Step 13. Set Knife Speed - MacDon M100 Unloading And Assembly Instructions

STEP 13. SET KNIFE SPEED

The knife speed is manually set by making
adjustments to the knife drive pump and has
been pre-set at the factory.
performance, adjust the knife speed according
to the header being used.
table.
NOTE
The knife speed should stay within the
range specified for each header.
HEADER
DESCRIPTION
TYPE SIZE
Draper DK 15
Draper DK 20 & 25
Draper DK 30
Draper DK 35
Draper SK 20 & 25
Draper SK 30
Draper SK 35
Grass Seed All
Auger A40D
All
Auger A30D
Auger A30S All
RPM = speed of wobble box pulley.
SPM = strokes per minute of knife (RPM x 2).
a. Determine the knife speed as follows if the
machine is not equipped with the optional
module:
CAUTION
Check to be sure all bystanders have cleared
the area.
1. Run engine at 2600 rpm with the header
drive engaged and ISC off (see CDM
Programming).
2. Check wobble box pulley speed with a hand-
held tachometer.
Form # 169390
UNLOADING AND ASSEMBLY
For optimum
See the following
KNIFE SPEED
MINIMUM MAXIMUM
RPM SPM RPM
750 1500 950
700 1400 850
800
700
600 1200
750
700
550 1100
700 1400 975
775 1550 925
625 1250 775
3. Multiply the rpm reading by two for the knife
speed in strokes per minute.
b. Determine the knife speed as follows if the
machine is equipped with the optional module:
1. Run engine at 2600 rpm with the header
drive engaged and ISC off (see CDM
Programming).
SPM
1900
1700
1600
1400
2. Press SELECTOR button on the GSL until
1500
the CDM displays the knife speed in SPM.
c. If required, adjust knife speed as follows:
1400
1950
Stop engine and remove key from ignition
1850
before leaving operator's seat for any
1550
reason. A child or even a pet could engage
an idling machine.
1. Shutdown engine and open engine hood.
2. Loosen jam-nut (A).
34
DISPLAY SELECTOR
FOR UPPER LINE
DANGER
A
B
(continued next page)
Model Year - 2010
DISPLAY