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Home >> Audi >> 2012 >> Q7 3.0 TDI >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation & Air Conditioning >> 87 Air Conditioning >> Diagnosis And Testing >> Drive Plate Run-Out With Overload Protection, Checking And Adjusting

Drive Plate Run-Out With Overload Protection, Checking And Adjusting

-- Remove compressor, refer to COMPRESSOR .

-- Clean flange at drive plate -A-.

Fig 1: Checking/Adjusting Run-Out Of Drive Plate With Overload Protection
GWWA87-0624Courtesy of AUDI OF AMERICA, LLC

-- Secure a dial gauge -B- using a dial gauge holder -C- (for example, using dial gauge holderVW 387) on compressor.

-- Set probe of dial gauge -D- on flange of drive plate -A- with a pre-tension of approximately 1.0 mm.

-- Turn compressor drive unit -E- several rotations.

Specification:

Run-out deviation is less than 0.21 mm (run-out of dial indicator, difference between smallest and largest measured value 0.2 mm maximum)

-- If run-out deviation is greater than 0.2 mm, loosen bolts on drive plate, refer to DRIVE PLATE WITH OVERLOAD PROTECTION  and re-adjust drive plate.