Doosan PU158TI User Manual

Engine Reassembly
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z Assemble temporarily one bolt each at
both bolt' holes and by connecting the
wire to the bolts, lift it with crane or chain
block and put down on the cylinder block
carefully.
z Coat the crankshaft journal and pin parts
with clean engine oil, and after fitting the
main bearing into the bearing cap and
assemble it to the cylinder block making
sure of the number in order not to
change the bearing cap.
z Coat the bearing cap bolt and its bolt
seat part with engine oil necessarily and
according to the tightening order, tighten
them with 30
kg ⋅ m and with rotating
angle method (90°
+10°
) and tightening
order is as follows.
<Bearing cap bolt’s Tightening Order>
(1) First step : Coat the bolts with engine oil.
(2) Second step : Screw down 1 ~ 2 threads.
(3) Third step : Tighten with about 15
kg ⋅ m by wrench.
(4) Fourth step : Tighten with about 25
kg ⋅ m by torque wrench.
(5) Fifth step : Tighten with 30
kg ⋅ m by torque wrench.
(6) Sixth step : Tighten with final rotating angle method 90°
+10°
.
However, according to above tightening order, tighten step by step.
z Inspect if the crankshaft’s rotation is smooth.
z Assemble the crankshaft gear on the crankshaft and coat a white paint mark on “1” part in order to
find easily.
6421357
EFM2061I
EFM2062I

Doosan PU158TI Specifications

General

Brand	Doosan
Model	PU158TI
Category	Engine
Language	English