MacDon CA25 OM - Manual (Page 176)

SECTION 8. MAINTENANCE AND SERVICING
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174
Revision B
8.12.8 Reel Speed Sensor
WARNING
Stop combine engine, and remove key
before making adjustments to machine. A
child or even a pet could engage the drive.
a. Lower header and reel, shut down combine,
and remove key from ignition.
b. Remove reel drive cover:
1. Double Reel: Remove six screws (A), and
remove upper cover (B).
2. Single Reel High Torque: Remove four
screws (C), and remove cover (D).
8.12.8.1 John Deere
a. Maintain a 1/8 in. (3 mm) gap between sensor
disc (G) and sensor (H). Adjust with nuts (F) as
required.
b. Replace sensor as follows:
1. Disconnect connector (E).
2. Remove top nut (F), and remove sensor
(H).
3. Remove top nut from new sensor (H), and
locate in support.
4. Secure with top nut (F).
5. Adjust gap between sensor disc (G) and
sensor (H) to 1/8 in. (3 mm).
6. Connect to harness (E) to sensor.
IMPORTANT
Ensure sensor electrical harness
does NOT contact chain or
sprocket.
C
D
B
A
E
H
G
F