ARMY TM 9-6115-464-34
AIR FORCE TO 35C2-3-445-2
NAVY NAVFAC P-8-624-34
e. Testing and Adjustment.
(1) Flame Switch Adjustment. Refer to the Operator and Unit Maintenance Manual for flame switch
adjustment procedures.
(2) Fuel Regulator Valve Adjustment. Refer to the Operator and Unit Maintenance Manual for fuel
regulator valve adjustment procedures.
(3) Coolant Pump Testing. After coolant pump has been overhauled, it shall be tested as follows:
(a) Install pump and motor assembly into test setup shown in figure 5-4.
(b) Turn power switch ON and run-in unit for approximately 15 minutes on 24 volts dc.
(c) Close valve in outlet line. (Make certain the discharge pressure does not exceed a maximum of
30–35 psi when closing this valve.) Open and close valve a few times to check consistency of valve
performance.
(d) To check pump for rated flow and pressure, adjust valve in discharge line until a reading of 2 psi is
obtained on the pressure gauge. Using a suitable timer, check for rated flow of 80 gph minimum at
2 psi discharge pressure. Amperage draw should not exceed 6 amperes during this test. Observe
smoothness of operation of both pump and motor. Seal leakage of 1 cc per hour is maximum when
pump is operating at 2 psi discharge.
(e) Turn power supply OFF, then remove motor and pump assembly from test setup.
f. Installation. Refer to the Operator and Unit Maintenance Manual for fuel burning heater installation
procedures.
5-5. COOLANT LINES AND FITTINGS.
Refer to the Operator and Unit Maintenance Manual for coolant lines and fittings repair instructions.
5-6. WIRING HARNESS ASSEMBLIES.
a. Refer to the Operator and Unit Maintenance Manual for wiring harness removal, cleaning, and repair
instructions.
b. If the wiring harnesses have sustained damage and require repair or rebuild, refer to figure 5-5 or 5-6 as
required for layout, identification of material requirements and Appendix A reference for detailed soldering and
replacement procedures.
c. Refer to the Operator and Unit Maintenance Manual for wiring harness installation procedures.
5-14
