TM 55-1925-273-10-1
0041 00
MAIN ENGINE COOLANT EXPANSION TANK SIGHT GLASS
1
FULL
2
S
T
O
FULL
P
CAUTION:
REMOVE CAP SLOWLY
LOW
DO NOT OVERFILL.
R
U
N
LOW
3
1
Figure 5. Main Engine Coolant Expansion Tank Sight Glass
Table 5. Main Engine Coolant Expansion Tank Sight Glass (refer to figure 5)
Key
Control/Indicator
Function
1
Cutoff Valves
These valves secure the flow of engine coolant to the sight glass for service
or replacement.
2
Service Level Indicator
This indicator provides a visual indication of the proper engine coolant level
in the expansion tank.
3
Sight Glass
The sight glass provides a visual indication of the engine coolant level in the
expansion tank.
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