Disassembly / Reassembly Operation
43
Take off, check and change if necessary the O-
Ring (9) located at the middle of the piston rod
(17).
Nota: If the piston is damaged, when changing it, you must
change the seals indicated previously (refer to § 'lower or
upper cup seals').
Clean and reinstall the parts in the following order:
Install the 'F' washer (20) in the lower part of the piston,
Install the seals (62 & 63 or 67 & 68 depending upon the
version,
Install the 'M' washer (18) in the lower part of the piston,
Add an adjustment block (69) if necessary,
Install the two stop bushes (37),
Install the rings (38) on the piston rod (17),
Lubricate the packing,
Insert the lower part of the cylinder (41) in the reverse order
of the Chevron seals until reaching the seals and recovering
them,
Install the other Chevron seals (upper packings) as well as
the 'F' washer, the seals, the 'M' washer on the piston (35),
Install the stop bushes (37),
Install the rings (38),
Make the cylinder slide upwards,
Lubricate the cylinder (41).
Add an adjustment block (69) if necessary.
Nota: the 'F' washers (4 & 20) are:
- plastic ones for the fluid sections # 104 134 0001 & 104 135
0001
- brass ones for the fluid sections # 104 134 0008 & 104 135
0008.
The plastic washers are in the spare parts of the package
of seals of the concerned fluid sections.