Kohler KDI Series

44
2
_07
Fig. 2.31
Fig. 2.32
1
2
C
BA
D
D
3
5
4
6
ED0053029590
TECHNICAL INFORMATION
ECU AND ENGINE IDENTIFICATION PLATES
POS. DESCRIPTION
1 Engine model
2 Validation code
3 Engine specications
4 Bar Code of the engine chassis number
5 Engine chassis number
6 ECU identication code
A Connector A (ECU A)
B Connector B (ECU B)
C Barometric capsule
D Fastening points
Tab. 2.33
2.13.2 Control unit (ECU)
E.C.U. CONTROL UNIT (Electronic control unit)
The ECU is a central processor, which monitors and controls
engine operation.
The electronic control unit is responsible for engine
management.
It is tted on the frame of the vehicle, or in the cab (refer to
the technical documentation of the vehicle).
Important
• The ECU must only be used with the configuration defined
by KOHLER, for each individual engine.
2.13.2.1 Installation rules
• Protection degree: 1P 6K/9K.
• Operating temperature: -40°C - +100°C.
• Storage temperature: -40°C - +100°C.
• Do NOT install the ECU on the engine. It should be mounted
on the frame of the vehicle / plant in a position where it will be
well cooled, mechanically protected, and free from vibration
and ingress of moisture.
• It is crucial that the ECU is earthed. Electrical connection
may be as follows: by means of four fixing points
D of the ECU to the vehicle brace, thus ensuring
good connection (avoid painted or insulated parts).
Alternatively, connect using a cable (with 4mm2 section and
a maximum length of 300 mm) from one of the ECU fixing
points D to a plate of mass, taking care to ensure perfect
electrical contact.
• Do NOT mount or replace the control unit with that of another
engine.
• Although externally each ECU seems to be identical,
internally they are specifically configured only for use on the
engine that they are supplied with.
• The control units are not interchangeable nor modifiable.
• Each control unit is accompanied by its adhesive
identification plate.
• The position of the ECU in an application must be done
carefully to protect barometric capsule C from liquids (during
engine washing or engine/vehicle maintenance).
• The connection area (ECU connectors A-B) must not be the
lowest point of all the wiring to prevent any water infiltrations
in the wiring itself.