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TM 55-1520-240-23-7
8-17
TEST ENGINE OIL TEMPERATURE INDICATOR
(Continued)
8-17
1.
Set up test set (1) (TM 55-6695-200-15).
2.
Connect indicator (1) to test set.
3.
Perform scale error test (TM 55-6695-200-15),
at 28.5 vdc. Indicator readings shall be within
tolerance as follows:
INDICATOR TEST POINT ºC (ºF)
TEST SET AT NORMAL VOLTAGE (28.5) RANGE ºC (ºF)
-70 (-94)
-66 to 74º (-86.8 to -101.2º)
-30 (-22)
-27 to 33º (16.6 to -27.4º)
0 (32)
-2 to 2º (28.4 to 35.6º)
30 (86)
28 to 32º (82.4 to 89.6º)
80 (176)
78 to 82º (172.4 to 179.6º)
120 (248)
117 to 123º (242.6 to 253.4º)
150 (302)
146 to 154º (294.8 to 309.2º)
4.
Repeat step 2 at 22.5 vdc.
INDICATOR TEST POINT ºC (ºF)
TEST SET AT REDUCED VOLTAGE (22.5) RANGE ºC (ºF)
-70 (-94)
-67 to -73º (-88.6 to -99.4º)
-30 (-22)
-27 to 33º (-16.6 to -27.4º)
0 (32)
-2 to 2º (28.4 to 35.6º)
30 (86)
28 to 32º (82.4 to 89.6º)
80 (176)
78 to 82º (172.4 to 179.6º)
120 (248)
117 to 123º (242.6 to 253.4º)
150 (302)
147 to 155º (296.6 to 307.4º)
INSPECT
5.
Disconnect indicator (1) from test set.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
8-55
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