Husqvarna 372XP User Manual

Page of 40
14 – 
English
SAFETY INSTRUCTIONS
Lubricating the bar tip sprocket
Lubricate the bar tip sprocket each time you refuel. Use the 
special grease gun and a good quality bearing grease.
Needle bearing lubrication
The clutch drum is fitted with one of the following drive 
sprockets:
A   Spur sprocket (the chain sprocket is welded on the drum)
B   Rim sprocket (replaceable)
Both versions have a needle bearing on the drive shaft, which 
has to be greased regularly (once a week). CAUTION! Use a 
high-quality bearing grease or engine oil.
Checking wear on cutting equipment
Check the chain daily for:
Visible cracks in rivets and links.
Whether the chain is stiff.
Whether rivets and links are badly worn.
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.
Chain drive sprocket
The clutch drum is fitted with one of the following drive 
sprockets:
A   Spur sprocket (the chain sprocket is welded on the drum)
B   Rim sprocket (replaceable)
Regularly check the degree of wear on the drive sprocket. 
Replace if wear is excessive. Replace the drive sprocket 
whenever you replace the chain.
Bar
Check regularly:
Whether there are burrs on the edges of the bar. Remove 
these with a file if necessary.
Whether the groove in the bar has become badly worn. 
Replace the bar if necessary.
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.