TM  9-2815-202-34 4-10.  AIR  BOX  HEATER  REPLACEMENT  (Cont) AIR BOX HEATER a. Removal (1) (2) (3) (4) Remove high tension lead (28) from electrode  (29)  on  air  heater  assembly (30). Disconnect hose (1) from adapter (31) on air heater assembly (30). Remove hose. Disconnect  hose  (32)  from  connector (33) on air heater assembly (30). Remove two bolts (34), two Iockwashers  (35),  air  heater  assembly (30), and gasket (36) from block. Discard  gasket  and  Iockwashers. Discard  Iockwasher. b.  Disassembly (1) (2) (3) (4) Unscrew  electrode  (29)  from  air heater body (37). Remove fuel injector nozzle (38) from air heater body (37). Remove  adapter  (31)  from  connector (33). Remove two connectors (33) from air heater body (37). 4-26