Filter
Top Products
Repair
20 3A2798D
Supply Unit Repair
Ram Piston Rods
Always service both cylinders at the same time. When
you service the piston rod always install new o-rings in
the piston rod seal and ram piston.
Repair Parts:
Piston Repair Kit 257622. See Ram Frame on page 26
for parts included in kit.
Disassemble Piston Rod Seal and Bearing
1. Relieve pressure.
2. Access piston rod seal and bearing.
a. Ensure ram is in lowest position.
b. Remove nuts (333) and lockwashers (332) from
piston rods (302a).
c. Remove entire pump package, including the
mounting plate (331) off of the piston
rods (302a). Use a fork-truck to lift the assembly
from the mounting plate.
d. Secure pump package so pump and platen will
not fall.
3. Remove retaining ring (303).
4. Remove piston rod seal and bearing. Slide end cap
(302b), pin (302c), o-ring (302d), and spring (302m)
up off of the piston rod (302a). Remove retaining
ring (302l) and bearing (302k) from end cap (302b)
and remove o-ring (302e).
5. Inspect parts for wear or damage. Replace as nec-
essary.
NOTE: Do not reinstall end cap assembly if the ram pis-
ton (302f) needs to be removed from the piston rod. See
the next page for ram piston repair instructions.
To reduce the risk of serious injury whenever you are
instructed to relieve pressure always follow the
Pressure Relief Procedure on page 10. Do not use
pressurized air to remove the guide sleeve or the
piston.
F
IG
. 18: 3 in. Piston Rod Seal
ti10520a
302a
302m
302l
302k
302b
302d
303
302c
302e