Husqvarna 966451906 manual Cleaning and inspection Clean all units in clean petrol, Assembly

Repair Instructions

Cleaning and inspection Clean all units in clean petrol.

Use compressed air to dry the petrol on the com- ponents. Direct the air through all channels in the carburettor housing and ensure that they are not blocked. Check the following:

1.That the gasket, pump and control diaphragms are undamaged, as well as the gasket between the carburettor body and the autotuner.

2.That there is no play on the throttle and choke valve shafts.

3.That the needle valve M and its lever arm Q are not worn. See figure 38.

4.That the fuel screen W is intact and clean. See figure 39.

5.That the inlet manifold V is intact. See figure 39.

6.Use the service tool, Engine Diagnostic Tool 576 69 23-01, to inspect the AutoTune unit. See separate instruction.

Assembly

Observe cleanliness when assembling the car- burettor. The slightest contamination can result in downtime.

1.If throttle and choke valves with shafts, lever arms and springs are removed, these must be assembled. The spring is tensioned 1-2 turns. Lubricate the shaft bearings using a light oil.

2.Fit the fuel screen W using the handle of a small screwdriver. See figure 39.

3.Fit the gasket X in the carburettor as well as the holder Y. Screw in place screw Z as outlined in figure 39.

4.See figure 39 on how to assemble the AutoTune AB unit with gasket.

Note! When replacing the AutoTune unit or car- burettor with an AutoTune unit, the unit must first be programmed before it can be used. Refer to the local support page for more information.

	S
	V
	T
	AB
	W
	X
	Y
U
Fig 39	Z
38 - English