Iveco NEF N40-ENT-M25, Руководство по установке

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installation directiVe
26
MAY 2006
N40 ENT M25
N60 ENT M37-M40
Indications and alarms module
1. Runaway engine (SSV) - 2. Presence of water in fuel pre-
filter (SAC) - *3. Low coolant level (SBLA) - 4. Alternator fault
(SS) - *5. Clogged oil filter (SIFO) - *6. Clogged oil vapor filter
(SIFB) - *7. Pre-lubrication (SP) - 8. Clogged air filter (SIFA)
- *9. Clogged fuel filter (SIFC) - 10. High coolant temperature
(SATA) - 11. Low oil pressure (SBPO) - *12. Pre-post heating
(SCP) - 13. EDC malfunction (EDC).
* Unavailable functions on N40 ENT M25, N60 ENT M37
and N60 ENT M40 engines.
The indications and alarms module comprises the indicator
lights and the electronic alarm interface, timing and stor-
age circuit. It is programmed in such a way that when it is
powered, all indicator lights are lighted, with the exception
of those for “pre-lubrication”, “pre-post heating” and “EDC”
failure and a sound signal is emitted by the buzzer.
The sound alarm may be silenced before the end of the test,
acting on the appropriate control.
During the starting phase and for the subsequent 15 sec-
onds, needed to stabilize the low oil pressure signal, all the
module’s functions are inhibited; once this time interval has
elapsed, every alarm state detected by the sensors will cause
the associated indicator to be lighted and the buzzer to be
powered; the exceptions are the “pre-lubrication” and “pre-
post heating” indicators, given only visually.
When a new alarm state is detected, the indicator light will
flash to highlight the occurrence with respect to any others
which may be ongoing at the time. When the sound alarm is
shut off, the light indicator will remain lighted and the alarm
will be stored until the engine is stopped.
The standard set-up of the N40 ENT M25, N60 ENT M37
and N60 ENT M40 provides for use of the indicators SAC,
SS, SIFA, SATA, SBPO, EDC.
Installation
In order to drill holes on the area where the panel is to be
mounted, refer to the dimensions indicated in Chapter 11.
Operation of the panel
After completing the electrical connections and engine
preparation, perform the tests required for the first start, as
described in Chapter 18.
Verify the proper operation of the panel, proceeding as
follows:
o
Make sure that the “ENGINE ROOM / BRIDGE” switch
of the Relay Box is in the “BRIDGE” position, then turn
the key switch to the first position and verify that the
instruments are powered and the indications and alarms
module runs the alarm test for about 5 seconds accord-
ing to the procedures set out below.
o
Once the test is complete, only the indications pre-
scribed for the engine not running must remain lighted:
e.g. “alternator charge” and “low oil pressure”; the analog
instruments must provide values consistent with the
relevant physical parameters.
Testing the engine start function
Turn the key switch to the second position and keep it in it
until the engine has started, then release the switch, which
will stably return to the first position; after releasing the key,
the switch may be brought back to the starting position only
after the switch is returned to the resting or zero position.
Checking indications
After starting the engine, verify whether the operating
modes of the indications and alarms module are similar to
those set out below.
Using appropriate measuring instruments, verify the consist-
ency of the indications provided by the analog instruments.
NOTE
Do not disconnect the connector 14 (see Figure 18) to
avoid wrong fuel filter clogging alarm indication.
Verify the indication of the panel revolution counter, compar-
ing it with the one measured by a reference instrument; if the
indication is different, proceed as described below.
Testing the engine stop function
The engine is stopped and the panel is disabled by returning
the key switch to the resting or zero position.
If the engine stopping function if stressed is present, press
the stopping button situated on the board. This function is
authorised only if the ECF and ECM connectors (present on
the new model wiring) have been connected to each other.
Figure 21
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