JLG DVSP Series Service Manual - Manual (Page 85)

SECTION 4 - CONTROL COMPONENTS
3121136 – JLG Lift – 4-27
Transducer Sensor Check
Perform the following daily Pre-Start Inspection to check if
each transducer sensor is working properly.
1. Power up machine by setting the Power Selector
(Key) Switch to Ground Control Mode.
2. Raise the platform approximately four (4) to five (5)
feet.
3. Hold an object about the size of 8-1/2 x 11 inches
directly under one of the sensors. The OSS Control
Module (RED) LED will flash if the sensor is working
properly.
4. Remove object, allow the LED to stop flashing and
check the next sensor, repeat this for all six (6) sen-
sors.
The Ground Control Module can also display the following
sensor detection information when in Level 2 password Ser-
vice and Maintenance Settings mode.
OSS Sensor
Displays current Obstruction Sensor System status (Detec-
tion - YES/NO). Also if an object is detected, the sensor(s)
detecting the object and distance the object is from the sen-
sor is displayed.
Transducer Sensor Check
1. Electronic Module LED Indicator (a)
2. Detection Zone
3. Place a pad of paper or similar size object, 6 to
12 in. (15 to 30cm) individually beneath each
transducer to check detection.
Note: (a) The LED Indicator will flash when an object is
detected at each sensor. Remove object and allow
the LED to stop flashing before testing next sensor.
1
2
3
OSS Sensor LCD Display Mode
1. Detection Indicator - Yes/No 3. Object distance from sensor
2. Sensor numbers 4. Signal strength
Note: This screen can be viewed while another person performs
the transducer sensor check, see Section 4.9.
Transducer Sensor Locations
1. Transducer Sensors #1 through #6
2. Underside of DVSP Platform
1
2
3
4
#5
#3
#1 #2
#4
#6
2
1