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13
Chain Brake
Chain brakes are designed to quickly stop the chain rotating. When the chain brake lever/hand guard is pushed towards the
bar, the chain should stop immediately. A chain brake does not prevent kick-back. It only lowers the risk of injury should
the chain bar contact the operator’s body during a kick-back event. The chain brake should be tested before each use for
correct operation in both the run and brake positions.
Assembly
WARNING
If any parts are damaged or missing do not operate this product until the parts are replaced. Failure to heed this warning
could result in serious personal injury.
Assembling Saw Chain And Guide Bar
• Make sure to remove the battery pack from the unit. Wear protective gloves. Page 24, figure 1.
• Unscrew the chain tensioner knob and remove the sprocket cover. Page 24, figure 2.
• The saw chain should face in the direction of chain rotation. If they face backwards, turn the loop over. Refer to page
22, figure 2.
• Place the chain drive links into the bar groove.
• Position the chain so there is a loop at the back of the bar. Page 24, figure 3.
• Hold the chain in position on the bar and place the loop around the drive sprocket. Lower the bar so that the bolt goes
through the hole in the attached chain tension assembly. You may need to rotate this assembly so the bolt and hole
align. You may rotate this assembly again to apply some tension to the chain which will help keep it in place.
• Replace the sprocket cover and turn the chain tensioner knob until nearly tight, turn the chain tension adjustment ring
until the saw chain is properly tensioned. The guide bar must then be pushed upwards, check chain tension again, do
not tension the chain too tight.
• After the chain is well-tensioned, tighten the knob again.
Adjusting The Chain Tension
• Remove battery. Page 25, figure 1.
• Loosen the chain tensioner knob slightly by turning it counterclockwise. Page 25, figure 2.
• To increase the chain tension, turn the chain tensioner adjustment ring clockwise and check the chain tension
frequently. To reduce the chain tension, turn the chain tensioner adjustment ring counterclockwise and check the chain
tension frequently. Page 25, figure 3.
• The chain tension is correct when the gap between the cutter in the chain and the bar is between 3 mm - 4 mm. Pull
the chain in the middle of the lower side of the bar downwards (away from the bar) and measure the distance between
the bar and the chain cutters. Page 25, figure 3.
• Tighten the chain tensioner knob by turning it clockwise. Page 25, figure 4.
SAFETY RULES & PRECAUTIONS
Содержание BRU36v9201
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Страница 25: ...25 KNOW YOUR PRODUCT 3 4 mm 3 4 255 1 2 2 1 1 ADJUSTING THE CHAIN TENSION ...
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Страница 29: ...29 NOTES ...
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