2011 FORD KUGA ECT

Perform the leak test, by closing the hand valves
on the gauge set, switching off the service unit
vacuum pump and observing the low pressure
gauge.
10. N O T E : This step is only necessary if the
pressure increase exceeds 20 mbar.
Locate and rectify any leaks in the A/C
refrigerant circuit using a leak tester.
General Equipment: UV Leak Detector
General Equipment: Electronic Leak Detector
General Equipment: Automatic Calibration Halogen Leak Detector
11 . Add refrigerant oil to the air conditioning system.
Refer to: Specifications (412-00 Climate Control
System - General Information, Specifications).
Refer to: Refrigerant Oil Adding (412-00 Climate
Control System - General Information, General
Procedures).
12. Fill the air conditioning system with liquid
through the high-pressure connection.
Refer to: Specifications (412-00 Climate Control
System - General Information, Specifications).
13. Open the shut-off valve on the high-pressure
side.
1.
2. Switch the service unit to "Fill" mode and fill
the system with the specified quantity of
liquid refrigerant (R134a).
14. Fill the air conditioning system with gas through
the low-pressure connection.
Refer to: Specifications (412-00 Climate Control
System - General Information, Specifications).
15. Open the shut-off valve on the low-pressure
side.
1.
2. Switch the service unit to "Fill" mode and fill
the system with the specified quantity of
gaseous refrigerant.
3. Add the remaining amount of refrigerant with the air conditioning switched on. To do so
run the engine at about 1200-1500 rev/min.
Set the air conditioning system to full cooling
power and fresh air mode. Set the blower
motor to the highest setting. Fill with the
remainder of the specified fill capacity.
16. Disconnect the service unit. 17.
Close the shut-off valve.
1.
2. Switch off the service unit.
3. Disconnect the service unit lines from the
filling connections of the air conditioning
system.
4. Screw the protective caps onto the charging connections.
18. Install all components in reverse order.
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Spring Lock Coupling
Special Tool(s)412-026
Disconnect Tool, Spring Lock
Coupling (3/8" red)
23023A
412-027
Disconnect Tool, Spring Lock
Coupling (1/2" blue)
34001
412-038
Disconnect Tool, Spring Lock
Coupling (5/8" black)
34003
412-069
Disconnect Tool, Spring Lock
Coupling (3/4" white)
34002
Materials
Specification
Name
WSH-M1C231-B /
6U7J-M1C231-AA
Compressor Oil - Air
Conditioning 1.
Refer to: Air Conditioning (A/C) System Health
and Safety Precautions (100-00 General
Information, Description and Operation).
2. NOTE: Choose the special tool according to the
line diameter.
Special Tool(s): 412-026, 412-027, 412-038,
412-069
E68499
3.
E68500
4. CAUTION: Make sure that all openings are sealed.
E68501
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5. CAUTION: Make sure that all openingsare sealed.
• Check the locking spring for damage.
• Carefully remove damaged locking springswith a thin wire, and renew them.
E68502
6.Install new refrigerant line O-rings.
E68523
7. CAUTION: Never lubricate connections
and O-rings with mineral oil.
Coat the O-rings for the refrigerant line with
clean refrigerant oil.
Material: Compressor Oil - Air Conditioning(WSH-M1C231-B / 6U7J-M1C231-AA)
refrigerant oil
8.
E68503
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Air Conditioning (A/C) Clutch Air Gap Adjustment
1.Check the gap A (measure the difference
between the engaged and disengaged positions
of the air conditioning clutch) at 60° intervals
around the circumference of the pulley. Operate
the air conditioning clutch several times with the
aid of a 5 A fused cable. Refer to the relevant
wiring diagram for the correct electrical
connection.
Refer to: Specifications (412-00 Climate Control
System - General Information, Specifications).
E92144
A
2.
E68442
3. If necessary correct the gap A using spacer
washers.
E68470
4.Refer to: Specifications (412-00 Climate Control
System - General Information, Specifications).
E68442
5. Check the gap A as described in step 1. If
necessary, repeat steps 2-5.
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Refrigerant Oil Adding
CAUTION: Collect the refrigerant oil in a
clean measuring cylinder.
1. NOTE: This step only needs to be carried out
when removing the A/C compressor.
NOTE: Rotate the compressor shaft at least 6
to 8 turns when draining the refrigerant oil.
Drain the refrigerant oil from the defective A/C
compressor and dispose of it.
2. CAUTIONS:
The refrigerant oil top-up quantity must
not exceed the refrigerant oil fill
quantity.
If other A/C components are being
renewed in addition to the A/C
compressor, there is no need to top up
with additional refrigerant oil, apart from
filling the compressor.
Top up with the calculated quantity of new
refrigerant oil. See:Specifications(412-00
Heating, Ventilation, Air-Conditioning - General
information, Specifications).
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Contaminated Refrigerant Handling
1. CAUTION: Any R134a or R12 refrigerantwhich is contaminated with unsuitable
refrigerant should be extracted only by
means of a suitable servicing unit
designed for the purpose of collecting
and storing contaminated refrigerant,
so that the spread to other vehicles can
be prevented.
Use refrigerant identification equipment to check
that there is contaminated refrigerant in the air
conditioning system.
2. Inform the customer about the additional costs
involved to repair the system because of the
contamination.
3. Extract the contaminated refrigerant.
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Electronic Leak Detection
1.Refer to: Air Conditioning (A/C) System Health
and Safety Precautions (100-00 General
Information, Description and Operation).
2. WARNINGS:
Before starting leak detection, make
sure that the area where it is to be done
is well ventilated. If the surrounding air
is contaminated with refrigerant gas, the
leak detector will indicate this gas all
the time. Odors from other chemicals
such as antifreeze, diesel fuel, disc
brake cleaner, or other cleaning
solvents can cause the same problem.
Prevent air movement while performing
leak detection.
The refrigerant identification equipment
must be used before attaching the
manifold gauge set. Otherwise the
manifold gauge set may become
contaminated. Contaminated refrigerant
must be disposed of as special waste.
Follow the manufacturer's instructions
when working with the service unit.
NOTE: At 24°C with the engine switched off,
both manifold gauges should show 4.1 to 5.5
bar.
Attach the manifold gauge set to the service
gauge port valves.
3. For the leak test, close the manual valves on
the gauge set.
4. If little or no pressure is indicated, charge the
system with approx. 300g of refrigerant. Refer
to: Air Conditioning System - Evacuate and
Refill.
5. Use the R-134a Automatic Calibration Halogen
Leak Detector to leak test the refrigerant system.
Follow the instructions included with leak
detector for handling and operation techniques.
6. If any leak is found, extract the refrigerant under
suction. Refer to: Air Conditioning System -
Evacuate and Refill.
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Fluorescent Dye Leak Detection
General EquipmentUV Leak Detector
1. Refer to: Air Conditioning (A/C) System Health
and Safety Precautions (100-00 General
Information, Description and Operation).
2. NOTE: Some vehicles may have signs of
refrigerant oil at the spring lock couplers. The
cause of this may be a procedure used in
production before installation of the fittings in
order to assist their assembly. When a spring
lock coupler is suspected of leaking, always
wipe the fitting clean and verify the leak with
R-134a Automatic Calibration Halogen Leak
Detector.
NOTE: The exact location of leaks can be
pinpointed by the bright yellow - green glow of
the tracer dye. Since more than one leak can
exist, always inspect each component.
• Locate the leaks. Check all components, fittings and lines of the A/C system for leaks.
General Equipment: UV Leak Detector
3. After the leak is found and rectified, remove any
traces of dye with a general purpose solvent.
4. Check the repair by operating the system for
some minutes and inspecting with the UV lamp
again.
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