LiuGong CLG835H, Service Manual

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January 24, 2017 Removal and Installation
CLG835H Work hydraulic system
Inspection and clean of boom cylinder
Figures Operation instruction Tools
Piston group:
Fig. I
Fig 2
Figure 3
Inspection of part:
1. Inspection of piston group:
1) Inspection of piston seal:
a. Check whether glyd ring
is scratched, worn,
extruded and collapsed
(Figure 1 and Figure 2).
b. Check whether support
ring is scratched,
strained, worn and burnt
(Figure 1 and Figure 3).
c. Check whether O-ring at
static seal of piston is
worn and trimmed.
4) Inspection of piston:
a. Check whether contour of
piston is scratched and
strained (Figure 4).
b. Check whether two end
surfaces are compressed
seriously (Figure 5).
P18H00156
Support ring
burned and damaged
Glyd ring squeezed
out and crashed
P18H00157
Glyd ring shows wear
while the wear is average
P18H00158
Part of support ring
(locking end) shows
vertical scratch
The inner rings of 2#
two support ring shows
a round of wear