Knife And Knife Drive; Replacing Knife Section - MacDon D65 Operator's Manual

6.6 Knife and Knife Drive

CAUTION
To avoid personal injury, before servicing machine
or opening drive covers, follow procedures in
Section 6.1 Preparation for Servicing, page
WARNING
Keep hands clear of the area between guards and
knife at all times.
CAUTION
Wear heavy gloves when working around or
handling knifes.

6.6.1 Replacing Knife Section

Check daily that sections are firmly bolted to the knife back and are not worn or broken. Damaged or worn sections
leave behind uncut plants.
Coarse serrated sections last longer than fine serrated sections in dirty or sandy conditions.
Fine serrated sections perform better in fine stemmed grasses and plants that contain more fibrous stems.
A worn or broken knife section can be replaced without removing knife from cutterbar.
To replace a knife section, follow these steps:
1. Stroke knife as required to center it between
guard tangs.
2. Remove lock nuts (A).
3. Remove bars (B) and lift knife section off the knife bar.
4. Clean any dirt off of knife back and position new knife
section on knife.
IMPORTANT
Do NOT mix fine or coarse knife sections on same
knife.
5. Reposition bars (B) and install lock nuts (A).
NOTE: If replacing a screw, make sure to fully
insert it. Do not use the nut to draw the
screw into the knife bar.
6. Torque nuts to 7 ft·lbf (9.5 N·m).
169594
MAINTENANCE AND SERVICING
111.
137
Figure 6.25
Figure 6.26
Rev. C