TB-43-0156
STAND, VEHICLE SUPPORT: 5 TON AND 7 TON
TECHNICAL BULLETIN; SAFETY INSPECTION AND OPERATION
JULY 2010
TB-43-0156 - Page 11 of 28
TB 43-0156
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9. Operation and Use
.
WARNING
VEHICLE 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:
•
Under-vehicle work shall use a certified vehicle hoist (preferred) or vehicle
support stands in combination with blocking and shoring.
•
Do not exceed rated capacity.
•
Use only on a hard level surface.
•
Center load on saddle.
•
Use as a matched pair to support each end of the vehicle.
•
No alterations shall be made or attachments added to this product.
a. Follow the instructions in your vehicle’s TM for the required size of stand and the proper placement
of vehicle stands under the vehicle.
b. Make sure the stands are on level ground and standing up straight.
Ensure that the rack and pawl
are fully engaged before and after the load is applied.
c. Apply the load so as to prevent any lateral forces on stands.
Lateral forces usually occur when
the vehicle is being lifted for the placement of another stand.
The first stand that is already in
position is the stand that receives the lateral forces as the vehicle suspension system adjusts to
further changes in height.
Support stand failures frequently occur when they are pushed over
sideways by the vehicle itself.
d. Never place a stand under the independent suspension system, as this could generate lateral
forces causing the stand to tip over.
Lift/support a vehicle with independent suspension by the
vehicle frame; wheels should hang free.
e. The stability of the vehicle, in conjunction with the appropriate placement of the stands, must be
checked prior to any personnel initiating vehicle maintenance procedures.
Once the load is
applied and settled, no rocking is allowed.
PMCS Table - Continued
ITEM
NO.
INTERVAL
ITEM TO
BE
CHECKED
PROCEDURE
EQUIPMENT NOT
READY/AVAILABLE
IF:
6
7
DURING
DURING
Entire
Stand
Entire
Stand
Check to see that the lifted item, usually a
vehicle, bears its weight in the middle of the
saddle and that all legs of the stand touch
the ground.
Each stand shall be inspected immediately
if the device is believed to have been
subject to an abnormal load or shock.
The load is not
centered on the
saddle or one leg
does not touch the
ground.
Remove immediately
from service if any
abnormality is found.
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