215651
173
Revision B
$
%
&
Figure 5.105: Cross-Shaft Support
8.
If there is a tracking problem on the drive pulley, adjust the
position of the cross-shaft support tube as follows:
a.
Loosen nut (A) on support assembly (B).
b.
To correct a toe-out condition, slide support
assembly (B) rearward in slot (C).
c.
To correct a toe-in condition, slide support
assembly (B) forward.
d.
Tighten nut (A).
e.
Operate the header and check the belt tracking. Adjust
the support assembly as required.
f.
If belt tracking problems continue, proceed to Step
.
$
$
&
'
(
%
Figure 5.106: Knife Drive
–
Left Side
9.
Correct a tracking problem on the knife drive box pulley by
adjusting idler positions as follows:
a.
Loosen jam nuts (A).
b.
Loosen jam nut and adjuster bolt (B) to relieve belt
tension.
c.
Turn bolts (C) and (D) clockwise to move belt inboard,
or counterclockwise to move belt outboard.
NOTE:
Bolts must touch the endsheet to prevent vibration.
d.
Check that belt does not ride against flanges on
pulley (E).
e.
Tighten jam nuts (A).
f.
Tension the belt. For instructions, refer to
Timed Double-Knife Drive Belts, page 167
.
g.
Operate the header and check the belt tracking.