MacDon A40-D Pull-Type - Manual (Page 70)

SECTION 6 OPERATION
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Revision F
6.17.2 Auger Speed
Auger speed must be high enough to carry crop
into the conditioner, and yet not throw it out.
In light crops, a lower throttle setting on the
tractor/windrower will slow down the
header/mower conditioner operating speed, and
help to prevent carryover.
6.17.2.1 Auger Speed: A30-D
The A30 auger speed is fixed to the engine rpm,
and an optional 19 tooth drive sprocket provides
lower auger speeds.
Refer to Section 5 SPECIFICATIONS for
available auger 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 auger drive chain (A). Refer to Section
7.11 AUGER AND AUGER DRIVE: A30-D.
b. Remove three bolts (B) attaching sprocket to
pulley, and remove sprocket.
c. Attach applicable sprocket to pulley with three
bolts, and torque to 75 ft·lbf (102 N·m).
d. Replace auger drive chain (A). Refer to Section
7.11 AUGER AND AUGER DRIVE: A30-D.
6.17.2.2 Auger Speed: A40-D
The A40-D auger header features a hydraulic
direct drive auger with operating speed range of
230 to 320 rpm, and is controlled from the
Operator’s station on the self-propelled
windrower.
Refer to your self-propelled windrower
operator’s manual.
A30-D
A
B