Doosan GL08K, Operation & Maintenance Manual

Page: 95 / 206

Maintenance - 89 -

Wet the fixing bolts with engine oil,
semitighten them with hand, tighten
them to the specified torque using a
torque wrench as follows.
<Tightening order>
(1) Second stage : Temporary bolt screwing about 1 ~ 2 threads
(2) Second stage : Tighten the bolt using a torque wrench to a torque of 4 kgf·m.
(3) Third stage : Mark the bolt head and its contacting surface.
(4) Fourth stage : Further tighten the bolt using a torque wrench until the marking made in fourth
stage is turned another 60°.

When the connecting rod bearing cap
bolts are tightened, check the
connecting rod end play to the right and
left with hand.
 If no end play is found, remove and
reinstall or replace the connecting rod
bearing cap.
3.3.17. Oil pump and oil pipe
 Install a dowel pin in the No.7 bearing
cap, then assemble the oil pump by
tapping lightly with urethane hammer.

Tighten the assembling bolts with
specified torque.

Assemble the oil suction pipe with the
delivery pipe to oil pump by the bolts.
EGL0818006
60°
Torque
1st Step 4 kg
•
m
2nd Step 60°
EAMD094I
EB5M3017
Torque 4.4 kg
•
m