Claas LEXION 480 - Disassembling the Straw Chopper Drive Hydraulic Cylinder

9.5.28 RHB LEXION 480 - 188 678.1
Hydraulic cylinders – High-pressure hydraulic circuit
Unscrew the M 6 x 12 hex. bolt in order to be able to
remove clamp (B) and the cylinder with the cylinder pin
from the jockey pulley arm.
(Fig. 66)
Disassembling the straw chopper drive hydraulic
cylinder
Chuck the cylinder and turn the cylinder head until the
securing wire (D) comes out of the groove in the
cylinder barrel.
(Fig. 67)
Pull the cylinder head (Z) and the ram rod (K) out of
the cylinder barrel.
Clean the ram rod and pull off the cylinder head.
The O-ring and the back-up ring can be removed from
the cylinder head.
(Fig. 68)
Unscrew the ram (H) from the male screwed end of
ram rod (K) using a sickle spanner.
NOTE!
The joint is secured with liquid locking
compound. It can be released easily by heating
it to about 200 °C.
The ram seal and the rod lead ring can now be
replaced.
(Fig. 69)
66
67
68
69