Patriot Products 1900 Chain Tension, Checking the tension, Adjusting the tension

Cutters Depth Gauge

Drive Links

Place chain onto the sprocket

SPlace chain over and behind clutch, fitting the drive links in the clutch drum sprocket.

SFit bottom of drive links between the teeth

in the sprocket in the nose of the guide bar.

SFit chain drive links into bar groove.

SPull guide bar forward until chain is snug in guide bar groove. Ensure all drive links are in the bar groove.

SNow, install chain brake making sure the adjusting pin is positioned in the lower hole in the guide bar. Remember this pin moves the bar forward and backward as the screw is turned.

SInstall chain brake nuts and finger tighten only. Once the chain is tensioned, you will need to tighten chain brake nuts.

CHAIN TENSION

(Including units with chain already installed) NOTE: When adjusting chain tension, make sure the chain brake nuts are finger tight only. Attempting to tension the chain when the chain brake nuts are tight can cause damage.

Checking the tension:

Use the screwdriver end of the chain adjust- ment tool (bar tool) to move the chain around the bar. If the chain does not rotate, it is too tight. If too loose, the chain will sag below the bar.

Chain Brake Nuts	Chain Adjustment
	Tool (Bar Tool)

Adjusting the tension:

Chain tension is very important. Chain stretches during use. This is especially true during the first few times you use your saw. Always check chain tension each time you use and refuel your saw.

You can adjust the chain tension by loosen- ing the chain brake nuts and turning the ad- justing screw 1/4 of a turn while lifting up on the bar.

SIf chain is too tight, turn adjusting screw 1/4 turn counterclockwise.

SIf chain is too loose, turn adjusting screw 1/4 turn clockwise.

Adjusting

Screw

Chain Brake Nuts Guide Bar

Adjusting Screw -- 1/4 Turn

S Lift up the tip of the bar and tighten the chain brake nuts with the bar tool. Torque to 10--15 ft/lbs.

SRecheck chain tension.

Chain Brake

Nuts

WARNING: If the saw is operated with a loose chain, the chain could jump off the guide bar and result in serious injury.

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