Figure 11C-20. Position of
Calibrator Fuel Flow Pipes
Figure 11C-19. Injector Parts on
Auxiliary Tester
fuel oil heater switch and preheat
t h e test oil to 95-105F (35-40C).
though a slight wetting at the spray
tip is permissable.
1. Place the proper injector adaptor be-
P e r f o r m the needle valve lift test.
tween the tie rods and engage it with the
fuel block locating pin. Then slide the
adaptor forward and up against the fuel
FUEL OUTPUT TEST. Perform the injec-
tor fuel output test in calibrator J 22410
block face.
When injectors are removed from an en-
2 . Place the injector seat J 22410-226 into
gine for fuel output testings and, if sat-
the permanent seat (cradle handle in
isfactory,
reinstalled
without
vertical position). Clamp the injector in-
d i s a s s e m b l y , extreme care should be tak-
to position by operating the air valve
en to avoid reversing the fuel flow.
When the fuel flow is reversed, dirt
NOTE
trapped by the filter is back-flushed into
the injector components.
Make
sure
the
counter
(Figure 11C-22 on page 11C-14) on
Before removing an injector from the en-
the calibrator is preset to 1000
gine, note the direction of fuel flow. To
strokes. If for any reason this
avoid reversing the fuel flow when
setting has been altered, reset the
checking injector fuel output, use the
counter to 1000 strokes by twisting
appropriate adaptor. The position of the
the cover release button to the left
braided fuel inlet tube and the plastic
and hold the reset lever in the full
up position while setting the num-
fuel outlet tube on the calibrator
bered wheels. Close the cover.
(Figure 11C-20) depends on the adaptor
Refer to the calibrator instruction
being used and the direction of fuel flow
through the injector.
booklet for further information.
CALIBRATOR J 22410. To check the fu-
3.
Pull
the
injector
rack
out
to
the
el output, operate the injector in calibra-
no-fuel position.
tor J 22410 as follows (see Figure 11C-21
4. Turn the main power control circuit
switch. Then start the calibrator by
NOTE
turning on the motor starter switch.
Place the cam shift index wheel
and fuel flow lever in their respec-
tive positions. Turn on the test
Fuel System and Governor
