CSP-HMI-3
MD Helicopters, Inc
.
MAINTENANCE MANUAL
Page 510
Revision 12
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.
1). Refer to applicable Rolls Royce
Allison Operation and Mainte
nance Manual for possible mainte
nance actions, if TOT gauge
indicates 30
°
lower than tester.
(8). Verify FADEC maintenance lap-top
terminal indicates TOT within
±
5
°
C. If
FADEC maintenance lap-top terminal
is not within tolerance (
±
5
°
C), perform
Part III of this service bulletin.
(9). Turn off aircraft electrical power.
(10). Set source switch to off position.
(11). Disconnect tester from TC3002.
(12). Reconnect engine thermocouple wire
harness to TC3002 terminal block.
(13). Record compliance to the Service
Bulletin in the Compliance Record
section of the helicopter Log Book.
Table 506. TOT System Test (600N)
Tester Setting (
°
C)
Indicator Reading (
°
C)
625
°
625
°
±
10
°
680
°
680
°
±
10
°
727
°
727
°
±
10
°
765
°
765
°
±
10
°
TOT INDICATOR
(600N)
21
24
88-773-2
CHROMEL
ALUMEL
P5
WHITE
GREEN
K
WHITE
GREEN
P1202J
1-321897-0 CHROMEL TERMINAL
LUG FOR NUMBER 8 STUD
(NON-MAGNETIC)) (3 PLCS)
1-321898-0 ALUMEL
TERMINAL LUG FOR
NUMBER 10 STUD
(MAGNETIC) (3 PLCS)
DISCONNECT ENGINE
THERMOCOUPLE LEADS
FROM STUDS ON TC3002.
CONNECT TESTER HERE.
010-2020-055C
SOCKET
010-2020-055A
SOCKET
M39029/88-491
SOCKET
M39029/88-492
SOCKET
M39029/87-479
PIN
M39029/87-480
PIN
TC300
TC3002
WHITE
GREEN
ENGINE
CONTROL
UNIT
P1
78
79
P3J
CHROMEL
ALUMEL
N
M39029/88-484
SOCKET
E1141B2
0
ECU017A22
M39029/88-483
SOCKET
TC3002
GG
HH
M39029/87-476
PIN
M39029/87-475
PIN
CHROMEL
ALUMEL
+
-
TYPE K
THERMOCOUPLE
SIMULATOR
CHROMEL
ALUMEL
ENGINE-MOUNTED TYPE K
THERMOCOUPLE HARNESS
(DISCONNECTED)
RRA SUPPLIED
HARNESS
Figure 504. TOT Wire Harness Termination Verification (600N)
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