TM 9-2320-361-20 11-43. PERSONNEL HEATER DEFROSTER HOSES REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: APPLICABLE MODELS EQUIPMENT CONDITION All Parking brake set (TM 9-2320-361-10). REFERENCES (TM) TM 9-2320-361-10 TM 9-2320-361-20P 1. Loosen clamp (4) and remove defroster hose (3) from diverter (2). 2. Loosen clamp (5) and remove defroster hose (3) from defroster duct (1). b. Installation 1. Install defroster hose (3) on defroster duct (1) with clamp (5). 2. Install defroster hose (3) on diverter (2) with clamp (4). 11-85