Doosan DV11 - Adjusting of Valves; Adjusting of Engine Brake

DV11
Operation and Maintenance
37
Technical Information
Printed in Mar. 2005 PS-MMA0608-E1A
z Adjusting of valves (Type 1)
1 2 3 4 5 6
Cylinder No
Valve adjusting
Exhaust Intake Exhaust Intake Exhaust Intake Intake Exhaust Intake Exhaust Intake Exhaus
t
#1 cylinder top dead center
(#5 cylinder valve overlap)
◎ ◎ ◎ ◎ ◎
Crankshaft 90° rotation
◉
360° rotation
#5 cylinder top dead center
(#1 cylinder valve overlap)
● ● ● ● ●
Crank shaft 450° rotation
○
z Adjusting of valves (Type 2)
Adjusting of the valve overlapping on each cylinder is done as follow.
When each cylinder is valve overlap
(Firing cylinder no. order)
1 4 2 5 3 6
Valve adjusting cylinder No.
5 3 6 1 4 2
z Adjusting of engine brake (Adjusting of slave piston)
Cylinder no.
Slave piston adjusting
Engine brake slave piston adjusting No.
#1 cylinder top dead center
(#5 cylinder valve overlap)
1 2 4
360° rotation
(#1 cylinder valve overlap)
3 5 6
* When adjust slave piston of the engine brake, adjust only exhaust valve
correspond to the cylinder number.