Tensioning The Saw Chain - Pattfield Ergo Tools PE-EAS 7520 Handbuch

5.2 Assembly of the cutter rail and the saw chain
•
Undo the fixing screw of the chain wheel cover (Fig. 3).
•
Take off the chain wheel.
•
Lay the chain as shown in the groove which runs around the cutter
rail (Fig. 4/item A).
•
Insert the cutter rail and chain as shown in the mounting in the
chainsaw (Fig. 5). At the same time guide the chain around the
chain wheel (Fig. 5/Item B).
•
Attach the chain wheel cover and fasten it by hand with the fixing
screw (Fig. 6/Item C).
Important! Do not fully tighten the fi xing screw until after adjusting
the chain tension (refer to point 5.3).

5.3 Tensioning the saw chain

Warning! Always disconnect the mains plug before performing any
checks or adjustments. Always wear protective gloves when working
on the chainsaw to protect yourself against injury.
•
Undo the fixing screw of the chain wheel cover a few turns (Fig. 3).
•
Adjust the chain tension with the chain tensioning screw (Fig. 7/
Item D). Turning the screw clockwise increases the tension, tur-
ning it counter-clockwise decreases the chain tension. The saw
chain is correctly tensioned if it can be lifted around 2 mm in the
middle of the cutter rail (Fig. 8).
•
Tighten the fixing screw (C) of the chain wheel cover (Fig. 6).
Important! All of the chain links must lie properly in the guide groove
of the cutter rail.
Notes on tensioning the chain:
The saw chain must be properly tensioned to ensure safe operation.
You can tell that the chain tension is perfect if the saw chain can be
lifted by around 2 mm in the middle of the cutter rail. As the saw chain
heats up during cutting and thus changes in length, check the chain
tension no less than every 10 minutes and adjust it again as required.
This applies in particular to new saw chains. When you have fi nished
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