(1)
Location Zones
153/154 Aft Cargo Compartment
C.
Procedure
S 864-002
(1)
Open this circuit breaker on the overhead circuit breaker panel, P11, and attach a DO-NOT-CLOSE tag:
(a)
11N22, CARGO HEAT FAN AFT
S 864-003
(2)
Open this circuit breaker on the right miscellaneous electrical equipment panel, P37, and attach a DO-NOT-CLOSE tag:
(a)
37C2, AFT CARGO FAN
S 014-004
(3) Open the cargo door No. 2 (822) and find the aft cargo heating flow fan (AMM 06-46-00/201).
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MAINTENANCE MANUAL
AFT CARGO
AFT CARGO
HEATING
FLOW FAN
INTAKE GRILL
SEE A
SEE B
1. FAN
6. BOLT (2 LOCATIONS)
A SEE A-A
2. CLAMP
3.
HOSE
4.
CLAMP
4. CLAMP CARGO HEATING DUCT (REF)
BONDING
JUMPER
(REF)
3. HOSE
A
2. CLAMP EYEBOLT (REF)
SEE A-A
5. NUT
ELECTRICAL
(SELF-LOCKING) CONNECTOR (REF)
FWD
AFT CARGO FLOW FAN A
Aft Cargo Heating Flow Fan - Installation Figure 401 (Sheet 1)
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MAINTENANCE MANUAL
FAN SUPPORT ISOLATOR (REF)
LUG
(REF)
(4 LOCATIONS) 7. WASHER
6. BOLT 8. NUT (SELF-LOCKING)
9. BONDING JUMPER
(REF) LUG FAN SUPPORT
(SELF-LOCKING) 12. NUT
11. WASHER
FWD 10. EYEBOLT
A-A
(REF) INTAKE DUCT HEATING AFT CARGO GRILL INTAKE
WIRE FILTER
AFT CARGO HEATING INTAKE GRILL B
Aft Cargo Heating Flow Fan - Installation Figure 401 (Sheet 2)
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(4) S 014-005Remove the center bulkhead lining to get access to the fan (AMM 25-50-03/401).
(5) S 034-006Remove the electrical connector from the heat fan (1).
(6) S 034-007Remove the nut (5) and bonding jumper (9) from the fan (1).
(7) S 034-008Remove the clamps (2 and 4) in four locations.
(8) S 034-009Move the hose (3) in two locations away from the fan (1).
(9) S 034-010Remove the bolts (6) from the isolators at the top fan support lugs.
S 034-011
(10)
Remove the nut (12) that attaches the lower fan support lug to the eyebolt (10).
(a)
Remove the eyebolt washer (11) and keep it.
S 024-012
(11) Remove the fan (1).
TASK 21-44-06-404-013
3. Install the Aft Cargo Heating Flow Fan (Fig. 401)
__________________________________
A. Equipment
(1)
Cooling source - ice pack, commercially
available
(2)
Thermometer - hand held type, commercially
available, range 40-80°F
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