Husqvarna ST 427 Owner Manual - Page 21

To remove the drive belt, To install the drive belt, To install the belt cover, To adjust the drive

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To install the drive belt B 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). A A C D B C 3. Loosen the two screws (A) that secure the belt cover (B) to the frame (C) and remove the belt cover. C A B To remove the drive belt 1. Remove the auger belt (A). See To remove the auger belt (for ST 424/427/430 only) on page 22. 2. Remove the 9/16 in. pulley bolt (B) and remove the engine pulley (C) from the engine. A C D B E 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 To install the auger belt on page 22. 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). C A B E 3. Remove the drive belt (D) from the lower pulley (E). 2. Install the discharge chute. To adjust the drive belt tension 1. Remove the belt cover. See To prepare for replacement of the belts on page 20. 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. 876 - 011 - 11.05.2020 21

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B
A
C
3.
Loosen the two screws (A) that secure the belt
cover (B) to the frame (C) and remove the belt
cover.
C
A
B
To remove the drive belt
1.
Remove the auger belt (A). See
To remove the
auger belt (for ST 424/427/430 only) on page
22
.
2.
Remove the 9/16 in. pulley bolt (B) and remove
the engine pulley (C) from the engine.
A
B
C
D
E
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).
A
B
C
D
E
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
To install the auger
belt on page 22
.
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).
C
A
B
2.
Install the discharge chute.
To adjust the drive belt tension
1.
Remove the belt cover. See
To prepare for
replacement of the belts on page 20
.
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.
876 - 011 - 11.05.2020
21