TM9-2320-361-34 d. Assembly 17-15. PERSONNEL HEATER FLAME DETECTOR SWITCH MAINTENANCE (Contd) CAUTION Ceramic rod is very brittle and is easily broken; handle carefully. 1. Tilt microswitch (4) back on mount (5) and insert ceramic rod (1) in probe (6). 2. Position spring (9) in place and tilt microswitch (4) back into position. 3. Install washer (3) and adjusting screw (2) until microswitch (4) clicks, then continue an additional 3/4 turn. 4. Install sleeve (8) and nut (7) on probe (6). I e. Installation 1. Install flame detector switch (16) on heater housing (14). Tighten nut (15). 2. Install receptacle leads (12) on flame detector switch (16) with two new screw-assembled lock- washers (11). 3. Install blower motor lead (18) on flame detector switch (16) with new screw-assembled lock- washer (10). 4. Install ignition control leads (13) on flame detector switch (16) with two new screw-assembled lock- washers (17). 17-38