MTD BCR4 MAINTENANCE SCHEDULE, LINE INSTALLATION, Check for Loose Fastener Parts, After Each Use Clean Unit and Labels, NOTE, NOTE, DO NOT, WARNING, REFER TO, WARNING:

MAINTENANCE & REPAIR INSTRUCTIONS

MAINTENANCE SCHEDULE

Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be a part of any seasonal tune-up.

NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to any non-road engine repair establishment, individual or authorized service dealer.

WARNING: To prevent serious injury, never perform maintenance or repairs with unit running. Always service and repair a cool unit. Disconnect the spark plug wire to ensure that the unit cannot start.

NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by any non-road engine repair establishment, individual or authorized service dealer.

In order to assure peak performance of your engine, inspection of the engine exhaust port may be necessary after 50 hours of operation. If you notice lost RPM, poor performance or general lack of acceleration, this service may be required. If you feel your engine is need of this inspection, refer service to any non-road engine repair establishment, individual or authorized service dealer for repair. DO NOT attempt to perform this process yourself as engine damage may result from contaminants involved in the cleaning process for the port.

FREQUENCY	MAINTENANCE REQUIRED	REFER TO
Before starting engine	Fill fuel tank with fresh fuel	Page 9
	Check oil	Page 18
Every 10 hours	Clean and re-oil air filter	Page 17
First change at 10 hours	Change oil	Page 18
Every 25 hours thereafter	Change oil	Page 18
Every 25 hours	Clean spark arrestor	Page 17
10 hours on new engine	Check rocker arm to valve clearance and adjust	Page 19
Every 25 hours	Check rocker arm to valve clearance and adjust	Page 19
Every 25 hours	Check spark plug condition and gap	Page 21

Check for Loose Fastener Parts

•Bump Head™

•String Guard Screws

After Each Use Clean Unit and Labels

•Clean the unit using a damp cloth with a mild detergent.

•Wipe off the unit with a clean dry cloth.

•Keep air vents free from debris at all times.

LINE INSTALLATION

This section covers both membrane line and standard single line installation.

Always use manufacturer’s 0.095 inch (2.41 mm) replacement line. Line other than the specified may cause the engine to overheat or fail.

WARNING: To prevent serious personal injury, never use metal-reinforced line, wire or rope. These can break off and become dangerous projectiles.

There are two ways to replace the trimming line:

•Wind the inner reel with new line

•Install a prewound inner reel

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