MacDon 873 Combine Adapter User Manual
Page 69
Form # 147069
Issue 09/06
67
Adapter Mounting Instructions
for John Deere Combines
PREPARING THE COMBINE (continued)
2. Check with Combine dealer to ensure combine
is equipped with tire size, rear ballast etc. to
carry larger headers.
3. IMPORTANT: To prevent damage to feeder
house and/or adapter feed drum or to improve
feeding, remove all feeder house dust shields
(A), and upper and side closure panels that are
removable.
NOTE: Contour master dust shield is not fully
removable. The adapter feed drum must be
moved forward to compensate for this. See
page 45.
4. Lock pin (B) both sides must be in retracted
position before attaching adapter.
5. For models with variable speed feeder house
drive, set header output shaft speed to 520
rpm.
6. Set feeder chain to high speed. For older
combines, additional chain links will be required
to move chain to larger sprocket at (E). On
newer combines the adjustment range allows
for this repositioning. Refer to Combine
Operator’s Manual.
7. Contour Master: To improve performance,
move feeder chain as far forward as possible
by adding links.
8. Adjust combine feed drum height to GRAIN
position. Refer to Combine Operator’s Manual.
9. Level Land Prior to 50 Series Feeder House:
Attach spline shaft provided with adapter to
feeder house L/H output drive as follows:
7720, 9500, 9510 & CTS
a. Remove existing sprocket coupler.
b. Ensure that the three 3 inch long bolts (C) are
just tight enough to eliminate gaps between
parts, but no tighter.
c. Position spline shaft & clamp assembly onto
shaft and tighten the two 4-1/2 inch long bolts
(D) evenly to 80 ft.lbs. (110 N·m).
d. Tighten the three 3 inch long bolts (C) to 80
ft.lbs. (110 N·m).
8820, 9600 & 9610
a. Remove the three 3 inch long bolts connecting
spline shaft (F) to clamp halves.
b. Attach spline shaft (F) directly to sprocket with
three 1/2 x 1-1/4 inch bolts and flange nuts
provided.
LEVEL LAND PRIOR TO 50 SERIES:
7720, 9500, 9510 & CTS - ATTACH
SPLINE SHAFT & CLAMP
D
C
LEVEL LAND PRIOR TO 50 SERIES:
8820, 9600 & 9610
ATTACH SPLINE SHAFT
F
LOCK PINS RETRACTED
REMOVE
E
B
A