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SECOND ENGINE START (GPU START)
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TM-1-1510-223-MTF Maintenance Test Flight Manual Army Model RC-12
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BEFORE TAXIING - TM-1-1510-223-MTF0052
TM 1-1510-223-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
4.
TGT and N1 - Monitor (TGT 1000 maximum).
C
5.
Oil pressure - Check (60 PSI minimum).
6.
# 2 ENG START switch - OFF after TGT peaks.
7.
CONDITION lever - HIGH IDLE. Monitor TGT as
CONDITION lever is advanced.
CAUTION
Monitor oil temperature closely during ground operation with
propellers in FEATHER due to lack of air flow over oil cooler.
If necessary move propeller control out of FEATHER to keep
oil temperature within limits.
8.
PROP levers - FEATHER (if required).
9.
AC and DC GPU units - Disconnect (check aircraft
external  power  and  mission  external  power
annunciator extinguished).
10. PROP levers - Advance, then retard to FEATHER
detent.
11. POWER levers - GROUND FINE.
12. # 1 and # 2 INVERTER switches - ON.  Check
INVERTER annunciators extinguished.
13. GENERATOR switches - RESET, then ON.
2-39

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