Doosan GL08K - Page 88

Maintenance - 82 -
 Install the bearing cap by matching the
cylinder block No. with the bearing cap No.
 Apply oil to the entire part of the bearing
cap bolts, then tighten in tightening
sequence to specified torque.
 After semi-tightening both bolts evenly,
tighten them diagonally to the specified
torque using a torque wrench as follows.
<Tightening order>
(1) First stage : Coat the cap bolts with engine oil
(2) Second stage : Temporary bolt screwing about 1 ~ 2 threads
(3) Third stage : With impact wrench, tighten up to about 15 kg.m
(4) Fourth stage : With torque wrench, tighten up to about 25 kg.m
(5) Fifth stage : By means of torque wrench, tighten finally in the specified torque. (30 kg.m).
 Tighten the bearing cap in the sequence of 4 - 3 - 5 - 2 - 6 - 1 - 7.
 Check to see that the assembled crankshaft turns smoothly with hand
3.3.7. Flywheel housing
 Temporarily install the guide bar on the
cylinder block.
 Apply gasket to the cylinder block.
 Using the dowel pin and guide bar, install
the flywheel housing and tighten the
fixing bolts in a diagonal sequence to
specified torque. (Zigzag method)
3
4
5
6
7
2
1
EAMD078I
EAMD079I
Torque 30 kg • m
Oil seal
ED4OM019
Torque 8 kg • m