MacDon A40-D Pull-Type - Manual (Page 71)

SECTION 6 OPERATION
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Revision F
6.17.3 Reel Speed
For best feeding of the crop into the header/
mower conditioner, reel speed must be faster
than ground speed. This gently sweeps material
across the knife into the auger.
A slower reel speed will reduce crop carry-over,
while a faster reel speed will result in a more
even stubble height in down and tangled crops.
6.17.3.1 Reel Speed: A30-D
The A30 reel speed is fixed to the engine rpm
and auger speed. An optional 19 tooth drive
sprocket provides lower reel speeds
if necessary.
Refer to Section 5 SPECIFICATIONS for
available reel speeds at rated
tractor/windrower RPM.
Change auger drive sprockets as follows:
CAUTION
Stop engine, and remove key from ignition
before leaving Operator’s seat for any
reason. A child or even a pet could engage
an idling machine.
a. Remove reel drive belt (A) and reel drive
chain (B) from drive sprocket. Refer to Sections
7.9.1 Reel Drive Chain: A30-D and
7.9.2 Reel Drive Belts: A30-D.
b. Remove snap ring (C) from pulley (D), and
remove pulley.
c. Remove three bolts attaching sprocket to pulley,
and remove sprocket.
d. Attach applicable sprocket to pulley with three
bolts, and torque to 75 ft·lbf (102 N·m).
e. Replace pulley, and install snap ring.
f. Replace reel drive chain and belt. Refer to
Sections 7.9.1 Reel Drive Chain: A30-D and
7.9.2 Reel Drive Belts: A30-D.
6.17.3.2 Reel Speed: A40-D
The A40-D auger header features a hydraulic
direct drive reel with operating speed range of
15 to 85 rpm (M150, M155, M200, M205), 15 to
50 rpm (M100, M105), and is controlled from the
Operator’s station on the self-propelled
windrower.
Refer to your self-propelled windrower
operator’s manual.
A
D
B
C