215651
165
Revision B
1.
Shut down the engine, and remove the key from the
ignition.
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&
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Figure 5.87: D1X Header Timed Knife Drive Belt
–
Left Shown
2.
Route knife drive belt (A) around pulley (B) and knife drive
box pulley (C).
NOTE:
Ensure the drive motor is fully forward. Do
NOT
pry the
belt over the pulley.
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Figure 5.88: Knife Drive V-Belts
3.
Install V-belts (C) onto the pulleys.
NOTE:
Ensure the drive motor is fully forward, do
NOT
pry the
belts over the pulley.
4.
Turn adjuster bolt (B) clockwise to tighten the V-belts. A
properly tensioned V-belt should deflect 4 mm (5/32 in.)
when a force of 52
–
77 N (12
–
17 lbf) is applied at the
midspan.
IMPORTANT:
To prolong the life of V-belts and drives, do
NOT
overtighten the V-belts.
NOTE:
If the belt is out of alignment, refer to
for Timed Double-Knife Belt, page 171
5.
Tighten two bolts (A) on the endsheet.