1) Make sure the PRSOV PILOT solenoid opens. a) Listen for the solenoid to click and/or feel to see if the solenoid pin moves out.
(b)
Pull the LEFT (RIGHT) fire handle on the P8 panel out to the emergency fire position.
NOTE: To pull fire handles into the emergency fire position,
____ it is necessary to use the manual fire override switch behind the fire handle.
1) Make sure the PRSOV PILOT solenoid closes. a) Listen for the solenoid to click and/or feel to see if the solenoid pin moves in.
(c)
Put back the LEFT (RIGHT) fire handle to the usual position.
(d)
Stop simulated engines running (AMM 77-12-03/201).
(e)
Remove the jumper wire between pins 1 and 2 of the Reverse Flow Check Controller connector D5272.
(f)
Close strut access and pressure relief doors
(AMM 06-43-00/201).
M. Engine Fuel Control Shutoff during the operation of the Fire Switch.
S 716-076
CAUTION: DO NOT TURN THE FIRE HANDLE WHEN YOU PULL IT INTO THE EMERGENCY
_______ FIRE POSITION. IF YOU TURN THE FIRE HANDLE THE CONTENTS OF THE FIRE BOTTLE CAN BE LET OUT.
(1) Do the operational checks that follow:
(a) Do the wet motor engine procedure to the step in the procedure that sets the FUEL CONTROL switch to RUN and the ENG VALVE disagreement light comes on momentarily (AMM 71-00-00/201), then do the steps that follow: 1) Pull the LEFT (RIGHT) fire handle on P8 out to the
emergency fire position.
NOTE: To pull the fire handle into the emergency fire
____ position, it is necessary to use the manual fire override switch behind the fire handle.
2) Make sure the ENG VALVE disagreement light on P10 comes on and goes off which shows the valve is closed. 3) Put back the fire handle to the usual position.
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757 MAINTENANCE MANUAL
(b) Continue the wet motor engine procedure after the FUEL CONTROL switch is put back to the CUTOFF position to remove the remaining fuel.
N. Thrust Reverser (T/R) Power Shutoff during the operation of the Fire Switch.
NOTE: On airplanes with low oil pressure switch input to the thrust
____ reverser isolation valve circuit, the thrust reverser override switch must be pushed and held for the duration of the check. The override switch is installed on the engine behind the Starter Control Valve access panel.
S 716-077
CAUTION: DO NOT TURN THE FIRE HANDLE WHEN YOU PULL IT INTO THE EMERGENCY
_______ FIRE POSITION. IF YOU TURN THE FIRE HANDLE THE CONTENTS OF THE FIRE BOTTLE CAN BE LET OUT.
(1)
Supply hydraulic power (AMM 29-11-00/201).
S 716-084
(2)
Do the operational checks that follow:
(a)
Put the L (R) thrust reverse lever in the DEPLOY position.
(b)
Make sure the thrust reverser opens.
(c)
Pull the LEFT (RIGHT) fire handle on the P8 panel out to the emergency fire position.
NOTE: To pull the fire handle into the emergency fire
____ position, it is necessary to use the manual fire override switch behind the fire handle.
(d)
Put the L (R) thrust reverse lever in the STOW position.
(e)
Make sure the thrust reverser does not close.
S 986-082
(3) Put back the fire handle to the usual position.
(a) Make sure the thrust reverser closes.
S 866-158
(4) Remove hydraulic power if it is not necessary (AMM 29-11-00/201).
O. Flight Deck indications.
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