TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
Page 487 of 1760
CONTINUITY TEST NOTE CONTINUITY TEST (10) Connect connector PX4 to FRONT BRAKE AIR pressure gage connector. (11) Connect connector clamp to FRONT BRAKE AIR pressure gage. Install plastic cable ties as required (12) Install instrument panel assembly (para 7-15). NOTE CAUTION Use care when testing electrical connectors. Do not damage connector pins or sockets with multimeter probes. Failure to comply may result in damage to equipment. NOTE Inspect connector pins/sockets for damage, corrosion, and serviceability. Check that connector pins are not pushed back or not capable of making good contact. (1) Set multimeter to ohms. (2) Connect positive (+) probe of multimeter to front brake air pressure transmitter housing. (3) Connect negative (-) probe of multimeter to ground and note reading on multimeter. (4) If continuity is not present, perform steps (5) through (12). (5) Remove self-locking nut, air pressure transmitters mounting bracket, screw, and bracket from dashboard. Discard self-locking nut. (6) Inspect dashboard and air pressure transmitters mounting bracket for corrosion. (7) If mounting surface is corroded or fittings and hardware are not tight, clean mounting surface if needed. Tighten front brake air pressure transmitter, all fittings, and hardware to ensure a good ground. (8) Position bracket, screw, air pressure transmitters mounting bracket, and self-locking nut on dashboard. (9) Tighten self-locking nut to 168-192 lb-in. (19-21 N.m). Remove plastic cable ties as required. (1) Set multimeter to ohms. (2) Connect positive (+) probe of multimeter to connector PX4 pin 4. (3) Connect negative (-) probe of multimeter to terminal lug TL150 and note reading on multimeter. (4) If continuity is not present, replace wire 1792 from connector PX4 pin 4 to terminal lug TL150 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). Change 1 2-324.7 TM 9-2320-365-20-1 CONTINUITY TEST (Cont)