TM 10-1670-305-23&P
0013 00-1
TROUBLESHOOTING PROCEDURES
0013 00
GENERAL INFORMATION
SCOPE OF TASK
Work Package 0014 00 covers troubleshooting procedures for the Model 451. Work Package
0015 00 covers troubleshooting procedures for Model 452 and Model 453. Each work package
basically refers to procedures in work packages 0008 00, 0009 00, or 0010 00.
MALFUNCTION/SYMPTOM INDEX, MODEL 451
TROUBLESHOOTING PROCEDURE
1. AR2 fails to cock with JUMP/OFF Switch in OFF
position.
WP 0014
2. Aneroid leak check indicator shows incorrect altitude.
WP 0014
3. JUMP/OFF switch binds or has jerky motion.
WP 0014
4. Actuates at rates of fall below 65 ft/sec or does not
actuate above 85 ft/sec.
WP 0014
5. Actuates at incorrect altitude.
WP 0014
MALFUNCTION/SYMPTOM INDEX, MODEL 452
TROUBLESHOOTING
PROCEDURE
1. Unit fails to operate.
WP 0015
2. Either fan fails to spin after repeated attempts.
WP 0015
3. Altitude chamber does not gain altitude.
WP 0015
4. Fan is spinning but compressor does not cock AR2 in
test chamber.
WP 0015
5. Pressure gage fails to operate properly and
compressor is good.
WP 0015
6. Altimeter pointer shows jerky motion when displaying
falling altitude.
WP 0015
7. Altimeter does not work.
WP 0015
