TM 5-4520-244-14
HOW TO TEST THE HEATER FUEL PUMP
- PRESSURE TEST -
1. Disconnect elbow from fuel line (A)
and install tee (B).
Install 200 psi gage in tee.
2.
Start up heater and
observe pressure gage.
For proper operation,
gage should read between
140 psi and 150 psi.
3,
To adjust pressure--
Remove nut
T u r n screw:
. clockwise to increase
. counterclockwise to
decrease
4.
Install pump nut.
Stop heater.
Remove gage and tee (B).
Reconnect elbow and line (A).
Fuel Pump Pressure Test.
Figure 4-8.
4-30
