TM 9-2320-209-20-3-4 23-20. HOT WATER PERSONNEL HEATER BLOWER MOTOR REPAIR. TOOLS: Flat-tip screwdriver SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedure. Open hood and left side panel. Refer to TM 9-2920-209-10. b. Removal. FRAME 1 1. Unplug electrical lead connector (1). 2. Using screwdriver, unscrew and take out four screws and lockwashers (2). 3. Take blower motor (3) out of blower housing (4). END OF TASK 23-56