MacDon HC10 for D-Series - Manual (Page 90)

OPERATION
To check roll timing, follow these steps:
1. Lower header to ground, shut down windrower and
remove key.
2. Remove wing-nut (A), and remove tool (B) from panel
at right-hand end of conditioner.
Figure 4.34
3. From the rear of the conditioner, position tool at centre
of rolls as shown above right and manually turn rolls
to limits of tool. Rolls will engage the tool if timing is
correct.
4. Manually turn rolls to release tool.
WARNING
Remove tool from rolls and return it to storage
location before starting machine.
5. Replace tool on conditioner with washer and wing-nut.
6. If roll timing is correct, skip remaining steps. If roll
timing needs adjusting, continue to the next step.
Figure 4.35
A - Start Position B - Gauge Position
7. Loosen the four bolts (A) on one of the small
timing gears.
8. Insert tool as described above and allow rolls to adjust
to tool.
9. Tighten bolts on timing gear.
10. Return tool to storage position.
Figure 4.36
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Rev. D