Husqvarna K 770 Dry Cut Manuel D'utilisation page 134

Problem
The product does not start.
The cutting blade rotates at idle
speed.
The cutting blade does not rotate
when the operator throttles up.
The product has no power when the
operator tries to throttle up.
The vibration levels are too high.
The temperature of the product is too
high.
The engine decreases in power or in
speed.
The dust is not collected properly
during cutting.
134
Cause
The start procedure is done incor-
rectly.
The stop switch in the right (STOP)
position.
There is no fuel in the fuel tank.
The spark plug is defective.
The clutch is defective.
The idle speed is too high.
The clutch is defective.
The belt is too loose or defective.
The clutch is defective.
The cutting blade is installed incor-
rectly.
The air filter is clogged.
The fuel filter is clogged.
The fuel tank flow is blocked.
The cutting blade is installed incor-
rectly.
The cutting blade is defective.
A vibration damping unit is defective.
The air intake or the flanges that de-
crease the temperature is blocked.
The belt moves.
The clutch is defective.
The air filter is clogged.
Improper cutting technique
There is a blockage in the hose, fan
or dust bag.
Possible solutions
Refer to To start the product with a
cold engine on page 123 and To start
the product with a warm engine on
page 125 .
Make sure that the stop switch
(STOP) is in the left position.
Fill with fuel.
Replace the spark plug.
Speak to your service agent.
Adjust the idle speed.
Speak to your service agent.
Tighten the belt or replace the belt
with a new one.
Speak to your service agent.
Make sure that the cutting blade is
correctly installed.
Examine the air filter. If it is necessa-
ry, replace it.
Replace the fuel filter.
Speak to your service agent.
Make sure that the cutting blade is
correctly installed and that it is not
Correct cutting
damaged. Refer to
blades on page 117 .
Replace the cutting blade and make
sure that it is not damaged.
Speak to your service agent.
Clean the air intake and the flanges
that decrease the temperature.
Examine the belt. Adjust the tension.
Always cut at full throttle.
Examine the clutch. Speak to your
service agent.
Examine the carburetor. Refer to
examine the carburetor on page 132
Basic working techniques on
Refer to
page 121 .
Remove the blockage. Refer to
use a dust bag on page 126 or refer
to "The fan does not operate" in this
schedule.
861 - 004 - 27.02.2019
To
To