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A properly tensioned chain will optimize cutting performance. The tensioning rule of thumb for
a concrete cutting chain saw is that a properly tensioned diamond chain must not be bowstring
tight and can be pulled freely around the guide bar by hand easily without binding.
PROPER CHAIN TENSION
Proper Chain Tension
If the chain is too loose, it could come off the bar, or it will allow the drive
If the chain is too loose, it could come off the bar, or it will
sprocket to spin without turning the chain, which can chew up the chain drive
allow the drive sprocket spin without turning the chain
links. If the chain is too tight, a lot of the saw's power goes into turning the
which can damage the chain drivel inks. If the chain is
chain rather than into the cut. In extreme over-tightened cases, the saw may not
too tight, much of the saw's power goes into turning the
be able to turn the chain at all. In addition, damage can occur to the bar nose
chain rather than into the cut. In extreme over-tightened
and premature stretch may occur.
cases, the saw may not be able to turn the chain at
all. In addition, damage can occur to the bar nose and
HOW TO CHECK
premature chain stretch may occur.
Before cutting, check for proper tension by pulling the chain around the bar
by hand. If you cannot easily pull by hand, the chain is too tight and needs to
be loosened.
Before cutting, check for proper tension by pulling the
chain around the bar by hand. If you cannon easily pull by
hand, the chain is too tight and needs to be loosened.
WHEN TO TENSION
All chains have a tendency to stretch when used. Diamond chains stretch
All chains have a tendency to stretch when used.
more than wood cutting chains because of the abrasive materials they are
cutting. When a chain stretches to a point where the drive links are hanging
Diamond chains stretch more than wood cutting chains
approximately 1/2 in- 3/4 in (12 - 18 mm)below the bar, it's time to tension
because of the abrasive materials they are cutting. When
the chain.
a chain stretches to a point where the drive links are
hanging approximately 1/2 inch to 3/4 inch below the
bar, it's time to tension the chain.
HOW TO TENSION
To tension the chain, first loosen the side cover nuts, then while holding the nose of
To tension the chain, first loosen the side cover nuts, then
the bar up, use a screw driver to turn the tensioning screw clockwise until the chain
drive links hanging below the bar are just beginning to enter the bar groove. Continue
while holding the nose of the bar up, use a screwdriver to
to hold up on the nose of the bar and firmly tighten the side cover nuts, (20 ft-lbs,
turn the tensioning screw clockwise until the chain drive
27 Nm). And remember, it's the side cover nuts that hold the bar in position.
links hanging below the bar are just beginning to enter
the bar groove. Continue to hold up on the nose of the bar
HOW TO PREVENT CHAIN TENSIONER BREAKAGE
and firmly tighten the side cover nuts. And remember, it's
Do not attempt to adjust the tensioner without first loosening the side cover nuts. Do
the side cover nuts that hold the bar in position.
not use the saw without making sure the side cover nuts are tight. If the side cover nuts
are not tight, the bar can slip backwards during cutting and break the tensioner pin.
How to Prevent Chain Tensioner Breakage
Do not attempt to adjust the tensioner without first
loosening the side cover nuts. Do not use the saw without
making sure the side cover nuts are tight. If side cover
nuts are not tight, the bar can slip backwards during
cutting and break the tensioner pin.
Chain Tension
I M P O RTA N T
I M P O RTA N T
I M P O RTA N T
I M P O RTA N T
I M P O RTA N T
How To Check
When to Tension
How to Tension
3317 W. Warner Avenue
3317 W. Warner Avenue
Santa Ana, CA 92704
Santa Ana, CA 92704
Local 714 434 7297
Local 714 434 7297
Fax 714 434 7299
Fax 714 434 7299
3317 W. Warner Avenue
Santa Ana, CA 92704
Local 714 434 7297
Fax 714 434 7299
3317 W. Warner Avenue
Air Powered Chain Saw
Santa Ana, CA 92704
Local 714 434 7297
chain
too loose
chain
too loose
chain
too loose
chain
too loose
11 High Street
11 High Street
8004B E Broadway Ave
Suffield, CT 06078
Suffield, CT 06078
Tampa, FL 33619
Local 860 668 2402
Local 860 668 2402
Local 813 621 8015
Fax 860 668 2404
Fax 860 668 2404
Fax 813 621 7125
11 High Street
8004B E Broadway Ave
Suffield, CT 06078
Tampa, FL 33619
Local 860 668 2402
Local 813 621 8015
Fax 860 668 2404
Fax 813 621 7125
11 High Street
8004B E Broadway Ave
Suffield, CT 06078
Tampa, FL 33619
Local 860 668 2402
Local 813 621 8015
correct chain tension
correct chain tension
correct chain tension
correct chain tension
chain
chain
too tight
too loose
chain
too tight
correct chain tension
chain
too tight
chain
too tight
chain
too tight
8004B E Broadway Ave
Tampa, FL 33619
Local 813 621 8015
Fax 813 621 7125
01312013
01312013
01312013
8
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