Husqvarna 1151438-95 User Manual

Page of 44
GENERAL SAFETY PRECAUTIONS
16 – English
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 servicing dealer.
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.
Needle bearing lubrication
Both versions of sprockets have a needle bearing on the 
drive shaft, which has to be greased regularly (once a week). 
CAUTION! Use only high quality bearing grease or engine 
oil.
See instructions under the heading Maintenance, Needle 
bearing lubrication.
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.
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 
0.16 inch (4 mm) the chain must be replaced.
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.
!
WARNING! Most chain saw accidents 
happen when the chain touches the 
operator.
Wear personal protective equipment. See 
instructions under the heading Personal 
protective equipment.
Do not tackle any job that you feel you are 
not adequately trained for. See instructions 
under the headings Personal protective 
equipment, How to avoid kickback, Cutting 
equipment and General working 
instructions.
Avoid situations where there is a risk of 
kickback. See instructions under the 
heading Machine
′′′′
s safety equipment.
Use the recommended protective 
equipment and check its condition. See 
instructions under the heading General 
working instructions.
Check that all the chain saw safety features 
are working. See instructions under the 
headings General working instructions and 
General safety precautions.