HAUL MASTER 57953 Assembly instructions

Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 21f
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright©2000 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.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools requir e d f o r a ssem b l y a nd ser v i c e may no t b e i n clud e d .
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Visit our website at: http://www.harborfreight.com
Email our technical support at: [e-mail] 57953

Page 2 For technical questions, please call 1-888-866-5797. Item 57953
WARNING SYMBOLS AND DEFINITIONS
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
IMPORTANT SAFETY INFORMATION
General Tool Safety Warnings
WARNING Read all safety warnings and
instructions. Failure to follow the warnings and
instructions may result in serious injury.
Save all warnings and instructions for future
reference.
The term ″tool″ in the warnings
refers to your Trailer Jack.
1. Work area safety
a. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
2. Personal safety
a. Stay alert, watch what you are doing and use
common sense when operating a tool. Do
not use a tool while you are tired or under
the influence of drugs, alcohol or medication.
A moment of inattention while operating tools
may result in serious personal injury.
b. Use personal protective equipment. Always
wear eye protection. Safety equipment such
as non-skid safety shoes or a hard hat used for
appropriate conditions will reduce personal injuries.
c. Do not overreach. Keep proper footing
and balance at all times. This enables better
control of the tool in unexpected situations.
d. Dress properly. Do not wear loose clothing or
jewelry. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewelry
or long hair can be caught in moving parts.
3. Tool use and care
a. Do not force the tool. Do not exceed
2,000 lb. capacity of this tool. The
correct tool will do the job better and safer
at the rate for which it was designed.
b. Store idle tools out of the reach of children
and do not allow persons unfamiliar with the
tool or these instructions to operate it. Tools
are dangerous in the hands of untrained users.
c. Maintain tools. Check for misalignment or
binding of moving parts, breakage of parts
and any other condition that may affect
the tool’s operation. If damaged, have the
tool repaired before use. Many accidents
are caused by poorly maintained tools.
d. Use the tool and accessories in accordance
with these instructions, taking into
account the working conditions and the
work to be performed. Use of the tool for
operations different from those intended
could result in a hazardous situation.
4. Service
a. Have your tool serviced by a qualified
repair person using only identical
replacement parts. This will ensure that
the safety of the tool is maintained.

Page 3For technical questions, please call 1-888-866-5797.Item 57953
Specific Safety Warnings
1. Be aware that the user/installer of this product is
solely responsible for the way the Trailer Jack is
installed, operated and maintained, and is responsible
for any and all consequences that occur, whether
or not anticipated in these warning statements.
2. Do not exceed 2000 Lb. capacity.
3. Never attempt to adjust, modify or take apart the
Swing Plate, Pull Pin, or Pull Pin Handle while
the Trailer Jack is supporting any weight.
4. Lock Trailer Jack in vertical position
before applying load.
5. Use on flat, level, hard surface capable of supporting
the combined weight of the trailer and the jack.
6. Before each use, verify that the Pull Pin is properly
engaged in a hole of the Swing Plate (8).
7. Wear ANSI-approved safety goggles during use.
8. Prevent trailer wheels from moving by using
wheel chocks while extending or retracting.
9. Before towing, fully raise Trailer Jack and secure
properly in it’s horizontal position (foot to the rear).
10. Always keep feet, arms, and legs out from
under jack and tongue when applying and
releasing load, or moving trailer.
11. Inspect before use. Do not use if
parts are loose or damaged.
12. Use in accordance with the Department
of Transportation (DOT) regulations.
Information about DOT regulations can be
found at www.dot.gov/regulations.html
13. Read manual before installation and/or use.
14. Maintain labels and nameplates on
the tool. These carry important safety
information. If unreadable or missing, contact
Harbor Freight Tools for a replacement.
15. This product is not a toy. Children should
be kept at a safe distance, and never
allowed to operate the Trailer Jack.
16. Follow all state regulations for safety and towing
when using Trailer Jack, including using safety
chains securely attached to the towing vehicle
when the trailer is hooked to the vehicle.
17. Not for aircraft purposes.
18. Trailer Jack must always be in the up position
(horizontal to ground) when towing the trailer.
19. The warnings, precautions, 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.
SAVE THESE INSTRUCTIONS.
SPECIFICATIONS
Weight Capacity 2,000 lb.
Maximum Height 23-5/8″(Extended)
Minimum Height 14″(Retracted)
Lift Distance ± 9-5/8″
Net Weight 9.9 Lbs.
Unpacking
When unpacking, make sure item is intact and
undamaged. If parts are missing or broken, call
Harbor Freight Tools at 1-888-866-5797.

Page 4 For technical questions, please call 1-888-866-5797. Item 57953
Set Up Instructions
Read the ENTIRE IMPORTANT SAFETY
INFORMATION section at the beginning
of this manual including all text
under subheadings therein before
set up or use of this product.
Note: For additional information regarding the
parts listed in the following pages, refer to the
Assembly Diagram near the end of this manual.
Assembly
Note: The Trailer Jack requires no assembly, but care
must be taken to properly mount the Trailer Jack to the
trailer. Trailer Jack must be welded to side of straight
trailer tongue. Once welded to the trailer, the Trailer
Jack is an effective aid to hitching, unhitching, leveling
and moving the trailer. The Trailer Jack can be used on
farm duty trailers as well as recreational boat trailers.
Note: The Trailer Jack is designed for permanent
attachment to the trailer tongue, and can be
available for use wherever the trailer goes.
WARNING! To prevent injury, securely weld the Swing
Plate (8) to the side of the trailer’s tongue with the lip of
the Swing Plate (8) above the tongue for added support.
WARNING! To insure safe operation, welding
of the Swing Plate (8) to the trailer tongue must
only be done by a certified welder in a safe
location, away from all flammable materials.
1. Plan the location of the Trailer Jack.
2. Examine both sides of the trailer tongue
and choose the appropriate location for the
Jack, keeping in mind the mounting method,
and the need to crank the Handle (1).
3. The Trailer Jack is designed to be welded to
either side of the trailer tongue, and will swing
back in either direction (forward or to the rear).
Leave adequate room at both sides of the trailer
frame so as to allow horizontal positioning of the
Jack, in either forward or rearward position.
4. Before installing the Trailer Jack, properly
support the tongue of the trailer so that it is high
enough off the ground to provide clearance for
the Jack. Take precautions to insure the wheels
of the trailer are chock and will not roll.
5. Remove Retaining Ring (7) and detach the Swing
Plate (8). Carefully remove the paint from Plate
edges. Position lip of the Plate over top of the
trailer tongue and commence welding. Once the
Swing Plate (8) is properly welded to the trailer
tongue, attach the Jack to the Plate and secure
in place with the Retaining Ring (7). Test the
Trailer Jack to make sure it functions correctly.
6. Crank the Handle (1) both ways to make sure
the Trailer Jack extends and retracts properly.
7. Pull out the Pull Pin Handle (9) and swing the Trailer
Jack upward to horizontal position. Make sure the
Pull Pin (10) engages into the Swing Plate (8) and
locks the Trailer Jack in this upward position.
8. After you have tested the Trailer Jack and are confident
of it’s proper operation, the Trailer Jack is ready for use.
9. Note: Always have the open end of the
Rotarting Pin (13) pointed to the jack.
OPERATING INSTRUCTIONS
Read the ENTIRE IMPORTANT SAFETY
INFORMATION section at the beginning
of this manual including all text
under subheadings therein before
set up or use of this product.
Mount and dismount Trailer only on smooth, level surfaces.
Mounting The Trailer To The Towing Vehicle.
1. Before mounting, chock the trailer wheels
to prevent the trailer from rolling.
2. Crank the Handle (1) counterclockwise
to extend the leg to the desired height.
3. Maneuver the vehicle so that the trailer’s hitch
is directly over the towing vehicle’s hitch ball.
4. Rotate the Handle clockwise to retract the Trailer
Jack, and lower the tongue hitch onto the hitch ball.
5. Tighten the hitch retainer mechanism.

Page 5For technical questions, please call 1-888-866-5797.Item 57953
6. Continue turning the Handle (1) until
the leg is fully retracted.
7. Pull out the Pull Pin (10) and rotate the
Trailer Jack to it’s horizontal position. Make
sure that it locks into the Swing Plate.
8. The Handle (1) should also be swung over and
positioned to rest on top of the trailer tongue.
9. Before towing, always swing the Trailer Jack
to it’s horizontal position (foot facing rearward).
Always keep feet and hands clear of the hitch,
the tongue and the area underneath.
10. Caution: Before driving the vehicle and trailer
to your destination, always use safety chains
to secure the trailer to the towing vehicle.
Removing The Trailer From The Towing Vehicle
Take the necessary precautions against uncontrolled
trailer movement (use wheel chocks), before loosening
the trailer hitching mechanism. Turn the Handle (1)
counterclockwise to raise the tongue of the trailer
from the hitch ball. Keep hands and feet clear of the
hitch, tongue and the area underneath the tongue.
Leveling and Moving
1. In the unhitched mode, the trailer can be
leveled front to back by turning the Handle
either clockwise or counterclockwise.
2. If the trailer is to be stored in this mode, it is advised
that the trailer wheels be properly chocked.
Towing
While the trailer is being towed, the Trailer
Jack must be pivoted into the horizontal
position with the foot facing rearward.
Maintenance And Servicing
Procedures not specifically explained
in this manual must be performed
only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM TOOL FAILURE:
Do not use damaged equipment. If abnormal noise or vibration occurs, have the
problem corrected before further use.
Cleaning, Maintenance, and Lubrication
1. BEFORE EACH USE, inspect the general condition of
the tool. Check for loose hardware, misalignment or
binding of moving parts, cracked or broken parts, and
any other condition that may affect its safe operation.
2. No lubrication is necessary until the product
is dismantled for maintenance.
3. AFTER USE, wipe external surfaces of
the tool with clean cloth, then dry.
4. Occasionally pull out the Pull Pin (10) and place
a drop of lubricating oil over it’s shank.
Swing
Plate (8)
Trailer
Tongue

Page 6 For technical questions, please call 1-888-866-5797. Item 57953
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 REPAIRS AND PARTS REPLACEMENTS SHOULD BE
UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL
RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
Record Product’s Serial Number Here:
Note: If product has no serial number, record month
and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only, and are not available
individually as replacement parts. Specify UPC 193175427953 when ordering parts.

Page 7For technical questions, please call 1-888-866-5797.Item 57953
Parts List and Diagram
Part Description Qty
1 Handle 1
6 Outer Tube 1
7 Retaining Ring 1
8 Swing Plate 1
9 Pull Pin Handle 1
10 Pull Pin 1
11 Spring 1
12 Washer #2 1
13 Retaining Pin 1
Part Description Qty
14 Flat Washer 1
15 Bearing 1
16 Thick Washer 1
17 Nut 1
18 Spindle 1
19 Foot 1
20 Screw 1
21 Nut 1

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 90 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, criminal activity, improper
installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries
to persons or property, or for incidental, contingent, special or consequential damages arising from the use of
our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. If
our inspection verifies the defect, we will either repair or replace the product at our election or we may elect
to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return
repaired products at our expense, but if we determine there is no defect, or that the defect resulted from
causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
26541 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797