GGP ITALY B 28, Operator'S Manual

Page: 35 / 408

SHARPENING THE 3 or 4 POINT BLADE
(Fig. 20)
Use protective gloves. If
sharpening is done without removing the
blade, disconnect the spark plug cap.
Sharpening must be done taking account of the
type of blade and cutting edges, using a flat file and
working all the points equally.
The references for correct sharpening are given in
Fig. 20:
A = Incorrect sharpening
B = Sharpening limits
C = Incorrect and unequal angles
It is important to retain the correct balance after
sharpening.
3 or 4 point blades can be used from both sides.
When one side of the points is worn, the blade can
be turned and the other side used.
The blade must never be
repaired, but must be replaced as soon as
signs of breaking are noted or the sharpening
limit is exceeded.
HEAD LINE REPLACEMENT (Fig. 21)
– Follow the sequence indicated in the figure.
SHARPENING THE LINE CUTTING KNIFE
(Fig. 22)
– Remove the line cutting knife (1) from the guard
(2) by unscrewing the screws (3).
– Fix the line cutting knife in a vice and sharpen it
using a flat file, being careful to retain the origi-
nal cutting angle.
– Refit the knife on the guard.
EXTRAORDINARY MAINTENANCE
All maintenance operations not foreseen in this
manual must be performed exclusively by your
dealer.
All and any operations performed in unauthorised
centres or by unqualified persons will totally inval-
idate 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 cover correctly fit-
ted.
LONG PERIODS OF DISUSE
If you are not going to use
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 per-
manent 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 fresh oil into the spark plug
hole.
– 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 ex-
cess 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”.
IMPORTANT
MAINTENANCE AND STORAGE 13
EN