Maintenance And Storage - IVT GCHS-25 Manual

MAINTENANCE AND STORAGE

CAUTION! Before carrying out any
maintenance
the engine and wait until it stops
completely.
∙
Always keep the tool and the ventilation slots (if
present) cleaned. Regular cleaning and maintenance of
the appliance will ensure efficiency and prolong the life
of your tool.
∙ If the tool should fail despite the rigorous
manufacturing and testing procedures, the repair should
be carried out by an authorized IVT customer service.
∙ Keep all nuts, bolts, and screws tight, to be sure the
tool is in safe working condition.
∙ Replace worn or damaged parts for safety.
∙ Use only original spare parts. Parts not produced
by manufacturer may cause poor fit and possible injury.
∙ Store the tool in a dry room out of reach of kids and
away from any flammable material.
∙ Store all fuel tanks securely. Never store the
equipment with fuel in the tank inside a building, where
fumes can reach an open flame or sparks.
ATTENTION! When contacting an authorized IVT
Service Center, please keep 1/3 of the volume of fuel
and oil in the tanks.
Carburettor setting
The carburettor has been set to its perfect adjustment
at the factory. If it requires adjusting, take the tool to the
nearest authorized IVT Service Centre.
Guide bar (7) maintenance
∙ The guide bar (7) should be reversed every 8
working hours to ensure uniform wear.
∙ Regular lubrication of the guide bar (7) (guide rail
for the saw chain (6) and teeth) is essential to maintein
an optimum level of performance.
∙ Oil passages on the guide bar (7) should be
cleaned to ensure proper lubrication of the guide bar (7)
and saw chain (6) during operation.
Checking the automatic lubricating mechanism of
the saw chain (6)
The operation of the automatic chain lubricating
mechanism may be checked as follows:
∙ Turn on the machine and keep its tip pointing towards
a piece of cardboard or paper placed on the ground.
operation, turn off
15
Instruction manual
WARNING! Do not touch the ground
with the saw chain (6)! Maintain a safe
distance of approximately 20 cm.
∙ If the cardboard or paper shows an increasing
amount of oil, the automatic lubricating mechanism is
working correctly. If, however, despite a full oil reservoir,
no oil traces are produced, eliminate malfunctions or
consult an authorized IVT service center.
∙ The amount of oil to lubricate the saw chain (6)
can be adjusted with the adjusting screw (27), which is
positioned on the bottom body of the machine [F17].
Turn the adjusting screw (27) counterclockwise to
increase the oil feed, clockwise to decrease it.
Checking the condition of the spark plug (25)
1. Put the machine on a level surface.
2. Loosen the anchor nut (5), remove the cover (13).
Remove the spark plug cap (26). [F18]
3.
4. Unscrew the spark plug (25) with the multi-purpose
spanner (28). [F19]
5. Purge the deposits from the electrodes of the spark
plug (25).
6. Check and adjust (if necessary) the gap between
the side and center electrodes of the spark plug (25).
The gap must be equal to 0, 7- 0,8 mm.
7. Replace the spark plug (25) in its correct position.
8. Replace the spark plug cap (26) on the spark plug (25).
Cleaning
Clean the machine casing from sawdust and wooden
waste, purge the ventilation slots (10) thoroughly. Do
not use caustic substances or solvents for cleaning the
machine. Avoid any oiling-up of the grips.
Cleaning the air filter (24) [F20]
Clean the air filter (24) after every 50 hours of work.
1. Put the machine on level surface.
2. Loosen the anchor nut (5) and remove the cover (13).
3. Clean the air filter (24) with alcohol and then wipe it
dry with a soft cloth.
4. Replace the air filter (24).
5. Replace the cover (13) and tighten the anchor nut (5).
Checking the sprocket (21) [F21]
Check for extensive wear, and replace it when the teeth
are worn over 0.3 mm.
Cleaning the fuel filter
1. Empty the fuel tank before inspecting the fuel filter.
2. Open the fuel tank plug (16) and use a wire hook
to pull out the suction head through the tank opening.
3. Inspect the fuel filter. Disassemble the fuel filter and
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