TM 9-6115-729-24
FIELD LEVEL TROUBLESHOOTING
TACTICAL QUIET GENERATOR 100 kW, 50/60 Hz MEP-807A/PU-807A
ELECTRONIC TECHNICIAN (ET) TROUBLESHOOTING SOFTWARE INSTALLATION
INTRODUCTION
Before using the Electronic Technician (ET) tool for fault isolation, make note and record all of the fault codes
available on the GSC and DVR. Also, note and record any fault lamps that are lit on the GSC and the alarm
The failure analysis can begin with a single fault code indication. Because of extensive self-testing capability, a
single failure will often generate multiple fault codes. (e.g. a failure of a power supply will generate a failure code for
all of the sensors powered up by that power supply). It may be necessary to read through all of the associated fault
isolation procedures prior to starting in order to assess the fault location.
The voltages and currents in the 100 kW TQG are dangerous and capable of causing death instantaneously. The
engine and generator set are heavy and represent enormous mechanical power. Refer to the WARNING
SUMMARY before attempting to troubleshoot system. The following warnings, cautions, and notes should be read
and followed during all attempts at troubleshooting.
NOTE
100/200 kW TQG Cat ET software/program is for use on the 100/200 kW TQGs only. Loading
100/200 kW TQG Cat ET software will overwrite existing Cat ET software/program. If commercial
Cat ET software is to be reinstalled, record the licensing data prior to installing 100/200 kW TQG
Cat ET software/program. The licensing data must be reloaded when reinstalling the original
(previous) Cat ET software/program.
WARNING
Metal jewelry will conduct electricity. All jewelry can become entangled in generator set
components. Remove all jewelry when working on generator set. Failure to comply can cause
injury or death to personnel by electrocution.
High voltage is produced when the generator set is in operation. Never attempt to start or
maintain the generator set unless it is properly grounded. Failure to comply can cause injury or
death to personnel.
High voltage is produced when the generator set is in operation. Never attempt to start or
maintain the generator set unless it is properly grounded. Failure to comply can cause injury or
death to personnel.
DC voltages are present at generator set electrical components even with generator set shut
down. Avoid shorting any positive with ground/negative. Failure to comply can cause injury to
personnel and damage to equipment.
WARNING
Dangerously high voltage can exist across current transformer (CT) output with engine running.
CT could explode if disconnected from load with engine running. Do not disconnect CT with
generator rotating. Failure to comply can cause serious injury or death to personnel.
0012-1
