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2．Handling - DOs & DONTs
3.5 FUEL INJECTOR HANDLING
ACTION
DO NOT: Re-use injector seal rings if at all
possible.
If no other choice exists, take
extra care in inspecting the seal rings for
damage.
DO NOT: Dip injector tips into lubricants.
DO NOT: Cycle injector repeatedly without
fuel pressure.
DO NOT: Pulse (actuate) a suspected high
leak rate injector (leak >50 sccm air).
DO NOT: Allow water to enter fuel system
from air lines, etc. during leak checks.
DO NOT: Contact or apply load to the
injector tip for installation.
DO NOT: Pound injectors into manifold
during assembly to engine.
DO NOT: Apply excessive side loads to
electrical connectors.
DO NOT: Use any dropped unit.
Store
DONOT:
subassemblies including engines on which
the injectors have been installed in an
unprotected environment.
DO NOT: Use the injector as a handle.
DO NOT: Rack, stage, or handle parts in a
manner that allows contact between parts.
DO NOT: Remove packing in a way that
allows contact between parts.
DO NOT: Tap on fuel injectors to correct any
malfunction.
DO NOT: Replace the injector with other
part number not recommended for this
application
DO: Take extra care when installing new
fuel seal ring over injector inlet flange.
ENGINE MANAGEMENT SYSTEM
injectors,
rails,
Leakage.
Can plug injector spray orifices.
Damage to internal mechanical components.
Can
dislodge
present and preclude root cause analysis.
Can damage injectors.
Apply load to 45 deg angle on nylon over
mold see
Can damage injectors or seal rings.
May cause loss of electrical continuity.
Internal damage may have occurred.
or
External contamination can damage the
injector electrically and/or mechanically.
Do not use the injector to lift assemblies
Damage will occur.
Damage could occur due ton contact
between parts.
Can damage injector.
Will severely affect the performance of the
injector
Prevent tearing seal ring during installation.
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REASON
internal
contamination
if
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Troubleshooting
