(2)
Oil-out fitting to case: 90 to 110 pound-inches.
(3)
Magnetic plug: 15 to 20 pound-inches.
(4)
Magnetic plug body: 30 to 40 pound-inches.
(5)
Output seal drain fitting: 60 to 80 pound-inches.
N. Connect main electrical connector and attach electrical harness to CSD.
CAUTION: BEFORE CONNECTING MAIN ELECTRICAL CONNECTOR, CHECK THAT ELECTRICAL POWER IS OFF.
O. Fill CSD with oil (Ref 12-13-21).
P. Fill drive input spline cavity through fill-check-valve with same oil as used in engine. Remove cavity-stand-pipe cap on engine gear case and add oil until it appears at pipe opening. Replace cap and torque to 40 to 50 pound-inches.
Q. Check for leakage between engine gear case and constant speed drive case 30 minutes after filling.
R. Close all circuit breakers opened for removal/installation of CSD.
S. Reset constant speed drive disconnect clutch.
(1) To reset disconnect pull down handle until a stop is reached or solenoid nose pin snaps into position in pocket of disconnect pawl.
500
24-11-11 Page 404 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Jun 20/89
500 AC Generator Drive Installation
Feb 20/85 Figure 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 24-11-11 Page 405
T. Prime constant speed drive before starting engine.
(1) Motor engine at approximately 20% N2 rotor speed for 1 minute (Ref Chapter 71). Constant speed drive is primed when LOW OIL PRESSURE indicator light on forward overhead panel goes off, or with RESID VOLTS switch pressed a residual voltage is indicated on the ac voltmeter
NOTE: If low oil pressure light remains on after motoring, start engine and verify that light goes off before N2 reaches idle RPM. If light still remains on, shut down engine and replace CSD.
6. Check CSD and Generator Operation With Engine Operating
A. Start engine and run at idle.
CAUTION: DO NOT EXCEED IDLE SPEED.
B. Close generator control (field) relay by momentarily moving a generator control switch for (GEN 1, or GEN 2) on the forward overhead panel to ON. Voltmeter should read 115 volts and frequency meter reading should be between 399 and 401 Hz.
CAUTION: SHUT DOWN ENGINE IMMEDIATELY IF VOLTAGE AND FREQUENCY DO NOT REGISTER.
(1) If frequency is outside the range 399 to 401 Hz, adjust CSD (Ref 24-11-11, A/T).
CSD Mounting Pad on Engine Accessory Gearbox with Adapter Removed 500
24-11-11 Figure 402 Aug 15/80
Page 406
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
C. Check newly installed generator output voltage and for phase reversal.
CAUTION: EXERCISE EXTREME CAUTION WHEN WORKING AROUND ENERGIZED EQUIPMENT. THE CURRENTS INVOLVED CAN BE FATAL.
(1)
Open the load control center panels (P6-11 or P6-12) for access to leads from generator No. 1 or No. 2 respectively, with the generator breakers open. Panel P6-4 may be opened for access to the No. 1 and No. 2 bus for a check with the generator breakers closed (Ref 24-50-0, D&O).
(2)
By using a phase sequence indicator check phase rotation which should be 1-3-2 at the generator or A-B-C at the circuit breakers in P6 panels above.
(3)
If phase rotation is backward, check output leads at generator. Two output leads are reversed.
(4)
Check generator voltage by setting selector switch to GEN 1 or GEN 2 and momentarily placing GEN 1 or 2 switch on pilots' forward overhead panel to ON. AC voltmeter should read about 115 volts.
(5)
Close load control center panels P6-11 and/or P6-12.
D. Shut down engines.
E. Check oil level at sight gage after stopping engine.
NOTE: Do not reservice if oil remains within applicable operating range on sight gage. If oil level is below operating range, reservice to proper level (Ref 12-13-21, SRV).
F. Check CSD for oil leaks after first engine operation following drive installation. There should be no leakage at following locations:
(1)
Oil supply and return line connections.
(2)
Oil pressure warning switch mountings.
(3)
CSD case, and at QAD locking ring and spline cavity joining surfaces.
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