Husqvarna ST 224 Operator's Manual page 17

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)
4. Install a ¼-20 locknut (D) and tighten. (Fig. 70)
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).
4. Install a ¼-20 locknut (D) on the shear pin and
tighten. (Fig. 71)
5. Put the ON/OFF key in the ignition and connect
the spark plug cable to the spark plug.
To examine the tires
• Keep the tires free of fuel, oil and chemicals to
prevent damage to the rubber.
• Keep the tires away from stumps, stones, ruts,
sharp objects and other objects which can cause
damage to the tires.
• Keep the tire pressure correct, see
data on page 23 .
1481 - 005 - 18.05.2021
Use only original
Use only original
Technical
To clear a clogged discharge chute
deflector
Do not unclog the discharge chute deflector before
the following operations are made.
1. Release the auger engagement and the drive
engagement at the same time.
2. Wait 10 seconds to make sure that the augers
have stopped.
3. Turn off the product.
4. Use the tool for cleaning (at least 37 cm (15 in.)
long, included in some models) to remove the
clog.
WARNING:
hands into the discharge chute
deflector or inside the auger bucket.
To replace the scraper bar
1. Put the scraper bar (A) in a reversed position
when it is worn to the edge of the housing. (Fig.
72)
2. Replace the scraper bar if it is worn on both
sides or if it is damaged.
Drive belts
WARNING:
product are of special construction and
should be replaced by original
equipment manufacturer (OEM) belts
available from your nearest service
center. Using other than OEM belts can
cause personal injury or damage to the
product.
WARNING:
requires separation of the product. While
separating the auger housing from the
frame, it is important that an assistant
stands in the operating position and
holds the product handles. Serious
personal injury and/or damage to the
product could occur if the product falls
during the belt replacement process.
Note:
The auger and traction drive belts are not
adjustable. Replace the belts if they are damaged or
begin to slip from wear. It is recommended to have
the belts replaced by a qualified service center.
Note:
It is recommended to replace the drive belt
and auger belt at the same time.
To prepare for replacement of the belts
1. Remove the fuel from the fuel tank.
Do not put your
The v-belts on your
The belt replacement
17