Doosan DE12TIS User Manual

Appendix
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Appendix
 Tightening torque for major parts
 Tightening torque for fuel injection system
Major parts
Screw
(Diameter
× pitch)
Strength
(grade)
Tightening torque Remarks
Cylinder head bolt M14 × 1.5
10.9T
1st
: 6 kg • m
2nd : 180°
Finished : 150°
(angle torque)
Dodecagon
12T
24.5 kg • m hexagon
1st : 6 kg • m
2nd : 90°+ 90°
Finished : 30°
(angle torque)
Dodecagon
Cylinder head cover bolt M8 8.8T
1.2 kg • m
Connecting rod bearing cap bolt M16 × 1.5 12.9T
1st : 15 kg • m
2nd : 22 kg • m
3rd :
30 kg • m
Crankshaft main bearing cap bolt M16
× 1.5 12.9T
1st
: 15 kg • m
2nd :
25 kg • m
3rd :
30 kg • m
Balance weight fixing bolt M14 × 1.5 10.9T 14.0 kg • m Split type
Flywheel fixing bolt M14
× 1.5 10.9T 18.0 kg • m
Crankshaft pulley fixing bolt M12 × 1.5 12.9T 13.4 kg • m
Oil spray nozzle M6 8.8T 1.0 kg • m
Major parts
Screw
(Diameter
× pitch)
Strength
(grade)
Tightening torque Remarks
Injection nozzle holder nut M6 8.8T 1.0 kg • m
Injection pump bracket M10 8.8T 4.4 kg • m
Injection pump coupling bolt M10 – 6.0 kg • m
Injection pump driving gear nut M24
× 1.5 8.8T 25.0 kg • m
High pressure injection pipe fixing
cap nut
M14
× 1.5 8.8T 3.0 kg • m
Injection pump delivery valve
holder
–– 13 ~ 14 kg • m

Doosan DE12TIS Specifications

General

Brand	Doosan
Model	DE12TIS
Category	Engine
Language	English