49-11-00
ALL ú ú 02 Page 249 ú Jul 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
S 432-134
(8) APUs PRESERVED FOR MORE THAN 180 DAYS;
Connect the fuel hose:
(a)
Remove the cap from the fuel hose.
(b)
Connect the fuel hose to the elbow on the fuel control unit.
S 862-131
(9)
Do the low pressure bleed procedure (AMM 49-31-00/201).
S 862-132
(10)
Do the high pressure bleed procedure (AMM 49-31-00/201).
S 862-135
(11)
Operate the APU for a minimum of 3 to 5 minutes:
(a)
Do the steps as specified in the APU Start and Operation.
(b)
Do the steps as specified in the APU Usual Shutdowm.
S 792-136
(12) Do a check of the oil lines and the fuel lines for leakage.
NOTE: If you find leakage, you must repair the lines or
____
connections.
S 902-137
(13)
Replace the fuel filter element for the low pressure fuel (AMM 49-31-22/401).
S 902-138
(14)
Replace the fuel filter element for the high pressure fuel (AMM 49-31-81/301).
S 902-139
(15)
Replace the oil filter element (AMM 49-91-12/401).
S 792-140
(16)
Do a check of the APU fuel system for leakage (AMM 49-31-00/201).
TASK 49-11-00-202-033
15. Control Air Leak Check (Fig. 209)
______________________
A. General
(1) This procedure gives the task to do a leak check on the pressure line for the control air.
B. Standard Tools and Equipment
(1) Air Source - Dry Compressed
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SEE B
SEE C
SEE A
FILTER HEAD
A
PACKING BACKUP RING PACKING
FILTER
FILTER GUIDE
ELEMENT PACKING FILTER ELEMENT
PACKING FILTER CAP FOR THE HIGH PRESSURE FUEL
FILTER
PACKING
HEAD
FILTER CAP FOR THE
BACKUP RING
LOW PRESSURE FUEL
PACKING
B 1 FILTER FILTER GUIDE
ELEMENT PACKING
FILTER
ELEMENT
FILTER CAP FOR THE PACKING
LOW PRESSURE FUEL
FILTER CAP FOR THE
HIGH PRESSURE FUEL
B2
1
AIRPLANES WITHOUT THE TAFCU
2
AIRPLANES WITH THE TAFCU
Fuel and Oil Filter Installation
Figure 208 (Sheet 1)
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49-11-00
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////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES /MAINTENANCE MANUAL ////////////////////////
PACKING
FILTER ELEMENT PACKING
OIL FILTER CAP
OIL PUMP
C
Fuel and Oil Filter Installation
Figure 208 (Sheet 2)
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