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 PERFOR- MANCE AND DURABILITY TO AUTHO- RIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF A WARRANTY CLAIM.

WARNING!

Non-standard accessories, cutting attachments, or replace- ment parts may not operate prop- erly with your unit and may cause damage and lead to personal injury.

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.

WARNING!

Before performing any main- tenance, repair or cleaning work on the unit, make sure the engine is completely stopped. Disconnect the spark plug wire before performing service or maintenance work.

Spark Plug

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

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 lubri- cated. Without the heavy duty 2-stage air filter equipped on all H4 engines, dust and dirt could also move through the engine, decreasing engine life, increasing valve wear and the need for more frequent valve adjustments. To keep your H4 engine strong and reliable, Shindaiwa recommends that you check and service the air filter as instructed in the 10-Hour Maintenance section that follows.

NOTE:

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

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 per- formance changes suddenly, stop the engine and check the blade for cracks or other damage. Replace a damaged blade IMMEDIATELY!

WARNING!

■■Never repair a damaged blade by welding, straightening, or by modifying its shape. An altered blade may break during opera- tion, resulting in serious per- sonal injury.

■■Blades are not interchangeable between Shindaiwa edgers and unit/brushcutter models. Oper- ating any unit with a blade or attachment not approved for the unit can be hazardous and may cause serious 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.

■■Clean any debris or dirt from the cutting attachment. ■■Check the entire unit for leaking fuel or grease.

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

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

■■Carefully remove any accumulations of dirt or debris from the muffler 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.

	Keep cooling	Cooling
	fins clean
		fins

Remove all dirt and debris from the engine and check the cooling fins.

Air

intake