Harbor Freight Tools AIR/OVER HYDRAULIC JACK 41487 user manual

Summary of the content on the page No. 1

AIR/OVER HYDRAULIC JACK AIR/OVER HYDRAULIC JACK
AIR/OVER HYDRAULIC JACK AIR/OVER HYDRAULIC JACK AIR/OVER HYDRAULIC JACK
20 TON 20 TON 20 TON
20 TON 20 TON
41487
ASSEMBLY AND OPERATING
INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
Copyright © 1999 by Harbor Freight Tools. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or
form without the express written consent of Harbor

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Specifications IN TEM DESCRIPTIO Cm apacity 20 tons maximu 10-3/8 inch (minimum) Height Movement 20-1/4 inch (maximum) Rh am 2.12 inch diameter; 6-1/2 inch lengt AT ir Inlet Fitting 1/4 inch NP W. eight 36.6 lbs B" ase Dimensions 7-1/2" x 4-3/4 3/8 inch (O.D.) x 48 inches long with Air Hose crimped hose fittings AI ir Pressure 90 - 125 PS Save This Manual You will need the manual for the safety warnings and precautions, assembly instructions, operating and maintenance procedures, parts list and

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9. Store idle equipment. When not in use, tools must be stored in a dry location to inhibit rust. Always lock up tools and keep out of reach of children. 10. Do not force tool. It will do the job better and more safely at the rate for which it was intended. Do not use inappropriate attachments in an attempt to exceed the tool capacity. 11. Use the right tool for the job. Do not attempt to force a small tool or attachment to do the work of a larger industrial tool. Do not use a tool for a p

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Warning: The warnings, cautions, and instructions discussed in this in- struction manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator. Unpacking When unpacking, check to make sure the following parts are included. If any parts are missing or broken, please call Harbor Freight Tools at the number on the cover of this m

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7. Press the Lever (1.13) to the On position and lock using the Lock Lever (1.17) This provides a continuous air supply to the Air Pump (4). 8. Raise the Jack by alternately lifting and lowering the Handle assembly. Extension Screw (44) Connector (3) Air Hose (2) Handle fits in Handle Sleeve (7) Air Pump (4) Release Valve (18, 21) Lever (1.13) and Lever Lock (1.17) Handle (5, 6) Hose Connector (1.1) Lowering Caution: Avoid rapid descent of the load. Turn the Release Valve slowly. 1. Release

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Purging Air from the Hydraulic System Air bubbles can become trapped inside the hydraulic system thereby reducing the efficiency of the Jack. Purge the air from the system if lift efficiency drops. 1. Place the slotted end of the Handle (5, 6) assembly over the Valve Release screw (18, 21) and turn 1-1/2 turns counterclockwise. 2. Remove the oil Filler Plug (23) on the side of the jack Reservoir (37) by gently pulling and turning it. 3. Rapidly pump the Handle assembly several times to purge the

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Parts List Pn artD. escriptio Qt tyPn arD. escriptio Qty 1r .1H1 ose Connecto 1w 8R1 lease Valve Scre 1t .2C1 onnecting Nu 1l 9R1 elease Valve Sea 1r .3 A1 ir Filte 25 0S1 teel Ball 6.3 14 .4O1 -ring 18 X 2. 2n1 P1 i 1r .5C1 onnecto 2g 2V2 alve Sprin 1y .6V1 alve Bod 2g 3 F1 iller Plu 1g .7 S1 prin 2w 4 S2 cre 1g .8 P1 ackin 2w 5P1 lug Scre 1e .9 T1 hrottl 2r 6P1 lunge Washe 16 .10O1 -ring 3 X 1. 2w 7O1 verload Valve Scre 14 .11O1 -ring 18 X 2. 2g 8S1 afety Valve Sprin 1t .12 N1 u 2e 9T1 apering

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Assembly Drawing REV 05/04 SKU 41487 Page 8