Husqvarna 353 E-TECH Owners Manual - Page 16

Chain drive sprocket, Needle bearing lubrication, Checking wear on cutting equipment

Get Husqvarna 353 E-TECH PDF manuals and user guides View all Husqvarna 353 E-TECH manuals
Add to My Manuals
Save this manual to your list of manuals

Page 16 highlights

GENERAL SAFETY PRECAUTIONS • 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. 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 5/32 inch (4 mm) the chain must be replaced. Bar 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 Check regularly: • Whether there are burrs on the edges of the bar. Remove these with a file if necessary. 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) • 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. 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 • To prolong the life of the bar you should turn it over daily. 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. 16 - English 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.

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 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 5/32 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.