TM 9-2320-209-20-3-1 7-49. OIL PRESSURE TRANSMITTER REMOVAL AND REPLACEMENT. TOOLS: 3/4-inch open end wrench (2) SUPPLIES: Heat resistant sealer, type II, MIL-S-45180 PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. Preliminary Procedure. Remove air cleaner filter element. Refer to TM 9-2320-209-10. CAUTION Make sure ACCESSORY switch is set to OFF position while doing this procedure. Failure to do this may cause a short and damage wiring or transmitter. b. Removal. 1. Take connector (1) off oil pressure transmitter (2). 2. Using 3/4-inch wrench, unscrew oil pressure transmitter (2) from adapter fitting (3). Hold adapter fitting from turning in elbow (4) with 3/4-inch wrench. END OF TASK 7-183