McCulloch MT705 manual Maintenance and Repair Instructions, Maintenance Schedule

MAINTENANCE AND 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 in 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 8
Every 10 hours	Clean and re-oil air filter	Page 14
Every 25 hours	Check and clean spark arrestor	Page 15
	Check spark plug condition and gap	Page 16
Every 50 hours	Inspect exhaust port and spark arrestor screen for clogging or	Page 15
	obstruction to assure maximum performance levels

LINE INSTALLATION FOR THE SPEEDSPOOL®

WARNING: Never use metal- reinforced line, wire,

chain or rope. These can break off and become dangerous projectiles.

Always use original equipment manufacturer 0.080 inch (2.03 mm) replacement line. Lines other than those specified may make the engine overheat or fail.

There are two methods to replace the SpeedSpool® trimming line:

•Wind the inner reel with new line

•Install a pre-wound inner reel

Winding the Inner Reel With New Line

NOTE: It Is unnecessary to remove the bump knob to install a new trimming line.

1.Cut two pieces of 0.080 inch (2.03 mm) trimming line, 10 feet (3 m) long.

2.Hold the outer spool and turn the inner reel counterclockwise to line up the arrows on the outer spool and inner reel (Fig. 12).

WARNING: Always use the correct line length

when installing trimming line on the unit. The line may not release properly if the line is too long.

Top View Of The SpeedSpool®

Arrows

Outer Spool

Inner Reel

Bump Knob

Fig. 12

11