TM  10-3930-643-34 BODY, CHASSIS AND HULL ACCESSORY ITEMS. 11-1 l Heater Assembly (S/N 2001 and above). (Sheet 2 of 6) DISASSEMBLY 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Using a flat tip screwdriver, remove four screws (1) and cover (2). Remove knob (3). NOTE All wire must be tagged  when removed  from  connector. Indicate whether wire is connected  to pin-type  or  socket-type  connector. Disconnect  four  wire  assemblies (4) at connector (5) and switch (7). Using a 9/16" open end wrench, remove nut (6) and switch (7). Using a flat tip screwdriver, remove plate (8), two screws (9) and plate (10). Remove two cups (11) from plate (10). Remove two screws (12) and plate (13) from heater (14). Remove two cups (15) from plate (13). Remove  screw  (16),  clamp (17) and resistor (18) from heater (14). Remove items 19 thru 22 as an assem- bly from heater (14). Go to sheet 3 11-3