MacDon D60 Draper Headers User Manual
Page 104

SECTION 8. MAINTENANCE AND SERVICING
Form 169441
102
Revision B
L
d. Loosen two bolts (H) on sickle drive mounting
bracket.
e. Turn adjuster bolt (J) to loosen the two V-belts
(K), and remove belts.
f.
Remove bolt in plate 
(L) in left endsheet at 
wobble box, and 
remove the plate. 
This provides 
clearance between the 
pulley and endsheet 
for the belt when it is 
removed. 
g. Slip timing belt off
wobble box pulley, and route the belt between the 
wobble box pulley and the endsheet. 
h. Remove belt from drive pulley.
8.7.9.1.3
Installation - Left End Timing Belt
a. Locate timing belt (M) onto drive pulley (N).
b. Route belt between the wobble box pulley (O)
and the endsheet, and locate on wobble box 
pulley and over idler (P). 
NOTE
When installing new belt, never pry belt 
over pulley. Be sure adjusting device is 
fully loosened, then tension belt. 
c. Position V-belts (K) onto drive pulleys.
d. Turn adjuster bolt (J) to move drive motor until a
force of 12 lbf (53 N) deflects V-belts (K) 1/8 in. 
(3 mm) at mid-span. 
e. Tighten the two bolts (H) on drive mounting
brackets.
(continued next page)
J
H
K
J
H
K
N
M
O
P
