TM 5-3895-383-24
958140 Cooling System Pressurizing Group
The 9S8140 Cooling System Pressurizing Pump Group is used
to test pressure caps and to pressure check the cooling system
for leaks.
DO NOT loosen the filler or pressure cap on a hot engine.
Steam or hot coolant can cause severe burns.
To check the pressure cap for the pressure that makes the
pressure cap open, use the procedure that follows:
1.
Remove the pressure cap from the radiator.
2.
Put the pressure cap on the 9S8140 Cooling System
Pressurizing Pump Group.
3.
Look at the gauge for the exact pressure that makes the
pressure cap open.
4.
Make a comparison of the reading on the gauge with the
correct pressure at which the pressure cap must open.
5.
If the pressure cap is defective, install a new pressure
cap.
Testing Radiator And Cooling System For Leaks
Tools Needed
9S8140
Cooling System Pressurizing Pump Group
1
To test the radiator and cooling system for leaks, use the
procedure that follows:
DO NOT loosen the filler or pressure cap on a hot engine.
Steam or hot coolant can cause severe burns.
1.
Remove the pressure cap from the radiator.
2.
Make sure the coolant is over the top of the radiator
core.
3.
Put the 9S8140 Cooling System Pressurizing Pump
Group on the radiator.
4.
Get the pressure reading on the gauge to 20 kPa
(3 psi) more than the pressure on the pressure cap.
5.
Check the radiator for outside leakage.
6.
Check all connections and hoses for the cooling system
for outside leakage.
7.
If you do not see any outside leakage and the pressure
reading on the gauge is still the same after 5 minutes,
the radiator and cooling system does not have leakage.
If the reading on the gauge goes down and you do not
see any leakage, there is leakage on the inside of the
cooing system. Make repairs as necessary.
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