4.
If required, adjust knife speed as follows:
5.
Shut down engine, and open engine hood.
6.
Locate the knife drive pump (A) and knife speed
adjuster screw (B) under the right (cab-forward) side
of the windrower.
NOTE:
The knife speed adjuster screw may have a
plastic cap (B) covering it. Pull this cap off to
expose the screw.
Figure 5.22: Knife Drive Pump
7.
Loosen jam nut (A).
8.
Turn adjuster screw (B) clockwise (screw in) to
decrease knife speed, and counterclockwise (screw
out) to increase the knife speed.
NOTE:
One turn of the adjuster screw (B) will change
the knife speed by approximately 116 strokes per
minute (spm), or the knife drive box pulley speed
by 58 revolutions per minute (rpm).
9.
Once adjustment has been made, torque jam nut (A).
10. Close hood, start engine, and recheck knife speed.
Figure 5.23: Knife Speed Adjuster Screw
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