(a)
Disconnect the eight phase leads of the two power cables D60 (12) and D70 (13) from the two terminal blocks on generator No. 1 (9) and generator No. 2 (7): 1) Remove the two terminal block covers (29) from the two
terminal blocks.
2) Remove the eight terminal nuts (30), eight washers (31) and eight phase leads from the studs on the two terminal blocks.
3) Attach an identification tag on each of the eight phase leads. 4) Install the eight washers (31) and eight terminal nuts (30)
on the studs of the two terminal blocks.
5) Tighten the eight terminal nuts (30) with your hand.
6) Install the two terminal block covers (29) on the two
terminal blocks.
(b)
Remove the two bolts (27), four washers (26) and two nuts (28) that attach the two clamps and two APU control cables DM299B (23) and DM299A (24) to the harness support bracket.
(c)
Disconnect the two APU control cables DM299A (24) and DM299B (23) from the two APU control connectors (25).
(d)
Install the two bolts (27), four washers (26) and two nuts (28) on the harness support bracket.
(e)
Disconnect the two control cables DG2A (11) and DG2B (10) from generator No. 1 (9).
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A
747-400 MAINTENANCE MANUAL
SEE DSEE A
SEE E
SEE F
FWD APU COMPARTMENT
SEE SEE B C
Auxiliary Power Unit Installation - Fishpole Hoist Method Figure 401 (Sheet 1) FWD APU COMPARTMENT
F58274
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A 747-400 MAINTENANCE MANUAL
AIRPLANE STRUCTURE STA 2674.85
Auxiliary Power Unit Installation - Fishpole Hoist Method
Figure 401 (Sheet 2)
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A 747-400 MAINTENANCE MANUAL
STRUCTURAL STA 2733.89
GROUND HANDLING
Auxiliary Power Unit Installation - Fishpole Hoist Method Figure 401 (Sheet 3)
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A 747-400 MAINTENANCE MANUAL
SEE G
SEE H
TURNBUCKLE
BELLOWS
FWD
APU COMPARTMENT
SUPPORT
STRAP
STRUCTURAL
STA 2742
APU EXHAUST DUCT
KEYHOLE SLOT BRACKET
H
G
Auxiliary Power Unit Installation - Fishpole Hoist Method Figure 401 (Sheet 4)
F58167
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A
747-400
MAINTENANCE MANUAL
APU APU SHOP HANDLING SLING ASSEMBLY
APU CRADLE
PLATFORM SCISSORS LIFT
APU
SADDLE REMOVABLE
(4 LOCATIONS) CRANK-DOWN STABILIZER CRADLE (4 LOCATIONS) BOLT NUT
HYDRAULIC JACKSTAND
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