Troy-bilt TB250B User Manual download pdf (Page 11)

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.

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.

AIR FILTER MAINTENANCE

Clean and re-oil the air filter every 10 hours of operation.

It is an important item to maintain. Failure to maintain

your air filter properly can result in poor performance or

can cause permanent damage to your engine.

1. Remove the carburetor/air filter cover by pushing on

the tab, located to the right of the cover (Fig. 7).

2. Swing the air filter cover open. It will swing on the

hinges to the left of the cover (Fig. 8).

3. Remove the air filter (Fig. 8).

4. Wash the filter in detergent and water. Rinse the

filter thoroughly and allow it to dry (Fig. 9).

5. Apply enough clean SAE 30 motor oil to lightly coat

the filter (Fig. 10).

6. Squeeze the filter to spread and remove excess oil

(Fig. 11).

7. Reinstall the filter and close the air filter cover (Fig. 7).

NOTE: If the unit is operated without the air filter, you will

VOID the warranty.

Fig. 7

To avoid serious

personal injury,

always turn your unit off and allow it to cool

before you clean or service it.

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.

WARNING:

Air Filter

Cover

Tab

Air Filter

Fig. 8

Tab

FREQUENCY MAINTENANCE REQUIRED REFER TO

Before starting engine Fill fuel tank with fresh fuel Page 8

Every 10 hours Clean and re-oil air filter Page 11

Every 25 hours Check spark plug condition and gap Page 12

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Troy-bilt TB250B User Manual Page 11

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