5.4
FUELSYSTEM
92.4mm STROKE SERIES WSM,
01092
Fuel
Tightness
of
Needle Valve Seat
I.
Set
the
injection nozzle to a nozzle tester.
Apply a pressure 130kgfkm2
(12.75
MPa, 1849 psi).
2.
After keeping the nozzle under
this
pressure for
10
seconds, check
to
see
if
fuel leaks from the
nozzle.
3.
If
fuel should leak, replace the nozzle piece.
01
07F076
DI
SASSE
M
B
LI
NG
AND
ASS
EM
BUNG
[I]
INJECTION
PUMP
c1
12F007
[Z]
INJECTION
NOZZLE
IMPORTANT
0
If
replacing the pump element, the amount
of
fuel
injection should
be
adjusted on a specified bench.
(1)
PumpBody
(2) Control Rack
(3)
Delivery Valve Holder
(4)
Delivery
Valve
Spring
(5)
Delivery
Valve
(6)
Tappet Roller
(7)
Cylinder
(8)
Plunger
Nozzle Holder
1.
Secure the nozzle retaining nut
(7)
with
a vise.
2.
Remove the nozzle holder
(l),
and take out parts
inside.
(When reassembling)
0
Assemble the nozzle
in
clean fuel oil.
0
Install the push rod (4), noting
its
direction.
0
After assembling the nozzle, be sure to adjust the
(1)
Nozzle Holder
(2)
Adjusting Washer
(3)
Nozzle Spring
(4)
PushRod
(5)
Distance Piece
(6)
Nozzle Piece
(7)
Nozzle Retaining Nut
fuel injection pressure.
s-109
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