General Maintenance

IMPORTANT!

MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY REPAIR ESTABLISHMENT OR INDIVIDUAL; HOWEVER, WARRANTY REPAIRS MUST BE PERFORMED BY A DEALER OR SERVICE CENTER AUTHORIZED BY SHINDAIWA CORPORATION THE USE OF PARTS THAT ARE NOT EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF A WARRANTY CLAIM.

WARNING!

Before performing any maintenance, re- pair or cleaning work on the unit, make sure the engine and cutting attachment are completely stopped. Disconnect the spark plug wire before performing service or maintenance work.

WARNING!

Non-standard parts may not operate properly with your unit and may cause damage and lead to personal injury.

NOTE:

Using non-standard replacement parts could invalidate your Shindaiwa warranty.

Muffler

This unit must never be operated with a faulty or missing spark arrester or muf- fler. Make sure the muffler is well secured and in good condition. A worn or damaged muffler is a fire hazard and may also cause hearing loss.

Spark Plug

Keep the spark plug and wire connections tight and clean.

Fasteners

Make sure nuts, bolts, and screws (except carburetor adjusting screws) are tight.

Blades

Keep blades sharp and check blade condition frequently. If a blade’s performance changes suddenly, stop the engine and check the blade for cracks or other damage. Replace a damaged blade IMMEDIATELY!

WARNING!

nNever repair a damaged blade by welding, straightening, or by modify- ing its shape. An altered blade may break during operation, resulting in serious personal injury.

nBlades are not interchangeable be- tween Shindaiwa edgers and trimmer/ brushcutter models. Operating any unit with a blade or attachment not approved for that unit can be hazard- ous and may cause serious injury.

Daily Maintenance

Prior to each work day, perform the following:

nRemove dirt or debris from the engine, check the cooling fins and air cleaner for clogging and clean them as necessary.

nCarefully remove any accumulation of dirt or debris from the muffler or the fuel tank. Dirt build-up in these areas could cause engine overheating, induce premature wear, or create a fire hazard.

nCheck for loose or missing screws or components. Make sure the cutting at- tachment is securely fastened.

nCheck the entire unit for leaking fuel or grease.

10-Hour Maintenance

(more frequently in dusty conditions)

1.Remove the air cleaner cover by loosening the two thumbscrews. See Figure 28A.

2.Remove and inspect the pre-filter. If the pre-filter is torn or otherwise damaged, replace it with a new one. See Figure 28B.

3.Clean the pre-filter with soap and water. Let dry before reinstalling.

4.Inspect the air filter element. If the ele- ment is damaged or distorted, replace it with a new one.

5.Tap filter gently on a hard surface to dislodge debris from element or use compressed air from the inside to blow debris out and away from the air filter element.

Unscrew

Fasteners

Figure 28A

IMPORTANT!

Direct the air stream at the inside face of the filter only!

6.Install the filter element, pre-filter and cover in the reverse order of removal.

Pre-Filter

Air-Filter

Element

Figure 28B

CAUTION!

Never operate the unit if the air cleaner assembly is damaged or missing!

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Shindaiwa 81704 manual General Maintenance, Daily Maintenance, Hour Maintenance