Fuel Tank - Husqvarna 555 Workshop Manual

7.14.8 To adjust the metering lever
The distance between the metering lever and the gasket
surface of the carburetor housing must be 0.55 mm.
Adjust the distance if it is more or less than 0.55 mm.
• Move the end of the metering lever down (A) to
decrease the distance. Move the end of the metering
lever up (B) to increase the distance.
A
7.14.9 To do a pressure test of the carburetor
1. Remove the carburetor. Refer to
install the carburetor on page 36 .
2. Make sure that the carburetor is correctly
assembled. Refer to
page 40 .
3. Connect the pressure tester to the fuel inlet on the
carburetor. Increase the pressure to 50kPa. Refer to
Servicing tools on page 9 .
4. Lower the carburetor in a container with gasoline to
find leaks.
5. Make sure that there are no leaks.
1540 - 001 -
B
To remove and
To assemble the carburetor on
7.14.10 Troubleshooting leakage
Fault
Leakage in the diffuser jets
Leakage in the impulse pipe
Leakage in the ventilation hole on the
metering unit
7.14.11 Adjustment of the unit
Note: The product adjusts the tune automatically and will
be fully adjusted after some minutes of standard
operation.
The high speed part is adjusted during loaded operation,
such as cutting and felling.
The idle part is adjusted when you operate the product
at idle speed.

7.15 Fuel tank

7.15.1 To remove and install the fuel tank
1. Drain the fuel tank.
2. Remove the chain brake system. Refer to
disassemble the chain brake on page 15 .
3. Remove the cylinder cover.
4. Remove the spark plug cap and the spark plug.
5. Remove the air filter. Refer to
the air filter on page 34 .
6. Remove the air filter holder and the carburetor.
Refer to To remove and install the carburetor on
page 36 .
7. Remove the screw and the chain catcher.
8. Remove the front handle. Refer to
21 .
Cause
The needle
valve
The pump gas-
ket
The control
gasket
To
To remove and install
Handles on page
Repair instructions - 41