TM 55-1520-240-T
4-5.3 GAS PRODUCER CONTROL SYSTEM (N1) OPERATIONAL CHECK (Continued)
4-5.3
T A S K
R E S U L T
CHECK NO. 2 ENGINE GAS
PRODUCER CONTROL SYSTEM
13.
14.
15.
16.
17.
18.
19.
Check that ENGINE NO. 2 COND CONT
circuit breaker (11) is closed.
Check NO. 2 ENG N1 CONT capsule (12).
Open ENGINE NO. 2 COND CONT circuit
breaker (1 1). Set NO. 2 ENGINE CONDl-
TION lever (13) to GROUND. Close EN-
GINE NO. 2 COND CONT circuit breaker
(11).
Set NO. 2 ENGINE CONDITION lever (13)
to STOP and then to GROUND.
If circuit breaker (11) is open, close it. If it opens
again, go to task 4-5.4.
If capsule (12) is lit, go to task 4-5.5.
Fuel control pointer (14) shall not move. If it does,
replace No. 2 gas producer control box.
Fuel control pointer (14) shall move and stop about
mid point in ground band on protractor (15). If it
does not, go to task 4-5.9. NO. 2 ENG N1 CONT
capsule (12) shall come on and stay on until fuel
control pointer moves to ground position. If capsule
does not come on, go to task 4-5.10. If light comes
on and stays on, go to task 4-5.5.
NO. 2 ENG N1 CONT capsule (12) shall come on and
stay on until fuel control pointer (14) moves to flight
band. Pointer (14) shall make positive contact with
stop (16). Rod (17) shall compress and partially cov-
er brown band (18). If capsule (12) comes on and
goes out and pointer (14) does not move, replace
No. 2 gas producer control actuator. If pointer (14)
moves but does not make contact with stop or
brown band is not partially covered, go to task 4-
5.8.
Set NO .2 ENGINE CONDITION lever (13)
to FLIGHT.
Set NO. 2 ENGINE CONDITION lever (13)
to GROUND.
NO. 2 ENG N1 CONT capsule (12) shall come on and
stay on until fuel control pointer (14) moves to and
stops within ground band.
Set NO. 2 ENGINE CONDITION lever (13)
to STOP.
NO. 2 ENG N1 CONT capsule (12) shall come on and
stay on until fuel control pointer (14) moves to stop
band on protractor (15) and is in positive contact
with stop (19). If capsule (12) is still on when point-
er is against stop (19), go to task 4-5.5.
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