MD Helicopters 369-500, Maintenance Instructions Manual

Page: 188 / 722

CSP-HMI-3
MD Helicopters, Inc
.
MAINTENANCE MANUAL
[ Main Menu ]
[ HMI − 3 Book TOC ]
[ Chapter 95 TOC ]
Page 104
Revision 13
95-30-00
The information disclosed herein is proprietary to MD Helicopters, Inc.
Neither this document nor any part hereof may be reproduced or transferred to
other documents or used or disclosed to others for manufacturing or any other
purpose except as specifically authorized in writing by MD Helicopters, Inc.
Copyright
©
1999 − 2016 by MD Helicopters, Inc.
Table 108. Analog Indicator (Torque, TOT) Troubleshooting (Cont.)
Symptom Corrective Action Probable Trouble
TOT
Indicator inoperative
Defective indicator Remove and replace indicator.
Loose wiring, disconnected
connector or defective ground
terminal
Check continuity through wiring and
connector. Repair as necessary.
Defective wiring Repair as necessary.
Defective thermocouple Replace thermocouple.
Incorrect reading Defective indicator Remove and replace indicator.
10. Quad Digital Indicator (Torque, TOT, OAT, N
1
)
Table 109. Quad Digital Indicator (Torque, TOT, OAT, N
1
) Troubleshooting
Symptom Probable Trouble Corrective Action
Torque
Indicator inoperative
Defective oil pressure transducer Replace transducer
Instrument circuit breaker CB101
open
Reset circuit breaker CB101.
Loose wiring, disconnected
connector or defective ground
terminal
Check continuity through wiring and
connector. Repair as necessary.
Incorrect reading Defective indicator Remove and replace indicator.
TOT
Indicator inoperative
Defective indicator Remove and replace indicator.
Loose wiring, disconnected
connector or defective ground
terminal
Check continuity through wiring and
connector. Repair as necessary.
Defective wiring Repair as necessary.
Defective thermocouple Replace thermocouple.
Incorrect reading Defective indicator Remove and replace indicator.
OAT
Indicator inoperative
Defective indicator Remove and replace indicator.
Loose wiring, disconnected
connector or defective ground
terminal
Check continuity through wiring and
connector. Repair as necessary.
Open circuit in OAT probe Remove and replace OAT probe.