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Initial Assembly:
The only assembly required of the LeakMaster NE240 is to install the quick-connect fitting to the
rear of the water separator / filter, located on the back of the tester.
Note: The LeakMaster NE240 arrives filled with a full charge of Smoke-Producing Solution
that will last approximately 1000 tests before the solution may need to be replenished.
Dual-Phase Function in the EVAP System:
Unique to its design, the LeakMaster NE240 has a Dual-Phase function. Phase-one tests the
integrity of the vehicle's evaporative emissions system by quickly determining if in fact a leak
exists. Phase-two quickly finds the leak by utilizing Diagnostic Smoke leak detection technology,
including its exclusive UltraTraceUV marked-vapor dye.
This dual-phase operation is accomplished automatically. Your LeakMaster NE240's internal
pressure regulator automatically sets the critical pressure and flow rates that must be maintained
during EVAP testing. Your LeakMaster NE240 is spill-proof, is self-calibrating, and requires a
minimum amount of maintenance.
Evaporative Emissions System Overview:
The vehicle's Fuel Vapor Recovery System is the most neglected part of the
vehicle's emission system, according to the Environmental Protection Agency
(EPA).
The vehicle's EVAP system is used to collect fuel vapors from the fuel tank. These vapors are
stored in a canister filled with activated charcoal. The EVAP system allows the fuel vapors to be
drawn from the canister and combust during certain operating conditions. This process is called
canister purging since the fuel vapors are purged from the canister. OBD-II requires Powertrain
Control Module (PCM) monitoring for proper operation of the EVAP system and for possible leaks
to the atmosphere.
A faulty EVAP system will allow hydrocarbons (HC) to escape into the atmosphere. Factory
emission tests have determined that an EVAP system with a leak as small as .020 can yield
an average of 1.35 grams of HC per vehicle driven mile. This is over 30-times the current
allowable exhaust emissions standard. In addition to causing HC emissions, failure of this
system wastes fuel and many times creates customer-complaints of "gasoline odors". With the
introduction of On Board Diagnostics (OBD), the automotive industry has been capable of
determining that a vehicle's evaporative system has a leak. Prior to the LeakMaster technology,
determining where the EVAP leak was had been a difficult and time-consuming challenge.
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