105
Keep the needle valves with their respective bodies
(b)After cleaning the tip, install it in the
nozzle and tighten the retaining nut to
the specified torque.
(c)If the injection nozzle is still bad after
the tip has been washed, replace the tip.
a)Do not touch the sliding surface of the
needle valve.
b)When installing the new nozzle tip,
remove synthetic resin film from the tip
and slide the needle valve in the body in
clean diesel fuel to wash off inhibitor
completely.
(3)Nozzle tip washing and replacement
(a)Loosen the retaining nut and remove the
tip from the injection nozzle. Wash the
needle valve and body in clean diesel
fuel. After washing, put the needle
valve in the body in clean diesel fuel.
Do not hit the tip when removing it from the
injection nozzle.
Disassembly sequence and inspection points
(1) Retaining nut
(2) Nozzle tip assembly
(3) Piece
9 0.5 kgf•m
(65 4 lbf•ft)
[88 5 N•m]
Tightening torque
(4) Pin
(5) Spring
(6) Washer
(7) Body
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