Checking Concentricity Of Drive Plate With Overload Safeguard/Adjusting; Unscrewing Drive Plate From Compressor/Screwing On - Audi Air conditioning 2003 A8 Workshop Manual

Audi A8 2003 ➤
Air conditioning - Edition 09.2010
13.10.1 Detaching
– Remove the bolts -A-.
Note
Use a commercially available strap wrench (with fabric strap) to
provide support at the drive plate -C-.
13.10.2 Attaching
– Attach the drive plate with overload safeguard -B- to the drive
plate -C-.
– Insert and hand-tighten the bolts -A-.
– Check the concentricity of the drive plate -B-
– Finish-tighten the bolts -A- (tightening torque 10 Nm).
– Check the concentricity of the drive plate -B- again
⇒ page 164 .
13.11 Checking concentricity of drive plate
with overload safeguard/adjusting
– Remove the compressor
– Clean the flange at the drive plate -A-.
– Attach a dial gauge -B- with dial gauge holder -C- (e.g. with
universal dial gauge holder -VW 387- ) to the compressor.
– Position the probe of the dial gauge -D- on the flange of the
drive plate -A- with a pre-tension of approx. 1.0 mm.
– Give the compressor drive unit -E- several turns.
Specification: Eccentricity less than 0.21 mm (dial gauge deflec‐
tion, difference between lowest and highest measured value max.
0.2 mm)
– If the eccentricity exceeds 0.2 mm, slacken off the bolts at the
drive plate ⇒ page 163
13.12 Unscrewing drive plate from compres‐
sor/screwing on
– Detach the drive plate with overload safeguard
164
Rep. gr.87 - Air conditioning system
⇒ page 164
⇒ page 153 .
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
and re-adjust the drive plate.
with respect to the correctness of information in this document. Copyright by AUDI AG.
.
⇒ page 163 .