Doosan P158LE -III, Руководство по эксплуатации и техническому обслуживанию

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Inspection - 68 -
3.2.4. Rocker arm
1) Cylinder head disassembly
z
Remove the snap rings in both ends
of rocker arm with a pair of pliers.
z
Tear down washer, rocker arm.
z
Disassemble the rocker arm bush by
means of a press.
2) Inspection and measurement
a) Rocker arm bracket
(Single unit type with a shaft)
z
Measure the outer diameter of
rocker arm bracket with outside
micrometer at the position that the
rocker arm is installed, and in
case that it exceeds the limit
value, replace.
b) Rocker arm
z
Inspect the rocker arm surface
that contacts with the valve stem
for any scratch, step wear and
correct the minor degree of wear
with an oil stone or the fine
grinding paper and replace if they
are severe.
Standard Limit
Bush Inner
Dia.
25.005 ~
25.035 mm
25.055
mm
Shaft
outer Dia.
24.967 ~
24.990 mm
24.837
mm
Clearance
0.015 ~
0.068 mm
0.25 mm
EFM2091I
EA6M2003
Diameter