Komatsu 830E-AC Shop Manual page 871

Alarm 3 - Right Front Pressure High
Alarm 4 - Right Front Pressure Low
Troubleshoot Wiring to Right Front Suspension
These alarms indicate that the current being read by the payload meter is higher than 22ma or lower than 2ma.
The pressure sensor is designed to output 4-20ma over a pressure range of 4000 psi.
• Confirm 18v sensor supply at TB46-L in payload junction box.
• Confirm proper connection of signal circuit 39FC from right suspension connection box, TB41-B to payload
junction box TB46-G to payload meter connector R264, pin 20.
M20008 02/05 Payload Meter III M20-43