TM-9-2350-358-BD
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6
TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE
MARCH 1994
TM-9-2350-358-BD - Page 145 of 343
TM 9-2350-358-BD
6-7.
THERMOSTAT STUCK - CONTINUED
Personnel/Time Required:
•
1 soldier
•
1.0 hour
Materials/TooIs:
14.5 gallons of liquid
References:
•
TM 9-2350-314-10
•
TM 9-2350-314-20-1-1
Procedural Steps:
1.
Remove and dispose of thermostat.
2.
Reconnect thermostat housing.
3.
Refill cooling system with liquid.
4.
Check for leaks.
5.
Record the BDAR action taken.
When mission is complete, as soon as practical, repair the equipment/system
using standard maintenance procedures.
6-8.
ENGINE COOLANT FROZEN
General Information:
During cold weather, inadequate antifreeze protection will cause the coolant to freeze.
Care must be taken when thawing
the cooling system that further damage is avoided.
The water pump may be unable to turn which will damage engine as
well as the pump itself.
The thawing procedure must include frequent inspections for leaks which will indicate cracked or
broken components.
Engine temperature must also be monitored to prevent overheating damage.
Limitations;
None if engine is left running or antifreeze protection is upgraded.
Personnel/Time Required:
•
2 soldiers
•
0.5-1.0 hour
References:
TM 9-2350-314-10
6-7
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