Harbor Freight Tools 92840 User Manual

AIR FLOOR JACK

®

25 TON / 50 TON

Model 92840

ASSEMBLY and OPERATING

INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at http://www.harborfreight.com

TO PREVENT SERIOUS INJURY OR DEATH,

READ AND UNDERSTAND ALL WARNINGS

AND INSTRUCTIONS BEFORE USE.

Copyright© 2005 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 Freight Tools.

For technical questions and replacement parts, please call 1-800-444-3353

Specifications

Lift Capacity 25 Tons (Stage 2) to 50 Tons (Stage 1)
Lifting Range 8-5/8” to 13-1/4” (Stage 1)

13-1/4” to 19-1/8” (Stage 2)
Air Inlet 1/4”-18 NPT
Maximum Air Pressure 200 PSI
Minimum Air Pressure 150 PSI
Air Requirements 9.5 CFM
Overall Dimensions 40” L x 10-1/2” W x 60-1/4”
Ram (2) Diameter 2-3/4”
Weight 174 Lbs.

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. Write the invoice number on the inside of the front cover. Keep the manual and
invoice in a safe and dry place for future reference.

Safety Warnings and Precautions

WARNING: When using tool, basic safety precautions should always be followed to
reduce the risk of personal injury and damage to equipment.

Read all instructions before using this tool!

1. Keep work area clean. Cluttered areas invite injuries.

2. Observe work area conditions. Do not use machines or equipment in damp or wet
locations. Don’t expose to rain. Keep work area well lit. Do not use electrically
powered compressors in the presence of flammable gases or liquids.

3. Keep children aw ay. Children must never be allo w ed in the work area. Do not let
them handle machines, tools, extension cords, or air hoses.

4. 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.

5. 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. There are certain applications for which this tool
was designed. It will do the job better and more safely at the rate for which it was
intended. Do not modify this tool and do not use this tool for a purpose for which it
was not intended.

6. Dress properly. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Protective, electrically non-conductive clothes and non-skid footwear
are recommended when working. Wear restrictiv e hair covering to contain long hair.

7. Use eye protection. Always wear ANSI approved impact safety goggles. Wear
heavy work gloves.

Page 2SKU 92840 For technical questions, please call 1-800-444-3353

8. Do not overreach. Keep proper footing and balance at all times . Do not reach over or
across Jack or Jack Stands under a load.

9. Maintain tools with care. K eep tools clean f or better and saf er perf ormance. Follo w
instructions for lubricating and changing accessories. Inspect tool cords and air hoses
periodically and, if damaged, have them repaired by an authorized technician. The
handle must be kept clean, dry, and free from oil and grease at all times.

10. Disconnect air supply. Disconnect air hose when not in use.

11. Avoid unintentional starting. Be sure the controls are in the neutral position when
not in use and before plugging in. Do not move any tool while touching the controls,
whether it is connected to the air or not.

12. Stay alert. Watch what you are doing, use common sense . Do not operate any tool
when you are tired.

13. Check for damaged parts. Bef ore using an y tool, an y part that appears damaged
should be carefully checked to determine that it will operate properly and perform its
intended function. Check for alignment and binding of moving parts; any broken parts
or mounting fixtures; and any other condition that may affect proper operation. Any
part that is damaged should be properly repaired or replaced by a qualified technician.
Do not use the tool if the controls do not operate properly.

14. Guard against electric shock. Prevent body contact with grounded surfaces such as
pipes, radiators, ranges, and refrigerator enclosures.

15. Replacement parts and accessories. When servicing, use only identical
replacement parts. Use of any other parts will void the warranty. Only use accessories
intended for use with this tool. Approved accessories are available from Harbor Freight
Tools.

16. Do not operate tool if under the influence of alcohol or drugs. Read warning
labels if taking prescription medicine to determine if your judgement or reflexes are
impaired while taking drugs. If there is any doubt, do not operate the tool.

17. Use proper size and type extension cord. If an extension cord is required for the air
compressor, it must be of the proper size and type to supply the correct current to the
compressor without heating up. Otherwise, the extension cord could melt and catch
fire, or cause electrical damage to the compressor. Check your air compressor’s
manual for the appropriate size cord.

18. Maintenance. For your safety, maintenance should be performed regularly by a
qualified technician.

19. Compressed air only. Nev er use comb ustible gas as a power source.

Note: Performance of the compressor (if powered by line voltage) may vary depending on
variations in local line voltage. Extension cord usage may also affect tool performance.

Warning: The warnings, cautions, and instructions discussed in this instruction 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.

Page 3SKU 92840 For technical questions, please call 1-800-444-3353