MacDon R113 Operator's Manual page 172

3. Measure the length of tensioner spring (C);
dimension (D) should be set to 366 mm (14-3/8 in.).
4. Loosen nut (A).
5. To adjust the spring tension, turn adjuster nut (B)
clockwise to increase spring length (tension) or turn
adjuster nut (B) counterclockwise to decrease spring
length (relax).
6. Once correct spring measurement has been achieved,
hold adjuster nut (B) and tighten jam nut (A) against it.
7. Reconnect the speed sensor (B) to wiring harness (A).
NOTE:
The speed sensor orientation should be factory-set for
either the M1170 or M155E4 windrower and does not
require manual adjustment.
8. Close left driveshield. Refer to
Driveshields, page 63.
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MAINTENANCE AND SERVICING
3.7.2 Closing
160
B
C
Figure 4.120: Conditioner Drive
B
A
Figure 4.121: Speed Sensor
A
D
Revision A