Operating time
Item
Engine oil
Tightening parts
(bolt, nut)
Fuel tank
Throttle lever
Stop switch
Cutting blade
Low-speed rotation
Air cleaner
Ignition plug
Cooling air duct
Fuel pipe
Gear-case grease
Fuel filter
Clearance between air intake
valve and air discharge valve
Engine overhaul
Carburetor
*1 Perform initial replacement after 20h operation.
*2 For the 200 operating hour inspection, request Authorized Service Agent or a machine shop.
*3 After emptying the fuel tank, continue to run the engine and drain fuel in the carburetor.
Before
operation
lubrication
Inspect/clean
Replace
Inspect
Clean/inspect
Drain fuel
Check function
Check function
Inspect
Inspect/adjust
Clean
Inspect
Clean/inspect
Inspect
Replace
Refill
Clean/replace
Adjust
Drain fuel
After
Daily
30h
(10h)
23
Shutdown/
50h
200h
rest
1
*
3
*
2
*
*
2
*
2
3
*
Corres-
ponding P
13
19
21
—
22
—
17
11
17
20
21
21
21
—
21
21
—
—
22