Husqvarna K 770 Vac Operator's Manual page 26

1. Remove the 2 screws on the spring assembly.
2. Push the 2 brackets on the snap locks with a
screwdriver.
To clean the spring assembly
CAUTION: Do not remove the spring from
the assembly.
1. Blow the spring with compressed air until it is clean.
2. Apply a light oil to the spring.
To attach the spring assembly
• Assemble in the opposite sequence of
the spring assembly on page 25 .
To install the starter housing
CAUTION: The starter pawls must come
into the correct position against the starter
pulley sleeve.
1. Pull out the starter rope approximately 0.5 m.
2. Keep the position of the starter rope and put the
starter against the product.
26
3. Slowly release the starter rope until the starter pawls
are in the correct position.
4. Tighten the 4 screws on the starter.
To examine the carburetor
Note: The carburetor has rigid needles to make sure
that the product always receives the correct mixture of
fuel and air.
1. Examine the air filter. Refer to
filter on page 27
2. If it is necessary, replace the air filter.
3. If the engine continues to decrease in power or
speed, speak to your Husqvarna servicing dealer.
To examine the fuel system
1. Make sure that the fuel tank cap and its seal are not
damaged.
2. Examine the fuel hose. Replace the fuel hose if it is
damaged.
To adjust the idle speed
Note: Recommended idle speed is 2700 rpm.
1. Start the engine.
To remove
2. Examine the idle speed. When the carburetor is
correctly adjusted, the cutting blade stops when the
engine is at idle speed.
3. Use the T screw to adjust the idle speed.
a) Turn the screw clockwise until the cutting blade
b) Turn the screw counterclockwise until the cutting
WARNING: If the cutting blade rotates at
idle speed, speak to your servicing dealer.
Do not use the product until the idle speed is
correctly adjusted or repaired.
T
starts to rotate.
blade stops to rotate.
To examine the air
705 - 002 - 12.11.2018