TM 5-3805-281-24-1
Tests
FUEL LINE LEAKAGE TEST
SPECIFICATIONS
Fuel Line Leakage Test Pressure
69 kPa (0.7 bar) (10 psi)
To Prevent Fuel System
103 kPa (1 bar) (15 psi)
Component Damage Never
Exceed Maximum Pressure
Connections may allow air to enter the fuel system without
allowing fuel to leak out. Use the following procedure to
find air leaks in the system.
9010
25
2
1. Disconnect fuel supply and fuel return lines at fuel
tank.
2. Drain all fuel from system, including fuel transfer pump,
fuel injection pump, and fuel filter(s).
3. Close end of fuel return line using a plug, cap, or a
short length of hose, plug, and clamps.
IMPORTANT: Never exceed 103 kPa (1 bar) (15 psi) to
prevent damage to fuel system
components.
4. Pressurize the system to specification at the fuel
supply line using a regulated pressure air source.
Fuel Line Leakage Test--Specification
Pressure ............................................................. 69 kPa (0.7 bar) (10 psi)
To Prevent Fuel System Component Damage Never Exceed
Maximum--Specification
Pressure ............................................................. 103 kPa (1 bar) (15 psi)
5. Apply liquid soap and water solution to all joints and
connections in the fuel system and inspect for leaks.
6. Repair any leaks.
7. Connect supply and return lines and prime system.
8. Start machine and let run for approximately 10
minutes.
CED,TX08227,3000
1925NOV971/1
