ARMY TM 9-1240-379-34
MARINE CORPS TM 04332A-34
DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section I. TROUBLESHOOTING
2 - 1 . TROUBLESHOOTING INFORMATION.
manual cannot list all malfunctions that may
a. The symptom index can be used as a
occur, nor all tests or inspections and cor-
quick guide to troubleshooting. Common
rective actions. If the malfunction is not
malfunctions are listed in alphabetical order
listed, or if the malfunction still exists after
with a page number reference to the
all listed corrective actions have been per-
troubleshooting table where a test or inspec-
formed, notify general support maintenance.
tion and corrective action are provided.
b. Table 2-1 lists the malfunction, the
test or inspection indicating the malfunction,
and the corrective action needed. This
SYMPTOM INDEX
Troubleshooting
Procedure
(Page No.)
DAYLIGHT BODY ASSEMBLY
Poor vision through daylight body assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Poor or no illumination of reticle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 2-2
ELBOW ASSEMBLY
Poor vision through image intensifier elbow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
No night channel image, low brilliance of night image, or night
image flickers or moves.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Poor or no illumination of night reticle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . 2-5
INFRARED BODY ASSEMBLY
Poor vision through infrared body assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Poor or no illumination of night reticle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . 2-3
TANK PERISCOPE (ALL MODELS)
Loss of boresight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . 2-2
