JLG G12-55A Operator Manual - Manual (Page 59)

Section 3 - Controls and Indicators
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3.5 REVERSE SENSOR SYSTEM (IF EQUIPPED)
Reverse Sensor System provides audible indication of objects to rear of unit while in
reverse gear.
• Alarm sounds signaling machine is placed in reverse gear.
Note: Reverse Sensing System detects objects larger than 36 square inches
(232.25 square centimeters) area and is functional when machine is moving in
reverse direction.
• No alarm when detection zone is clear of objects.
• Pulsing alarm sounds when an object is in range of Reverse Sensing System.
Alarm increases in frequency as object becomes closer.
• If alarm sounds at a frequency of eight pulses per second (8 Hz) an object is
detected within 5 feet (1.5 m). Stop reverse direction of machine by applying
service brake. Perform “Shut-Down Procedure” on page 4-4. Check and clear
area behind machine of objects before proceeding in a reverse direction.