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AIR/OVER HYDRAULIC 20 TON
JACK
Model 96147
ASSEMBLY AND OPERATING INSTRUCTIONS
Due to continuing improvements, actual product may differ slightly from the product described herein.
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
TO PREVENT SERIOUS INJURY, READ AND UNDERSTAND
ALL wARNINGS AND INSTRUCTIONS BEfORE USE.
Copyright © 2007 by Harbor Freight Tools. All rights reserved. No portion of this manual or
any artwork contained herein may be
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SPECIfICATIONS Capacity 20 Ton Maximum 10-3/8” Minimum Height 20-1/4” Maximum (with screw extended) Ram 2.12” Diameter x 6-1/2” travel Air Inlet Fitting 1/4” NPT Weight 37 Pounds Base Dimensions 9-7/8” L x 6-1/2” W Air Hose 3/8” x 46-1/8” L with crimped hose fittings Air Pressure 70 - 150 PSI Save This Manual You will need the manual for the safety warnings and precautions, assembly instructions, operating and maintenance procedures, parts list and diagram. Keep your invoice with this manual.
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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 purpose for which it was not intended. 12. Dress properly. Do not wear loose clothing or jewelry as they can be caught in mov- ing parts. Protective, electrically non-conductive clothes and non-skid footwear are recommended when working. Wear restrictive hair covering to contain long hair. 13. Use eye and ear protection. Always wear A
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ASSEMBLY 1. Screw the Pump Elbow (3) into the Air Pump (4) and tighten. 2. Connect the Air Hose (2) to the Pump Elbow (3). 3. Connect the other end of the Air Hose to the Air Valve Body (1.6) 4. Connect the two pipe Handles (5, 6) together. 5. Check level of hydraulic oil, fill if necessary (See “Oil Replacement” section of manual for directions). OPERATION Lifting 1. Test Jack to ensure proper working condition before use, raise and lower ram to see if operation is smooth and without hitch.
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Extension Screw (44) fIGURE A Air Pump (4) Handle (5,6) in Handle Sleeve (7) Pump Elbow (3) Release Lever (1.13) and Valve (18) Lock Lever (1.17) Hose Connector (1.1) Air Hose (2) Hose Band (1.16) Lowering Caution: Clear tools from underneath the load before lowering. Keep hands and feet clear. Before lowering the Jack, the operator must ensure that all bystanders are free and clear of the load before continuing. Caution: Avoid rapid descent of the load. Turn the Release Valve slo
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MAINTENANCE General Care 1. Periodically lubricate the joints and Extension Screw (44) with a light oil as needed. 2. Clean the outside of the Jack with a dry, clean cloth. 3. If the Jack is exposed to moisture, wipe dry with a clean cloth and lubricate as noted above. 4. Store jack with Extension Screw (44) and Ram (48) fully collapsed. 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 fr
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PARTS LIST Part Description Qty Part Description Qty 1.1 Hose Connector 1 18 Release Valve 1 1.2 Connecting Nut 1 19 Release Valve Seal 1 1.3 Air Filter 1 20 Steel Ball 6.35 1 1.4 O-Ring 18 X 2.4 1 21 Pin 1 1.5 Connector 1 22 Valve Spring 2 1.6 Valve Body 1 23 Filler Plug 1 1.7 Spring 1 24 Screw 2 1.8 Packing 1 25 Plug Screw 1 1.9 Throttle 1 26 Plunge Washer 1 1.10 O-Ring 3 x 1.6 1 27 Overload Valve Screw 1 1.11 O-Ring 18 x 2.4 1 28 Safety Valve Spring 1 1.12 Nut 1 29 Overload Tapering Valve 1 1
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ASSEMBLY DRAwING SKU 96147 for technical questions, please call 1-800-444-3353. Page 8
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PUMP DIAGRAM Part Description 30 1A Removable Base 2A Hex-Socket Screw 29 3A Cover 4A O-ring 5A Air Pump Body 28 6A Spring Washer 7A Seal 8A O-ring 9A Square Ring 10A Piston 11A Nut 12A Block 13A Plunger Cover 14A Spring 15A Nut 16A Packing Guide 17A NL Retainer 18A Y Seal 19A Cover 20A Adjusting Nut 21A Plunger Cover 22A Cover 23A Thread Seal 24A O-ring 25A Shuttle Valve 26A O-ring 27A O-ring 28A Sponge 31 29A Muffler 30A Bolt 31A Washer Remember to include the “A” when ordering parts from this
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LIMITED 1 YEAR / 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 for a period of one year from date of purchase that the tank is free of defects in materials and workmanship (90 days if used by a professional contractor or if used as rental equipment). Harbor Freight Tools also warrants to the original purchaser, for a period of ninety days from date of purchase, t
