TM 9-2320-361-20 4-36. FRONT-WHEEL DRIVE LOCK-IN SWITCH INDICATOR AND AIR PRESSURE SWITCH REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: APPLICABLE MODELS EQUIPMENT CONDITION All Parking brake set (TM 9-2320-361-10). REFERENCES (TM) Air reservoirs drained (TM 9-2320-361-10). Battery ground cable disconnected (para. 4-48). TM 9-2320-361-10 TM 9-2320-361-20P NOTE Tag all wires for installation. 1. Remove wire connector (10) from air pressure switch (9). 2. Remove air pressure switch (9) from air valve (8). 3. Disconnect wire (14) from connector (15) at front wiring harness (1). 4. Disconnect wires (11) and (12) from connector (13). 5. Disconnect wire (7) from indicator lamp socket (6). 6. Remove lens cover (4) and lamp (3) from indicator lamp socket (6). 7. Remove two screws (5) and indicator lamp socket (6) from bracket (2). 1. Install indicator lamp socket (6) on bracket (2) with two screws (5). 2. Install lamp (3) and lens cover (4) on indicator lamp socket (6). 3. Connect wire (7) to indicator lamp socket (6). 4. Connect wires (11) and (12) to connector (13). 5. Connect wire (14) to connector (15) at front wiring harness (1). 6. Install air pressure switch (9) on air valve (8). 7. Install wire connector (10) on air pressure switch (9). 4-54