Electrical system
OPM 320 en-GB
58
©
Scania CV AB 2019, Sweden
3.
Remove the spark plug connector by pulling
it straight upwards.
IMPORTANT!
Do not pull on the arm as this could damage the
spark plug connector.
4.
Check that the spark plug connector does not
have any visible damage.
5.
Unscrew the spark plug using the spark plug
socket.
IMPORTANT!
Do not touch the spark plug insulator with your
fingers. If this occurs, clean the insulator with al-
cohol.
6.
Place the new spark plug in the spark plug
socket and tighten the spark plug. Tightening
torque 30 Nm (22 lb-ft).
IMPORTANT!
Do not lower the spark plug through the rocker
cover since this could cause the gap between the
spark plug electrodes to be incorrect. Always
place the spark plug in the spark plug socket be-
fore fitting. The correct gap between the spark
plug electrodes is 0.25 mm.
7.
Fit the spark plug connector.