TM 10-1670-305-23&P
0015 00-2
TROUBLESHOOTING PROCEDURES - CONT
0015 00
INITIAL SETUP INFORMATION - CONT
TABLE 1. TROUBLESHOOTING (CONT)
TEST CHAMBER ASSEMBLY, MODEL 452
Malfunction
Probable Cause
Corrective Action
a. Vibrator not operating.
a. Check electrical connection
to altimeter.
6. Altimeter pointer shows
jerky motion when displaying
falling altitude.
b. Damaged altimeter
vibrator.
b. Replace altimeter
(WP 0021 00).
7. Altimeter does not work.
a. Damaged altimeter.
a. Replace altimeter
(WP 0021 00).
TABLE 2. TROUBLESHOOTING
ELECTRONIC TEST CHAMBER ASSEMBLY, MODEL 453
Malfunction
Probable Cause
Corrective Action
a. Power cord not
plugged in.
a. Plug power cord into 110
VAC, 50/60 Hz outlet.
1. Unit fails to operate.
b. Blown fuse.
b. Replace fuse.
2. Fan fails to spin after
repeated attempts.
a. Vacuum
pump/compressor not
plugged in.
a. Plug vacuum
pump/compressor into control
assembly (c).
b. Worn or damaged
vacuum
pump/compressor.
b. Replace vacuum
pump/compressor (WP 0022
00)
3. Displays garbled or non-
functional.
a. Damaged control
assembly.
a. Replace control assembly
(WP 0022 00).
4. Displays will not reset.
Piston rod location
incorrect.
Implement reset procedure
(WP 0010 00).
a. Electrical connector
not plugged in.
a. Plug electrical connector
into control assembly.
5. Panel indicators, controls
or electric interlocks do not
operate as described.
b.
Damaged control
assembly.
b. Replace control assembly
(WP 0022 00).
