MTD 769-01534 MAINTENANCE SCHEDULE, TINE REMOVAL AND REPLACEMENT, MAINTENANCE AND REPAIR INSTRUCTIONS

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 mix	Page 8

Every 10 hours	Clean and re-oil air filter	Page 12

Every 25 hours	Check and clean spark arrestor	Page 12
Every 25 hours	Check spark plug condition and gap	Page 13
	Check spark plug condition and gap	Page 13

Every 50 hours	Inspect exhaust port and spark arrestor screen for clogging or	Page 12
Every 50 hours	obstruction to assure maximum performance levels	Page 12
	obstruction to assure maximum performance levels

TINE REMOVAL AND REPLACEMENT

Replace all four (4) tines at the same time, because they will wear evenly through normal use. Work on one side at a time.

WARNING: To prevent serious personal injury,

always wear heavy gloves when handling the tines.

1.Put the On/Off Stop Control in the STOP (O) position and disconnect the spark plug wire.

2.Remove the clevis pin clips and clevis pins (Fig. 11).

3.Remove the tines and felt washers from the shaft.

4.Clean and oil the shaft.

5.The tines are stamped with the letter "R" or "L" to identified their position on each side of the gearbox when facing the front of the unit.

6.Replace the tines and felt washers onto the shaft with the hubs on the tines facing each other.

Clevis Pin

Felt

Washer

Tine	Clevis Pin Clip
Hubs	Clevis Pin Clip
	Fig. 11

7.Before you reinstall the clevis pins and pin clips, ensure that the tips on the tines are staggered when compared to each other (Fig. 12).

8.Repeat this procedure on the opposite side.

NOTE: When installed correctly, there will be an "R" and "L" tine on both the sides of the gearbox and the tips of the tines. These letters will line up in the same direction for each side. It is important that the tines are installed correctly.

Stagger Tips

Felt

Washer

ShaftL

Fig. 12