TM 5-5420-226-20-1
Symptom-49
DETAILED
TROUBLESHOOTING
PROCEDURE
.T
SUPPORT
SYSTEM
- COMMUNICATIONS
(Continued)
Check if static is caused by generator.
\
Second
Technician
(Operators
Station)
l Stop engine.
First
Technician
(Top
Deck)
l Reconnect
rear
accessory
to bulkhead
harness
connectors
to left and
right
air cleaner
assemblies.
l Close top deck grille doors.
First
Technician
(Commanders
Sta;ion)
l Turn off radio set (TM 5-5420-226-10).
Second
Technician
(Operators
Station)
l Start engine.
First
Technician
(Commanders
Station)
l Turn on radio set (TM 5-5420-226-10).
l Listen for static in radio helmet.
Second
Technician
(Operators
Station)
l Press accelerator
pedal
for a few seconds
and
release.
Does static sound like a whining noise that
changes with engine speed?
n
-.
. ...-
\
---
ACCELERATOR
PEDAL
Turn off radio set
(TM 5-5420-226-10).
Stop engine.
Notify support maintenance
of EMI problem.
TA107229
4-540