Husqvarna ST 224 Manuel D'utilisation page 17

• If the spark plug is dirty, clean it and make sure
that the electrode gap is correct, refer to
Technical data on page 25 .
• Replace the spark plug if it is necessary.
To inspect the augers and the
scraper bar
1. Before each use, inspect the augers and the
scraper bar for wear.
2. If the edge of the scraper bar is worn, reverse the
scraper bar. If the scraper bar has damages or is
worn on both edges, replace it.
3. If the edges of the augers are worn, contact an
authorized service center to replace them.
To replace the auger shear pins
The auger shear pins protect the product from
damage. The auger shear pins break if an object
comes into the moving parts.
CAUTION:
equipment shear pins supplied with the
product.
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)
1481 - 005 - 18.05.2021
Use only original
4. Install a ¼-20 locknut (D) and tighten.
B
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:
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).
A B
C
D
Use only original
17