TM-9-2320-361-24-2 Field Maintenance Manual Volume 2 for M44A2 Series Trucks
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TM 9-2320-361-24-2 0424 00 0424 00-2 ENGINE COOLANT HEATER BURNER MAINTENANCE (Contd) REMOVAL Remove four nut-assembled lockwashers (5), clamps (6), hook bolts (7), burner (4), O-ring (3), and gasket (2) from heater exchanger (1). Discard O-ring (3) and gasket (2). Discard nut-assembled lockwashers (5). CLEANING AND INSPECTION WARNING • Skysol 100 solvent is combustible; DO NOT use or store near heat, sparks, flame, or other ignition sources. Use mechanical ventilation whenever product is used in a confined space, heated above ambient temperatures, or agitated. Keep container sealed when not in use. Contact with Skysol 100 may cause skin irritation. Use chemical-resistant gloves. In case of skin contact, remove any contaminated clothing and wash skin thoroughly with soap and water. Wash contaminated clothing before reuse. Eye contact may cause irritation, tearing, or blurring of vision. Use face shield or goggles when eye contact may occur. In case of eye contact, flush eyes with large amounts of water for at least 15 minutes or until irritation subsides. Inhalation may cause irritation to upper respiratory passages. DO NOT have food or drink in the vicinity. Failure to comply may result in injury to personnel. • Compressed air source must not exceed 30 psi (207 kPa). When cleaning with compressed air, eyeshields must be worn. Failure to wear eyeshields may result in injury to personnel. Inspect burner (4) for scorched and charred surfaces. If scorched or charred, clean burner (4) surfaces with wire brush, wipe clean with Skysol 100 solvent, and dry with compressed air. Replace burner (4) if insulating pad is charred or parts are missing. INSTALLATION 1. Position new gasket (2), new O-ring (3), and burner (4) on heat exchanger (1) and install with four hook bolts (7), clamps (6), and new nut-assembled lockwashers (5). 2. Install engine coolant heater fuel tube and preheater resistor (WP 0423 00). 3. Connect battery ground cable (WP 0126 00). 4. Release parking brake and remove wheel chocks (TM 9-2320-361-10).