Carburetor Adjustment - Truper PRETUL MOT-4520P Manual Del Usuario

Carburetor Adjustment

CAUTION
• Adjusting the carburetor shall only be
carried out by the
Center specialists.
• Before they carry out the adjustments to the carburetor
verify the air filter and the ventilation slots in the starter unit
are clean (see page 19).
• The motor shall be warm before any adjustment to the
carburetor.
• The carburetor is shipped from the factory already
adjusted. It only admits limited adjustment to the "L"
nozzle (moderate injection) and "H" (intense injection)
within a 1/2 turn range. Do not force the nozzles beyond
the range to prevent severely damaging the motor.
• The nozzles are inside the upper orifice in the motor
cover marked with an "L" and an "H" in one side of the
jack line. There are plastic caps that prevent turns to the
left with regards to the original adjustment.
Slow speed Adjustment
• The slow speed screw is inside the lower orifice in the
motor cover and marked with a "T" in one side of the
jack-line.
• If the motor starts, runs and accelerates but cannot run
idle, turn to the right the idle screw so that the motor can
run idle.
• If the chain advances with the motor set in idle, turn the
idle button to the left to reduce the speed so that the
chain will nor advance.
• If the chain still moves when the motor is in idle speed
after adjusting the screw, turn off the chainsaw, stop using
it until is adjusted in a
Service Center.
DANGER • Using the chainsaw whit the chain
moving when idle can cause severe personal injuries.
Spark Plug Replacement
• The motor uses a Bosh L8RTF spark plug with an
electrode gap of 0.025". Replace the spark plug with a
similar new one at least every six months.
• To replace the spark plug, remove the motor cover (see
page 19).
• Using a special wrench turn left and loosen the worn
spark plug and remove it.
• Insert the new spark plug and tighten it to the right
using your hand, then tighten a half turn with a wrench
for the spark plug change, you can go to a
Authorized Service Center.
CAUTION
• Use care to prevent damaging the
spark plug thread. Otherwise the motor gets seriously
damaged.
20
ENGLISH
• Depending on the type of fuel, the amount of oil used
and / or the conditions the tool is used, the exhaust and
Authorized Service
muffler can get clogged with carbon deposits. If you
notice loss of power remove those deposits to restore
performance. Go to a
Service Center to carry out this service.
• The muffler is built with a spark arrest screen inside the
muffler. After being used long periods of time the screen
gets soiled and the muffler has to be replaced. Go to a
Chain Brake
• Remove the bar housing. Inspect and clean the chain
brake components. Look for wear in the brake band.
Replace it if worn to half of its original thickness 0.035" or
if malformed.
• Always keep clean and lightly oiled the chain brake
mechanism.
• Check the chain support and replace if damaged.
Chainsaw Storage
When storing the chainsaw one month or longer,
consider the following:
• Drain all the contents of the fuel tank into a dedicated
gasoline container. All the remaining oil can be used in
another 2-stroke motor needing a 40:1 ratio.
• Run the motor until consuming all the fuel and it turn
Authorized off. This way the residual fuel will be eliminated and will
prevent gum residues that damage the fuel system.
• Drain all the oil tank contents off the bar and chain. Use
a dedicated container for oil.
• Clean the chainsaw thoroughly.
• Store the unit in a ventilated space away from corrosive
agents like corrosive garden chemicals or de-icing salt.
Also, away from children reach.
• Comply with all the government rules regarding safety,
handling and storing fuel.
Adjustments
and Maintenance
Exhaust and Muffler Cleansing
Authorized Service Center to replace.
Authorized