Ryobi 510r - Manual (Page 13)

MAINTENANCE AND REPAIR INSTRUCTIONS
13
Clevis Pin Clip
Felt
Cushion
Shaft
Felt
Cushion
Align Tips
R
R
L
L
Clevis Pin
NOTE: Some maintenance procedures may require
special tools or skills. If you are unsure about
these procedures take your unit to an authorized
service dealer.
MAINTENANCE SCHEDULE
These required maintenance procedures should be
performed at the frequency stated in the table. They
should also be included as part of any seasonal tune-up.
WARNING: To prevent serious injury, never
do maintenance or repairs with unit running.
Always do maintenance and repairs on a
cool unit. Disconnect spark plug wire to
ensure the unit will not start.
Fig. 15
Fig. 16
TINE REMOVAL AND REPLACEMENT
All 4 tines should be replaced 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. 15).
3. Remove the tines and felt cushions from the shaft.
4. Clean and oil the shaft.
5. The tines are stamped with the letter "R" or "L" to
identify their position on each side of the gearbox
when facing the front of the unit.
6. Replace the tines and felt cushions onto the shaft
with the hubs on the tines facing each other.
7. Ensure the tips on tines are aligned in the same
direction with each other before reinstalling the clevis
pins and pin clips (Fig. 16).
8. Repeat this procedure on the opposite side.
NOTE: When installed correctly, there will be an "R" and
"L" tine on each side of the gearbox. The tips on
the tines line up in the same direction. It is
important to install the tines correctly.
FREQUENCY MAINTENANCE REQUIRED REFER TO
Before Starting Engine Fill fuel tank with fresh fuel Page 9
Check oil Page 14
Every 10 Hours Clean and re-oil air filter Page 15
1st Change at 10 Hours Change oil Page 14
Every 25 Hours There After Change oil Page 14
Every 25 Hours Clean spark arrestor Page 18
10 Hours on New Engine Check rocker arm to valve clearance and adjust as required Page 16
Every 25 Hours Check rocker arm to valve clearance and adjust as required Page 16
Every 25 Hours Check spark plug condition and gap Page 18