6
ASSEMBLY OF CHAIN SAW
CAUTION: The saw chain has very sharp edges. Always use safety gloves when assembling
the chain.
Your chain saw package contains the following items as illustrated in figure 1.
Assemble the guide bar and the saw chain on the power unit as follows:
1. Ensure the spark plug wire is disconnected and keep it away from spark plug.
2. Place the chain saw on a stable surface.
3. Pull the guard towards the front handle to check that the chain brake is not on (Fig.2).
4. Loosen the nuts (Fig.3a) and remove the chain cover (Fig.3b).
5. Install the included claw to the power unit (Fig.4) if it is not pre-fitted.
6. Gear the chain to the sprocket (Fig.5) and, while fitting the saw chain around the guide bar,
mount the guide bar to the power unit (Fig.6). NOTE: Pay attention to the correct direction of
the saw chain. The cutting teeth on the upper side of the bar must point in the forward
direction (Fig.7)
7. Adjust the position of chain tensioner screw on the chain cover to the lower hole of guide
bar (Fig.3b) If necessary, adjust the tensioner screw until the tensioner bolt is seated in the
lower hole in the bar.
8. Fit the chain cover to the power unit and fasten the nuts (Fig.3a) to finger tightness.
9. Check that all chain links ar
e seated correctly in the bar’s groove and that the chain is fitted
around the driving sprocket correctly.
10. While holding up the chain bar, adjust the chain tension by turning the tensioner screw until
the chain links just touch the bottom side of the bar rail (Fig.8). The chain should be
tensioned such that it can be lifted about 3 mm in the middle of the bar (Fig.8).
11. Tighten the chain cover nuts securely (12-15N.m). Check the chain for smooth rotation and
proper tension while moving it by hand.
12. If necessary, readjust the tension of the chain by first loosening the chain cover nuts slightly,
then again adjusting the chain tension by turning the tensioner screw. Securely retighten the
chain cover nuts.
NOTE:
A new chain will expand its length in the beginning of use. Check and readjust the tension
frequently as a loose chain can easily derail or cause rapid wear of itself and the guide bar.
The chain tension has a significant effect on the life of the chain saw, and must therefore be
checked regularly. When the chain warms up to operating temperature it will expand a little and
might need to be re-tensioned.
1
2
3
4
6
7
1.
Engine
2.
Bar protector
3.
Chain bar
4.
Saw chain
5.
Chain file
6.
Universal tool
7.
Screwdriver for carburettor
adjustment
Figure 1
