26
Operating time
Item
Before
operation
After
refuleling
Daily
(10h)
30h
50h
200h
Before
storage
Corres-
ponding P
Engine oil
Inspect/clean
13
Replace
*
1
22
Tightening parts
(bolt, nut)
Inspect
24
Fuel tank
Clean/inspect
—
Drain fuel
*
3
25
Throttle lever
Check function
—
Stop switch
Check function
22
Cutting tool
Inspect
10
Idle speed
Inspect/adjust
18
Air cleaner
Clean
23
Spark plug
Inspect
24
Cooling air passage and
Clean/inspect
25
Fuel pipe
Inspect
25
Replace
*
2
—
Gear-case grease
24
Clean/replace
24
Valve clearance (intake valve
and exhaust valve)
Inspect/adjust
*
2
—
Carburetor
Drain fuel
*
3
25
*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.