INSTRUCTIONS
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
Due to continuing improvement, actual product may differ slightly from the product described herein.
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Website at www.harborfreight.com
©
®
Copyright 2006 by Harbor Freight Tools . All rights reserved. No portion of this manual or
any artwork contained herein may be reproduced in any sh
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THANK YOU for choosing a HARBOR FREIGHT TOOLS product. For future reference, please complete the owner’s record below: Model______________ Serial No._____________ Purchase Date_______________ SAVE THE RECEIPT, WARRANTY AND THESE INSTRUCTIONS. It is important that you read the entire manual to become familiar with the unit BEFORE you begin assembly. Technical Specifications Minimum Height 10-1/4” Inlet Valve Universal 1/4”-18 NPT Maximum Height 20-1/8” Ram Diameter 1-11/16” Air Flow Requ
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any other condition that may affect its safe operation. Many accidents are caused by poorly maintained jacks. 11. Jack service must be performed only by qualified repair personnel. Service or mainte- nance performed by unqualified personnel could result in a risk of injury. 12. When servicing a jack, use only identical replacement parts - refer to the Parts List on page 8 and Assembly Diagram on page 9 of this manual. Follow instructions in the “In- spection, Maintenance, And Cleaning” sect
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26. Use extreme caution when applying or releasing a load. Never allow the load to suddenly release. Slowly and carefully apply and release the load. 27. Do not allow anyone in the vehicle while using the Bottle Jack. Keep all bystanders a safe distance away from the vehicle. 28. Never leave the Bottle Jack unattended when the Jack is under a load. 29. Never support both ends of the vehicle at the same time. 30. Before lowering the Bottle Jack, make sure tool trays, jack stands, and all oth
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Bleeding the System (Cont’d) 4. Once air is bled, check the Oil Fill Hole and, if necessary, top off the Oil Fill Hole with hydraulic oil. Then, replace the Oil Filler Plug. 5. Test the Jack several times for proper operation before attempting to lift a load. If, after purg- ing, the Jack still does not appear to be working properly, do not use the Jack until it has been repaired by a qualified service technician. Figure 1 Figure 2 Spring Plate (20) Filler Plug (16) Release Valve (4) Hand
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Lowering the Jack Caution: Avoid rapid descent of the load by turning the Release Valve slowly. 1. Make sure the Lock Lever (A27) is released to stop the air flow to the Air Motor (42). 2. If attached, remove the Air Supply Hose (43) from the Air Inlet Fitting. 3. Place the slotted end of the Handle (45) onto the Release Valve. 4. Slowly and carefully lower the load by turning the Release Valve counterclockwise in very small increments. Only use the Handle (45), never use your hand to turn th
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Troubleshooting POSSIBLE SYMPTOMS PROBABLE SOLUTION (Make certain that the jack is Jack will not Handle moves Saddle lowers Pump stroke Saddle will not Oil leaking from not supporting a load while at- lift at its weight up when jack is under load feels spongy lift all the way filler plug tempt-ing a solution.) capacity under load Check that Release Valve is closed X X fully. Valves may be blocked and may not close fully. To flush the valves: 1. Lower the Saddle and securely close the Rel
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Parts List-Main Body Part Description Q’ty Part Description Q’ty Part Description Q’ty 1 Base 1 16 Filler Plug 1 32 R-Pin 3 17 Nylon Ring 1 33 Connector 1 2 Ball 6 18 Top Nut 1 34 Handle Bracket 1 3 Seal 1 19 O-Ring 1 35 Ball 1 4 Release Valve 1 20 Spring Plate 1 36 Ball Cup 1 5 Ball Cup 2 21 Spring 1 37 Spring 1 6 Spring 1 22 Eye Bolt 1 38 Screw 1 7 Spring 1 23 Nut 1 39 O-Ring 1 8 Screw 2 24 Lock Washer 1 40 Screw 1 9 Nylon Ring 1 41 Plastic Cap 1 25 Washer 2 10 Cylinder 1 26 Pump Cylinder 1 42
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Assembly and Parts Diagram-Main Body Note: Some parts are listed and shown for illustration purposes only and are not available individu- ally as replacement parts. SKU 94487 For technical questions please call 1-800-444-3353. Page 9
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Assembly and Parts Diagram-Air Motor PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL
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LIMITED 90 DAY WARRANTY Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of ninety days from the date of purchase. This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, or to lack of maintenance. We shall in
