Adjust PTO and Pickup Slip Clutch Alert Sensors (MegaWide™ HC2 Feed System Only)

The following procedure is not used on a 450M and 550M Baler with a Regular pickup.

Sensor face must align with the holes in the sprocket for proper operation. Increasing the gap between the sensor face and the sprocket helps improve detecting the holes in the sprocket.

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E83416-UN-08JUN17

E83491
E83491-UN-12JUN17

Main Rotor Sensor (Pickup) Shown

A - PTO Sensor

B - PTO Clutch Fins

C - Tone Wheel

Clearance between sensor (A) and PTO clutch fins (B) or wheel (C) must be within specification. A feeler gauge or washer of the same thickness can be useful in adjusting setting.
SensorClearance3—8 mm (0.118—0.315 in)


Verify Operation of Sensors

E83492
E83492-UN-12JUN17

PTO Sensor (540 rpm) Shown

E83493
E83493-UN-12JUN17

Main Rotor Sensor (Pickup) Shown

A - Clutch Fins

B - Tone Wheel

Use a speed readout to verify operation and adjustment of sensors. Access channel 016 on monitor-controller for PTO speed and channel 017 for pickup speed.

  1. Start tractor and operate tractor engine at a low idle. Engage PTO.

  2. Press and hold COUNTER key while turning monitor-controller ON.

  3. Continue to hold COUNTER key and press PLUS key until CH016 appears in digital display.

  4. Release COUNTER key and PTO speed are displayed. Speed readout must be stable and not vary by ± 5 rpm.

  5. Press and hold COUNTER key and press PLUS key until CH017 appears in digital display.

  6. Release COUNTER key and pickup drive speed are displayed. Speed must be stable and not vary by ± 5 rpm.


Adjusting PTO Sensor

E83494
E83494-UN-12JUN17

A - Sensor

B - Clutch Fins

C - Bracket

Adjust the face of the sensor (A) to the clutch fin (B) distance specified by bending the bracket (C) accordingly.


Adjusting Main Roll (Pickup) Roll Sensor

E83495
E83495-UN-12JUN17

Adjust the face of the sensor (A) to the sprocket (B) distance by bending the bracket (C).

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