Maintenance And Repair Instructions - Yard Machines 769-02636 Operator's Manual

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:
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.
FREQUENCY
Before starting engine
Every 10 hours
Every 25 hours
Every 50 hours
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:
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
Hubs
To prevent serious
injury, never perform
MAINTENANCE REQUIRED
Fill fuel tank with fresh fuel mix
Clean and re-oil air filter
Check and clean spark arrestor
Check spark plug condition and gap
Inspect exhaust port and spark arrestor screen for clogging or
obstruction to assure maximum performance levels
To prevent serious
personal injury,
Clevis Pin Clip
Fig. 11
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.
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.
Felt
Washer
Shaft
L
REFER TO
Page 8
Page 12
Page 12
Page 13
Page 12
Stagger Tips
L
R
Fig. 12
R
11