TM 5-2420-230-24-2
Engine Run-in (Engine Dynamometer) (014-006)
B3.9 and B5.9 Series Engines
Page 14-18
Section 14 - Engine Testing - Group 14
To provide a load on the air compressor, connect an air tank
(2) to the compressor outlet; use steel tubing or a high-
temperature hose (1).
Install an air regulator (3) that can maintain tank air pres-
sure of 345 kPa to 517 kPa [50 psi to 75 psi] at both the
minimum and the maximum engine rpm.
Hose Temperature (Minimum):
260 C
[500 F]
Inspect the voltage rating on the starter motor before in-
stalling the electrical wiring.
Attach electrical wires to the starter motor and the batteries
if used, negative () cable last.
NOTE: If another method of starting the engine is used,
follow the manufacturer's instructions to make the neces-
sary connections.
Engine Run-in (Engine Dynamometer)
(014-006)
Test (014-006-012)
The engine run-in period allows the tester to detect as-
sembly errors and to make final adjustments needed for
performance that meets specifications.
NOTE: The amount of time specified for the following en-
gine run-in phases are minimums. Additional time can be
used, if desired, at each phase except engine idle periods.
Measurements from these indicators and gauges must be
observed closely during all phases of the engine run-in
period. Refer to the appropriate sections for specifications
and acceptable readings.
L-1316
