TM 55-1520-240-23-7
8-57
MISCELLANEOUS INSTRUMENTS
8-57
TRANSMISSION OIL PRESSURE INDICATING AND
CAUTION SYSTEM
Description
This system consists of an oil pressure indicating
system and an oil pressure caution system for the
transmission main and auxiliary oil lubrication systems.
The main lube system has both indicating and caution
light monitoring circuits. The auxiliary system has only
caution light monitoring circuits.
NO BREAK - WORK HARDER
The indicating system includes the transmission oil
pressure selector switch and indicator, clamp mounted
on center instrument panel, and five transducers, one
for each transmission. The indicating system is powered
by 115 vac.
NO BREAK - WORK HARDER
The indicating system senses pressure in the five
transmissions and indicates the lowest of the five
pressures or the pressure at the selected transmission.
The transducers that provide signals to the indicator
are linear variable differential transducers with internal
electronic circuitry.
NO BREAK - WORK HARDER
The test circuit is limited to checking of the indicator
system. Operating the selector switch to TEST causes
the indicator pointer to move to the low end of the scale.
8-156
