S 862-056
(a) On P129 panel, PDU No. 17R and 18R.
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(b)
On P130 panel, PDU No. 19R1 and 19R2.
(c)
On P134 panel, PDU No. 17L and 18L.
(d)
On P135 panel, PDU No. 19L1 and 19L2.
S 412-016
(9) Close drain pan door beneath PDU in aft lower cargo compartment ceiling.
TASK 25-57-01-042-034
4. Deactivate Retractable/Steerable PDU Limit Switches___________________________________________________
A. References
(1) AMM 25-57-01/401, Power Drive Units
B. Equipment
(1) Bypass Jumper Plug - MIT69B62284
C. Consumable Materials
(1) Lockwire or strong cord (AMM 20-30-04/201)
D. Access
(1) Location Zones
210 Main Deck
E. Deactivation of limit switches with bypass jumper plug MIT69B62284 (Fig. 203).
S 862-040
(1) Open the following PDU circuit breakers, as applicable and attach DO-NOT-CLOSE tags:
(a)
On P129 panel, PDU No. 17R and 18R.
(b)
On P130 panel, PDU No. 19R1 and 19R2.
(c)
On P134 panel, PDU No. 17L and 18L.
(d)
On P135 panel, PDU No. 19L1 and 19L2.
S 022-019
(2)
Open drain pan door beneath PDU in aft lower cargo compartment ceiling.
(3)
Disconnect limit switch electrical connector.
(4)
Install bypass jumper plug.
S 422-022
(5)
Close drain pan door beneath PDU in aft lower cargo compartment ceiling.
S 862-041
(6)
Remove the DO-NOT-CLOSE tags and close the applicable circuit breakers:
(a)
On P129 panel, PDU No. 17R and 18R.
(b)
On P130 panel, PDU No. 19R1 and 19R2.
(c)
On P134 panel, PDU No. 17L and 18L.
S 022-020
S 422-021
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(d) On P135 panel, PDU No. 19L1 and 19L2.
(7) S 442-032Install temporary placard on master cargo control panel to alert personnel that PDU(s) are deactivated and describe method used for deactivation.
(8) S 442-033When reactivating retractable/steerable PDU, remove bypass jumper plug and reinstall PDU per normal installation procedure (AMM 25-57-01/401).
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MAINTENANCE MANUAL
MANUAL
PDU NO.
STA. NO.
TYPE CARGO
SETTING
20R/21R 2
1950/2010
96 X 238.5-INCH
10` CCW
20R/21R 2
1950/2010
88 X 108, 88/96 x 125,
0`
OR 96 X 117.75-INCH
22R3 1
2090
88 X 108-INCH
4` CW
22R3 1
2090
88 X 125, 96 X 125, OR
2` CW
96 X 117.75-INCH
FREIGHTERS COMBIS
PDU 22R IS SET TO 0` WHEN HANDLING CARGO UNITS FORWARD OF STA 2218
Manually Adjustable PDU Angular Settings
Figure 201
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25-57-01 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：747-400 AMM 飛機維護手冊 EQUIPMENT/FURNISHINGS 2(68)
