Harbor Freight Tools 37792 Automobile Parts User Manual


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Thank you for choosing a Harbor Freight Tools product! For future reference please com-
plete the owner’s record below:
Model:_______________ Purchase Date:_________________
SAVE THE RECEIPT, WARRANTY AND THESE INSTRUCTIONS. IT IS IMPORTANT THAT
YOU
READ THE ENTIRE MANUAL TO BECOME FAMILIAR WITH THIS PRODUCT BEFORE YOU BEGIN ASSEMBLY.
______________________________________________________________________________
Specifications
Purpose: Jack mounts to side of straight trailer tongue. Once connected to the trailer, the Trailer Jack
makes hitching, unhitching, leveling, and moving the trailer a simple and safe procedure. The Trailer
Jack can be used on heavy farm duty trailers as well as recreational boat trailers.
The Trailer Jack is designed for permanent or semi-permanent attachment to the trailer tongue, and can
be available for use wherever the trailer goes.
Minimum Height: 8”
Maximum Height: 22 1/2”
Lifting Range: 14 1/2”
Capacity: 550 lbs. load (not including load supported by trailer wheels)
Designed with a heavy duty worm gear drive with built-in gear box. Includes a grease fitting for easy
lubrication.
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Unpacking
Carefully unpack the Trailer Jack and check all parts against the parts diagram and part number listing
on pages 6. Do not discard any packing material until the Trailer Jack is fully assembled and opera-
tional. If any parts are missing or broken, please call Harbor Freight Tools at 1-800-444-3353
Assembly
The Trailer Jack requires some minor assembly. Please follow the steps outlined below:
1. Place the Caster Wheel (#5) into the Caster Bracket (#4). Insert the Axle Bolt (#9), and tighten
with the Locking Nut (#10).
2. Install the wheel assembly shaft into the lower end of the Jack Shaft (#1). Screw in the Bolt (#12),
making sure that the Bolt sets in the grove of the wheel assembly shaft.
3. Place the Crank Handle (#3) on the shaft of the Jack Shaft, and align the flat surface to the handle.
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