TM 10-7310-281-13&P
MODERN BURNER UNIT (MBU)
0023 00
UNIT MAINTENANCE PROCEDURES
0023 00-13
Replacing Neoprene Fuel Line. To replace the neoprene fuel line (1), temporarily remove the Fuel
Delivery Block from the Burner Tube mounting shafts as described earlier.
Squeeze the tabs on hose clamp (2) with a pair of pliers and slide the clamp off the fuel delivery block
fitting (3) and onto the neoprene line (1). If it is necessary to replace the fitting (3), remove with a wrench
and install a new fitting .
Squeeze the tabs on hose clamp (4) with a pair of pliers and slide the clamp off the vent valve fitting (5)
and onto the fuel line (1).
After removing the clamp, grasp the end of the fuel line (1) connected to the fuel delivery block fitting (3)
and pull while wiggling from side to side, until the line is free.
Remove the end of the fuel line (1) connected to the vent valve fitting (5) in a similar manner. Be sure to
wipe up any fuel that may have dripped from the line. If the vent valve fitting (5) needs replacement,
unscrew and install a new vent valve fitting.
Using the damaged fuel line as a size guide, cut a new piece of fuel line of the same size from the bulk
supply of neoprene hose.
Remove the clamps (2,4) from the damaged fuel line and install on the new line, sliding each about 1-1/2
to 2 inches from the end.
Reinstall the new line, pushing one end fully onto the fuel delivery block fitting (3) and the other end onto
the vent valve fitting (5).
Squeeze the tabs on the clamps (2,4) with a pair of pliers and slide one clamp up on the fuel delivery
block fitting (3) and the other end onto the vent assembly fitting (5). Be sure to position the tabs so that
they can be easily accessed should service be required at a later date.
Replacement of Neoprene Fuel Line
1
1
4
2
5
3
