Manual

TP-6515 1/1128 Section 3 Scheduled Maintenance
3.3 S park Plugs
Reset the spark plug gap or replace the plugs with new
plugs as necessary.
1. Clean the area around the base of the spark plug to
keep dirt and debris out of the engine.
2. Remove the spark plug and check its condition.
Replace the spark plug i f it is worn or if its reuse is
questionable.
3. Check the spark plug gap using a wire feeler
gauge. See Figure 3-4 for the recommended
spark plug gap. Adjust the gap by carefully bending
the ground electrode. See Figure 3-5 and
Figure 3-6.
4. Reinstall the spark plug into the cylinder head.
Torque the spark plug to 24.4--29.8 Nm
(18--22 ft. lb.)
Generator Set
Spark Plug Gap
8.5 kW 0.51 mm (0.020 in.)
12/18RES 0.76 mm (0.030 in.)
Figure 3-4 Spark Plug Gap
1--514
Figure 3-5 Checking the Spark Plug Gap
1--511
Figure 3-6 Adjusting the Spark Plug Gap
3.4 A ir Cleaner Service
3.4.1 Air Cleaner, 8.5/12RES
The engine has a replaceable high-density paper air
cleaner element with an oiled foam precleaner. See
Figure 3-7.
1
2
3
4
5
6
7
586536
1. Cover knob
2. Air cleaner cover
3. Element cover nut
4. Element cover
5. Foam precleaner
6. Air cleaner element
7. Air cleaner base
Figure 3-7 Air Cleaner Components
Check for a buildup of dirt and debris around the air
cleaner system. Keep this area clean. Also check for
loose or damaged components. Replace all bent or
damaged air cleaner components.
Note: Operating the engine with loose or damaged air
cleaner components could allow unfiltered air
into the engine causing premature wear and
failure.
Precleaner Service
Use the following procedure to wash and reoil the
precleaner as indicated in the service schedule. Wash
and reoil the precleaner more often under extremely
dusty or dirty conditions.
1. Place the generator set master switch in the OFF/
RESET position.