21
*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.
Operating time
Item
Before
operation
After
lubrication
Daily
(10h)
30h 50h 200h
Shutdown
/rest
Corres-po
nding P
Inspect/clean
○
11
Engine oil
Replace
○
*1
17
Tightening parts
(bolt, nut)
Inspect
○
19
Clean/inspect
○
―
Fuel tank
Drain
fuel
○
*3
20
Throttle lever
Check function
○
13
Stop switch
Check function
○
13
Cutting blade
Inspect
○
○
9
Low-speed rotation
Inspect/adjust
○
15
Air cleaner
Clean
○
18
Ignition plug
Inspect
○
19
Cooling air duct
Clean/inspect
○
19
Inspect
○
19
Fuel pipe
Replace
◎
*2
―
Gear-case grease
Refill
○
19
Fuel
filter
Clean/replace
○
19
Clearance between air intake
valve and air discharge valve
Adjust
◎
*2
―
Engine
overhaul
◎
*2
―
Carburetor
Drain
fuel
○
*3
20