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 136 of 343
TM 9-2350-358-BD
5-13.
FUEL LINE (LOW PRESSURE) RUPTURE - CONTINUED
3.
Clean the tubing ends.
WARNING
Adhesives, solvents, and sealing compounds can burn easily, can
give off harmful vapors, and are harmful to skin and clothing.
To
avoid injury or death, keep away from open fire and use in well-
ventilated area.
If adhesive, solvent, or sealing compound gets on
skin or clothing, wash immediately with soap and water.
4.
Apply sealant to tubing ends.
5.
Using two, 2 inch sections or rubber hose, install the replacement bend.
6.
Clamp with hose clamps or tightly twisted wire.
7.
Record the BDAR action taken.
When the mission is complete, as soon as practical, repair the equipment/system
using standard maintenance procedures.
5-14.
FUEL INJECTOR LINE, RUPTURE
General Information:
a.
If a high pressure fuel line is damaged and there is no time for a better repair, cut the line and weld or crimp shut
the injector pump side.
The engine will run for a limited time on fewer cylinders.
b.
If a replacement line is not available, repair the defective line.
Remove it from the vehicle and clean it.
Braze pin
holes closed.
If the hole is too large for this procedure, cut out that section of line.
Use a piece of slightly larger
metal tubing as a sleeve, overlapping both cut ends of the injector line.
The sleeve should fit tightly over the
injector line.
If it is too loose, crimp to get a tight fit.
Then braze or silver solder both ends of the sleeve to the fuel
line.
SECTION V.
FUEL FILTERS
5-15.
GENERAL
The howitzer has two fuel filters, the primary and secondary fuel filters are accessible through the transmission doors.
The
filters must be checked for dirt or water to keep the fuel uncontaminated and flowing freely.
Filters do, however, become
clogged with dirt and the container collects water in cold weather the water can freeze and stop the flow of fuel.
Only as a
last resort should the filters be by-passed and allow unfiltered fuel to reach the engine.
5-19
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