TM 9-2320-260-34-2
17-12. ENGINE COOLANT HEATER TESTING (Contd)
NOTE
Coolant container must be vented and raised above the test
apparatus in order for thermosyphon circulation to occur.
Fuel pump, fuel filter, heater, wiring harness, fuel tubing,
control box, and coolant must be the same type used on vehicle.
KEY TO TEST EQUIPMENT ARRANGEMENT
10. Coolant inlet hose
1.
Electric fuel pump
11. Power source lead
2.
Fuel tubing
12. 24-volt DC power source
Fuel filter
3.
13. Multimeter
4.
Fuel flowmeter
14. Coolant
5.
Fuel shutoff valve
15. Wiring harness
6.
Coolant outlet hose
16. Control box
Thermometer
7.
17. Fuel container
8.
Coolant container
Coolant shutoff valve
9.
17-29
