Knife And Knife Drive; Knife Drive Box; Checking Mounting Bolts; Removing Knife Drive Box - MacDon D65 Operator's Manual

5.6 Knife and Knife Drive

5.6.1 Knife Drive Box

Knife drive boxes are belt driven by a hydraulic motor that is powered by the adapter hydraulic pump, and convert
rotational motion into the reciprocating motion of the knife.
CAUTION
To avoid personal injury, before servicing machine or opening drive covers, refer to
for Servicing, page 111.

Checking Mounting Bolts

Check the torque on the four knife drive box mounting bolts
(A) and (B), after the first 10 hours of operation and every
100 hours thereafter.
1. Torque side bolts (A) first, then the bottom bolts (B).
Torque to 200 ft·lbf (271 N m).

Removing Knife Drive Box

Single and Untimed Double Knife
This procedure applies to single and untimed double-knife drive boxes.
1. Open endshield. Refer to
35.
2. Loosen the two bolts (A) that secure the motor
assembly to header endsheet.
3. Loosen the tension on the belt by turning the tensioning
bolt (B) counterclockwise.
147725
MAINTENANCE AND SERVICING
Opening Endshields, page
Figure 5.37: Knife Drive Box
Figure 5.38: Knife Drive
140
5.1 Preparing Machine
Revision A