TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
Page 229 of 1760
WARNING Coolant may be very hot and under pressure from engine operation. Ensure engine is cool before performing troubleshooting. Failure to comply may result in injury to personnel. (1) Remove coolant hose from overflow tank to radiator (para 6-3). (2) Place coolant hose in drain pan. (3) Start engine (TM 9-2320-365-10). WARNING NOTE Coolant flowing constantly through return hose indicates closed thermostat. (4) Observe flow of coolant from coolant hose. (5) If thermostat does not operate properly, replace thermostat (para 6-5). (6) Shut down engine (TM 9-2320-365-10). (7) Install coolant hose on overflow tank and radiator (para 6-3). (8) Refill overflow tank to proper level (TM 9- 2320-365-10). (9) Lower cab (TM 9-2320-365-10). Change 1 2-137 TM 9-2320-365-20-1 Use care when opening door with cab raised. Failure to comply may result in injury to personnel or damage to equipment. (1) Check water pump for loose hardware and damage. (2) If water pump hardware is loose, tighten hardware. (3) If water pump is damaged, replace water pump (para 6-12).