4. Remove self-locking piston guide nut (C11)
and piston rod guide (C10), using a 1-1/4”
wrench to hold the piston rod guide while
removing the piston guide nut. Discard the
self-locking nut and replace with new.
(C10) Piston Rod Guide. (C11) Self-Locking Piston
Guide Nut.
5. Place cylinder cap (C7) and cylinder cap seal
(C9) in hot (120°F) water for ten minutes.
Soaking the cap and seal will make the seal
more pliable and easier to remove.
The cylinder cap and seal will be
hot. To avoid personal injury, wear
protective gloves and take
precautions to avoid direct contact
with hot surfaces.
6. Wear gloves and use a sturdy seal pick to
remove cylinder cap seal (C9) from
cylinder cap (C7).
(C7) Cylinder Cap. (C9) Cylinder Cap Seal.
7. Clean the seal groove in the cylinder cap
and place the new seal in hot (120°F) water
for ten minutes.
8. Once the seal is pliable, squeeze the new
seal together making a banana shape.
Place one end of the seal into the cylinder
cap seal groove. Continue to push the seal
into the seal groove, holding the seal in the
groove from the bottom with one finger,
while continuing to push the seal down
from the top until the seal snaps in place.
IMPORTANT NOTICE
Care must be taken not to damage the new seal
while installing it. Do not use a sharp tool, such
as a screwdriver, to push the seal into place. A
suitable diameter impact socket with rounded
edges can be useful in pushing the seal into the
cap groove.
(C7) Cylinder Cap. (C9) Cylinder Cap Seal.
9. Once cylinder cap seal (C9) is in the
groove, double check for correct
orientation. The sharp edge of the seal
must be down (towards the threads inside
the cap).
10. Lubricate the seal with clean hydraulic
fluid and slide the cap onto cylinder
piston rod (C3) from the bottom.
IMPORTANT NOTICE
Do not slide the cylinder rod cap over the top of
the drive cylinder rod. The threads will damage
the new cylinder rod cap seal.
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