Fayat Dynapac DFP9, Operating Instruction, Maintenance Instruction

Page: 93 / 106

6. Assemble the V-belt guard (1) with fastening screws (2).
8.9.5 Checking, cleaning the spark plug
NOTICE!
Danger of engine damage!
– Do not use spark plugs with incorrect heat
value.
Protective equipment:
n
Working clothes
n Protective gloves
Tool: n 13/16 inch spark plug spanner
1. Park the machine in secured condition
Ä
Chapter 6.5
‘Parking the machine in secured condition’ on page 61 .
2. Allow the engine to cool down for at least 15 minutes.
3. Clean the area around the spark plug.
4. Unscrew the spark plug using a 13/16 inch spark plug
spanner.
5. Check the condition of the spark plug, clean if necessary.
6. In case of excessive combustion residues or burned off elec-
trodes, replace the spark plug
Ä
Chapter 8.8.1 ‘Replacing
the spark plug’ on page 78 .
7. Check the electrode gap of the spark plug with a feeler
gauge, if necessary, adjust the gap.
ð
Nominal value: 0.7 - 0.8 mm (0.028 - 0.032 in)
8. Carefully screw in the spark plug by hand.
9. Once the sealing surface of the used spark plug is in contact,
tighten for another 1/8 to 1/4 turn with the spark plug
spanner.
B-834-0144
1
2
Fig. 100
Fig. 101
Fig. 102
Maintenance – As required
DFP9 93