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

6.6 Knife Drive

6.6.1 Knife Drive Box

The knife drive box converts rotational motion into reciprocating motion to the knife. It is belt driven from a hydraulic
motor that is powered by the adapter hydraulic pump.
CAUTION
To avoid personal injury, before servicing machine or opening drive covers, refer to
Servicing, page 113.

Mounting Bolts

Check the torque on the four knife drive box mounting bolts (A) and (B) after the first 10 hours 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 box.
1. Open endshield. Refer to
37.
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.
169899
MAINTENANCE AND SERVICING
Opening Endshields, page
153
Figure 6.49: Knife Drive Box
Figure 6.50: Knife Drive
6.1 Preparation for
Revision A