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n (DIESEL ENGINE) DRAIN WATER FROM FUEL FILTER
Loosen the combination sensor plug and drain any water and
sediment accumulated at the bottom of the filter.
NOTICE
Fuel will also drain out of the fuel filter, so prepare a suitable con-
tainer to catch it. Always be sure to wipe up any spilled fuel.
n (LPG ENGINE) CHECK VAPORIZER FOR TAR, DRAIN
The vaporizer is a device used during LPG operation to control and reduce fuel pressure within the LPG cylinder
and regulate vaporization. Tar, a thick, sticky liquid, is produced during this process and accumulates in the
vaporizer. Excessive tar buildup in the vaporizer adversely affects idling speed.
NOTICE
Tar must be drained from the vaporizer at least once per month.
•
Ensure that the service valve on the fuel feed line is turned fully to the OFF position.
Otherwise, pressure in the line may cause operator injury when the drain plug is removed.
•
Always wear protective glasses or goggles.
•
Do not smoke or allow any open flame near the worksite.
1. Run the engine until it is fully warmed up to operating
temperature.
2. As the engine continues to run, close the service valve
on the line from the LP tank.
3. Turn the ignition switch to the OFF position when the
engine stops.
4. Place a rag under the drain valve to catch the draining
tar.
5. Remove the drain plug from the bottom of the vaporizer.
6. Reinstall the drain plug after draining the tar onto the rag.
n CHECK RADIATOR HOSES FOR CRACKING, DAMAGE
n CHECK OPERATING CONDITION OF RADIATOR CAP,
CHECK INSTALLATION
n CHECK FAN FOR DEFORMATION, CRACKING AND
DAMAGE
n CHECK FAN FOR LOOSENESS AND MOUNTING
n CHECK, ADJUST ALTERNATOR BELT (DRIVE BELT) TENSION
n (GAS & LP ENGINES) CHECK SPARK PLUGS FOR BURNING OF ELECTRODE, BURNING OF
INSULATOR
See procedure on page 4-19.
n (DIESEL ENGINE) CHANGE OIL IN ENGINE OIL PAN
See procedure on page 4-16.
31. MAINTENANCE
4-23
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