7 - MAINTENANCE INSTRUCTIONS

7 - MAINTENANCE INSTRUCTIONS

7-2. AIR FILTER

CAUTION

Never operate saw without the air filter. Dust and dirt will be drawn into engine and damage it. Keep the air filter clean!

TO CLEAN AIR FILTER:

1.Remove knob (A) holding air filter cover in place, remove the top cover (B) by loosening the cover retaining screws. Cover will lift off.(Figure 7-2A)

2.Completely remove the air filter box (B) from the unit. (Figure 7-2B)

3.Clean air filter box by using air cleaner or brush.

NOTE: Never clean air filter with liquid material or it may cause air filter damaged.

4.Install air filter. Install engine / air filter cover. Make sure latch (E) latch (F) and cover fit properly. Tighten the cover retaining knob securely. (Figure 7-2C & Figure 7-2D)

WARNING

Never perform maintenance when the engine is hot, to avoid any chance of burning hands or fingers.

5.Pull filter off with a twisting motion. Discard filter.

6.Install new filter. Insert end of filter into tank opening. Make sure filter sits in bottom corner of tank. Use a long handle screwdriver to aid in filter placement if necessary.

7.Fill tank with fresh fuel / oil mixture. See Section 4, Fuel and Lubrication. Install fuel cap.

B

7-3A

7-4. SPARK ARRESTER SCREEN (Figure 7-

4A)

7-5. SPARK PLUG

NOTE: For efficient operation of saw engine, spark plug must be kept clean and properly gapped.

1.Push STOP switch down.

2.Remove air cleaner cover.

3.Disconnect the wire connector (G) from the spark plug

(H) by pulling and twisting at the same time (Figure 7- 5A).

4.Remove spark plug with spark plug socket wrench.

DO NOT USE ANY OTHER TOOL.

5.Check electrode gaps with wire feeler gauge and set gaps to .025” (.635mm) if necessary.

6.Reinstall a new spark plug.

NOTE: A resistor spark plug must be used for replacement (Part no. 9295-310801).

NOTE: This spark ignition system meets all requirements of the Canadian Interference-Causing Equipment Regulations.

3.Allow the engine to cool (approx. 5 minutes).

4.Using a spark plug wrench, remove the spark plug.

5.Pour 1 teaspoon of clean 2-cycle oil into the combus- tion chamber. Pull starter rope slowly several times to coat internal components. Replace spark plug (Figure

7-7A).

NOTE: Store the unit in a dry place and away from possi- ble sources of ignition such as a furnace, gas hot water heater, gas dryer, etc.

B

C

NOTE: A clogged spark arrester screen will dramatically reduce engine performance.

G

7-7A

A

D

7-2A7-2B

B

F

EF

7-2C7-2D

7-3.FUEL FILTER

CAUTION

Never operate your saw without a fuel filter. The fuel filter should be replaced after each 20 hours of use. Drain fuel tank completely before changing filter.

1.Completely remove the fuel cap from the gas tank.

2.Bend a piece of soft wire to form a hook at the end.

3.Reach into fuel tank opening and hook fuel line. Carefully pull the fuel line toward the opening until you can reach it with your fingers.

NOTE: Do not pull hose completely out of tank.

4.Lift filter (A) out of tank (Figure 7-3A).

16

1.Remove the 2 nuts (A) and pull muffler out. (Figure7- 4A).

2.Remove the 1 screw (B) that holds the spark arrester cover (C) . (Figure 7-4B)

3.Discard the used spark arrester screen (D) and replace it with a new one.

4.Reassemble the muffler components and install the muffler to the cylinder. Tighten securely.

A

B

7-3A

C D

A

B

7-4B

H

7-5A

7-6.CARBURETOR ADJUSTMENT

The carburetor was pre-set at the factory for optimum per- formance. If further adjustments are necessary, please take your unit to the nearest Authorized Service Center listed in the Yellow Pages.

7-7.STORING A CHAIN SAW

CAUTION

Never store a chain saw for longer than 30 days without performing the following procedures.

Storing a chain saw for longer than 30 days requires stor- age maintenance. Unless the storage instructions are fol- lowed, fuel remaining in the carburetor will evaporate, leav- ing gum-like deposits. This could lead to difficult starting and result in costly repairs.

1.Remove the fuel tank cap slowly to release any pres- sure in tank. Carefully drain the fuel tank.

2.Start the engine and let it run until the unit stops to remove fuel from carburetor.

17

7-8.REMOVING A UNIT FROM STORAGE

1.Remove spark plug.

2.Pull starter rope briskly to clear excess oil from com- bustion chamber.

3.Clean and gap spark plug or install a new spark plug with proper gap.

4.Prepare unit for operation.

5.Fill fuel tank with proper fuel / oil mixture. See Fuel and Lubrication Section.

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McCulloch MCC1635AK-CA, MCC1435A-CA AIR Filter, Spark Plug, Fuel Filter, Carburetor Adjustment, Storing a Chain SAW

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