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TM 10-4320-351-14
g.
Attach control rod (6) to fuel injection pump(s) (8) and secure with spring clip (9).
h.
Install nuts (10) securing injection pumps (8) to crankcase (2).
NOTE
For steps "i" and "j", install previously removed washers (13 and 20) that were
saved for use later in injector pump timing and delivery tests.
i.
Connect fuel supply line (11) (to fuel pump) by installing union (12), washers (13) and union bolt (14).
j.
Connect fuel return line (15) and injector return line (16) by installing union bolt (17), unions (18 and 19) and
washers (20).
6.4.19 Clean Fuel Injector Nozzle. (Refer to figure 6-43.)
This task consists of:
a. Disassembly
b. Cleaning
c. Assembly
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Combination Wrench, 15 mm
Safety Wire (or other steel wire), 0.25 mm
(Appendix B, Section III, Item 3)
(Appendix F, Section II, Item 17)
Vise
(Appendix B, Section III, Item 3)
Equipment Condition:
Fuel injector removed (para. 6.3.10)
a.
Clamp inlet end (1) of injector in vise.
b.
Loosen retaining (2) nut on injector nozzle.
c.
Carefully disassemble injector, noting order of components for assembly.
d.
Using a 0.01 in. (0.25 mm) steel wire, clean the four nozzle tip holes (3). Inspect holes for wear or out-of-round
condition. If holes are badly deformed, replace injector.
e.
Blow out interior of injector to remove any debris.
f.
Assemble injector components in order shown.
g.
Torque nozzle retaining nut to 25 ft. lbs. (34.3 Nm).
6-69
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