General Information

The process of forming, wrapping, and ejecting a round module involves a number of major components that must operate in the proper sequence. Each component must be operating at the proper speed or be in the correct position before the next component in the sequence can start operating.

The machine is equipped with the following types of sensors to provide signals and operating data to the respective control unit. (See SENSOR LOCATION DIAGRAMS in this section.)

• Speed sensors
• Position sensors
• Pressure transducers
• Infrared (IR) sensors

Each control unit is programmed with a set of diagnostic test codes (DTCs). When out-of-limit or abnormal parameters are detected, applicable DTCs and active alarm messages are sent to the armrest display unit (ADU).

In addition to active alarm messages, diagnostic readings screens can be accessed through the diagnostics and calibration tab on the home page screen of the ADU. The diagnostic readings screens provide detailed operating information pertaining to the selected subsystem. This information includes switch settings, sensor output data, and operating parameter settings. (See DIAGNOSTICS AND CALIBRATION SCREENS in the CommandCenter Display Screens section.)

Sensor Alignment and Adjustment

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Speed Sensor Adjustment

A - Nut

B - Sensor

C - Gap

If speed sensors readings are out of range or fluctuate, check gap and alignment and adjust as follows:

NOTE: A standard tie-band is approximately 1 mm thick and can be used to set sensor gap.

Speed sensor adjustment. Loosen nuts (A) and adjust position of sensor (B) to set gap (C) to approximately 1 mm (0.039 in.). Make sure that sensor tip is centered over width of gear or tone wheel.

Fan speed sensor adjustment. Loosen lock nut and screw fan speed sensor in until it contacts fan rotor. Unscrew sensor two full turns and tighten lock nut.

Sensor Location Diagrams

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Sensor Locations-Left Side

A - Upper Accumulator Sensor (Receiver)

B - Upper RMB Speed Sensor

C - Lower RMB Speed Sensor

D - Rear BOH Sensor (Receiver)

E - Wrap Speed Sensor

F - Front BOH Sensor (Receiver)

G - Beater Roller Speed Sensor

H - Feeder Belt Speed Sensor

I - Meter Roller Speed Sensor

J - Left-hand Fan Speed Sensor

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Sensor Locations-Right Side

A - Lower Accumulator Sensor (Emitter) (3 used)

B - Upper Accumulator Sensor

C - Lower Accumulator Sensor (Receiver) (3 used)

D - Right-hand Fan Speed Sensor

E - Front BOH Sensor (Emitter)

F - Rear BOH Sensor (Emitter)