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13.
MAINTENANCE
and
STORING
The following maintenance jobs apply when the engine
is
operated correctly under normal conditions. The indicated
maintenance intervals are by
no
means guarantees for maintenance free operations during these intervals.
For example, if the engine is operated in extremely dusty conditions, the air cleaner should be cleaned every day, instead
of
every 50 hours.
13-1 DAILY CHECKS
and
MAINTENANCE
Checks and maintenance
Remove dust from whatever parts which
accumulated dust.
Check external fuel leakage.
If
any, retighten or
replace.
Check screw tightening. If any loose one
is found,
re-tighten.
Check
oil
level in crankcase and add up as necessary
Reasons for requiring them
The governor linkage is especially susceptible
to
dust.
Not only wasteful but
also
dangerous.
Loose screws and nuts
will
result
in
vibration
accidents.
If
the engine is operated without sufficient oil, it will
fail.
13-2 EVERY 20 HOURS CHECKS
and
MAINTENANCE
i
Checks and maintenance
To remove run-in wear particles.
Change crankcase
oil
Reasons for requiring them
13-3 EVERY
50
HOURS (10 DAY) CHECKS
and
MAINTENANCE
b
Checks and maintenance
Reasons for requirhg them
Change crankcase
oil
Output power
is
reduced and starting
Check spark plug. If contaminated, wash
in
Clogged air cleaner harms engine operation.
Clean air cleaner
Contaminated
oil
acceralates wear.
gasoline
or
polish with emery paper.
is made difficult.
~
.L
134 EVERY
100
-
200
HOURS (MONTHLY) CHECKS
and
MAINTENANCE
Checks and maintenance
Reasons for requiring them
Clean fuel filter and fuel tank.
The
engine
will
be out of order
Clean contact breaker points.
The engine output drops.
~ ~~ ~ ~ ~~ ~~~
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