Doosan AD158TI, Руководство по эксплуатации и техническому обслуживанию

Страница: 110 / 294

Disassembly and assembly of major components - 104 -
6.3.22. Valve clearance adjust procedure
Method 1
1) Rotate the crankshaft so that #1. cylinder may be positioned at the compression TDC (Top Dead Cen-
ter).
Note :
#1. Cylinder is located at the side where cooling water pump was installed.
In case of 8/12 cylinder engine, #6. cylinder is positioned at the valve overlap when #1. cylinder is
positioned at the compression TDC (Top dead center).
In case of 10 cylinder engine, #7. cylinder is positioned at the valve overlap when #1. cylinder is
positioned at the compression TDC (Top dead center).
2) Loosen the lock nut of the #1. cylinder
rocker arm.
3) Push the feeler gauge between a rocker
arm and a valve stem.
4) Adjust the clearance screw respectively
and then tighten with the lock nut.
5) As for the valve clearance, adjust it when in cold, as follows.
6) Rotate the crankshaft. When a cylinder reaches the compression TDC (Top Dead Center), adjust the
valve clearance of the cylinder
7
8
9
10
11
12
1
2
3
4
5
6
12
11
10
9
8
7
6
5
4
3
2
1
6
7
8
9
10
1
2
3
4
5
10
9
8
7
6
5
4
3
2
1
5
6
7
8
1
2
3
4
8
7
6
5
4
3
2
1
EA6O6008
8 Cylinder engine 10 Cylinder engine 12 Cylinder engine
Flywheel
Cooling fan
1
2
3
EDV2218007
Specified Value Measurement Tolerance
In. Valve Ex. Valve In. Valve Ex. Valve
0.25 mm 0.35 mm ±0.05 mm