MAHA MPJ Series Original Operating Instructions page 86

7 Fit a new set of seals to the cleaned guide bush and piston. To keep the O-
ring in position, we recommend applying multi-purpose grease to the groove
for the O-ring.
NOTICE
In the illustration on the right, a non-return valve can be seen inside the piston,
see large arrow. Check for damage and contamination and replace if necessary.
8 Generously coat the area inside the guide bush with hydraulic oil and push the
guide bush onto the cylinder barrel from below. Then tighten the piston
hand-tight and secure with a grub screw. If present, ensure that the two M8
LFK screws are screwed back into the cylinder base (only required for MPJ
16.5/1200 3S).
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