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*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-
ponding P
Inspect/clean ٤ 12
Engine oil
Replace ٤
*1
18
Tightening parts
(bolt, nut)
Inspect ٤ 20
Clean/inspect ٤ ̆
Fuel tank
Drain fuel ٤
*3
21
Throttle lever Check function ٤ 14
Stop switch Check function ٤ 14
Cutting blade Inspect ٤ ٤ 10
Low-speed rotation Inspect/adjust ٤ 16
Air cleaner Clean ٤ 19
Ignition plug Inspect ٤ 20
Cooling air duct Clean/inspect ٤ 20
Inspect ٤ 20
Fuel pipe
Replace ٧
*2
̆
Gear-case grease Refill
٤
20
Fuel filter Clean/replace ٤ 20
Clearance between air intake
valve and air discharge valve
Adjust ٧
*2
̆
Engine overhaul ٧
*2
̆
Carburetor Drain fuel ٤
*3
21