TM 55-2840-231-23
1-68. Engine Operating Procedure - Continued
LOCATION/lTEM
REMARKS
ACTION
2. TEST STAND/
STARTING
The following operating procedures apply
when the engine is installed on the test
stand.
Prepare the test stand for
operation as outlined in
TM 55-4920-328-13.
Insure that fuel and lubricating
oil are available at the engine
fuel and oil inlet ports.
Place N1 throttle lever to
zero degree position as
indicated on the throttle
position indicator.
Place governor lever to
minimum position.
Abort the start if any of the
following conditions occur:
• Time from starter ON to idle
speed exceeds one minute.
Investigate and correct cause
before attempting another start.
• Engine oil pressure does not
start to increase by the time gas
producer speed (Nl) reaches
20%. speed. Investigate and
correct cause before attempting
another start.
• NO indication of power turbine
rotor speed (N2) by the time gas
producer speed (N1) reaches
30% speed. Investigate and
correct cause if malfunction was
of test stand origin. Reject engine
if malfunction was of engine
origin,
1-144
Change 11
