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4) MASTER SWITCH
LED lamp
OFF master switch after lamp off
OFF
5) SERVICE METER
HOURS
6) MCU/ECM/TCU CONNECTOR
(3) TCU communicates the transmission data with an adapter cable.
(1) This switch is used to shut off the entire electrical system.
(2)
: The battery remains connected to the electrical system.
: The battery is disconnected from the electrical system.
OFF master switch after LED lamp off.
Never turn the master switch to O (OFF) with the engine
running. Engine and electrical system damage could re-
sult.
(1) This meter shows the total operation hours of the machine.
(2) Always ensure the operating condition of the meter during the ma-
chine operation. Inspect and service the machine based on hours
as indicated in chapter 6, maintenance.
(1) MCU communicates the machine data with laptop computers
through RS232 service socket.
(2) ECM communicates the engine data with cummins INSITE adapter
through J1939 service socket.
ECM fault code check
ECM program change
Engine data monitoring & test
3-72
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