Husqvarna ST 424T Operator's Manual page 23

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. 86)
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. To use other
belts than OEM 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.
To prepare for replacement of the belts
1. Remove the fuel from the fuel tank.
2. Loosen the lock nut (A) that secures the chute
rotator head (B) to the mounting bracket (C) to
remove the discharge chute. (Fig. 87)
3. Loosen the two screws (A) that secure the belt cover
(B) to the frame (C) and remove the belt cover. (Fig.
88)
To remove the drive belt
1. Remove the auger belt (A). See
auger belt (for ST 424/427/430 only) on page 23 .
2. Remove the 9/16 in. pulley bolt (B) and remove the
engine pulley (C) from the engine. (Fig. 89)
3. Remove the drive belt (D) from the lower pulley (E).
To install the drive belt
1. Put the drive belt onto the lower pulley (E).
Note:
Make sure that the drive belt is put in the
lower pulley groove properly.
2. Put the drive belt in the groove of the engine pulley
(C). (Fig. 89)
3. Install the 9/16 in. pulley bolt (B) and attach the
engine pulley (C) on the engine. Tighten the pulley
bolt ( 41-47 Nm/30-35 Ft. Lbs).
4. Install the auger belt (A). See
belt on page 24 .
876 - 019 - 05.10.2023
The v-belts on your
The belt replacement
To remove the
To install the auger
5. Operate all controls to make sure that the drive belt
is installed correctly and that all components move
correctly.
To install the belt cover
1. Install the belt cover (B) on the frame (C) and tighten
the two screws (A). (Fig. 88)
2. Install the discharge chute.
To adjust the drive belt tension
1. Remove the belt cover. See
replacement of the belts on page 23 .
2. Loosen the idler pulley nut (A).
3. Move the idler pulley (B) in the direction of the belt to
increase the belt tension. Move it away from the belt
to decrease the belt tension. (Fig. 90)
4. Tighten the idler pulley nut (A).
5. Press and then release the drive speed control lever.
If the drive belt has tension when the drive speed
control lever is released, move the idler pulley away
from the drive belt to release the belt tension.
6. Install the belt cover. See
page 23 .
To remove the auger belt (for ST 424/427/430
only)
1. Remove the 5/16'' nut and the cable cover (E) from
the frame. (Fig. 91)
2. Remove the top 5/16'' bolts and the lower ¼'' bolts
(D) from the 2 sides of the frame. Do not discard the
bolts.
3. Loosen but do not remove the lower 5/16'' bolts (C)
on the 2 sides of the frame.
4. Remove the auger belt (B) from the engine pulley
(A).
5. Tilt the rear section down. The front section tilts
forward at the same time. The bottom bolt is a hinge
between the front and rear sections.
6. Put a wooden block below the hinge point to set the
product in the tilted position.
7. Move the auger brake arm and remove the auger
belt (B) from around the auger brake arm.
To remove the auger belt (for ST 424T/427T/
430T only)
1. Remove the 5/16'' nut and the cable cover (E) from
the frame. (Fig. 92)
2. Remove the top 5/16'' bolts from the 2 sides of the
frame. Do not discard the bolts.
3. Remove the lower 5/16'' bolts (C) on the 2 sides of
the frame.
4. Remove the auger belt (B) from the engine pulley
(A).
To prepare for
To install the belt cover on
23