Husqvarna 545 Mark II Manuel D'utilisation page 30

4. Tighten the saw chain until it is tight against the
guide bar but still can move easily.
5. Tighten the bar nuts using the wrench and lift the
front of the guide bar at the same time.
6. Make sure you can pull the saw chain around freely
by hand and that it does not hang from the guide
bar.
Note:
Product overview on page 2 for the
Refer to
position of the chain tensioning screw on your product.
To do a check of the saw chain
lubrication
1. Start the product and let it operate at ¾ throttle. Hold
the bar approximately 20 cm/8 in above a surface of
light color.
2. If the saw chain lubrication is correct, you see a clear
line of oil on the surface after 1 minute.
3. If the saw chain lubrication does not operate
correctly, do a check of the guide bar. Refer to
To do a check of the guide bar on page 31 for
instructions. Speak to your servicing dealer if the
maintenance steps does not help.
To do a check of the rim sprocket
The clutch drum has a rim sprocket that can be
replaced.
30
1. Make sure that the rim sprocket is not worn. Replace
if necessary.
2. Replace the rim sprocket each time you replace the
saw chain.
To lubricate the needle bearing
1. Pull the front hand guard rearward to disengage the
chain brake.
2. Loosen the bar nuts and remove the clutch cover.
Note:
Some models have only one bar nut.
3. Put the product on a stable surface with the clutch
drum up.
4. Lubricate the needle bearing with a grease gun. Use
engine oil or a bearing grease of high quality.
To examine the cutting equipment
1. Make sure that there are no cracks in rivets and
links and that no rivets are loose. Replace if it is
necessary.
544 - 011 - 09.11.2023