Homelite UT10570 manual Cleaning the Starter Unit, Checking the Fuel Filter, Cleaning the Engine

MAINTENANCE

CLEANING THE STARTER UNIT

See Figure 73.

Use a brush or compressed air to keep the cooling vents of the starter assembly free and clean of debris.

Fig. 73

CLEAN FLYWHEEL

FINS

Fig. 75

CHECKING THE FUEL FILTER

See Figure 76.

Check the fuel filter periodically. Replace it if contaminated or damaged.

CLEANING THE ENGINE

See Figures 74 and 75.

Clean the cylinder fins and flywheel fins with compressed air or a brush periodically. Dangerous overheating of the engine may occur due to impurities on the cylinder.

WARNING

Never run the saw without all the parts, including the drivecase cover and starter housing, securely in place.

Because parts can fracture and pose a danger of thrown objects, leave repairs of the flywheel and clutch to trained Homelite Service Center personnel.

CLEAN

CYLINDER FINS

Fig. 74

Note: Depending on the type of fuel used, the type and amount of oil used, and/or your operating conditions, the exhaust port and muffler may become blocked with carbon deposits. If you notice a power loss with your gas powered tool, you may need to remove these deposits to restore performance. We highly recommended that only qualified service technicians perform this service.

FUEL FILTER

Fig. 76

REPLACING THE SPARK PLUG

See Figure 77.

This engine uses a Champion RCJ-4 with .025 in. (0.63

mm)electrode gap. Use an exact replacement and replace every six months or more frequently, if necessary.

1.Loosen the spark plug by turning it counterclockwise with a wrench.

2.Remove the spark plug.

3.Hand thread the new spark plug, turning it clockwise.

Note: Be careful not to cross-thread the spark plug. Cross-threading will seriously damage the product.

Fig. 77

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