15. MAINTENANCE and STORING
The following maintenance jobs apply when the engine is operated correctly under normal conditions. The indicatedmaintenance intervalsare bynomeansguaranteesformaintenancefreeoperationsduringthese 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.
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I maintenanceReasonsandChecks | for requiring them |
Remove dust from whatever parts which accumulated dust.
The governor linkage is especially susceptible to dust.
If any, retighten | Not only wasteful but also dangerous Check external fuel |
or replace.
Check screw tightening. If any loose one is found,
Check oil level in crankcase and add up as necessary.
Loose screws and nuts will result in vibration accidents.
If the engine is operated without sufficient oil, it will fail.
15-2 EVERY 20 HOURS CHECKS and MAINTENANCE
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Checks and maintenance Reasons | for requiring them |
Change crankcase oii. | To remove |
15-3 EVERY 50 HOURS (IO DAYS)CHECKS and MAINTENANCE
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requiringthemmaintenanceReasonsforandChecks
Change crankcase oil. | Contaminated oil accelerates wear. |
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Clean air cleaner.
plug. If contaminated, wash i n
gasoline or polish with emery paper.
Clogged air cleaner harms engine operation.
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Output power is reduced and starting is made Check spark difficult.
15-4 EVERY 100 - 200 HOURS (MONTHLY) CHECKS and MAINTENANCE
Checks and maintenance
Cleanfuel filterand fuel tank.
Clean contact breaker points.
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1
Reasons for requiring them
The engine will be out of order.
The engine output drops.
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