Vetus D-LINE VD4.120 Operation Manual page 71

6 Maintenance
Determine which cylinders should be adjus-
ted from the setup chart:
VD4
Valve overlap Setting the cylinder
1
3
4
2
• Place the angle gauge with the key socket
on the adjusting screw.
• Fix the magnet of the angle gauge.
• Turn the angle gauge in a clockwise directi-
on until it is seated (rocker arm has no play)
and turn the scale to zero.
VD6
Valve overlap
4 1
2
5
1 3
3
6
2
4
• Rotate the angle gauge anticlockwise until
you reach the specified rotational angle:
Valve clearance IN
Setting the cylinder
6
2
4
1
5
3
Inlet valve 75° +10°
EX Exhaust valve 120° +10°
Checking valve clearance
Every 1500 operating hours.
69