MacDon D60 Draper Headers - Manual (Page 128)

SECTION 8. MAINTENANCE AND SERVICING
Form 169441 126 Revision B
8.9.6 REEL DRIVE SPROCKET - D60
CAUTION
To avoid bodily injury from fall of raised reel,
always engage reel props before going under
raised reel for any reason.
8.9.6.1 Removal - Drive Sprocket
a. Remove reel drive cover(s). Refer to Section
8.9.4 Reel Drive Chain - D60.
b. Loosen six bolts (A) on motor mount.
c. Slide the motor (B) and motor mount (C)
“downward” until chain (D) is loose.
d. Slip chain off drive sprocket (E).
e. Remove cotter pin (F) and slotted nut (G).
f. Remove sprocket (E).
IMPORTANT
Do not use pry bars and/or hammer to
remove sprocket. This will damage
the motor. Use a puller if sprocket
does not come off by hand.
8.9.6.2 Installation - Drive Sprocket
Refer to illustrations opposite.
a. Align keyway in sprocket (E) with key in shaft,
and slide new sprocket onto shaft.
b. Install slotted nut (G), and torque to 10 - 20 in·lbf
(1.1 - 2.2 N·m).
c. Install cotter pin (F). Tighten nut to next slot if
required.
d. Slip chain (D) over drive sprocket and tighten
chain.
e. Slide the motor (B) and motor mount (C) until the
required tension is achieved. The tension on the
chain (D) should be such that hand force deflects
the chain 1/8 inch (3 mm) at mid-span.
f. Tighten bolts (A) to 75 ft·lbf (102 N·m).
g. Re-install drive cover(s). Refer to Section 8.9.4
Reel Drive Chain - D60.
G
F
E
A
A
SINGLE REEL SHOWN - DOUBLE REEL SIMILAR
D
B
C