TrestleJacks USA TJ220ADJ Manual

Trestle Jacks Mini
TJ220ADJ
Release 0.1
Standard Operating
Procedure
BEFORE USING TRESTLEJACKS, READ THESE INSTRUCTIONS AND THE PRODUCT LABEL COMPLETELY AND
THOROUGHLY, UNDERSTAND THEIR OPERATING PROCEDURES, SAFETY WARNINGS AND MAINTENANCE
REQUIREMENTS. FAILURE TO DO SO COULD CAUSE ACCIDENTS RESULTING IN SERIOUS OR FATAL
PERSONAL INJURY AND/OR PROPERTY DAMAGE.

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TRAILER LIFTING & SUPPORT STAND HAZARDS
Study, understand and follow all instructions before operating this device. Failure to heed these instructions may result in
property damage and/or personnel injury or death:
Do not exceed rated capacity
Use TrestleJacks on a hard, level surface capable of supporting
the weight of the trailer
Use as a matched pair to support each end of the trailer when
lifting an entire axle
Because of the potential hazards associated with the misuse of
equipment of this type, no modifications should be made to the
product without consent from manufacturer
Chock trailer & towing vehicle wheels to prevent trailer
movement
Never use a single TrestleJack to raise an entire trailer in the
center of the axle
WARNING SUMMARY
This document contains general safety warnings that must be understood and applied during operation of this equipment. Failure
to observe these precautions could result in serious injury or death to personnel.
HEAVY OBJECT –Heavy object on human figure shows that heavy parts present a danger to life or limb
HEAVY OBJECT –Foot with heavy object on top shows that heavy parts can crush and harm.
HEAVY OBJECT –Hand with heavy object on top shows that heavy parts can crush and harm.
The use of damaged, corroded or otherwise defective TrestleJacks could result in stand failure, causing severe injury
or death to user. Always inspect TrestleJacks prior to use.
Each stand shall be inspected immediately if the device is believed to have been subject to an abnormal load or
shock.
Check the TrestleJacks for bends, separated welds, cracks, corrosion, damaged, loose, or missing parts, excessive
wear or other evidence of mishandling.
! WARNING
•Study, understand, and follow all instructions
with and on this device before use.
•Donot exceed rated capacity.
•Use only on hard, level surfaces capable of
sustaining rated capacity loads.
•Use as a matched pair to support one end of
a trailer only.
•Support only on the axle of the trailer as
specified.
•Ensure there are no cables, break tube lines
or other utilities running on the axle that can
be damaged by the jack.
•Product to be used on trailer axles only –
square, triangular and round axles are
supported.
•No alterations shall be made to this
product.
•Failure to heed product markings or
warnings may result in personal injury or
property damage.

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ProductOverview
TrestleJacks TJ220ADJ (TJ-Mini) is a specialised, trailer axle lifting and standing device that utilises driving motion from the
towing vehicle for lifting and lowering light load trailer/and caravan axles. Once in the upright position, TJ-Mini becomes an
axle support stand with a carrying capacity of 10 (ten) Tons.
Always ensure there are no cables, break tube lines or other utilities running on the axle that can be
damaged by the jack.
Application:
The TJ220ADJ (TJ-Mini) product range has an adjustable Ratchet Bar and supports all light load trailers, camp trailers,
horseboxes, caravans and boat trailers, irrespective of tyre/rim size. Square, triangular and round axles are supported.
Incorrect Application:
Although TJ220ADJ (TJ-Mini) products might be usable on some solid axle 4x4 vehicles, the product has
not been designed to be used on towing vehicles.
Components:
TJ Mini
A - Base Section
B - Ratchet Bar
NEVER disassemble the base of the TJ220ADJ (TJ-Mini) –regularly check that all nuts and bolts and
securely fastened.
Four (4) adjustable heights
Standard Height
Height Adjustment 1
Height Adjustment 2
Height Adjustment 3
Height Adjustment 4
NEVER extend the TJ220ADJ (TJ-Mini) beyond the indicated heights above. The two-pronged lock
pin must securely lock through two holes in the ratchet bar at all times.

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Operating Procedures
1
Apply park brakes, turn off ignition, chock the wheels
and apply trailer brakes before any preparation work
is started
6
Release all trailer brakes, remove wheel chocks,
release park brakes and turn on ignition.
2
Place the TJ220ADJ unit in the loading position
underneath the trailer axle as close to the troubled
wheel as possible. Illustration A
7
Reverse the towing vehicle slowly for lifting process to
start and continue to reverse until a positive stop is
received from the trailer or the towing vehicle has
moved approximately 20cm.
Illustration A
3
Ensure that the TrestleJacks’s cup is positioned
against the axle utilizing a clear space that is free
from axle-mounted components and/or utilities.
8
Lifting is complete once the TrestleJack is in the
upright position, the cup is holding the axle securely in
place and the base plate is level to the ground surface.
Illustration B
Illustration B
4
Move any wiring out of the way that could
potentially be damaged during the lifting process
9
Releasing the brakes will in most cases cause the
TrestleJacks to settle in the correct upright standing &
supporting position.
5
The driver of the vehicle must ensure that there
are no persons within 10 meters from the trailer
axles or any person underneath the trailer
10
Apply park brakes, switch off ignition, apply trailer
brakes, chock the wheels and lower the trailer stands.
All persons must keep clear of at least 5 meters from the vehicle once the TJ220ADJ unit is secured and
before axle lifting procedure starts.
IMPORTANT: Engage park brakes, switch off ignition, apply trailer brakes, chock the wheels and lower
the trailer stands (where appropriate) to ensure no further rig movement is possible while repairs are
taking place.

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Lowering process
1
After all repairs have been done and the wheel is
replaced and secured, the lowering process is ready
to begin.
5
The trailer wheels will take over the load and the
TrestleJacks will be released from the axle after about
200mm of forward movement.
2
Ensure that no person is underneath or near the
vehicle within a 5m range from the trailer axles.
6
Immediately bring the rig to a halt once the TrestleJacks
have been released from the axle or a distance of
200mm has been covered.
3
Release trailer brakes (where appropriate), remove
wheel chocks, switch on ignition and release park
brakes.
7
Apply park brakes, switch off tractor engine, chock the
wheels and apply the trailer brakes before removing the
TrestleJacks from underneath the trailer.
4
Drive the vehicle forward slowly and the lowering
process will begin.
Stop immediately after driving forward for 200mm. Remove the TrestleJack before
continuing driving. During the lowering process do not drive further than 400mm to ensure
none of the TrestleJacks used are causing any obstruction that may result in damage to
equipment.
During lifting and lowering procedures, no person is allowed underneath the trailer or within 5m from
the TJ Mini. The driver is required to be in the towing vehicle. The TrestleJacks’ base plate covers more
ground surface area than a single tyre, providing trusted stability. The axle cup holds the axle securely
in place. The product design provides a safe upright stand as the axle moves over the top dead center
and no other lifting support is required in normal working conditions.
Limited Warranty:
TrestleJacks warrants this product against defects in workmanship for one year from the date of purchase. During this
warranty period, this product will be repaired or replaced, at Trestle Jacks Pty Ltd discretion, without charge. Please read your
instructions thoroughly and use this product only as directed.
This warranty does not cover any damage due to accidental misuse, abuse or negligence. Repair or replacement as provided
under this warranty is the exclusive remedy of the consumer. Seller shall not be liable for any incidental or consequential
damage for breach of any expressed or implied warranty of merchantability or fitness for a particular purpose on this product
is limited to the duration of the warranty.