Linhai ATV 500-D T3 EFI Service Manual page 157

CHAPTER 3 ENGINE
being exposed to these ambient conditions.
  N ormal Operating Temperature Range: - 30 to 125 C
  E xtreme Operating Temperature Range (some performance degradation): - 40
to 150 C
  S torage Temperature Range: -60 to 60 C
3.6.2.2.7Fuel Contamination
The injector fuel inlet filter protects the fuel injector from initial build fuel
contamination as well as from fuel system assembly contamination. Filtration is
extremely important because particle contaminants can cause an injector to stick
open, flow shift or tip leak.
The injector inlet filter is not a serviceable component and is designed only to trap
potential built-in contamination between the chassis fuel filter and injector.
3.6.2.2.8Wire Routing
  E lectrical wiring to the injector should be routed so that conductors are
protected from excessive heat, damage, and wear.
  A void unnecessary handling (disconnecting and connecting) of the electrical
connector.
3.6.2.2.9 Handling - DOs & DONTs
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.
DO NOT: Store injectors, rails, or
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.
DO: Use proper lubricants on seal ring surfaces
to install injector in engine. Minimize time
between applying lubricant and inserting injector
/rail.
DO: Pulse (actuate) stuck closed or tip-leak
suspected injector (Actuate consists of one
pulse<5 sec duration at 9 to 15V).
DO: Pulse (actuate) injectors prior to a dry fuel
LH500ATV-D T3 EFI SERVICE MANUA 19.0
REASON
Leakage.
Can plug injector spray orifices.
Damage to internal mechanical components.
Can dislodge internal contamination if
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.
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
Avoid damage to seal ring during
installation.
Avoid contamination at seal.
To verify the injector failure
Injector valves may not reseat without fuel
CHAPTER 3 ENGINE PAGE. 3- 124