Chain Tension - U.S.SAWS ACH GB Series Operating Manual

AddITIONAl INfORmATION
pletely out of the bar. Wood cutting chainsaws use oil to lubricate
the chain. The oil makes the chain very slippery and allows the
drive links to fully nest between the teeth of the drive sprocket.
Concrete and ductile iron cutting chain saws operate with looser chain tension than wood chain saws.
Concrete cutting chainsaws require water for cooling and flushing
the cut. Water is not as good as oil as a lubricant. Also, there are
It is common, especially on gas powered, concrete cutting chain saws to have the drive links hang
concrete particles mixed in with the water. As a result, sometimes
completely out of the bar. Wood cutting chain saws use oil to lubricate the chain. The oil makes the
the drive links do not nest properly on the drive sprocket. When
chain very slippery and allows the drive links to fully nest between the teeth of the drive sprocket.
this happens, the chain acts like it got tighter. There seems to be
Concrete and ductile iron cutting chain saws require water for cooling and flushing the cut. Water is
tight spots and loose spots as you pull the chain around the bar.
not as good as oil as a lubricant. Also, there is debris mixed in with the water. As a result, sometimes
If you tension when the chain is in one of the loose spots, it will
the drive links do not nest properly on the drive sprocket. When this happens, the chain acts like it
be too tight at some point in it's rotation around the bar. Rotating
the chain completely around the bar by hand will let you know you
got tighter. There seems to be tight spots and loose spots as you pull the chain around the bar. If you
have the chain properly tensioned.
tension when the chain is in one of the loose spots, it will be too tight at some point in it's rotation
around the bar. Rotating the chain completely around the bar by hand will let you know you have the
AddITIONAl TENSIONING TIPS:
chain properly tensioned.
1. To reduce chain stretch and tensioning downtime, a minimum water supply should be used:
- For ductile applications, a pump sprayer is sufficient.
- For concrete applications us 20 psi or greater water pressure.
2. Oil the chain at the end of the day to prevent rust but be careful not to over tension in this condition.
3. When pulling the chain around the bar by hand, be careful not to touch the bar with thumb or
forefinger. The bar rails can be very sharp. Grab only the diamond segments to pull the chain.
The bar rails can be very sharp. Grab only the diamond segments to pull the chain.
4. Always turn the engine off before tensioning the chain.

CHAIN TENSION

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AddITIONAl INfORmATION
Air Powered Chain Saw
correct chain tension
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Additional Tips
correct chain tension
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