Iveco Daily Euro 4. Manual

CREATING A VACUUM IN THE SYSTEM

This operation should be carried out if all the repairs have
been performed and the system components have been
properly refitted. This operation is the phase prior to refilling,
therefore proceed as follows:

After a few minutes of operation (10 at most) if the system
has no leaks the indicator light LD2 VACUUM TEST will
also come on. From this time on, evacuation should be
continued for at least two hours to obtain a good
evacuation.

- At the end of the time programmed for evacuation, press

the switch D (vacuum test) onto position 2 and leave the
system in this state for 3-5 minutes.
The indicator light LD2 VACUUM TEST is on if the
system has a good seal. The indicator light LD2 VACUUM
TEST goes out if there is a leak. Eliminate the leak and
repeat the evacuation cycle.

- Put the switches D and B back onto position 0 and

proceed with the following phase.

- Connect the pipes to the specific system connections and

open the V1-V2/LOW and HIGH valves.

- Press the switch A (Process Unit) onto position 1.

The respective indicator light LA1 will come on.

- Press the switch B (Vacuum Process) onto position 2.

The respective indicator light LB2 will come on.

- Press the switch D (Vacuum) onto position 1. The system

will automatically start being evacuated and the respective
indicator light LD1 will come on to signal the operation
in progress.

50637

Do not run the vacuum cycle when there is even
minimal pressure in the station or system.

NOTE

The indicator light LD2 vacuum test fails to come on
if there is a leak. Stop evacuation, eliminate the leak
and repeat the evacuation procedure.

Figure 18

CAB AIR-CONDITIONING

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It is possible that at the end of each recovery cycle the station
may have recovered lubrication oil from the compressor,
which should be drained off into a specific graduated container
(1).

1 Slowly open the valve V5 (Oil Discharge).

2 When all the oil has been discharged into the container (1)

close the valve V5.

3 Quantify and record the amount of oil discharged.

4 Eliminate the recovered oil correctly.

This oil cannot be reused.
The same amount of new oil as has been removed must
be added to the system.

50638

Figure 19

CAB AIR-CONDITIONING

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RESTORING OIL IN THE SYSTEM

If during the recovery and recycle phase, oil from the system
has been removed, it must now be replenished:

- take the metering device supplied with the right amount

of lubricant for the system concerned, or previously
measured;

- connect the metering device (1) to the lubricant injection

valve V3;

- open the valve V3 and then carry out the system vacuum

phase for a few moments;

- open the valve mounted on the metering device

container (1). The oil will be drawn into the system;

- close the valve V3 and the valve on the metering device

container when the required quantity of lubricant has
been drawn in;

- disconnect the metering device (1) from the injection

valve V3 and fit the protective cap back on.

- never open the oil injection valve V3 if the system has

positive pressure;

- oil should only be injected with a vacuum in the system;

- the oil level must never fall under the suction pipe (air

would get into the system).

50639

Keep the oil containers well sealed in order to avoid
contamination. In particular, remember that oil is
extremely hygroscopic:.

NOTE

Figure 20

CAB AIR-CONDITIONING

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FILLING THE SYSTEM WITH
REFRIGERANT

Before refilling, it is wise to be aware of some important rules:
- know the quantity of refrigerant to use (it is normally

written on an adhesive plate affixed on the vehicle);

- the filler cylinder is equipped with a minimum level check

that prevents introducing incondensable gas into the
system.
This is why the last approx. 600 g of refrigerant it contains
cannot be used;

- therefore, before filling, check that the cylinder contains

a sufficient quantity for filling (maximum quantity that can
be used 3800 g);

- if the pressure inside the filler cylinder indicated on the

pressure gauge (2) is greater than as required, which can
be seen on the filler cylinder window approx. 10 bar max,
discharge the excess pressure through the valve (1) on
the pressure gauge assembly to bring it down to the right
level, reading the value on the pressure gauge.

50640

To transfer refrigerant from an external bottle to
the filler cylinder and vice versa, refer to the
equipment manual.
Considering that the amount of refrigerant depends
on its pressure, to know the actual weight it is
necessary to turn the outside of the filler cylinder so
the line of the diagram matches the level viewer. In
this way we can know the exact quantity of
refrigerant in the cylinder (starting weight).
When calculating the weight of the refrigerant, in
addition to the 600 g that cannot be used,
remember to increase the load by approximately
100 g (this is the weight of refrigerant contained in
the station-system connecting pipes). The right
quantity of refrigerant to introduce into the system
will therefore be given by: 600 g + 100 g + (quantity
referred to the system capacity).
Always check before filling that the indicator on the
”console” shows the refrigerant contains no
moisture, in which case the indicator will be bright
green. If this is not so, replace the filters in the station
as instructed in the equipment manual.

NOTE

Figure 21

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VEHICLE

COMPRESSOR

R134 COULANT

QUANTITY PROVIDED

FOR IN SYSTEM

COULANT

QUANTITY CONTAINED

IN THE PIPINGS

(150 cm length)

THAT ARE USED FOR

RECHARGING

COULANT TOTAL

QUANTITY TO BE SET

ON CHARGING TOOL

OIL QUANTITY TO BE
ADDED INTO SYSTEM

AT EACH ND 8 TYPE

CHARGING

DAILY (8140 engine):

WITH CAB, VAN, SPECIAL

ITEMS, 6+1

SC 08

OPT 6650

720 g

100 [g] for low pressure

pipe, 100 [g] for high

pressure pipe

1020 g

30 g

DAILY (8140 engine):

WITH CAB, VAN, SPECIAL

ITEMS, 6+1

DENSO 10 PA 17

OPT 6652

720 g

100 [g] for low pressure

pipe, 100 [g] for high

pressure pipe

1020 g

40 g

DAILY (F1A engine):

WITH CAB, VAN, SPECIAL

ITEMS, 6+1

DENSO 10 PA 17

OPT 6652

720 g

100 [g] for low pressure

pipe, 100 [g] for high

pressure pipe

1020 g

40 g

DAILY (F1A engine):

COMBI

DENSO 10 PA 17

OPT 6652

1200 g

100 [g] for low pressure

pipe, 100 [g] for high

pressure pipe

1500 g

40 g

DAILY (F1C engine):

WITH CAB, VAN, SPECIAL

ITEMS, 6+1

DENSO 10 PA 17

OPT 6652

440 g

100 [g] for low pressure

pipe, 100 [g] for high

pressure pipe

750 g

40 g

Content .. 222 223 224 225 ..

Iveco Daily Euro 4. Manual - part 224