Husqvarna 555FX Operator's Manual page 24

Maintenance
Make sure that the bevel gear is filled to ¾ with grease.
Examine the fuel filter for contamination and the fuel hose for cracks and other
defects. Replace if it is necessary.
Examine all cables and connections.
Examine the clutch, clutch springs and clutch drum for wear. Replace it if it is
necessary.
Replace the spark plug.
Clean or replace the spark arrester screen.
Lubricate the drive shaft.
Carburetor
To adjust the idle speed
Your Husqvarna product is made to specifications that
decrease harmful emissions.
1. Make sure that the air filter is clean and the air filter
cover is attached before you adjust the idle speed.
2. Adjust the idle speed with the idle speed screw T
which is identified with "T" mark.
a) Turn the idle speed screw T clockwise until the
cutting attachment starts to rotate.
b) Turn the idle speed screw T counterclockwise
until the cutting attachment stops.
WARNING:
attachment does not stop when you
adjust the idle speed, speak to your
servicing dealer. Do not use the product
until it is correctly adjusted or repaired.
2
At an interval of 3 months.
24
2
If the cutting
3. The idle speed is correct when the engine operates
smoothly in all positions. The idle speed must be
below the speed when the cutting attachment starts
to rotate.
Note:
Technical data on page 31 for the
Refer to
recommended idle speed.
To adjust the high speed needle and low
speed needle
The high speed needle and low speed needle can be
adjusted to adapt the fuel supply to local conditions.
• Turn the high speed needle and low speed needle
clockwise to decrease the fuel flow.
• Turn the high speed needle and low speed needle
counterclockwise to increase the fuel flow.
To adjust the start throttle speed
(555RXT, 555FRM)
1. Apply idle speed to the product.
2. Push the start throttle lock. Refer to
overview on page 3 .
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