214683 538 Revision A
5.16.8 Replacing Reel Speed Sensor
The reel speed sensors (and the procedures for replacing them) vary with the combine model.
Replacing AGCO (Challenger, Gleaner, and Massey Ferguson) Sensor
DANGER
To avoid bodily injury or death from unexpected start-up of machine, always stop engine and remove key
from ignition before leaving operator’s seat for any reason.
1. Shut down the engine, and remove the key from the ignition.
2. Remove the drive cover. Refer to Removing Reel Drive Cover, page 526.
Figure 5.302: Electrical Harness
3. Disconnect the electrical connector (A).
Figure 5.303: Speed Sensor
4. Cut the cable tie (A) securing the harness to the cover.
5. Remove two screws (B), sensor (C), and harness. If
necessary, bend the cover (D) to remove the harness.
6. Feed the wire of the new sensor behind the cover (D)
and through the chain case.
7. Locate the new sensor in support (E) and attach with
two screws (B).
8. Adjust the gap between the sensor disc (F) and the
sensor (C) to 0.5–1.5 mm (0.02–0.06 in.).
MAINTENANCE AND SERVICING