TM-9-2815-225-34-P
ENGINE, DIESEL: 6 CYLINDER IN-LINE TURBOCHARGED, CUMMINS MODEL NTC-400
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2005
TM-9-2815-225-34-P - Page 298 of 736
TM 9-2815-225-34&P
0032 00
0032 00-4
FUEL INJECTOR (Contd)
ASSEMBLY
WARNING
Do not perform fuel system procedures while smoking or
within 50 ft (15.2 m) of sparks or open flame. Diesel fuel is
flammable and may explode. Failure to comply may result in
injury or death to personnel.
NOTE
Apply lubricating oil to all parts before assembly.
1.
Install check ball (9) on barrel (10).
2.
Install two roll pins (8) in barrel (10).
3.
Install barrel (10) and injector cup (11) in top-stop adapter (6). Ensure check ball (9) stays
positioned on barrel (10).
4.
Install cup retainer (12) on top-stop adapter (6) finger tight.
5.
Install plunger (1) in top-stop adapter (6).
6.
Install injector in injector stand. Tighten stud on injector stand 75 lb-in. (8.5 N
•
m) to align
injector cup (11) with plunger (1). Using body and injector cup wrench, tighten cup retainer (12)
53–57 lb-ft (72–77 N
•
m). Remove injector from injector stand.
NOTE
To check plunger to injector cup alignment, perform steps 7
through 12.
7.
Remove plunger (1) from top-stop adapter (6) and coat plunger (1) with diesel fuel.
8.
Allow diesel fuel to run off plunger (1) into top-stop adapter (6) and barrel (10).
9.
Install plunger (1) in barrel (10) leaving a 0.050 in. (1.27 mm) gap between top of plunger (1) and
top-stop adapter (6).
10.
Seat plunger (1) in injector cup (11) by pushing down.
11.
Hold plunger (1) firmly in injector cup (11) and rotate 90°.
12.
Turn injector over and release plunger (1). Plunger (1) should slide out immediately. If plunger
(1) does not slide out. Plunger (1) and injector cup (11) are not aligned. Disassemble injector and
realign.
13.
Repeat steps 7 through 12 until correct plunger (1) to injector cup (11) alignment is obtained.
14.
Install three new gaskets (7) on top-stop adapter (6).
CAUTION
Do not change position of orifice plug located behind filter
screen. orifice plug has been pre-set. Damage to injector or
improper fuel delivery will result if orifice plug is adjusted.
15.
Install new gasket (15), new filter screen (14), and filter screen clip (13) in top-stop adapter (6).
16.
Install new injector spring (5), washer (4), and plunger (1) in top-stop adapter (6).
17.
Install top-stop locknut (2) and top-stop screw (3) in top-stop adapter (6).
18.
For installation of fuel injector, refer to WP 0043 00.
Back to Top
