Service Training
Section 4.7
Page 7
RENEWING THE PISTON SEALS
Condition: Cylinder removed
- Clamp the cylinder with the eyebolt of the cylinder barrel (8) in a vise.
- Open the flanged retainer for the cylinder head (13) and screw the cylinder head out of the barrel.
- Pull the piston rod assembly out of the barrel.
- Remove the setscrew (2).
- Screw the piston (3) off the piston rod.
- Remove the seals.
- Thoroughly clean the inside of the piston and cylinder barrel and inspect for damage.
- Install new seals.
- Screw the piston onto the piston rod and torque to 500 - 550 Nm. Secure the piston with the setscrew
(2).
- Grease the seals slightly and insert the piston rod and piston into the cylinder barrel.
- Screw in the cylinder head (13), tighten as specified and secure it.
- Mount the cylinder and adjust according to the adjustment procedures.
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