Doosan P158LE -III, Руководство по эксплуатации и техническому обслуживанию

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Engine Reassembly - 87 -
z
Pushing the piston down, rotate the
crankshaft about 180
°
and fit the
bearing cap to the connecting rod.
z
Coat the tap parts of connecting rod
bolts and their seats with engine oil,
and after engaging 2 ~ 3 threads of bolts
primarily rind then tighten them to the
specified torque. (10 kg
⋅
m + 90
°
+10 ° )
<Connecting rod bolt Tightening Order>
(1) First step : Coat the bolts with engine oil.
(2) Second step : Engage 2 ~ 3 threads by hands.
(3) Third step : Tighten to about 7 kg
⋅
m with wrench.
(4) Fourth step : By means of torque wrench tighten to 10 kg
⋅
m.
(5) Fifth step : Finally assemble by means of rotation angle method 90°
+10
° .
However, according to above tightening order, tighten them step by step.
* Standard length of bolt and use limit :
(from head seat to bolt tip)
z
By moving the connecting rod bearing
cap by hands, make sure if there is any
play in left and right.
z
With same ways as above, assemble in
each cylinder rotating the crankshaft.
Standard length Use limit
67.5 -0.3 mm 69 mm
EA6M2006
Top ring
2nd ring
Oil ring
EFM2070I