S 824-126
(6) Align the PDU until the arrow on the PDU is between these angular positions shown on the index block:
(a) For PDU 23R, the arrow must be between 3-degrees CW and 16-degrees CW
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(b) For PDU 24, the arrow must be between 16-degrees CW and 22-degrees CW.
S 424-127
CAUTION: BE CAREFUL WHEN YOU LOWER THE PDU INTO THE SUPPORT FITTING.
_______ DAMAGE COULD OCCUR TO THE LIMIT SWITCHES.
(7) ALL PDU'S EXCEPT 4 AND 5, LEFT AND RIGHT; Lower the PDU into the support fitting.
NOTE: The gear on the bottom of the PDU must engage the gear on the
____
steering actuator in the floor.
S 434-158
(8) ALL PDU'S EXCEPT 4 AND 5, LEFT AND RIGHT; Release the trigger mechanisms to lock the PDU to the support fitting.
NOTE: The PDU will lock when the red indicator flag on the trigger
____
mechanisms retract into the handles.
S 434-129
(9)
Move the PDU handles to the horizontal (folded) position.
S 414-130
(10)
Install the caster trays or lock/stop roller and caster tray which you removed to get access to the PDU (AMM 25-57-04/401 or AMM 25-58-01/401).
S 864-152
(11)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P415, Power Distribution Center Right Panel
1) 415F18, CARGO HANDLING CONT MAIN DECK
(b)
P34, Main Deck Cargo Handling Power Panel
1) PDU 1 & 2 STEERING 2
2) PDU 3 & STEERING
3) PDU 4L & 4R STEERING
4) MAIN DECK CARGO HANDLING CONTROL
(c)
P128, Main Deck Cargo Handling Power Panel
1) PDU 5R & 6R & STEERING
2) PDU 7R & 8R STEERING 7R
3) MAIN DECK CARGO HANDLING CONTROL
(d)
P130, Main Deck Cargo Handling Power Panel
1) PDU 22R & 23R STEERING 23R
2) PDU 24 & STEERING
(e)
P133, Main Deck Cargo Handling Power Panel
1) PDU 5L & 6L & STEERING
2) PDU 7L & 8L STEERING 7L
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3) MAIN DECK CARGO HANDLING CONTROL
S 714-133
(12) For PDU 23R and PDU 24, make sure you can electrically operate the PDU from a local cargo control panel:
NOTE: The PDUs can be operated from more than one local cargo
____ control panel. This test gives instructions to operate the PDUs from only one of the local cargo control panels. Refer to AMM 25-57-00/501 for the full operational test of the PDUs from the other local cargo control panels if it is necessary.
(a)
Supply electrical power (AMM 24-22-00/201).
(b)
Push the SYSTEM POWER ON switch momentarily at the master cargo control panel (M1).
(c)
Move the P29 ARMING-OFF/ARM switch to the ARM position at the local cargo control panel 22AR.
(d)
For PDU 23R, do these steps at the local cargo control panel 22AR: 1) Hold the LOCAL DRIVE switch to the AFT position. 2) Make sure the drive-wheel moves and stops at the 3-degree
clockwise position then turns in the aft direction. 3) Hold the LOCAL DRIVE switch to the FWD position. 4) Make sure the drive-wheel moves and stops at the 13-degree
clockwise position then turns in the forward direction. 5) Adjust the PDU limit switches if the drive-wheel did not stop at the applicable angular position (AMM 25-57-00/501).
NOTE: The angular position of the drive-wheel must be less
____ than |1.0 degree of the applicable angular position.
(e) For PDU 24, do these steps at the local cargo control panel 24L: 1) Hold the LOCAL DRIVE switch to the AFT position. 2) Make sure the drive-wheel moves and stops at the 16-degree
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