Shindaiwa X7502825900 用户手册

16

Remove all dirt and debris from the 

 

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engine, check the cooling fins and 

air cleaner for clogging, and clean 

as necessary.

Carefully remove any accumulations 

 

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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 overheat-

ing, fire, or premature wear.

Clean any debris or dirt from the 

 

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cutting attachment.

Check for loose or missing screws 

 

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or components. Make sure the cut-

ter attachment is securely fastened.

Cooling 

fins

Air 

intake

Cooling 

fins

WARNING!
Always wear gloves 

when working around the cutter 

assembly.

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 perform-

ing service or maintenance.

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.

MAINTENANCE, REPLACEMENT 

OR REPAIR OF EMISSION CON-

TROL DEVICES AND SYSTEMS 

MAY BE PERFORMED BY ANY 

REPAIR ESTABLISHMENT OR INDI-

VIDUAL; HOWEVER, WARRANTY 

REPAIRS MUST BE PERFORMED 

BY A DEALER OR SERVICE CEN-

TER AUTHORIZED BY ECHO, INC. 

THE USE OF PARTS THAT ARE NOT 

EQUIVALENT IN PERFORMANCE 

AND DURABILITY TO AUTHORIZED 

PARTS MAY IMPAIR THE EFFECTIVE-

NESS OF THE EMISSION CONTROL 

SYSTEM AND MAY HAVE A BEARING 

ON THE OUTCOME OF A WARRANTY 

CLAIM.

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.

Keep the spark plug and wire connec-

tions tight and clean.

Make sure nuts, bolts, and screws 

(except carburetor adjusting screws) 

are tight.

Using non-standard replacement 

parts could invalidate your Shindaiwa 

warranty.

The H4 engine that powers your 

Shindaiwa model is a hybrid 4-stroke 

engine. As a hybrid, the engine is lubri-

cated by oil mixed with the gasoline 

and air from the carburetor that moves 

through and around the internal parts 

of the engine in a similar way that a 

2-stroke engine is lubricated. 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 adjust-

ments. To keep your H4 engine strong 

and reliable, Shindaiwa recommends 

that you check and service the air fil-

ter as instructed in the 10-Hour Mainte-

nance section that follows.

Check the entire unit for leaking fuel 

 

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or grease.

Make sure nuts, bolts, and screws 

 

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(except carburetor idle speed 

adjusting screws) are tight.