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TM 9-2815-220-24
ENGINE RUN-IN
0044 00
RUN-IN (Continued)
12. Perform run-in test in accordance with the following test schedule.
a. Set manifold pressure manometers and entrance air inclinometer to local uncorrected wet
barometer reading, as applicable.
b. Check cylinders for firing by observing exhaust gas temperature.
c. Enter time and rpm at start of each period.
d. Complete readings as soon as engine temperatures have stabilized.
e. Plot oil consumption every ten minutes at 2400 rpm, full load, during run number 8.
f. The following limits must not be exceeded:
- Inlet air temperature of 120 F (49 C).
- Exhaust gas temperature (measured at each cylinder and with turbocharger inlet air flow
restriction less than 1.0 inch of mercury) of 1250 F (677 C).
- Oil pressure limits. Measure during test with oil temperature of 140 to 250 F
(60 to 121 C) at and/or adjacent to the pressure sending unit.
High oil pressure should not be more than 70 psi (482.6 kPa) nor less than 40 psi
(275.8 kPa). Check high oil pressure when the engine is operating at 2400 rpm.
Low oil pressure should not be less than 15 psi (103.42 kPa). Check when engine is idling.
TEST SCHEDULE
Run
Time
Speed
Net Observed Torque
Number
(Minutes)
(rpm)
foot-pound
Nm
1
10
700
No Load
No Load
2
15
1000
85
115
3
15
1400
440
597
4
20
1800
837
1135
5
20
2200
1024
1388
6
20
2400
1092
1481
7
30
2400
1202
1630
8
30
2400
*FR-FL
*FR-FL
9
675-725
Check low idle rpm. Adjust for
smooth low idle if necessary.
10
675-725
Inspect for oil and fuel leaks.
* Full Rack-Full Load
WP 0044 00-10

 


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