TM 55-1520-240-T
4-5.3
GAS PRODUCER CONTROL SYSTEM (N1) OPERATIONAL CHECK (Continued)
4-5.3
TASK
RESULT
20.
Move NO. 2 ENGINE CONDITION control
NO. 2 ENG N1 CONT capsule (12) shall come on
lever (13) from STOP to GROUND to
when pointer (14) travels between bands. if capsule
FLIGHT, and then directly from FLIGHT to
is not on when pointer is travelling between any two
STOP.
bands, go to task 4-5. 10. If pointer (14) is not
against stop (19), adjust gas producer system. Refer
to TM 55-1520-240-23.
21.
Move NO. 2 ENGINE CONDITION control
Fuel control pointer (14) shall move to corresponding
lever (13) from STOP to GROUND to
band on protractor (15).
FLIGHT and then to GROUND and STOP
with a pause at each position.
22.
Open ENGINE NO. 2 COND CONT circuit
breaker (11). Install topping stop (20). Do
not move stop (16) when installing topping
stop (20).
23.
Close ENGINE NO. 2 COND CONT circuit
Fuel control pointer (14) shall move to and be in
breaker (11). Set NO. 2 ENGINE CONDI-
positive contact with topping stop (20). Rod (17)
TION control lever (13) to FLIGHT.
shall compress and cover brown band (18) more
than in step 17.
NOTE
Brown band shall still be visible.
24.
Set NO. 2 ENGINE CONDITION control lever
(13) to STOP. Remove topping stop(20).
CAUTION
Make sure topping stop is
removed from engine. If it is
not, engine emergency power
capability will be disabled.
Damage
to
aircraft
or
components may result.
FOLLOW-ON MAINTENANCE:
TM 55-1520-240-23:
Electrical Power Off
Battery Disconnected
END OF TASK
Change 4 4-99
