TP-6881 7/1524 Section 2 Scheduled Maintenance
Remove all combustible materials from the exhaust
location. Combustible materials include building
materials as w ell as natural surroundings. Keep dry
field grass, foliage, and combustible landscaping
material a minimum of 1.5 m (5 ft.) from the exhaust
outlet.
Periodically inspect the exhaust system components for
cracks, leaks, and corrosion.
D Check for corroded or broken metal parts and replace
them as needed.
D Check that the exhaust outlet is clear.
2.7 Stepper Motor Coupling
Replace the stepper motor coupling and bushings at the
intervals shown in the service schedule. See the Parts
Catalog for replacement part numbers.
Figure 2-9 shows the location of the coupling assembly
under the air cleaner. Loosen the s et screw to remove
the coupling from the motor s haft.
1. Coupling and bushing
1
tp6881
Figure 2-9 Stepper Motor Coupling
1
1. Coupling
2. Bushing
2
Figure 2-10 Stepper Motor Coupling and Bushing
2.8 Fuel System Maintenance
Explosive fuel vapors.
Can cause severe injury or death.
Use extreme care when handling,
storing, and using fuels.
WARNING
The fuel system. Explosive fuel vapors can cause severe
injury or death. Vaporized fuels are highly explosive. Use
extreme care when handling and storing fuels. Store fuels in a
well-ventilated area away from spark-producing equipment
and out of the reach of children. Never add fuel to the tank
while the engine is running because spilled fuel may ignite on
contact with hot parts or from sparks. Do not smoke or permit
flames or sparks to occur near sources of spilled fuel or fuel
vapors. Keep the fuel lines and connections tight and in good
condition. Do not replace flexible fuel lines with rigid lines. Use
flexible sections to avoid fuel line breakage caused by
vibration. Do not operate the generator set in the presence of
fuel leaks, fuel accumulation, or sparks. Repair fuel systems
before resuming generator set operation.
Gas fuel leaks. Explosive fuel vapors can cause severe
injury or death. Fuel leakage can cause an explosion. Check
the LPG vapor or natural gas fuel system for leakage by using
a soap and water solution with the fuel system test pressurized
to 6--8 ounces per square inch (10--14 inches water column).
Do not use a soap solution containing either ammonia or
chlorine because both prevent bubble formation. A successful
test depends on the ability of the solution to bubble.
LPG liquid withdrawal fuel leaks. Explosive fuel vapors
can cause severe injury or death. Fuel leakage can cause
an explosion. Check the LPG liquid withdrawal fuel system for
leakage by using a soap and water solution with the fuel
system test pressurized to at least 90 psi (621 kPa). Do not
use a soap solution containing either ammonia or chlorine
because both prevent bubble formation. A successful test
depends on the ability of the solution to bubble.
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