TB 1-1730-229-30-3
(4) On hydraulic control panel, turn the POWER SWITCH to ON and push PRESS TO TEST
LIGHTS and verify that all indicator lights illuminate.
(5) Set MASTER SWITCH to OFF.
assessed using the following procedure and recorded in accordance with the checklist in paragraph
12, Table 2. The functional inspection shall be performed after the Technical Inspection. All findings
noted during the Technical Inspection that are required for safe operation of the AGPU shall be
corrected prior to performing the functional inspection. The AGPU must start, operate, and produce
hydraulic, pneumatic, and AC/DC power to perform a full functional inspection. If the AGPU is not
fully functional, the AGPU must be repaired prior to the start of the functional inspection.
a. PLACE THE AGPU IN OPERATION in accordance with Paragraph 2-3 of TM 55-1730-229-12.
(1) Listen to gas turbine engine (GTE) for abnormal sounds, knocks, or other signs of wear.
(2) Inspect and observe hydraulic output pressure gauge for a minimum reading of 450-600 psig.
If this minimum reading is not obtained, immediately shut down the AGPU and troubleshoot
IAW TM 55-1730-229-12 and TM 55-1730-229-34.
(3) Observe all meters for movement.
(4) Remove AGPU from operation IAW paragraph 2-12 of TM 55-1730-229-12 and TM 55-1730-
229-34.
(5) Inspect AGPU for oil, hydraulic, and fuel leaks.
(6) At the Hydraulic Control Panel, turn Power ON. Attempt to start the AGPU. The AGPU
should not start. If the AGPU does start, remove AGPU from operation and troubleshoot IAW
TM 55-1730-229-12 and TM 55-1730-229-34. Repeat this procedure of attempting to start
the AGPU with the load switch ON, one at a time, for DC Power, AC Power, and Pneumatic.
The AGPU should not start with any load switch turned ON.
(7) Start the AGPU and allow the AGPU to run for a minimum of 2 minutes. SHUT DOWN GTE
with the Emergency Shut Down to ensure its operation.
(8) Start the AGPU and allow the AGPU to run for a minimum of 5 minutes before the application
of any loads.
b. MONITOR CONTROL PANEL METERS/INDICATORS.
(1) Check hydraulic pressure on hydraulic control panel pressure gauge immediately after engine
start. Shut down engine if pressure reading is less than 450 psig.
(2) If EGT meter reads in yellow band, shut down the AGPU and troubleshoot IAW TM 55-1730-
229-12 and TM 55-1730-229-34.
(3) If LOW FUEL indicator illuminates, shutdown and refuel unless operations can be completed
in 30 minutes.
(4) If INLET FILTER BLOCKED indicator illuminates, shutdown and determine cause of problem;
check air intake louvered panel for obstructions.
(5) If COMPT/GEN HI TEMP indicator illuminates, shut down the AGPU and troubleshoot IAW
TM 55-1730-229-12 and TM 55-1730-229-34. Record lamp indications prior to setting
MASTER SWITCH to OFF.
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