Husqvarna 966451906 Manual Do Utilizador

42

 - English

1.  Drain the fuel from the tank.

2.  Remove the cylinder cover, the clutch cover, the 

chain and the bar. See the Operator’s Manual. 

Dismantle the carburettor as outlined in “Dis-

mantling the carburettor”.

3.  Loosen the hoses A to D. See figure 50.

4.  Loosen the screws F. See figure 51.

5.  Loosen the movement limiter H. See figure 53.

6.  Pull out the hoses A to D in the bottom of the car-

burettor compartment. Unhook the throttle cable, 

E, from the intake bellows before pulling out from 

the bottom of the carburettor compartment.

Repair Instructions

The two-way valve has the following properties:

•   Controlled opening pressure in both directions, 

which prevents a positive pressure or a vacu-

um developing in the fuel tank and impairing 

engine performance. This also prevents fuel 

leakage.

•   Opening pressure outward 100-450 mbar.
•   Opening pressure inward (vacuum) max. 

70 mbar. (2 locations)

1.  Open the tank lock and leave it open during the 

entire test. Drain the fuel from the tank.

2.  Loosen the positive pressure hose as outlined 

in figure 54. Connect the pump, ref. no. 531 03 

06-23, to the tank valve J.

3.  Switch the pump to vacuum mode.
4.  After pumping the indicator should be between 

10-45 kPa.

1.  Open the tank lock and leave it open during the 

entire test. Drain the fuel from the tank.

2.  Loosen the positive pressure hose as  

outlined in figure 54. Connect the pump,  

ref. no. 531 03 06-23, to the tank valve J.

3.  Switch the pump to pressure mode.
4.  After pumping the indicator should stop at max. 

7 kPa.

Fig 50

Fig 51

G
G

Fig 53

Fig 52