B.
Access
(1)
Location Zones
212 Left Air Conditioning Equipment Bay
214 Right Air Conditioning Equipment Bay
216 Left Main Landing Gear Door
217 Right Main Landing Gear Door
(2)
Access Panels
3303L/3403R Air Conditioning Access Panel
C.
Remove the Thrust Reverser Volumetric Hydraulic Fuses
S 864-004-C00
(1)
Remove hydraulic power (AMM 29-15-00/201).
S 024-006-C00
(2)
Remove the fuses from the forward bulkhead of main landing gear wheel well (Fig. 401).
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SEE A
FWD
SEE B FORWARD BULKHEAD OF THE MAIN WHEELWELL A SEE C
SYSTEM FUSE 175 CUBIC INCH PRIMARY PRESSURE
175 CUBIC INCH
PRIMARY PRESSURE
SYSTEM FUSE C B
Primary Pressure System Hydraulic Fuse Removal/Installation
Figure 401
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(a)
Loosen the nuts on each side of the two fuses.
(b)
Remove the two fuses.
S 024-002-C00
(3) Remove the fuses from the keel beam of the main landing gear wheel well (Fig. 402).
(a)
Loosen the nuts on each side of the two fuses.
(b)
Remove the two fuses.
S 024-003-C00
(4) Remove the fuses from the air conditioning bays (Fig. 403).
(a)
Open access panels 3303L and 3403R.
(b)
Do the steps that follow to remove the Return System fuse ('A' side hydraulics) from the left air conditioning bay (Fig. 404). 1) Open access panel 3303L. 2) Locate the air conditioning duct [73].
a) Remove the nut [72] that attaches the bonding jumper
[71] to the air conditioning duct [73]. b) Remove the bonding jumper [71] from the air conditioning duct [73]. c) Remove the V-band clamp [74] from each end of the air conditioning duct [73]. d) Remove the air conditioning duct [73]. 3) Locate the tube bracket [76] just aft of the fuse [80]. a) Remove the two screws that hold the bottom bracket to the top bracket. b) Move the bottom bracket to the side.
4) Locate the hydraulic tube [77] that runs from the fuse [80]
to the aft bulkhead of the air conditioning bay.
a) Loosen the nut the attaches the tube [77] to the aft
bulkhead.
b) Drain the hydraulic fluid into a container.
c) Loosen the nut [75] that attaches the tube [77] to the
'T' fitting [78].
d) Remove the tube [77]. 5) Loosen the nut [81] on the aft end of the fuse. 6) Loosen the nut [79] on the forward end of the fuse. 7) Remove the fuse [80].
(c) Do the steps that follow to remove the Return System fuse ('B' side hydraulics) from the right air conditioning bay (Fig. 405). 1) Open access panel 3403R. 2) Locate the air conditioning duct [91].
a) Remove the nut [92] that attaches the bonding jumper
[93] to the air conditioning duct [91].
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
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