MacDon D65 Operator's Manual page 161

NOTE:
For ease of removing or installing knifehead pin,
remove grease zerk from pin.
8. Install knifehead pin (A) through the output arm and
into the knifehead.
9. Set groove (B) in knifehead pin 1/16 in. (1.5 mm)
above (C). Install the 5/8 in. x 3 hex head bolt (D) and
nut and torque to 160 ft·lbf (217 N·m).
10. Install grease zerk (A) into the knifehead pin, turn the
grease zerk for easy access.
IMPORTANT:
Grease knifehead just enough to start a slight
downward movement. Over-greasing will lead to
knife misalignment which causes guards to overheat
and drive systems to overload.
11. Check the knife drive box pulley and drive pulley
alignment. If adjustment is required, contact your
MacDon Dealer.
12. Tighten knife drive box side bolts (A) first, then the
bottom bolts (B). Torque to 200 ft·lbf (271 N·m).
13. Stroke the output arm to mid stroke, check and ensure
that the knife bar does not contact the front of the
first guard. If adjustment is required, contact your
MacDon Dealer.
14. Install and tension the knife drive belt(s). Refer to
Knife Drive Belts, page
headers, also check the knife timing. Refer to
Double-Knife Timing, page 156
15. Close endshield. Refer to
36.
147725
MAINTENANCE AND SERVICING
5.6.2
148. For timed double-knife
Adjusting
for timing instructions.
Closing Endshields, page
Figure 5.53: Knifehead
Figure 5.54: Knifehead
Figure 5.55: Knife Drive Box
147
Revision A