Makita EN4951SH EN4951SH Instruction Manual - Page 23

Air cleaner

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Attention after long-time storage -- Before startup after long-time shutdown, be sure to replace oil (refer to P19). Oil will deteriorate while the machine is kept out of operation. Operating time Item Engine oil Inspect Replace Tightening parts (bolt, nut) Inspect Fuel tank Clean/inspect Drain fuel Throttle lever Check function Stop switch Check function Cutting blades Inspect Low-speed rotation Inspect/adjust Air cleaner Clean Ignition plug Inspect Cooling air duct Clean/inspect Fuel pipe Inspect Replace Gear-case grease Refill Fuel filter Clean/replace Clearance between Adjust air intake valve and air discharge valve Engine overhaul Carburetor Drain fuel Before operation Daily (10h) 25h 50h *1 *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. 200h *2 *2 *2 Shutdown/ Corresponding rest P 10 19 21 - *3 22 12 12, 14 12, 17 14 20 21 21 21 - 18 21 - - *3 22 23

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23
Attention after long-time storage
-
Before startup after long-time shutdown, be sure to replace oil (refer to P19). Oil will deteriorate while the machine is kept out of operation.
Operating
time
Item
Before
operation
Daily
(10h)
25h
50h
200h
Shutdown/
rest
Corresponding
P
Engine oil
Inspect
10
Replace
*
1
19
Tightening parts
(bolt, nut)
Inspect
21
Fuel tank
Clean/inspect
-
Drain fuel
*
3
22
Throttle lever
Check function
12
Stop switch
Check function
12, 14
Cutting blades
Inspect
12, 17
Low-speed rotation
Inspect/adjust
14
Air cleaner
Clean
20
Ignition plug
Inspect
21
Cooling air duct
Clean/inspect
21
Fuel pipe
Inspect
21
Replace
*
2
-
Gear-case grease
Refill
18
Fuel filter
Clean/replace
21
Clearance between
air intake valve
and air discharge
valve
Adjust
*
2
-
Engine overhaul
*
2
-
Carburetor
Drain fuel
*
3
22
*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.