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MAINTENANCE MANUAL
(b)
Disengage the support rods for the APU access doors.
(c)
Put the support rods in the clips on the inner side of the APU access doors.
(d)
Make sure the insulation covers correctly attach to the APU compartment firewall.
(e)
Close the APU access doors.
(f)
Close the latches on the APU access doors.
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OIL PUMP - REMOVAL/INSTALLATION
_______________________________
1. General_______
A. This procedure gives the tasks to remove and install the APU oil pump.
B. The APU oil pump is on the forward end of the accessory gearbox.
TASK 49-27-07-024-001
2. Oil Pump Removal (Fig. 401)________________
A. Standard Tools and Equipment
(1)
Pliers - Snap Ring, 120°
B.
References
(1)
12-22-02/301, Auxiliary Power Unit (Oil Change)
(2)
AIPC 49-16-00, Fig. 2, AIPC 49-27-00, Fig. 1
C.
Access
(1)
Location Zone
318 APU Compartment-Bottom Inlet Plenum, Accessory Gearbox Forward Face
(2)
Access Panel
317AL APU Access Door
318AR APU Access Door
D.
Procedure
S 864-003
(1)
Make sure the APU control switch on the P5 panel is OFF and attach a DO-NOT-OPERATE tag.
S 864-070
(2)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P6 Main Power Supply Panel
1) 6K18 APU ALTN CONT
(b)
P83 Panel, E8 Aft Equipment Center
1) APU PRIMARY CONT
S 014-004
(3)
Open the APU access doors.
(a)
Open the latches on the APU access doors.
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MAINTENANCE MANUAL
1. OIL FILTER COUPLING TUBES
8. NUT
4. PACKING
2. PRESSURE VALVE 6. OIL-SCAVENGE-TUBE
TUBE
3. RETAINER RING 7. PACKING 4A. PACKING 5. PACKING 9. PACKING
23. RETAINER RING 10. OIL TUBE
22. PRESSURE-PUMP TUBE
11. PACKING
21. PACKING
12. NO. 4 BEARING
20. OIL PUMP
SCAVENGE-TUBE
19. PACKING
13. NUT
24. GAS-GENERATOR 18. WASHER
HOUSING 17. BRACKET
DRAIN-TUBE
13. NUT
18. WASHER
15. BRACKET
25.
COUPLING NUT
26.
COUPLING NUT
PARTIAL VIEW OF APU
PORT SIDE
Oil Pump - Removal/Installation
Figure 401 (Sheet 1)
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MAINTENANCE MANUAL
32. ACCESSORY GEARBOX
27. LOAD GEARBOX
35. STRAINER SEE ASLEEVE
36. PACKING 33A. PACKING
34. OIL
28A. PACKING
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