Alpina 3700 Manuel D'utilisation page 37

MAINTENANCE AND STORAGE
and dust and lubricate the chain in an oil bath.
Replace the chain whenever:
– The length of the cutting edges reduces to 5
mm or less;
– There is too much play between the links and
the rivets.
BAR MAINTENANCE (Fig. 25)
To avoid asymmetrical wear on the bar, make
sure it is turned over periodically.
To keep the bar in perfect working order, pro-
ceed as follows:
– grease the bearings on the nose sprocket (if
present) with the syringe;
– Clean the bar groove with the scraper (not
included);
– clean the lubrication holes;
– with a flat file, remove burr from the edges and
level off the guides.
Replace the bar whenever:
– the groove is not as deep as the height of the
drive links (which must never touch the bot-
tom);
– the inside of the guide is worn enough to
make the chain lean to one side.
EXTRAORDINARY MAINTENANCE
All maintenance operations not foreseen in this
manual must be performed exclusively by your
dealer.
All and any operations performed in unautho-
rised centres or by unqualified persons will total-
ly invalidate the warranty.
STORAGE
After every work stint, clean the machine thor-
oughly to remove all dust and debris, and repair
or replace any faulty parts.
The machine must be stored in a dry place away
from the elements and with the bar cover cor-
rectly fitted.
LONG PERIODS OF DISUSE
IMPORTANT
the machine for a period of more than 2-3
months, we recommend you do a few things
before putting it away. This will make it easier
when you want to use the machine again and will
also prevent permanent damage to the engine.
• Storage
Before putting the machine away:
– Empty the fuel tank.
– Start the engine and run it idle until it comes to
a halt, so that it uses up all the fuel that is left
in the carburettor.
– Wait for the engine to cool down and remove
the spark plug.
– Pour a teaspoon of (new) 2-stroke engine oil
into the spark plug slot.
– Pull the starter rope several times to deliver oil
to the cylinder..
– Replace the spark plug with the piston in the
dead end upper position (visible from the
spark plug slot when the piston is at maximum
stroke).
• Restarting work
When you wish to start using the machine again:
– Remove the spark plug.
– Pull the starter rope a few times to eliminate
excess oil.
– Check the spark plug as described in chapter
"Checking the spark plug".
– Prepare the machine as indicated in the para-
graph entitled "Preparing for work".
EN
If you are not going to use
15