to be completely covered by the cleaning
agent, usually clean fuel oil, when sub-
merged in wire baskets of 16 mesh wire
screen.
Use baskets which support the
parts so as to avoid contact with the dirt
w h i c h settles at the bottom of the pans.
Rags should never be used for cleaning
injector parts since lint or other parti-
cles will clog parts of the injector when
it is assembled. A lint-free cleaning tis-
sue is a good, inexpensive material for
wiping injector parts.
When servicing an injector, follow the
general instructions outlined below:
1. Whenever the fuel pipes are removed
from an injector, cover the filter caps
with shipping caps to keep dirt out of
the injectors.
Also protect the fuel
C y l i n d e r Head
pipes and fuel connectors from the entry
of dirt or other foreign material.
ber at exactly the right time depends
2. After an injector has been operated in
u p o n t h i s u n i t . B e c a u s e the injector op-
an engine, do not remove the filter caps
erates against high compression pressure
or filters while the injector is in the en-
g i n e . R e p l a c e the filters only at the time
eration
demands
that
injector
of complete disassembly and assembly of
the
assembly is maintained in first-class con-
an injector.
dition at all times.
Proper maintenance
of the fuel system and the use of the re-
NOTE
commended type of fuel filters and clean,
water-free fuel are the keys to trouble
In the offset injector, a filter is
free operation of the injectors.
used in the inlet side only. No fil-
ter is required on the outlet side.
Due to the close tolerances of various
p a r t s , extreme cleanliness and strict ad-
herence to service instructions is re-
3. Whenever an injector has been re-
quired.
moved and reinstalled or replace in an
engine, make the following adjustments
Perform all injector repairs in a clean,
a s outlined in Subsection 11H.
well lighted room with a dust free atmos-
phere. An ideal injector room is slightly
A. Time the injector
pressurized by means of an electric fan
which draws air into the room through a
B. Position the injector control rack.
filter.
This pressure prevent particles
of dirt and dust from entering the room
4. Whenever an engine is to be out of
through the doors and windows. A suit-
service for an extended period, purge
able air outlet will remove solvent fumes
the fuel system, then fill it with a good
along with the outgoing air.
Also pro-
grade of rust preventative (See Section
vide a source of 110 volt alternating
VI of the Operators Manual).
current electric power.
5. When a reconditioned injector is to be
Provide the injector repair room with a
placed in stock, fill it with injector test
oil J 26400.
supply of filtered, moisture proof com-
Do not use fuel oil Install
pressed air for drying the injector parts
shipping plugs on both filter caps imme-
a f t e r t h e y h a v e b e e n c l e a n e d . U s e wash
diately after filling. Store the injector
pans of rust proof material and deep
in an upright position to prevent test oil
enough to permit all of the injector parts
leakage.
Fuel System and Governor