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Xmsn Oil Temp		Up
TB-9-4920-361-24 Vertical Display System Line Test Set Cavadian Marconi Model 476-853 and Bench Test Set Canadian Marconi Model 476-854 Manual		Next
Engine Oil Press No. 1 and No. 2

TB 9-4920-361-24
(6) On model 476-853, set ROTOR SPEED CAL/NOR to NOR and adjust ROTOR
SPEED variable control from fully ccw to fully cw. Frequency counter indication will vary
from 0 to 17,200 Hz minimum.
(7) On model 476-854, set ROTOR SPEED CAL/NOR to NOR. Frequency counter
will indicate between 17,200 and 18,000 Hz.
(8) On model 476-854, adjust ROTOR SPEED variable control from fully cw to fully
ccw. Frequency counter indication will vary from 17,200 Hz minimum to 0.
(9) Set ON-OFF-SIM ONLY switch to OFF.
b. Adjustments. No adjustments can be made.
15. Engine % Rpm No. 1 and No. 2
a. Performance Check
(1) Connect frequency counter to connector No. 1 pins C (HI) and D (LO).
(2) Set ENGINE % RPM NO. 1 CAL/NOR switch to CAL and HI/LO switch to HI.
(3) Set ON-OFF-SIM ONLY switch to SIM ONLY.
Frequency counter will
indicate between 1308 (1332.5) and 1362 (1334.5) Hz.
(4) Set ENGINE % RPM NO. 1 HI/LO switch to LO.
Frequency counter will
indicate 0.
(5) On model 476-853, set ENGINE % RPM NO. 1 CAL/NOR to NOR and adjust
ENGINE % RPM NO. 1 variable control from fully ccw to fully cw. Frequency counter
indication will vary from 0 to 1830 Hz minimum.
(6) On model 476-854, set ENGINE % RPM NO. 1 CAL/NOR to NOR. Frequency
counter will indicate between 1,830 and 2,030 Hz. Adjust ENGINE % RPM NO. 1 variable
control from fully CW to fully CCW. Frequency counter will indicate 0 Hz.
(7) On model 476-853, adjust ENGINE % RPM NO. 1 variable control fully ccw.
(8) Set ON-OFF-SIM ONLY switch to OFF.
(9) Disconnect leads from connector No. 1 pins C (HI) and D (LO) and connect to
connector No. 2 pins Y (HI) and Z (LO).
(10) Repeat (2) through (8) above, except use ENGINE % RPM NO. 2 controls.
b. Adjustments. No adjustments can be made.
16. Gas Gen Speed No. 1 and No. 2
a. Performance Check
(1) Connect frequency counter to TI connector No. 1 pins c (HI) and d (LO).
(2) Set GAS GEN SPEED NO. 1 CAL/NOR switch to CAL and HI/LO switch to
HI. On model 476-854, adjust GAS GEN SPEED NO. 1 variable control fully cw.
(3) Set ON-OFF-SIM ONLY switch to SIM ONLY.
Frequency counter will
indicate between 2125 (2134.3) and 2145 (2136.3) Hz.
CHANGE 2 11

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