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Page Title: Figure 2-20. Three seal cylinder head.
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Figure 2-21. Removing cylinder head shims.
(a) Place retainer (3, fig. 2-22) on rod
(6). Separate and oil all the rings of packing (2).
Place the packing on the rod so the open part of the
V will be facing toward head (1) when the head is
installed. Be sure rubber pressure ring (4) is located
as shown.
Figure 2-20. Three seal cylinder head.
(e) Cylinder head packing adjustment.
1. Oil leakage between the rod and the
hydraulic cylinder packing can be the result of
w o r n , cut, and/or distorted packing. Leakage can
o f t e n be stopped by removing shims (2, fig. 2-21)
located between retainer (1) and the cylinder head;
this will allow the packing to be compressed against
t h e rod when the retainer is tightened.
2 . Remove the bolts securing retainer to
the cylinder head. Move the retainer away from the
cylinder head to allow the shims to be cut and
removed.
3 . Remove one shim (2); install retainer
(1) and operate the cylinder. If leakage is still
apparent, repeat the procedure. If the cylinder
leaks after removing two shims, remove and
d i s a s s e m b l e the cylinder and replace the packing.
Figure 2-22. Packing and shims installed.

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