To Replace The Impeller Shear Pins; To Replace The Fuse - Husqvarna ST 424 Manual Del Usuario

1. If an auger shear pin breaks, stop the engine and
wait for the moving parts to stop.
2. Remove the ON/OFF key and disconnect the
spark plug cable.
3. Align the hole in the auger hub (B) with the hole
in the auger shaft (C) and install a new ¼ - 20 x 2
shear pin (A).
4. Install a ¼-20 locknut (D) on the shear pin and
tighten.
5. Put the ON/OFF key in the ignition and connect
the spark plug cable to the spark plug.

To replace the impeller shear pins

The impeller shear pins protect the product from
damage. The impeller shear pins break if an object
comes into the moving parts.
CAUTION: Use only original equipment
shear pins supplied with the product.
1. If an impeller shear pin breaks, stop the engine
and wait for the moving parts to stop.
2. Remove the ON/OFF key and disconnect the
spark plug cable.
3. Align the hole in the impeller hub (A) with the
holes in the impeller shaft (B) and install a new
¼-20 shear pin (C).
4. Install a ¼-20 locknut (D) on the shear pin and
tighten.
876 - 007 - 08.01.2020
A
C
B
D
C
A
D
B
5. Put the ON/OFF key in the ignition and connect
the spark plug cable to the spark plug.

To replace the fuse

The fuse holders are installed behind the battery
cover.
• Replace the fuse for engine control unit (A) with
a 5 A fuse.
• Replace the fuse for the starter solenoid (B) with
a 20 A fuse.
• Replace the fuse for the LED and the heated grip
(C) with a 5 A fuse.
• Position (D) contains a backup 5 A fuse.
B
A
B
C
D
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