MacDon D60 Draper Headers User Manual
Page 126
SECTION 8. MAINTENANCE AND SERVICING
Form 169441
124
Revision B
8.9.4.3.2 Breaking the Chain (Method 2):
a. Grind off the head from one of the link rivets, and
punch out the rivet to separate the chain.
b. Locate ends of chain on sprocket.
c. Install pin connector (A) (not available as a
MacDon part) into chain, preferably from the
sprocket backside.
d. Install connector (B) onto pins.
e. Install spring clip (C) onto front pin (D) with closed
end of clip in direction of sprocket rotation.
f.
Locate one leg of clip in groove of aft pin (E).
g. Press other leg of spring clip over face of aft pin
(E) until it slips into groove. Do not press clip
lengthwise from closed end.
h. Ensure clip is seated in grooves of pins.
i.
Slide the motor (F) and motor mount (G) until the
tension on the chain is such that hand force
deflects the chain 1/8 inch (3 mm) at mid-span.
j.
Tighten nuts (H), and re-check tension.
k. Re-install drive covers.
C
D
DIRECTION OF ROTATION
A
B
C
F
G
H