2
T10035/T10036 Steel/Aluminum Jacks
Maintenance
Keep the hydraulic ram clean and free of any dust,
dirt, or foreign debris. Abrasive material stuck to
the ram can damage the hydraulic seal when the
ram is retracted back into the jack. Regularly wipe
the hydraulic ram clean with a lightly oiled rag.
The jack will require hydraulic fluid after long-term
use. This will be noticeable if the jack will not
reach its maximum height when pumped.
Only use a high quality hydraulic fluid.
To add hydraulic fluid:
1.
Completely lower the jack saddle.
2.
Remove the fill plug shown in
Figure 1.
3.
Add fluid until it reaches the top of the fill plug
hole.
4.
Replace the fill plug.
5.
Test the operation of the jack by pumping
it up to the maximum height and applying a
load to the saddle. The jack should hold the
weight of the load without a sinking or spongy
feeling.
—If the jack did not perform properly, then
air may need to be bled from the pump
system.
Bleeding the Air
If the jack becomes spongy or will not rise when
pumped, then air bubbles may be in the hydraulic
system. These air bubbles must be bled from the
hydraulic fluid before the jack can be safely oper-
ated.
To remove the air bubbles:
1.
Rotate the handle counterclockwise five full
turns.
2.
Place a shop rag around and under the oil fill
hole.
3.
Remove the fill plug.
4.
Pump the jack handle rapidly to force the
air bubbles out through the fill hole. When
the air bubbles stop coming out, add fluid as
needed, then reinstall the fill plug.
Figure 2.
Identification.
Machine
Label
Saddle
Figure 1.
Fill plug.
Fill Plug
Jack Handle
