28
*1 Perform initial replacement after 20h operation.
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*3 After emptying the fuel tank, continue to run the engine and drain fuel in the carburetor.
Operating time
Item
Before
operation
After
lubrication
Daily
(10h)
30h
50h
200h
Shutdown/
rest
Engine oil
Inspect
Replace
*
1
Tightening parts
(bolt, nut)
Inspect
Fuel tank
Clean/inspect
Drain fuel
*
3
Throttle lever
Check function
Stop switch
Check function
Cutting blade
Inspect
Low-speed rotation
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Air cleaner
Clean
Ignition plug
Inspect
Cooling air duct
Clean/inspect
Fuel pipe
Inspect
Replace
*
2
Gear-case grease
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Clean/replace
Clearance between air intake
valve and air discharge valve
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*
2
Engine overhaul
*
2
Carburetor
Drain fuel
*
3