HD-14T Four Post Lift
58
P/N 5900037 — Rev. F — February 2022
Bleeding the Hydraulic Cylinder
The Hydraulic Cylinder on the Lift is self-bleeding, which means that in most cases any air in the
system can be removed by raising and lowering the Runways a few times.
Symptoms of air in the Hydraulic System include Runways moving erratically and/or making odd
noises. These could be caused by other situations; refer to
⚠
WARNING
Before performing any maintenance on your Lift, make sure the Runways are fully
lowered and the power source has been completely disconnected. If your
organization has Lockout/Tagout policies, make sure to implement them after
connecting to the power source.
To bleed the Hydraulic System
:
1.
Raise and lower the Runways up to six times;
pause for at least one minute between
each cycle
.
⚠
CAUTION
The Lift’s motor cannot run continuously; it is designed for regular use, but not
continuous use.
2.
Watch the Runways as you raise and lower them. When the Lift stops moving erratically or stops
squeaking, you can stop the bleeding process.
3.
Check the Hydraulic Fluid Reservoir on the Power Unit.
Bleeding the Hydraulic System may significantly lower the amount of Hydraulic Fluid in the
reservoir; add more Hydraulic Fluid if necessary.
If your Lift is still moving erratically or making odd noises after bleeding the Hydraulic System, refer
to
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