Dolmar MS-250.4 Manuel D'instructions page 22

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
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
lubrication (10h)
○
○
○
○
○
○
○
○
○
21
Shutdown
50h 200h
/rest
*1
○
*3
○
*2
◎
○
*2
◎
*2
◎
*3
○
Corres-po
nding P
11
17
19
―
20
13
13
9
15
18
19
19
19
―
19
19
―
―
20