215028
51
Revision A
1028349
A
B
C
Figure 7.5: Conditioner Drive
4.
Ensure drive belt (A) is in the grooves on drive pulley (B)
and driven pulley (C).
NOTE:
If necessary, loosen the jam nut and adjuster nut to relieve
belt tension while checking.
1029381
A
B
C
D
E
Figure 7.6: Conditioner Drive
5.
Loosen M16 hex head bolt and lock nuts (A) on pulley
mount bracket (B), and adjust position of bracket until the
center-to-center distance (C) between drive pulley (D) and
driven pulley (E) is 723 mm (28 7/16 in.).
6.
Torque hardware to 170 Nm (126 lbf
∙
ft).
1029373
A
C
D
B
E
Figure 7.7: Conditioner Drive
7.
With hardware fully loosened, slide threaded rod (E) up and
backward into the disc speed sensor bracket, then snug
hardware to engage the rod pivot point with the bracket.
8.
Measure the length of tensioner spring (C). For proper belt
tension, dimension (D) should be set to 17 mm (11/16 in.).
9.
To adjust spring tension, loosen jam nut (A) by turning it
counterclockwise.
10. Turn adjuster nut (B) clockwise to increase tensioner
spring/belt tension or turn adjuster nut (B)
counterclockwise to decrease tensioner spring/belt tension.
11. Once the correct spring measurement has been achieved,
hold adjuster nut (B) in place and tighten jam nut (A)
against it by turning the jam nut clockwise.
12. Close the driveshield.