TM-9-2320-361-24-1 Page 679

TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks

Page 679 of 1176

TM 9-2320-361-24-1 0079 00 PERSONNEL HEATER INLET AND OUTLET HOSE REPLACEMENT (Contd) 0079 00-3/4 blank END OF WORK PACKAGE 5 6 4 3 7 8 4 4 9 10 1 2 1 INSTALLATION (Contd) CAUTION • Type 1, ethylene glycol (green) and Type 2, propylene glycol (purple), should never be mixed due to their differences in toxic properties. Failure to comply may result in damage to equipment. • Using antifreeze without mixing it with water can cause high operating temperatures, blockage of cooling system passages, and damage to water pump seals. NOTE Type 1 antifreeze is an ethylene glocol based coolant, green in color, and is the only authorized antifreeze for military vehicles. Type 1 can be added to factory filled pink coolant. When it becomes necessary to flush factory coolant, Type 1, ethylene glycol will be used. When mixing Type 1 antifreeze with water, distilled water is recommended. Tap water should only be used in emergency situations. 4. Check level of antifreeze and add as necessary. 5. Connect battery ground cable (WP 0126 00). 6. Lower and secure hood (TM 9-2320-361-10). 7. Release parking brake and remove wheel chocks (TM 9-2320-361-10).