TM 5-3825-229-14&P
6-14. FUEL INJECTORS (cont)
c.
Disassembly (cont).
(12) If nozzle needle fails test, clean the nozzle again and retest it. Any nozzle needle and tip failing the slide
test must be replaced. Replace tip and needle as an assembly.
(13) Inspect spring (4) for kinks, bends and damage. Inspect disc (6) and thrust pin (5) for wear and damage.
(14) Replace all worn or damaged parts.
d.
Assembly.
(1)
Thoroughly rinse all parts of the fuel injector assembly in clean diesel fuel.
(2)
Slide nozzle tip (8) and nozzle needle (7) into tip nut (2). Install disc (6) in tip nut (2) with smooth, flat face
against needle and tip.
(3)
Place thrust pin (5) into bore of disc (6). Install shims (3) (same amount as removed in c. above) and
spring (4) in upper nozzle body (1).
(4)
Thread upper body (1) into tip nut (2) just enough to hold parts in place.
(5)
Mount the upper body (1) in a vise with copper jaws and tighten tip nut to a torque of 30 to 35 !b-ft (41-48
Nm) (wet).
6-44
