Kubota WSM L3560, Workshop Manual

Page: 131 / 801

ENGINE
L3560, L4060, L4760, L5060, L5460, L6060, WSM
1-M16
Injector Drive Circuit
To increase the responsiveness of the injector, the
voltage that drives the injector is raised to a high voltage,
accelerating the magnetization of the solenoid and
increasing the responsiveness of the TWV.
The battery voltage is raised to about 110 V by a
high-voltage generating circuit inside the ECU and that
voltage is supplied to the injector to actuate it.
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Injector QR/ID Codes
Injectors are processed to exacting tolerances, but
there are minute variations in the amount they inject, so
to correct for these variations, a correction volume is
recorded on the QR/ID codes of the injectors.
During manufacture, the QR code is read by a
scanner and the correction value is registered in the
ECU.
IMPORTANT
• In order for the engine ECU to recognize and
calibrate injectors, if an injector or the engine
ECU is replaced, perform "Injector calibration"
using a diagnostics tool.
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When Replacing an Injector
Register the ID code of the replacement injector into
the ECU.
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When Replacing the Engine ECU
Register the ID codes of all of the injectors into the
replacement engine ECU.
When replacing an ECU, as it is necessary to write
all of the data, including the injector corrections, only
KUBOTA can write the data to the ECU.
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(1) Injector
(2) Rated Amperage Circuit
(3) High-voltage Generating
Circuit
(4) Control Circuit
(5) Engine ECU
(1) ID Code
(1) Engine ECU (2) Replacement Injector
(1) Replacement ECU (2) Injector
KiSC issued 03, 2016 A