TM 5-2420-224-20-2
COOLANT EXPANSION TANK FILLER CAP PRESSURE TEST
This task covers: Test
I N I T I A L S E T UP
Tools and Special Equipment:
General Safety Instructions:
Adapter, Leak Check Device,
P/N 000 589 75 63 00
Detector, P/N 001 589 83 21 00
Equipment Condition:
Reference
Condition Description
Page 4-389
Inside Engine Hood
Removed
W A R N I N G
BURN HAZARD
A l l o w e n g i n e t o c o o l b e f o re
performing maintenance on the
m u f f l e r,
e x h a u s t p i p e , o r
exhaust manifold. If necessary,
use insulated pads and gloves.
T E ST
1.
2.
3.
4.
5.
6.
7.
Remove filler cap (1) from coolant expansion tank (2).
Attach adapter to detector.
Install filler cap (1) on adapter.
Connect air hose (3) to detector.
Apply 14 psi (1 bar) to filler cap (1) and note opening pressure. Opening pressure should be 10 ±1.5
psi (0.7 ± bar).
Remove and discard filler cap (1) if opening pressure was not 10 ±1.5 psi (0.7 ±1 bar).
Install new filler cap (1) on coolant expansion tank (2).
NOTE
Follow-on Maintenance:
Install inside engine hood (page 4-389).
4-90
