Troubleshooting: Alarms 81
TROUBLESHOOTING
Maximum
Pressure Alarm
•Clogged or
restricted pump
outlet supply lines
• Check for restrictions or blockages in outlet supply
lines. Flush the injection system to clear clogs and
residue buildup.
•Tubing or
plumbing size
restriction
• Verify the proper size of injection outlet tubing is used
between the point of injection and pump outlet.
•Faulty PSI
transducer
• Hand valve closed
• Check hand valves are open and allow flow from the
injection pump outlet port.
•Low injection
pressure
Pressure Sensor
Alarm
•Boom pressure
transducer not
connected
• If installed, check that the boom pressure transducer
is installed and properly connected.
•Faulty boom
pressure
transducer
• Replace boom pressure transducer.
Motor/Encoder
Alarm
•No power to
pump motor
• Verify that the high current LED on the injection pump
node is lit.
•Pump motor or
encoder issue
• Check motor connections. If these connections
appear secure, return pump to a local Raven dealer for
service.
HC Power Alarm
• Injection node not
connected to high
current power
• Verify high current breaker is not tripped.
• Verify battery connections.
Zero Speed Alarm
• Faulty cabling,
connection or
speed sensor.
• Verify speed sensor and signal. Refer to the field
computer operation manual for information on testing
speed and flow cabling and troubleshooting the
speed sensor.
Low Limit Alarm
• Implement speed
or width is
insufficient to
maintain pump
rate and the pump
“low limit” rate has
become active
• Increase vehicle speed.
• The pump will maintain the programmed low limit
rate. If this rate is the desired lowest injection rate, no
action is required. If the current field operation
requires a lower rate of injection, reduce the
programmed low limit setting to allow the pump to
reduce the rate of injection. Refer to the console or
field computer operation manual for additional
information on the low limit feature.
Error Description Possible Cause Solution
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