H29083
Generator Drive Oil Cooler Installation 500
24-11-21Page 402 Figure 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Aug 15/67
E. Tighten nuts 44 to 49 pound-inches torque.
F. Remove caps from cooler OUT port and large diameter or OUT flex tube.
G. Wet O-ring with engine oil MIL-L-7808 and install in flex tube fitting.
H. Connect flex tube to OUT port on cooler. Tighten flex tube union.
I. Remove caps from cooler IN port and smaller diameter flex tube.
J. Wet O-ring with engine oil MIL-L-7808 and install in flex tube fitting.
K. Connect flex tube to IN port on cooler. Tighten flex tube union.
L. Fill CSD with oil. Refer to Constant Speed Drive Servicing, Chapter 12.
M. Start engine and check oil cooler for oil leaks.
N. Close engine cowl panels.
Aug 15/67 24-11-21 Page 403 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
GENERATOR DRIVE LINE OIL FILTER - UNIT SERVICING
1. General
A. The need for changing the line filter element or cartridge is determined by the condition of the CSD as revealed by the accumulation of iron particles on the magnets of the magnetic drain plug chip collector, by the number of hours since the last filter change and by whether the drive system has been overheating. Newer filters, P/N 7581418, have differential-pressure pop-out indicators which indicate when the filter requires replacing. If heavy deposits of iron fuzz are found on the magnets of the chip collector, the further examination of the filter would determine the condition of the drive. If chunks of metal are found on the filter the drive should be removed (Ref 24-11-11, I/C).
CAUTION: DURING ALL MAINTENANCE ON CONSTANT SPEED DRIVE, CLEANLINESS IS ABSOLUTELY ESSENTIAL. TAKE ALL POSSIBLE PRECAUTION TO PREVENT FOREIGN MATTER FROM ENTERING DRIVE SYSTEM.
B. When the CSD is changed, for whatever reason, the CSD line filter element should be changed. If the CSD overheats the line filter should be checked for sludging. If carbon particles are found, the CSD system should be drained and reserviced, and the CSD line filter element changed (Ref 12-13-21).
2. Equipment and Materials
A. Petrolatum - VV-P-236 (Vaseline)
3. Change Line Oil Filter Element (Fig. 301)
A. Remove line oil filter element.
WARNING: USE EXTREME CARE WHEN DRAINING CSD OIL OR REMOVING CSD COMPONENTS. HOT OIL CAN CAUSE INJURY.
PROLONGED CONTACT WITH CSD OIL CAN CAUSE DERMATITIS. OIL WILL STAIN CLOTHING AND CAN SOFTEN PAINT.
CAUTION: TAKE ALL POSSIBLE PRECAUTIONS TO PREVENT FOREIGN MATTER FROM ENTERING DRIVE SYSTEM.
(1)
Remove locking wire.
(2)
Unscrew filter case and discard case O-ring.
(3)
Remove filter element and discard filter O-ring.
(4)
Remove filter O-ring from inside of mouth of filter element.
B. Install Line Oil Filter Element (Fig. 301)
(1)
Install new filter O-ring inside of mouth of filter element.
(2)
Coat filter case thread with small amount of Petrolatum.
(3)
Install new case O-ring. Install filter case, torque to 240-360 (case without pop-out indicator) or 300-360 (case with pop-out indicator) pound-inches, and lockwire.
C. Service CSD with oil (Ref 12-13-21)
CAUTION: DO NOT OVERFILL DRIVE. OVERHEATING AND SLUDGING CAN RESULT IN DRIVE DAMAGE.
D. Motor engine and check CSD oil system for leaks.
Sep 20/81 24-11-31 Page 301 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
H20861
Generator Drive Line Oil Filter Element Installation 500
24-11-31Page 302 Figure 301 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Sep 20/81
GENERATOR DRIVE INTEGRAL OIL FILTER - UNIT SERVICING
1. General
A. The need for changing the integral oil filter element is determined by the condition of the CSD as revealed by the accumulation of iron particles on the magnets of the plug, by the number of hours since the last filter change and by whether the drive system has been overheating. If heavy deposits of iron fuzz are found on the chip collector, the further examination of the filter would determine the condition of the drive. If chunks of metal are on the filter replace drive, oil cooler and associated tubing (Ref 24-11-11, I/C).
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