TM-9-2320-272-23-2

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5

SEPTEMBER 2012

  TM-9-2320-272-23-2 - Page 693 of 1417

REMOVAL
WARNING
Diesel fuel is highly flammable. Do not perform fuel system procedures near open flame.
Failure to comply may result in injury or death to personnel.
CAUTION
Cap or plug all openings immediately after disconnecting fuel lines to prevent contamination.
Failure to do so may result in damage to fuel pump.
1.
Remove seven screws (Figure 1, Item 3), banjo seals (Figure 1, Item 4), and fuel manifold (Figure 1, Item 5)
from six fuel injectors (Figure 1, Item 6) and fuel return tube (Figure 1, Item 7). Discard banjo seals.
NOTE
Tag injector tubes for installation.
2.
Loosen six fuel line nuts (Figure 1, Item 10) and disconnect fuel injector tubes (Figure 1, Item 11) from fuel
injectors (Figure 1, Item 6).
3.
Loosen six fuel line nuts (Figure 1, Item 10) and disconnect fuel injector tubes (Figure 1, Item 11) from fuel
injector pump (Figure 1, Item 9).
4.
Remove screw (Figure 1, Item 1), washer (Figure 1, Item 2), and fuel injector tubes (Figure 1, Item 11) from
cylinder head (Figure 1, Item 8).
NOTE
Tag brace assemblies for installation.
5.
Remove two screws (Figure 1, Item 25), washers (Figure 1, Item 28), tube braces (Figure 1, Item 26), and
isolators (Figure 1, Item 27) from fuel injector tubes (Figure 1, Item 11).
6.
Remove screw (Figure 1, Item 21), washer (Figure 1, Item 24), two tube braces (Figure 1, Item 22), and isolators
(Figure 1, Item 23) from fuel injector tubes (Figure 1, Item 11).
7.
Remove four screws (Figure 1, Item 12), washers (Figure 1, Item 15), two tube braces (Figure 1, Item 13), and
isolators (Figure 1, Item 14) from injector tubes (Figure 1, Item 11).
8.
Remove four screws (Figure 1, Item 16), washers (Figure 1, Item 17), two tube braces (Figure 1, Item 18),
brace (Figure 1, Item 20), and four isolators (Figure 1, Item 19) from injector tubes (Figure 1, Item 11).
TM 9-2320-272-23-2
0241
0241-2


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