MacDon PW8, Operator'S Manual

Page: 268 / 304

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Revision A
5.10 Draper Speed Sensor
The draper speed sensor is mounted to a support on the right side of the header. It reads the speed of the driven
roller on the rear deck. This section does
NOT apply to Case IH and New Holland combines. For Case IH and New
Holland combines, refer to your combine operator
’
s manual for further information.
5.10.1 Checking Draper Speed Sensor Position
The draper speed sensor position is factory-set, but it may require adjustment if problems occur with the draper
speed system or when replacing sensor components. Check the draper speed sensor position prior to making any
adjustments.
DANGER
To avoid bodily injury or death from unexpected startup of machine, always stop engine and remove key
from ignition before leaving operator
’
s seat for any reason.
1. Stop the engine, and remove the key from the ignition.
Figure 5.202: Disc Clearance
2. Check clearance (A) between speed sensor and disc.
The recommended clearance is 3 mm (1/8 in.). If
clearance requires adjustment, refer to
5.10.2 Adjusting
Draper Speed Sensor, page 255 .
Figure 5.203: Sensor and Disc Alignment
3. Check vertical alignment (A) of sensor (B) and sensor
disc (C). If required, adjust support (D) inboard or
outboard to adjust vertical alignment.
MAINTENANCE AND SERVICING