TM-9-2320-283-20-1
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3
DECEMBER 1983
TM-9-2320-283-20-1 - Page 466 of 926
TM 9-2320-283-20-1
STE/ICE TROUBLESHOOTING.
2-16.
STE/ICE DESCRIPTION AND OPERATION (Continued).
The transducers should be kept clean, free of dirt and grease, and handled with reasonable care.
NOTE
Transducers for measuring engine RPM (pulse tachometer) and fuel pressure are
permanently
installed
on
the M915A1 truck.
The following material is for reference only or when trouble- shooting a faulty
transducer.
(2)
Pressure Transducers.
The pressure
transducers have a
small breather hole on
the side of the housing
which should be kept unplugged.
Do not
use high pressure.
(3)
Pulse Tachometer.
Make sure that the slotted hole in the engine tachometer drive shaft is clear and not hard
packed before installing the pulse tachometer.
(4)
Threaded Adapters.
Observe threaded fittings carefully to avoid engaging straight threads with pipe threads.
Each measurement device (transducer) in the transducer kit has its own identification resistor.
The VTM
uses
this identification resistor to
check that
the correct transducer is connected
for the measurement being made.
If the
correct transducer is not connected, error code E002 will be displayed.
2-341
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