135-Hour Maintenace

Every 135 hours of operation,

remove and clean the muffler.

WARNING!

Never operate the machine with a damaged

or missing muffler or spark arrester! Operating with missing or dam- aged exhaust components is a fire hazard and could also damage your hearing.

1. Remove the spark plug boot.

. Remove the two 4 mm engine cover screws (located at the top of the recoil housing).

Rear Muffler

 

Spark Ar-

Forward

Shield

 

Muffler

 

rester Screen

 

 

Shield

 

 

 

 

 

 

5 mm Muffler

 

 

 

Screws

Muffler Gasket

 

 

 

Rear Muffler

 

26134

 

 

 

 

Shield Screw

 

 

Lower Muffler

 

 

 

 

Muffler

 

Screw

 

 

 

Figure 32

 

 

 

3.Loosen the 5 mm engine top cover screw (the screw is captive) and lift the cover from the engine.

4.Remove the two 5 mm muffler screws. Remove the lower muffler screw, then lift the muffler assembly from the engine.

5.Remove the rear muffler shield socket head screw and, while noting the orientation of parts, separate the muffler shield. See Figure 3.

6.Remove the spark arrester screen and clean with a stiff bristle brush.

7.Gently tap the muffler on a wood surface to dislodge any loose carbon.

8.Inspect the cylinder exhaust port for carbon buildup.

IMPORTANT!

If you note excessive carbon buildup, consult with an authorized servicing dealer.

9.Reassemble the muffler in the reverse order of disassembly.

Long Term Storage

Whenever the unit will not be used for 30 days or longer, use the following proce- dures to prepare it for storage:

nClean external parts thoroughly.

nDrain all the fuel from the fuel tank.

IMPORTANT!

All stored fuels should be stabilized with a fuel stabilizer such as STA-BIL™,

if oil with fuel stabilizer is not used.

nRemove the remaining fuel from the fuel lines and carburetor.

CAUTION!

Gasoline stored in the carburetor for extended periods can cause hard starting and could also lead

to increased service and mainte- nance.

1.Prime the primer bulb until no more fuel is passing through.

. Start and run the engine until it stops running.

3.Repeat steps 1 and  until the engine will no longer start.

nRemove the spark plug and pour about 1/4 ounce of 2-cycle mixing oil into the cylinder through the spark plug hole. Slowly pull the recoil start- er 2 or 3 times so oil will evenly coat the interior of the engine. Reinstall the spark plug.

nBefore storing the unit, repair or replace any worn or damaged parts.

nRemove the air cleaner element from the carburetor and clean it thoroughly with soap and water. Let dry and reassemble the element.

nStore the unit in a clean, dust-free area.

Blade Sharpening

When the cutting edges of the blade be- come dull, they can be resharpened with a few strokes of a file.

In order to keep the blade in balance, all cutting edges must be

sharpened equally.

Shindaiwa Tornado® Blade

To sharpen the cutters on a Shindaiwa Tornado Blade, use a 7/3-inch round file. File the leading edge of each tooth to a razor edge. The top plate of each tooth should angle back 30°.

Round

File

30°

Figure 33

WARNING!

Sharpen only the cutting teeth of a blade. DO NOT

alter the contour of the blade in any way.

Multiple-tooth Circular Blade

Use a round file to maintain a radius of

0.04to 0.06" (1 to 1.5 mm) at the base of each tooth. Cutting edges must be offset equally on each side.

Round

File

Figure 34

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Shindaiwa 81646 manual Hour Maintenace, Long Term Storage, Blade Sharpening, Shindaiwa Tornado Blade