Opel Frontera UE. Manual - part 25

1A–72

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Diagnosis

Condition

Possible cause

Correction

Noise from compression

Defective rotor/piston

Replace  compressor/cylinder  and
shaft assembly

Defective 

shaft

Replace compressor/cylinder and
shaft assembly

Noise from magnetic clutch

Defective bearing

Replace magnetic clutch

Defective clutch

Replace magnetic clutch

Clearance between drive plate and
pulley not standard

Adjust the clearance or replace
magnetic clutch

Insufficient cooling

Defective gasket

Replace compressor/gasket

Defective rotor/reed valve

Replace compressor/valve plate

Defective trigger valve/suction valve

Replace compressor/suction valve

Not rotating

Defective rotor/piston

Replace  compressor/cylinder  and
shaft assembly

Defective 

shaft

Replace compressor/cylinder and
shaft assembly

Rotating parts seized due to
insufficient oil

Replace compressor

Oil and/or gas leakage

Defective seal

Replace compressor/shaft seal

Defective O-ring

Replace

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–73

Magnetic Clutch Assembly (DKV-14D Type)

Parts Location View

871RX012

EndOFCallout

Removal

1. Using drive plate holder J-33939 (1) to prevent the

drive plate from rotating, then remove the drive plate
bolt.

901RX055

2. Remove drive plate by using drive plate puller

J-33944-A (2) and forcing screw J-33944-4 (1).

871RX016

Legend

(1) Drive Plate bolt
(2) Drive Plate
(3) Snap Ring

(4) Pulley Assembly
(5) Field Coil
(6) Shim (s)
(7) Lead Wire

1A–74

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

3. Remove shim (s).

4. Remove snap ring (1) by using snap ring pliers.

871RW016

5. Remove pulley assembly by using pulley puller pilot

J-38424, pulley puller J-8433 and pulley puller leg
J-24092-2.

871RS009

6. Loosen screw and disconnect the coil lead wire

connector.

871RS010

7. Loosen three screws and remove the field coil.

871RS011

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–75

Inspection and Repair

Drive Plate

If the frictional surface shows signs of damage due to
excessive heat, the drive plate and pulley should be
replaced.

Pulley Assembly

Check the appearance of the pulley assembly.  If the
frictional surface of the pulley shows signs of excessive
grooving due to slippage, both the pulley and drive plate
should be replaced.  The frictional surfaces of the pulley
assembly should be cleaned with a suitable solvent
before reinstallation.

Coil

Check coil for loose connector or cracked insulation.

Installation

1. Install field coil.

• Align the located portion (1) of the field coil and

compressor.

871RX010

• Tighten the mounting screw to the specified

torque.

Torque: 5N·m (44 lb in)

2. Connect the lead wire connector with the rubber

hold and tighten the screw.

3. Install pulley assembly by using pulley installer

J-33940-A and drive handle J-8092.

871RS013

4. Install snap ring.

5. Install shim (s).

6. Install the drive plate to the compressor drive shaft

together with the original shim(s)(1).  Press the drive
plate by hand.

871RX015