MAC215990
311
Revision A
1036586
A
B
Figure 4.123: Knifehead
5.
Install knifehead pin (A) through the drive arm and into the
knifehead.
6.
Position knifehead pin (A) so that groove (B) is 2 mm
(5/64 in.) above the drive arm.
1036590
A
B
C
Figure 4.124: Knifehead
7.
Secure the knifehead pin with M16 x 85 mm bolt (A) and
nut (B). Install the bolt from the inboard side of the arm.
Torque the bolt to 220 Nm (162 lbf·ft).
8.
Rotate the flywheel attached to the knife drive box to
manually stroke knife arm (A) to the inside limit of travel.
Ensure that there is still 0.2
–
1.2 mm (1/64
–
3/64 in.) of
clearance (C) between the drive arm and the knifehead.
9.
If no adjustment is required, proceed to Step
.
If the drive arm requires adjustment, contact the Dealer.
1036628
A
Figure 4.125: Knifehead
10. Reinstall grease fitting (A). Apply grease to the fitting until
the knifehead has a slight downward movement.
IMPORTANT:
Do
NOT
overgrease the knifehead. Overgreasing the
knifehead can result in knife misalignment, which excessive
heating of the guards and strains the knife drive motor. If
overgreasing occurs, remove the grease fitting to release
the pressure.
NOTE:
If air is trapped in the bearing cavity, the knifehead will
begin to move down before it has filled with grease.
