F.F. Group GBB 452 PRO, Original Instructions Manual

Page: 13 / 72

www.ffgroup-tools.com
GBB 452 PRO | GBB 576 PRO English | 13
►
Use the engine at low speed for lightweight material
and small bushes on the lawn;
►
Use the engine at average speed to move grass and
lightweight leaves on pavement or solid ground;
►
Use the engine at high speed for heavier materials like
fresh snow or voluminous dirt.
►
Use a rake or a brush to release rubbish stuck to the
ground.
►
Hold the opening of the blower as close to the ground
as possible. Utilize the entire length of the blow pipe to
keep the air current close to the ground.
WARNING:
Always pay the utmost attention to prevent
removed material or dust from injuring people or animals
or damaging property. Always assess wind direction and
never work against the wind.
4.1 END OF OPERATIONS
When you have finished your work:
►
Switch off the engine as indicated above
►
Disconnect the spark plug cap.
MAINTENANCE AND CLEANING
1) WARNING: Before cleaning or doing maintenance
work, disconnect the spark plug cap and read the rele -
vant instructions. Wear proper clothing and protective
gloves whenever your hands are at risk.
2) WARNING:
Never use the machine with worn or dam -
aged parts. Faulty or worn-out parts must always be
replaced and not repaired. Only use original spare
parts: the use of non-original and/or incorrectly fitted
parts will jeopardize the machine and impair safety,
may cause accidents or personal injuries for which
the Manufacturer is under no circumstance liable or
responsible.
3)
Any adjustments or maintenance operations not de -
scribed in this manual must be carried out by your
Dealer or a specialized Service Centre with the nec
-
essary knowledge and equipment to ensure that the
work is done correctly maintaining the machine’s orig
-
inal safety level. Any operations performed in unau -
thorized centers or by unqualified persons will totally
invalidate the Warranty and all obligations and respon
-
sibilities of the Manufacturer.
4) Keep all nuts and screws tight to be sure the machine
is always in safe working condition. Routine main -
tenance is essential for safety and for maintaining a
high-performance level.
5) Do not perform any work on the machine that is not
described in this manual unless adequately skilled with
appropriate tools.
6) Do not store the machine with fuel in the tank in an
area where the fuel vapors could reach an open fame,
a spark or a strong heat source.
7) Allow the engine to cool down before storing the ma -
chine in any enclosure.
8) To reduce fire hazards, keep the engine, exhaust
silencer and fuel storage area free from sawdust,
branches, leaves, or excessive grease; never leave
containers with the debris inside the storage area.
9)
If the fuel tank has to be emptied, this should be done
outdoors once the engine has cooled down.
10) Wear work gloves when performing all maintenance.
11) Before putting the machine away, check you have
removed wrenches or tools used for maintenance.
12)
Store the machine out of the reach of children!
AIR FILTER
IMPORTANT
Cleaning the air filter is essential to guar -
antee the efficiency and duration of the machine. Do
not work with a damaged filter or without a filter, as this
could permanently damage the engine.
It must be cleaned after every 8-10 working hours.
Clean the filter as follows:
►
Loosen the lock knob (Fig. 15), remove the cover ,
sponge filter (a) GBB 452 PRO & GBB 576 PRO and
paper filter (b) GBB 576 PRO.
►
Wash the sponge filter with soap and water, then leave
the filter to dry in the open air. Do not use petrol or
other solvents.
►
Remove the paper filter and clean it using air under
pressure GBB 576 PRO, with direction from the back -
side of the filter (clean area) to its front side (dirty area)
only. If needed, replace the paper filter with a new one.
►
Refit the sponge filter, paper filter and cover and tight -
en the lock knob. Make sure the paper filter is on the
bottom, and the sponge filter is on the top.
CHECKING THE SPARK PLUG
Periodically remove and clean the spark plug using a met -
al brush to get rid of any deposits. Check and reset the
correct distance between the electrodes.
Replace the spark plug and fasten it firmly using the sup
-
plied wrench. The spark plug must be replaced with one
with the same characteristics whenever the electrodes
have burnt or the insulation has worn, and in any case
every 100 working hours.
LONG PERIODS OF DISUSE
IMPORTANT
If the machine will not be used for a period
of more than 2-3 months it is recommended to follow some
advice to avoid difficulty when you wish to use the machine
and to 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 carbu -
rettor.
►
Allow the engine to cool down and remove the spark
plug cap.
WARNING