TM 9-2330-238-14
Section XIII. HEATING UNITS MAINTENANCE
Page
Paragraph Title
Number
Exhaust System Replacement.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-176
Fuel Lines and Electrical Fuel Pump Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-158
Fuel Tank Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-168
Heater Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
4-181
4-70. FUEL LINES AND ELECTRICAL FUEL PUMP REPLACEMENT.
This Task Covers:
Removal (M313, M447, M447C, and M750)
e.
Removal (M749 Southwest Model VRP, serial
lnstallation(M313, M447, M447C, and M750)
numbers V549 through V628)
c.
Removal (M749 Southwest Model VRP serial f.
Installation (M749 Southwest Model VRP serial
numbers V001 through V356)
numbers V549 through V628)
d.
Installation (M749 Southwest Model VRP, serial g.
Removal (M749 Converto Model 8929)
numbersV001l throughV356)
h.
lnstallation(M749 Converto Mode 18929)
Initial Setup:
Equipment Conditions:
Materials/Parts:
l Fuel tank drained.
. M749 Southwest Model VRP serial numbers V001
through V356
–Two Iockwashers
Tools/Test Equipment:
l General mechanic’s tool kit
through V628
– Four Iockwashers
l M749 Converto Model 8929
– Fourteen Iockwashers
a.
REMOVAL (M313, M447, M447C, AND M750) I
NOTE
For fuel pump removal only perform steps 5 and 6.
1.
Loosen two tube nuts (3) and remove tube (4) from fuel tank elbow (2) and tube tee (6).
NOTE
Each van body contains two heaters with identical fuel lines. This task removes the fuel
lines for only one heater. To remove the other fuel lines repeat steps 2 through 7.
2.
Loosen two tube nuts (7) and remove tube (8) and nonmetallic conduit (9) from tube tee (6) and fuel pump
shut-off cock (1 O).
3.
Remove fuel pump shut-off cock (1 O) from fuel pump (12).
4.
Remove three screws (16) and loop clamps (17) from tubes (14 and 18).
5.
Remove two tube nuts (5), tube (14), and nonmetallic conduit (15) from fuel pump elbow (8) and heater (l).
4-158
