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Section 141—Hydraulic Unit
29
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Forays
LOCKWASHER— -
ee
&
SS. WASHER— gn) .
CAP SCREWS—20874-S7
2s
> Ge © yu
LOCKWASHER— 550
WASHER—551
oe
BUSHING— 531
UFTING
ARM—543
SHAFT—544
BUSHING— 531
%
LIFTING ARM—543
oO
RM-623
Fig. 19—Hydraulic Cover and Lift Arms, Disassembled
(2) BUSHINGS.
Replace the lifting arm shaft bushings if they
are scored, pitted, or if the inside diameter is excessively worn.
(3) LIFTING
ARM
SHAFT.
Replace the lifting arm shaft if it
is damaged or if the bearing surface is excessively worn.
(4) LINKAGE.
Replace
any
linkage that is twisted,
bent, or
damaged in any way.
(5) RAM CYLINDER
AND PISTON.
Replace the ram cylinder
(fig. 20) if it is scored or if the bore is excessively worn. Replace the
piston rings when the cylinder is disassembled. Replace the piston if
it is scored or cracked.
RAM CYLINDER—510
PISTON—530
PISTON RINGS—533
Fig. 20—Ram Cylinder, Disassembled
3730-47]
§ 141. b. (5)
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