User manual

ManualsBrandsALPINA ManualsTree & Shrub CarePetrol Chainsaw

14 MAINTENANCE AND STORAGE

When performance is poor, first check that the

chain runs smoothly and the bar rails are not dis-

torted, then contact your dealer to check the

carburetion and the engine.

• Tuning minimum speed

The chain must not move

when the engine is running idle. If the chain

moves when the engine is running idle, con-

tact your dealer to correctly regulate the

engine.

SHARPENING THE CHAIN

To ensure that the chain-

saw works safely and efficiently, it is essential

that the cutting components are well-sharp-

ened.

Sharpening is necessary when:

• The sawdust looks like dust.

• Cutting becomes more difficult.

• The cut is not straight.

• Vibrations increase.

• Fuel consumption increases.

If the chain is not suffi-

ciently sharpened, the kick-back’s risk

increases.

A specialized centre will sharpen the chain using

the right tools to ensure minimum removal of

WARNING!

material and even sharpness on all the cutting

edges.

If you sharpen the chain yourself, use special

round-section files with the right diameter

depending on the type of chain (see “Chain

Maintenance Table”). You need a certain amount

of skill and experience to avoid damaging the

cutting edges.

Sharpen the chain as follows (Fig. 24):

– Switch off the engine, release the chain brake

and secure the bar with the chain in a vice so

that the chain can run smoothly.

– Tighten the chain if it is loose.

– Mount the file in the guide and then insert it in

the tooth at a constant angle from the cutting

edge.

– Sharpen in a forward motion a few times and

repeat this on all the cutting edges facing the

same way (right or left).

– Turn the bar over in the vice and repeat on all

the other cutting edges.

– Check that the limiter tooth does not stick out

further than the inspection instrument and file

any projecting parts with a flat file, rounding

off the edge.

– After sharpening, remove all traces of filing

Chain maintenance table

The specifications of the chain and the bar homologated for this machine

are shown in the “EC Conformity Statement” provided. Do not use other types of chains or bars

for safety reasons.

The table gives the sharpening data for different types of chains, but this does not mean you

can use different chains from the homologated one.

WARNING!

Chain pitch Limiter tooth level (a) File diameter (d)

inches mm inches mm inches mm

3/8 Mini 9.32 0.018 0.45 5/32 4.0

0.325 8.25 0.026 0.65 3/16 4.8

3/8 9.32 0.026 0.65 13/64 5.2

0.404 10.26 0.031 0.80 7/32 5.6