ENGINE AND ENGINE LUBRICATION SYSTEM
Refer to TM 5-3895-373-10 for engine starting and equipment operating procedures. Refer to paragraph 2.10 for general
information and for connecting/disconnecting STE/ICE-R test set. Shut down engine on completion per TM 5-3895-373-
10. Refer to paragraphs 1.14 through 1.17 for engine system operating principles.
ENGINE SPEED - STE/ICE-R TEST 10
DESCRIPTIONTEST PROCEDURES- Continued
Measures engine speed in the range of 50 to 5000 rpm
Turn ignition switch to start position and crank engine for
using pulse tachometer generator.
10 seconds per TM 5-3895-373-10.
DCA Test Pins: c and d
Observe displayed value. Displayed values are in rpm. If
.188.8.131.52 is displayed, engine speed is not
within test range. Expected display value is 100 rpm
Run confidence test per TM 9-4910-571-12&P.
Start engine per TM 5-3895-373-10.
POSSIBLE ERROR MESSAGES
Set throttle control to IDLE per TM 5-3895-373-10.
Repeat step 5. Expected display value is 500 to 850 rpm (650
rpm is nominal).
Set TEST SELECT switches to 10.
Set throttle control to MAX per TM 5-3895-373-10.
Set ENGINE CRANK switch on DCA housing to
10. Repeat step 5. Expected display value is 2640
TEST to prevent engine from starting.
+40 rpm (2650 rpm is nominal).
Press and release TEST button.
11. Shut down engine per TM 5-3895-373-10.
If STE/ICE-R reading does not approach expected value, check pulse tachometer generator per DCA diagnostics,
Cranking rpms will vary with temperature. At -22°F (-30C) cranking rpms may be as low as 80 rpm, minimum.