MacDon D65 SP DHOM - Manual (Page 172)

MAINTENANCE AND SERVICING
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 0.06 in. (1.5 mm)
above (C). Install the 5/8 in. x 3 hex head bolt and
nut (D) and torque to 160 ft·lbf (217 N·m).
Figure 6.65: Knifehead
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 of knifehead. Over-greasing will misalign
knife, causing guards to overheat and overload the
drive system.
Figure 6.66: Knifehead
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 6.6.2
Knife Drive Belts, page 161 . For timed double-knife
headers, also check the knife timing. Refer to Adjusting
Double Knife Timing, page 169 for timing instructions.
15. Close endshield. Refer to Closing Endshields, page
38 .
Figure 6.67: Knife Drive Box
169899 160 Revision A