Ryobi 410r - Manual (Page 12)

12
MAINTENANCE AND REPAIR INSTRUCTIONS
Fig. 12
Clevis Pin Clip
Felt
Washer
Shaft
Felt
Washer
Tine Hubs
Align Tips
R
R
L
L
Clevis Pin
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.
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.
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.
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 9
Every 10 hours Clean and re-oil air filter Page 13
Every 25 hours
Check and clean spark arrestor
Check spark plug condition and gap
Page 13
Page 14
Every 50 hours
Inspect exhaust port and spark arrestor screen for clogging or
obstruction to assure maximum performance levels
Page 13
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.
7. Ensure the tips on tines are aligned in the same
direction with each other before reinstalling the clevis
pins and pin clips (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 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.
WARNING: To prevent serious personal
injury, always wear heavy gloves when
handling the tines.
Fig. 11