Husqvarna ST 424 Manuel D'utilisation page 23

2. Loosen the lock nut (A) that secures the chute
rotator head (B) to the mounting bracket (C) to
remove the discharge chute. (Fig. 86)
3. Loosen the two screws (A) that secure the belt cover
(B) to the frame (C) and remove the belt cover. (Fig.
87)
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. 88)
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. 88)
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 23 .
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. 87)
2. Install the discharge chute.
To adjust the drive belt tension
1. Remove the belt cover. See
replacement of the belts on page 22 .
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. 89)
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. 90)
876 - 019 - 05.10.2023
To remove the
To install the auger
To prepare for
To install the belt cover on
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. 91)
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).
5. Use the adjustment lever for the auger bucket to
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 install the auger belt
1. Move the auger brake arm (G). Put the auger belt
around and in the groove of the auger pulley (E).
(Fig. 92)
CAUTION:
is not caught between the frame and
auger housing as you put the unit
together.
2. Remove the wooden block from below the product.
3. Lift the handles to tilt the rear section up. The front
section tilts back and pivots to attach to the rear
section.
4. Make sure that the belt is put in the auger pulley (E)
groove correctly.
5. Install the 5/16'' bolts (C), and tighten (11-16 Nm).
6. For ST 424/427/430 only: Install the ¼'' bolts (D) and
tighten (5-8 Nm).
Make sure that the belt
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