TM 9-4110-258-13
CHAPTER 5
DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
SECTION I DIRECT SUPPORTTROUBLESHOOTING INSTRUCTIONS
5.1
TROUBLESHOOTING.
The following procedures are listed in order of the most probable malfunctions. Each malfunction is followed by test or
inspection procedures in logical order to isolate and identify the fault and actions required to correct it. This section
cannot list all the possible malfunctions that may occur with the equipment. If a malfunction occurs that is not listed or
action listed do not correct a malfunction, notify your supervisor.
a. Pressure Gauge (High) Indicates Above Operating Range.
INSTALL SERVICE MANIFOLD (PARA 5.7) AND
OPERATE REFRIGERATION UNIT (PARA 2.5). DOES
SERVICE MANIFOLD GAUGE READING MATCH
PRESSURE GAUGE (HIGH) READING ?
(PARA 5.15)
(PARA 5.13)
b. Compressor Operates For Short Period Then Stops.
OPERATE REFRIGERATION UNIT (PARA 2.5) AND
OBSERVE PRESSURE GAUGE (LOW). DOES PRESSURE
DROP RAPIDLY ?
(PARA 2.25)
(PARA 5.13)
5-1
