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 155 of 343
TM 9-2350-358-BD
6-11.
HOSE LEAKAGE - CONTINUED
References:
•
TM 9-2350-314-10
•
TM 9-2350-314-20-1-1
Procedural Steps:
1.
Gain access to leaking hose.
2.
Clean dirt and oil from damaged area.
3.
Coat the damaged area with gasket sealer.
4.
Cut a metal patch from a tin can or other thin metal.
5.
Bend the metal into a cylindrical shape the size of the damaged hose and coat the inside with sealer.
6.
Wrap the metal patch over the damaged hose.
7.
Secure the patch with adjustable clamps or tape.
8.
Record the BDAR action taken.
When mission is complete, as soon as practical, repair the equipment/system
using standard maintenance procedures.
6-12.
HOSE COLLAPSE
When the rubber in the coolant hoses starts to deteriorate it becomes soft and has a spongy feeling.
Overheating
problems that occur only at high engine speeds are normally from a deteriorated hose on the suction side of the water
pump collapsing.
The hose can be reinforced by inserting a rigid hollow object like a can or wire coiled to prevent the hose
from collapsing.
The inserted item will help the hose remain open even though the suction is trying to close it.
Operate at
reduced engine speed.
Limitations:
None
6-17
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