TM 55-1520-240-23-7
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TEST ENGINE OIL PRESSURE INDICATOR
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INITIAL SETUP
Applicable Configurations:
All
Tools:
Electrical Repairer’s Tool Kit, NSN 5180-00-323-4915
Test Set, Synchro TTU-23/E
Multimeter
AC Power Supply, 115 Volt 400 Hz
Materials:
None
Personnel Required:
Aircraft Electrician
Inspector
References:
TM 1-1500-204-23
TM 11-6625-2843-14
Equipment Condition:
Off Helicopter Task
1.
Set up test set (TM 11-6625-2843-14).
2.
Connect indicator (1) to test set.
3.
Check indicator (1) electrical zero (TM
11-6625-2843-14). Tip of indicator pointer shall
be within 0.010 inch of electrical zero index mark
(0.31 inch long mark at 100 graduation).
INSPECT
4.
Check indicator calibration (TM
11-6625-2843-14) using listed readings.
NO BREAK - WORK HARDER
TRANSMITTER
INDICATOR (PSI)
TEST SET INDICATOR
ANGLE (DEGREES)
0
0 to 5
40
67 to 77
80
139 to 149
120
209 to 233
160
281 to 295
200
353 to 360
INSPECT
5.
Disconnect indicator (1) from test set.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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