Terex TS14G, Руководство по обслуживанию

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Section 110-0030
Engine - Engine and Mounting
SM 2274 03-04
2
QUANTUM ELECTRONIC FUEL SYSTEM
Description
Refer to Fig. 3.
WARNING
Before any welding is done on a machine
equipped with the Quantum Electronic Fuel
System, disconnect the following in this order:
Battery earth cable, battery supply cable,
alternator earth cables, alternator supply
cables, front & rear electrical connections at the
engine ECM connectors (located behind access
door below cab door) and front & rear
transmission ECU connectors (located on LH
side of engine). Turn off battery master switch
before disconnecting any components.
After welding connect all of the above in the
reverse order.
The engine is equipped with Quantum Electronic Fuel
System which controls the timing and amount of fuel
injection by the electronic fuel system injectors. The
system also monitors several engine functions using
electrical sensors which send electrical signals to the
electronic control module (ECM). The ECM then
computes the incoming data and determines the
correct fuel output and timing for optimum power, fuel
economy and emissions.
The Quantum Electronic Fuel System also takes
action to prevent damage to the engine and, provides
the serviceman with diagnostic capabilities so that
problems can be corrected quickly and easily.
1. Electronic Control Module (ECM) - Receives
electronic inputs from the driver as well as from
mounted sensors that provide information
electronically, such as oil pressure and temperature
and intake manifold pressure. This information is used
to control both the quantity of fuel injected and injection
timing.
2. Programmable Read Only Memory (PROM) -
Located in the ECM and encoded with the operating
software. Additional information is programmed into the
EEPROM. This information controls the horsepower
rating, torque curve, maximum engine speed and
engine protection devices. The ECM processes this
information and sends electronic signals to the
Electronic Fuel System Injectors where the precise
amount of fuel is injected into the engine.
3. Electronic Fuel System Injectors -
The injector is
a lightweight, compact unit that injects diesel fuel
directly into the combustion chamber. The amount of
fuel injected and the beginning of injection timing is
SM - 3152
Fig. 2 - Remote & in-line Fuel filter connection lines.
FILTER AND
FILTER LINES
S.W.E.
IN-LINE
FILTER
S.W.E.
Courtesy of Machine.Market