Hitachi CG 22EAS(SL) Manual De Usuario

12

 

A cutting attachment can injure while it continues to spin after 

the engine is stopped or power control is released. When the 

unit is turned off , make sure the cutting attachment has stopped 

before the unit is set down.

Automatically feeds more nylon cutting line when it is tapped at low 

rpm (not greater than 4500 rpm).

MAINTENANCE, REPLACEMENT OR REPAIR OF THE EMISSION 

CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED 

BY ANY NON-ROAD ENGINE REPAIR ESTABLISHMENT OR 

INDIVIDUAL.

○  The cutting attachment may be spinning during carburetor 

adjustments.

○  Never start the engine without the complete clutch cover and 

tube assembled! Otherwise the clutch can come loose and 

cause personal injuries.

In the carburetor, fuel is mixed with air. When the engine is test 

run at the factory, the carburetor is basically adjusted. A further 

adjustment may be required, according to climate and altitude. The 

carburetor has one adjustment possibility:

Check that the air fi lter is clean. When the idle speed is correct, the 

cutting attachment will not rotate. If adjustment is required, close 

(clockwise) the T-screw, with the engine running, until the cutting 

attachment starts to rotate. Open (counter-clockwise) the screw 

until the cutting attachment stops. You have reached the correct idle 

speed when the engine runs smoothly in all positions well below the 

rpm when the cutting attachment starts to rotate.

If the cutting attachment still rotates after idle speed adjustment, 

contact Hitachi Authorized Service Centers.

○  Standard Idle rpm is 2800-3200 rpm.

 

When the engine is idling the cutting attachment must under no 

circumstances rotate.

The air fi lter must be cleaned from dust and dirt in order to avoid:

○ Carburetor 

malfunctions

○ Starting 

problems

○  Engine power reduction

○  Unnecessary wear on the engine parts

○  Abnormal fuel consumption

Clean the air fi lter daily or more often if working in exceptionally 

dusty areas.

28

Open the air fi lter cover and the fi lter (28). Rinse it in warm soap 

suds. Check that the fi lter is dry before reassembly. An air fi lter 

that has been used for some time cannot be cleaned completely. 

Therefore, it must regularly be replaced with a new one. A damaged 

fi lter must always be replaced.

Drain all fuel from fuel tank and pull fuel fi lter line from tank. Pull 

fi lter element out of holder assembly and rinse element in warm 

water with detergent.

Rinse thoroughly until all traces of detergent are eliminated. 

Squeeze, do not wring, away excess water and allow element to air 

dry.

 

If element is hard due to excessive dirt buildup, replace it.

The spark plug condition is infl uenced by:

○  An incorrect carburetor setting

○  Wrong fuel mixture (too much oil in the gasoline)

○  A dirty air fi lter

○  Hard running conditions (such as cold weather)

These factors cause deposits on the spark plug electrodes, which 

may result in malfunction and starting diffi  culties. If the engine 

is  low  on  power,  diffi  cult  to  start  or  runs  poorly  at  idling  speed, 

always check the spark plug fi rst. If the spark plug is dirty, clean it 

and check the electrode gap. Re-adjust if necessary. The correct 

gap is 0.6 mm. The spark plug should be replaced after about 100 

operation hours or earlier if the electrodes are badly eroded.

000Book_CG22EAS_Eng.indb   12

000Book_CG22EAS_Eng.indb   12

2012/07/16   15:22:41

2012/07/16   15:22:41