Maintenance Procedures Every 1000 Hours or 6 Months
8000 SRM 707
Maintenance Procedures Every 500 Hours or 3 Months
NOTE: Do these procedures in addition to the 250-
hour checks.
DRAIN TAR FROM AISAN LPG
REGULATOR
Remove tar drain screw from regulator. Allow tar
to drain from regulator. When tar has completely
drained, install tar drain screw in regulator. See Fig-
ure 29.
PCV VALVE
If the engine has a PCV valve (positive crankcase
ventilation valve), check the operation of the valve.
The check valve inside the PCV valve must permit
airflow in only one direction - from the valve cover.
See Figure 11.
1.
DRAIN SCREW
Figure 29. Aisan Regulator
Maintenance Procedures Every 1000 Hours or 6 Months
NOTE: Do these procedures in addition to the 500-
hour checks.
DIESEL FUEL SYSTEM
Install new fuel filter every 1000 hours or 6 months
of operation. If there is a problem with water in
the diesel fuel in your area, the fuel filter must be
changed more frequently than 1000 hours.
Fuel Filter, Replace
WARNING
The fuel filter is full of diesel fuel and can be a
fire hazard when removing. Place a container
under the fuel filter to catch spilled fuel.
1.
While holding the bottom of the fuel filter, re-
move capscrew at top of fuel filter assembly. See
Figure 30.
2.
Try to maintain the bottom seal between filter el-
ement and fuel filter bottom while removing fil-
ter element from fuel filter head.
3.
Empty excess fuel into an approved container.
Separate filter element from fuel filter bottom
and destroy filter element.
4.
Inspect top and bottom seals for damage and in-
stall new filter element.
5.
Use new O-ring between fuel filter and fuel filter
head. Lubricate O-ring with diesel fuel when it
is installed. When the engine can be operated,
check for leaks.
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