Operation – MacDon 872 Combine Adapter User Manual
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OPERATION
BREAK-IN PERIOD
1. Run drapers slowly for 5 minutes to fill hydraulic
lines, then check oil level at (A). Maintain level
between LOW and FULL when oil is cold.
NOTE: Breather screw on cap (A) has been
tightened for shipping. Loosen screw before
operating adapter.
NOTE: When ambient temperatures are above
35º C (95º F), maintain oil level in the low portion
of the range to prevent overflow at breather under
operating temperatures.
2. Change the hydraulic oil filter (D) on combine
adapter after 50 hours operation and every 250
hours thereafter.
3. Change gearbox oil after 50 hours operation and
every 1000 hours or 3 years thereafter.
See "Break-In Period" in Header Operator's Manual for further information on break-in maintenance.
DRAPER SPEED CONTROL
Speed of the header drapers is adjusted at the flow control on the combine adapter. Rotate flow control knob
(C) to a number suited to the crop. The higher the number, the faster the draper speed. The settings in the
chart are recommended for optimum feeding capacity.
NOTE: If sufficient draper speed cannot be achieved, a possible cause is low relief pressure. See "Flow
Control Relief Pressure" in Maintenance/Service section.
Needle Valve: When laying a windrow, turn needle valve control (B) fully open to stop flow to the feed draper
and drum.
NOTE: Valve must be fully open to prevent rotation of feed draper and
drum when oil is cold. It may also be necessary to secure drum to
prevent rotation.
For a complete list of steps to convert to windrowing mode, see “End
Delivery” in the Operation section of your Header Operator’s Manual.
When straight cutting and experiencing plugging at the rear of the
feeder deck, turn control (B) to slow feed draper and drum.
NOTE: Slowing feed draper and drum too much will cause feeding
problems. Turn needle valve control (B) in 1/16 turn increments.
CHECK HYDRAULIC OIL LEVEL
CHANGE OIL FILTER & GEARBOX OIL
A
D
DRAPER SPEED CONTROL
C
B
CROP
DIAL
NO.
Barley
3
Beans, Edible
4
Canola
3
Flax
5
Lentils
3
Milo
3
Oats
3
Peas
3
Rice
5
Safflowers
4
Soybeans
5
Sunflowers
4
Wheat
3