TM 10-3930-669-34 7-4. CAB WIRE HARNESS REPLACEMENT (CONT). (21) Disconnect two wires (48 and 49) from heater (50). (22) Remove screw (51) and two wires (52 and 53) from heater (50). (23) Disconnect connector (54) from rear worklight connector (55). (24) Using terminal removal tool, remove two wires (56 and 57) from connector (54). (25) Remove conduit (58) from two wires (56 and 57). (26) If damaged, remove grommet (59) from cab (26). 7-36