6spare knife, 7knife guards, Spare knife – MacDon FD75 OM User Manual

Page 318: Knife guards, 6 spare knife, 7 knife guards

To install a knife, follow these steps:

If knifehead pin is installed in knifehead (A), remove it.

Slide knife into place and align knifehead (A) with the
pitman arm (B).

Install knifehead pin in pitman arm (B), and tap it
down into knifehead, ensuring pin is bottomed out in
knifehead.

Tap underside of knifehead (A) until the pin is flush with
upper face (C) of pitman arm and until it just contacts
pitman arm (0.010 in. [0.25 mm]) gap (D).

Re-install bolt and nut (E) .Tighten nut to 160 lbf·ft (220
N·m).

Re-install grease zerk (F) in pin and position the zerk
for easy access.

Grease bearing.

Figure 6.97: Installing Knife

6.8.6

Spare Knife

A spare knife may be stored in the header frame tube at
the left end. Ensure knife is secured in place.

Figure 6.98: Spare Knife

6.8.7

Knife Guards

Check DAILY that guards are aligned and that knife sections are contacting shear surface of each guard.

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