MacDon A40-D Pull-Type - Manual (Page 119)

SECTION 7 MAINTENANCE AND SERVICING
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117
Revision F
7.8 KNIFE AND KNIFE DRIVE
CAUTION
To avoid personal injury, before servicing
header/mower conditioner or opening drive
covers, follow procedures in Section 7.1
PREPARATION FOR SERVICING.
CAUTION
Wear heavy gloves when working around or
handling knives.
WARNING
Keep hands clear of the area between guards
and knife at all times.
7.8.1 Replacing Knife Section
Check daily that sections are firmly bolted to the
knife back, and are NOT worn or broken.
Replace as required. A worn or broken knife
section can be replaced without removing knife
from cutterbar.
a. Stroke knife as required to expose
knife sections.
b. Remove lock nuts (A), and lift section (B) off
of bolts.
IMPORTANT
Do NOT mix heavy and light knife sections
on same knife.
c. Clean any dirt off of knife back, and position new
knife section on bolts.
d. Secure with lock nuts, and tighten to
required torque.
7.8.2 Removing Knife
WARNING
Stand to rear of knife during removal to
reduce risk of injury from cutting edges.
Wear heavy gloves when handling knife.
a. Stroke knife to its outer limit.
b. Clean area around knife head, and remove nut
and bolt (C).
c. Remove grease zerk from pin (D).
d. Insert screwdriver in groove of pin (D), and pry
up on knife head pin to free knife. Pin does NOT
have to be removed from arm.
e. Pull knife out.
f. Cover knife head to shield bearing from dirt.
C
D
A
B