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  (4) Drive out lock pin (3) and remove all
Page 3-7. Paragraph 3-13a, "oil fittings" is
parts from the pin end of the piston rod assembly.
changed to read "lubrication fittings";
In Note, "oil the fittings" is changed to read "lub-
NOTE
ricate the fittings".
Discard O-rings, U-cups, V-packings,
Paragraph 3-13b is superseded:
lock pin, backup ring, and rod wiper
repairing the hydraulic cylinder. These
b. Using a grease gun, fill each fitting until
parts are not available separately, but
grease is forced out through the seals.
are furnished in a service kit. Refer to
Page 6-43. Paragraph 6-52.1 is added.
TM 5-3820-239-35P
6-52.1. Disassembly (Model CM225/D475A)
Paragraph 6-55.1 is added
a. Power Dump and Swing Assembly. Refer
6-55.1. Reassembly (Model CM225/D475A)
to paragraph 6-52a.
b. Hydraulic Cylinders.
a. Hydraulic Cylinders.
NOTE
NOTE
The hydraulic cylinders are similar in
Coat all parts with clean hydraulic oil to
construction. For maintenance purposes,
a typical cylinder will be covered. Differ-
aid in reassembly.
ences in the check valve parts do not
(1) Install all check valve parts as shown
affect the instructions appreciably.
in figure 6-20.1.
(1) Remove capscrews (1, fig. 6-20.1)
(2) Slide rod wiper (18), retainer ring (17),
lock washers (2).
and gland nut (16) onto piston rod assembly
(2) Using a suitable spanner wrench, un-
(19).
screw retainer ring.
(3) Install springs (14), male adapter (13),
and V-packing (12) into cylinder head (15).
NOTE
Mount O-ring (11) and backup ring (10) on the
The retainer ring cannot be completely
cylinder head, and slide the asembled parts onto
removed when unscrewed, since it may
not fit over the fitting of the piston rod
piston rod assembly (19). Install lockpin (3) to
retain the parts.
assembly.
b. Power Dump and Swing Assembly. refer
(3) Slide piston rod assembly (19), with all
to paragraph 6-55c.
parts attached, out of barrel assembly (29).
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