MacDon 873 Combine Adapter - Manual (Page 19)

Form # 147069 Issue 09/06 17
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 as a starting point for optimum feeding capacity. Align the desired number at the
twelve o’clock position (dial no. 4 shown in inset below).
NOTE: If sufficient draper speed cannot be achieved, a possible cause is low relief pressure. See "Flow
Control Relief Pressure" in Maintenance/Service section.
CHECK HYDRAULIC OIL LEVEL
CHANGE OIL FILTER & GEARBOX OIL
A
D
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
DRAPER SPEED CONTROL
C