Husqvarna 236E 用户手册

English – 13

1153140-26 Rev. 2 2010-02-11

• Check that the bar tip sprocket turns freely and that the 

lubricating hole in the tip sprocket is not blocked. Clean 
and lubricate if necessary.

If the chain lubrication system is still not working after 
carrying out the above checks and associated measures 
you should contact your service agent.

The clutch drum is fitted with a Spur sprocket (the chain 
sprocket is welded on the drum).

Regularly check the degree of wear on the drive sprocket. 
Replace if wear is excessive. Replace the drive sprocket 
whenever you replace the chain.

Check the chain daily for:
• Visible cracks in rivets and links.
• Whether the chain is stiff.
• Whether rivets and links are badly worn.

Replace the saw chain if it exhibits any of the points above.

We recommend you compare the existing chain with a new 
chain to decide how badly the existing chain is worn.

When the length of the cutting teeth has worn down to only 
4 mm the chain must be replaced.

Check regularly:

• Whether there are burrs on the edges of the bar. 

Remove these with a file if necessary. (15)

• Whether the groove in the bar has become badly worn. 

Replace the bar if necessary. (16)

• Whether the tip of the bar is uneven or badly worn. If a 

hollow forms on the underside of the bar tip this is due 
to running with a slack chain.

• To prolong the life of the bar you should turn it over daily.

Check that the chain brake is in disengaged position by 
moving the front hand guard towards the front handle.

Remove the knob and remove the clutch cover (chain 
brake). Take off the transportation ring (A). (17)

Fit the bar over the bar bolts. Place the bar in its rearmost 
position. Place the chain over the drive sprocket locate it in 
the groove on the bar. Begin on the top edge of the bar. 
(18)

Make sure that the edges of the cutting links are facing 
forward on the top edge of the bar.

Fit the clutch cover (chain brake) and locate the chain 
adjuster pin in the cut-out in the bar. Check that the drive 
links of the chain fit correctly on the drive sprocket and that 
the chain is in the groove on the bar. (19)

Tension the chain by turning the wheel down (+). The chain 
should be tensioned until it does not sag from the 
underside of the bar. (12)

The chain is correctly tensioned when it does not sag from 
the underside of the bar, but can still be turned easily by 
hand. Hold up the bar tip and tighten the bar knob by 
turning the knob clockwise. (13)

When fitting a new chain, the chain tension has to be 
checked frequently until the chain is run-in. Check the 
chain tension regularly. A correctly tensioned chain 
ensures good cutting performance and long life. (20)

To fit a spike bumper – contact your service agent.

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