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Doosan DP158LDF - Rocker Arm; Disassembly Rocker Arm; Assembly Rocker Arm; Check of Rocker Arm

Doosan DP158LDF
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10. Cylinder block/head
177
Rocker arm
Disassembly Rocker Arm
1. Remove the snap ring on both sides of the rocker
arm shaft using snap ring plier.
2. Remove the washer and rocker arm.
3. Remove the rocker arm bush using press.
DV2213126A
Assembly Rocker Arm
1. Check if here is foreign substance in the oil delivery
hole of the rocker arm shaft, and clean it, if any.
2. Attach the rocker arm in the reverse order of
assembly.
Check of Rocker Arm
1. Rocker arm bracket (Single unit type with a shaft):
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.
DV2213127A_E
2. Rocker arm: Inspect the rocker arm surface that
contacts with the valve stem for any scratch, st
ep
wear
and correct the minor degree of wear with
an
oi
l stone or the fine grinding paper and replace if they
are severe.
CAUTION
Be careful not to change the rocker arm position or
assemble it in a reverse order.
Item Standard Limit
Bush Inner Dia.
Ø25.005 ~
Ø25.035
Ø25.055
Shaft Outer Dia.
Ø24.967 ~
Ø24.990
Ø24.837
Clearance 0.015 ~ 0.068mm 0.25mm
CAUTION
If the wear is severe, replace new one.
Outside diameter

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