Doosan D1146T - Page 173

Appendix
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Tightening torque for major parts
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Tightening torque for fuel injection pump system
Major Parts
Screw Strength
Tightening Torque Remarks
(Diameter x pitch) (grade)
1st : 6.0 kg
•
m
Cylinder head bolt M14 x 1.5 10.9T
2nd : 180°
3rd : 150°
(Angle method)
1st : 10 kg
.
m
Connecting rod bearing cap bolt M14 x 1.5 12.9T 2nd : 15 kg
.
m
3rd : 18 kg
.
m
1st : 15 kg
.
m
Crankshaft main bearing cap bolt M16 x 1.5 12.9T 2nd : 25 kg
.
m
3rd : 30 kg
.
m
Balance weight fixing bolt M12 x 1.5 10.9T 9.0 kg
.
m
Flywheel housing fixing bolt M14 x 1.5 10.9T 8.0 kg
.
m
Flywheel fixing bolt M14 x 1.5 10.9T 18.0 kg
.
m
Crankshaft pulley fixing bolt M12 x 1.5 10.9T 13.4 kg
.
m
Oil spray nozzle M14 x 1.5 - 8.0 kg
.
m
Major Parts
Screw Strength
Tightening Torque Remarks
(Diameter x pitch) (grade)
Injection nozzle nut M28 x 1.5 - 7.0 ± 0.5 kg
•
m
Injection pump bracket bolt M10 8.8T 4.4 kg
.
m
Injection pump coupling bolt - - 6.0 ~ 6.5 kg
.
m
Injection pump driving gear nut M24 x 1.5 8.8T 25.0 kg
.
m
Injection pipe nut M14 x 1.5 8.8T 3.0 kg
.
m
Injection pump delivery valve holder - - 11.0 ~ 12.0 kg
.
m