Table 5-3. Direct and General Support Maintenance Troubleshooting (Continued)
TEST OR INSPECTION
FORMULATION TANK WILL NOT HOLD PRESSURE (Continued)
If the tank holds the 11-14 psi pressure, the problem is solved.
If the tank does not hold the 11-14 psi pressure and there are no more leaks, go to Step 3.
Check the safety valve, the pressure regulator and the tank pressure gage. Use a test pressure gage.
Figure 5-201. Pressure Gage Installation
Remove the safety valve from the tee.
Insert a test pressure gage into the tee.
Start the engine and pressurize the formulation tank.
BE SURE to open the pressure drain valve and release the tank pressure before replacing any