(2)
Turn the four studs, on the hydraulic control module, 1/4 turn.
S 024-011
(3)
Slowly pull the hydraulic control module away from the overhead panel, P5, to get access to the electrical connectors.
S 034-003
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A
747-400
MAINTENANCE MANUAL
STUD (4 LOCATIONS)
Hydraulic Control Module Installation
Figure 401
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747-400 MAINTENANCE MANUAL
S 034-012
(4)
Disconnect the four electrical connectors from the hydraulic control module.
S 024-005
(5)
Remove the hydraulic control module.
TASK 29-11-40-404-006
3. Hydraulic Control Module Installation (Fig. 401)_____________________________________
A. References
(1)
AMM 29-11-40/501, Hydraulic Control Module
B.
Access
(1)
Location Zone
200 Flight Compartment
C.
Procedure
S 434-007
(1)
Connect the four electrical connectors to the hydraulic control module.
S 424-008
(2)
Put the hydraulic control module in its position on the overhead panel, P5.
S 434-013
(3)
Turn the four studs, on the hydraulic control module, 1/4 turn.
S 864-009
(4)
Make sure all the switches on the hydraulic control module are in the OFF position.
S 864-010
(5)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6 Main Power Distribution Panel 1) 6F19 FLT DK LIGHTS PILOT MISC IND 1 2) 6F20 FLT DK LIGHTS PILOT MISC IND 2 3) 6F26 FLT DK LIGHTS F/O IND 4) 6F27 FLT DK LIGHTS F/O IND & DGTL DSPL 5) 6L4 FLT DK LT CAPT IND 6) 6L5 FLT DECK LIGHT CAPT IND DGTL DSPL
(b)
P7 Overhead Circuit Breaker Panel
1) 7F1 HYDRAULICS DEMAND 4
2) 7G1 HYDRAULICS DEMAND 3
3) 7H1 HYDRAULICS DEMAND 2
4) 7J1 HYDRAULICS DEMAND 1
5) 7F2 HYDRAULICS EDP DEPRESS 4
6) 7G2 HYDRAULICS EDP DEPRESS 3
7) 7H2 HYDRAULICS EDP DEPRESS 2
8) 7J2 HYDRAULICS EDP DEPRESS 1
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S 714-014
(6) Do an operational test of the Hydraulic Control Module (AMM 29-11-40/501)
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747-400 MAINTENANCE MANUAL
HYDRAULIC CONTROL MODULE - ADJUSTMENT/TEST
__________________________________________
1. General_______
A. There is one task in this section:
(1) Do an operational test of the Hydraulic Control Module.
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