Sovereign CS4100A-5, Instruction Manual

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3.  Fit the chain around the bar ensuring that the direction of the 

chain is as depicted in the picture on the bar. Fit the chain on 

the sprocket. Adjust the position of chain tensioner so the 

tensioner pin locates in the hole (A) on the bar.

Direction of chain

4.  Adjust the tension to ensure that there is not too much slack 

in the chain. Make sure the tensioner pin (B) is located in the 

assembly hole (A) on the bar. Pay attention to the correct 

direction of the saw chain. Compare with the picture near the 

chain sprocket and the picture on the bar.

A

B

5.  Fit the chain cover to the power unit and fasten the nuts to 

the chainsaw, ensure these are fastened as tight as possible 

using your fingers only. 

6.  While holding up the tip of the bar, adjust the chain tension 

by turning the adjustment wheel until the chain engages 

in the bar channel. When tensioned correctly, it should be 

possible to pull one full chain link free of the bar channel with 

ease. 

7.  Tighten the wheel as secure as you can using your fingers. 

Then check the chain for smooth rotation and proper tension 

while moving it by hand. If necessary, loosen the chain cover. 

8.  Tighten the tensioner wheel.

NOTE

: A new chain will expand its length during the first period 

of use. Check and re-adjust the tension frequently, as a loose 

chain can easily derail or cause rapid wear of itself and the chain 

bar.

CAUTION! 

If the saw chain is TOO LOOSE or TOO TIGHT 

the V-drive wheel, chain bar, chain and crank shaft bear-

ing will suffer premature wear. Below Fig. shows the cor-

rect tension A (when cold) and tension B (when warm). 

Fig. C shows a chain that is too loose.