Check, Clean The Spark Plug, Replace If Necessary - Fayat Bomag BP 20/50 Operating Instructions Manual

Maintenance every 6 months
6.13 Check, clean the spark plug,
replace if necessary
Danger
!
Danger of burning!
Let the engine cool down before unscrewing
the spark plug.
Caution
!
In case of excessive combustion residues,
burned off electrodes or torn insulator replace
the spark plug.
Do not use spark plugs with incorrect heat val-
ue. An incorrect spark plug can cause damage
to the engine.
Fig. 52
Pull off the spark plug socket (1) (Fig. 52) and
l
unscrew the spark plug (2).
50
0,7 - 0,8 mm
0.028 - 0.032 in
Fig. 53
Check the spark plug (Fig. 53) visually and
l
clean it if necessary.
Check the electrode gap with a feeler gauge, if
l
necessary adjust the gap to 0.7 - 0.8 mm
(0.028 - 0,032 in).
Turn the spark plug carefully in by hand.
l
Once the sealing surface of the new spark
l
plug is in contact tighten for another 1/2 turn
with the spark plug spanner.
Once the sealing surface of the used spark
l
plug is in contact tighten for another 1/8 to 1/4
turn with the spark plug spanner.
Caution
!
The spark plug must be correctly tightened. An
incorrectly tightened spark plug can get very
hot and cause engine damage.
BOMAG
690206
BP 20/50, BP 25/50