TM 10-1670-305-23&P
TROUBLESHOOTING PROCEDURES
0014 00
INITIAL SETUP INFORMATION
Maintenance Level
Materials
Maintainer
Model 452 Test Chamber Assembly or Model
453 Electronic Test Chamber Assembly.
TABLE 1. TROUBLESHOOTING
AUTOMATIC RIPCORD RELEASE, MODEL 451
Malfunction
Probable Cause
Corrective Action
1. Fails to cock with JUMP/OFF switch in
OFF position.
Defective mechanism.
Replace AR2.
2. Aneroid leak check indicator shows
incorrect altitude.
Defective aneroid.
Replace AR2.
3. JUMP/OFF switch binds or has jerky
motion.
Defective switch.
Replace JUMP/OFF
switch. (WP 0020 00)
4. Actuates at rates of fall below 65 ft/sec or
does not actuate above 85 ft/sec.
Defective or worn rate-of-
fall mechanism.
Replace AR2.
5. Actuates at incorrect altitude ( 300 feet
below 10,000 feet MSL; 500 feet at 10,000
feet or above).
Defective mechanism or
aneroid.
Replace AR2.
END OF WORK PACKAGE
0014 00-1/2 Blank
Change 1
