Maintenance schedule

1.Before operation, pay particular attention to the tightness of Cutter Blade or nylon cutting head.

Check bolts and nuts and retighten if necessary.: Every 8 hour (Daily)

2.Check clogging of the cooling air passage and the cylinder fins. Clean them if necessary.: Every 8 hours (Daily)

3.Cleaning of air cleaner.: Every 8 hours (Daily)

1)Remove the air cleaner cover (1) and clean the sponge element (2). If there is excessive dust or dirt adhering to cleaner, clean it.

A clogged air cleaner may make it difficult or impossible to start the engine or increase the engine rotational speed.

2)Install the sponge element around the ribs of the air cleaner case.

4.Checkup of spark plug.: Every 8 hours (Daily)

The gap between the two electrodes of the spark plug should be 0.6 to 0.7 mm (0.024" to 0.028").

If the gap is too wide or too narrow, adjust it.

If the spark plug is clogged with carbon or fouled, clean it thoroughly or replace it.

5.Supply of grease to gear case.

Apply grease (SHELL ALVANIA No.3 or equivalent) to the gear case through the grease hole (3) every 30 hours.

(Genuine MAKITA grease may be purchased from your MAKITA dealer.)

6.Cleaning of muffler exhaust port: Every 50 hours (Monthly)

If the exhaust port (4) is clogged with carbon, remove it by scraping and tapping gently with a screwdriver or the like.

7.Check of fuel filter. If clogged, clean the filter.

8.Replace fuel lines.: Every 200 hours (Yearly)

9.Overhaul engine.: Every 200 hours (Yearly)

10.Replace packings and gaskets with new ones.: Every time engine is reassembled.

0.6mm-0.7 mm (0.024”-0.028”)

Grease case

(3)

(4)

General

Engine assembly, screws and nuts

Visual inspection for damage and tightness

 

Check for general condition and security

 

 

 

 

 

After each refuelling

Throttle lever

Functional check

 

Safety lock key

Functional check

 

ON-OFF switch

Functional check

 

 

 

Daily

Sponge element (air filter)

To be cleaned

 

Cooling air duct

To be cleaned

 

Cutting blade

Check for damage and sharpness

 

Idling speed

Inspection (cutting tool must not move)

 

 

 

Weekly

Spark plug

Inspection, replace if necessary

 

Muffler

Check and if necessary clean the opening

 

 

 

Quarterly

Suction head (gas line filter)

To be replaced

 

Fuel tank

To be cleaned

 

 

 

Shutting down procedure

Fuel tank

Empty fuel tank

 

Carburetor

Operate until engine runs out of fuel

 

 

 

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Makita RBC411 instruction manual Maintenance schedule