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Revision A
5.4.2
Tensioning Timed Knife Drive Belts
The procedure for tensioning timed knife drive belts is the same for both sides of the header. The illustrations shown are
for the left side
—
the right side is opposite.
IMPORTANT:
To prolong belt and drive life, do
NOT
overtighten belt.
IMPORTANT:
Do
NOT
use the adjuster bolt at the drive pulley to adjust timing belt tension.
1.
Open the endshield.
1019546
A
B
Figure 5.7: Left Knife Drive
2.
Loosen two nuts (A) enough to allow the idler pulleys (B)
to pivot.
1020049
A
B
C
Figure 5.8: Left Knife Drive
3.
Thread flange nut (C) down adjuster bolt (B) to push the
bracket (A) up.
NOTE:
Tension is checked at midspan of the belts. The belts should
deflect 20 mm (3/4 in.) with 89 N (20 lbf) of force applied.
Содержание D1X Series
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