214323 81 Revision A
Adjusting Side Draper Speed
The side drapers carry the cut crop to the adapter feed draper which then feeds it into the combine. The speed is
adjustable to suit crops and crop conditions.
Figure 3.85: Side Drapers
The side drapers (A) are driven by hydraulic motors and a
pump that is powered by the combine feeder house drive
through a gearbox on the adapter. Side draper speed is set
by using the flow control valve on the adapter which
regulates the flow to the draper hydraulic motors.
Figure 3.86: Flow Control Valve
The flow control (A) valve has settings from 0–9 on the
barrel that line up with a notch on the hydraulic
compartment cover to indicate the draper speed. The flow
control valve is factory-set to 6 which should be sufficient for
normal crop feeding.
To change the draper speed, shut down the combine and
rotate the flow control valve dial to adjust the control.
Refer to one of the following for recommended draper
speed settings:
• 3.6.2 Header Settings, page 42
• 3.6.3 Optimizing Header for Straight Combining Canola,
page 49
NOTE:
Insufficient draper speed may be caused by low relief
pressure. See your MacDon Dealer for checking and
adjusting the CA25 hydraulic relief pressure.
OPERATION
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