Ryobi 510r User Manual download pdf (Page 13)

MAINTENANCE AND REPAIR INSTRUCTIONS

Clevis Pin Clip

Felt

Cushion

Shaft

Felt

Cushion

Align Tips

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

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Ryobi 510r User Manual Page 13

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