Xmsn Oil Press

TB 9-4920-361-24

18.

Xmsn Oil Press

a. Performance Check

(1) Connect equipment as shown in figure 3, connection B, for connector No. 2. Do

not disconnect equipment connected in figure 1.

(2) Set XMSN OIL PRESS CAL/NOR switch to CAL and HI/LO switch to LO.

(3) Set calibrator for a 6 V, 400 Hz output.

(4) Set ON-OFF-SIM ONLY switch to SIM ONLY. If multimeter does not indicate

between 3.447 and 3.735 V ac, perform b (1) through (4) below.

(5) Set XMSN OIL PRESS HI/LO switch to HI. Multimeter will indicate between

2.696 and 2.984 V ac.

(6) Set XMSN OIL PRESS CAL/NOR switch to NOR and adjust XMSN OIL

PRESS variable control from fully ccw to fully cw. If multimeter does not indicate from

more than 3.447 to less than 2.770 V ac, perform b (1) through (3) and (5) through (7)

below.

(7) Set ON-OFF-SIM ONLY switch to OFF.

b. Adjustments

(1) Set autotransformer and dc power supply to OFF, and calibrator to STBY.

(2) Remove pressure board A2 (fig. 4) and reinstall, using extender board.

(3) Set autotransformer, dc power supply, and calibrator power to ON.

(4) Adjust R39 (fig. 4) for a 3.591-V ac indication on multimeter (R).

(5) Turn XMSN OIL PRESS variable control fully ccw.

(6) Adjust R35 (fig. 4) for a 3.591 V ac indication on multimeter (R).

(7) Repeat a (2) through (6) above and adjust for best in-tolerance condition.

19. Inter Cal (Unit Tester)

NOTE

Do not perform paragraphs 19 through 22 when calibrating

model 476-853. Go to paragraph 23.

a. Performance Check

(1) Disconnect calibrator and multimeter from equipment setup.

(2) Connect simulator INTERCONNECT jack to unit tester J5 INTERCONNECT

jack, using cable (219-419742-000, supplied with TI).

NOTE

Using cable supplied with TI and connecting it to appropriate

jack being tested, while performing paragraphs 19 through 22

(tables 4, 5, and 6) and using opposite end of cable to complete

test, may prevent possible damage to connectors on TI.