SEAT Workshop Service and Repair Manuals

Magnetic coupling of the compressor: removing and installing

Special tools and workshop equipment required

t	pliers for security rings -A-81124-

t	three arm puller -U-10087A-

t	torque spanner -SAT 8010-

t	extraction system for the coupling in models -T20017A-

Note! It is not necessary to open the coolant agent circuit to remove and install the coupling.

Securing the compressor to workshop vice   Note! t  Use gags to fix the compressor to the workshop vice t  Make sure the wiring of the magnetic coupling is not stretched between the workshop vice and the compressor housing

Removal of the hexagon nut –  Unscrew hexagon nut with the disc coupling counterhold tool -T20017A- and articulated open-jaw spanner or articulated socket spanner.

Disc coupling removal –  Place the screwdriver in the existing slot between the coupling disc and the pulley. –  Turn lightly the screwdriver -arrow-. –  Repeat the work sequence in other two points of the area -arrows-. –  Displace coupling disc. –  Remove the spacing washers.

Removal of the pulley of the electromagnetic drive –  Remove the safety ring of the pulley.

–  Displace the pulley with the three arm puller -U-10087A-.

–  Place the hook -arrow- just as indicated in the figure.   Note! If the hook is placed on the lower edge of the pulley the magnetic coupling coil may be damaged.

Removal of the electromagnetic coil –  Remove the safety ring of the magnetic coil. –  Separate the magnetic coil from the compressor.

Installing the pulley for the magnetic coupling   Note! Place the pully as horizontal as possible to avoid deterioration while mounting. –  Mount the pulley with the help of the -T20017A--1- tool.

Checking and adjustment of the separation dimension –  Measure the separation dimension using a depth gauge and connecting and disconnecting the magnetic coupling (applying a voltage of 12 V). t  Specification: 0.4...0.8 mm –  If necessary, adjust the dimension with spacing washers. To do so, remove the coupling disc.   Note! t  The separation dimension of all of the area should be comprised between the indicated tolerance t  The separation dimension can be measured also with the compressor installed t  If the separation dimension exceeds the specification, coupling disc has to be removed and the separation adjusted, adding or removing spacing washers