Operation Manual

ManualsBrandsStiga ManualsChainsawSP 375Q

The tension is correct when the drive links do not

slip out of the chain guides if you hold the chain in

the middle of the bar (Fig. 5).

• M

achines with standard chain tension

adjuster

– Loosen the cover nuts, using the supplied

wrench (Fig. 4).

– Turn the chain tension adjuster screw (4) to ad-

just the chain tension (Fig. 4).

– Raise the bar and tighten the guard nuts se-

curely using the wrench (Fig. 5).

•

Machines with quick chain tension

adjuster

(SP 375Q, SP 405Q, C 38 T, C 41 T)

– Loosen the handle (11) (Fig. 4A).

– Turn the ring-nut (15) to obtain the desired chain

tension level (Fig. 5A).

– Raise the bar and tighten the handle (11) se-

curely (Fig. 5A).

6. CHECKING THE CHAIN BRAKE

This machine is equipped with a safety brake sys-

tem.

In the event of a kickback while working, following

an irregular contact of the tip of the bar, with a

brusque upward movement that causes the hand

to strike the front guard. In this case, the brake

blocks chain movement and must be released

manually in order to disengage it.

This brake can be operated manually by pushing

the front guard forward. To release the brake, pull

the front guard towards the handgrip until you hear

a click.

To check that the brake works efficiently, proceed

as follows:

– Make sure you are holding the machine firmly

with both hands when you start the engine

– Use the accelerator level to keep the chain mov-

ing, push the brake lever forwards using the

back of you left hand; the chain must stop im-

mediately.

– When the chain has stopped, immediately re-

lease the accelerator lever.

– Release the brake.

Do not use the machine if

the chain brake does not function correctly

and have it inspected by your dealer.

WARNING!

Always close the fuel tank

cap firmly.

Immediately clean all tra-

ces of fuel which may have dripped on the

machine or the ground and do not start the en-

gine until the petrol fumes have dissipated.

3. CHAIN LUBRICANT

Only use special oil for chain

saws or adhesive oil for chain saws. Do not use oil

containing impurities so as not to block the oil filter

and to prevent irreparable damage to the oil pump.

The special oil for lubricat-

ing the chain is biodegradable. Use of a mineral oil

or engine oil causes serious damage to the envi-

ronment.

It is essential that you use good quality oil to lubri-

cate the cutting parts effectively. Used or poor

quality oil does not guarantee good lubrication and

reduces the duration of the chain and bar.

It is always worth topping up the oil tank complete-

ly (using a funnel) every time you refuel. Since the

oil tank capacity is enough to guarantee that the

fuel runs out first, you will avoid the risk of operat-

ing the machine without lubricant.

4. CHECKING THE MACHINE

Before starting work please:

– fill the relevant tanks with fuel and oil;

– check that all the screws on the machine and the

bar are tightly fastened;

– check that the chain is sharp and there are no

signs of any damage;

– check that the air filter is clean;

– check that handgrips and protection devices are

clean and dry, correctly mounted and well fas-

tened to the machine;

– check that the handgrips are well fastened;

– check that the chain brake is working efficiently;

– check the chain tension;

– checking functional of the clutch: Before each

use, confirm that there is no chain movement

when the chain saw running at idling speed.

5. CHECKING THE CHAIN TENSION

Perform all operations

with the engine off.

WARNING!

IMPORTANT

PREPARING TO WORK 9