Shindaiwa X7502891100 manual Maintenance

Maintenance

IMPORTANT!

MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY REPAIR ESTAB-

LISHMENT OR INDIVIDUAL; HOW-

EVER, WARRANTY REPAIRS MUST BE PERFORMED BY A DEALER OR SERVICE CENTER AUTHORIZED BY ECHO, INC. THE USE OF PARTS THAT ARE NOT EQUIVALENT IN PER- FORMANCE 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, repair, 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.

Muffler

This unit must never be operated with a faulty or missing spark arrester or

muffler. 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.

Air Filter

The H4 engine that powers your Shindaiwa model is a hybrid 4-stroke engine. As a hybrid, the engine is lubricated by oil mixed with the gaso- line and air from the carburetor that moves through and around the inter- nal parts of the engine in a similar way that a 2-stroke engine is lubricated. Without the heavy duty 2-stage air fil- ter equipped on all H4 engines, dust and dirt could also move through the engine, decreasing engine life, increas- ing valve wear and the need for more frequent valve adjustments. To keep your H4 engine strong and reliable, Shindaiwa recommends that you check

WARNING!

Non-standard accessories, cutting attachment, or replacement parts may not operate properly with your unit and may cause damage and lead to personal injury.

Daily Maintenance

Prior to each work day, perform the following:

■■Remove all dirt and debris from the engine, check the cooling fins and air cleaner for clogging, and clean as necessary.

■■Check the entire unit for leaking fuel or grease.

Spark Plug

Keep the spark plug and wire connec- tions tight and clean.

Fasteners

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

■■Carefully remove any accumula- tions of dirt or debris from the muf- fler and fuel tank. Check cooling air intake area at base of crankcase. Remove all debris. Dirt build-up

in these areas can lead to engine overheating, fire, or premature wear.

■■Clean any debris or dirt from the sweeper attachment.

and service the air filter as instructed in the 10-Hour Maintenance section that follows

■■Check for loose or missing screws or components. Make sure the attachment is securely fastened.

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

10-Hour Maintenance

(more frequently in dusty conditions)

1.Remove the air cleaner cover by loosening the thumbscrews and lifting.

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

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

4.Inspect the air filter element. If the element 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

IMPORTANT!

Direct the air stream at the inside face

of the filter only!

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

Pre-filter

Air filter element

CAUTION!

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

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