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Volkswagen Golf Service & Repair Manual: Assembly overview - belt pulley, Sanden air conditioner compressor

Volkswagen Golf Service & Repair Manual / Heating, air conditioning / Air conditioner / Air conditioner compressor / Assembly overview - belt pulley, Sanden air conditioner compressor

Assembly overview - belt pulley, Sanden air conditioner compressor

1 -  Nut
25 Nm
  Note
In order to protect the thread of the air conditioner compressor drive shaft an additional plastic cap is fitted (not shown in illustration).
–  To unfasten and tighten the hexagon nut, hold the pulley in position with a commercially available oil filter strap wrench.
–  Clean thread of nut which was tightened with locking fluid (e.g. with a thread tap). If it is not cleaned, the drive shaft may be torn off when it is removed the next time.
–  Clean thread of air conditioner compressor drive shaft using a wire brush.
–  Install nut with locking fluid Locking fluid → Electronic Parts Catalogue.
2 -  Bolt
12 Nm
–  To unfasten and tighten the bolts, hold the pulley in position with a commercially available oil filter strap wrench.
–  Clean threaded holes in which self-locking bolts or bolts with locking fluid where installed (e.g. with a thread tap). If the threads are not cleaned, the bolts may be torn off when they are removed the next time.
–  Clean threads of bolts which are to be installed with locking fluid using a wire brush. Then install bolts with locking fluid. Locking fluid → Electronic Parts Catalogue.
3 -  Drive plate
With overload protection (mountings of spring elements). Deploys in the event of excessive torque (e.g. if the air conditioner compressor cannot rotate freely). The belt pulley then rotates without driving the air conditioner compressor.
The spring elements of the drive plate absorb vibrations and noise.
4 -  Circlip
Renew.
Do not reverse when installing; chamfer -A- faces away from air conditioner compressor (flat side towards air conditioner compressor).
5 -  Belt pulley
With rubber elements -B- and threaded plates -C- for decoupling belt pulley from air conditioner drive shaft (absorb vibrations and noise).
  Note
Depending on design, the threaded plates may also be connected by means of a ring.
“Cold country” vehicles (e.g. central and northern Europe) may be fitted with air conditioner compressors with a smaller capacity. On these air conditioner compressors, the pulley is slightly different to the version shown here (e.g. no rubber elements -B-) → Electronic Parts Catalogue.
6 -  Air conditioner compressor
Clean drive shaft of air conditioner compressor before fitting the belt pulley.
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