Atlas Copco — Brake shoe adjustment
Adjustments · Wheel brake
From a Atlas Copco owner's manual covering: QAX 12 Dd, QAX 20 Dd, QAX 30 Dd, Qc1002. Check it applies to your exact model before use.
Applies to: Deutz F2M 2011 F engine, Deutz F3M 2011 F engine, Deutz BF3M 2011 F engine
Before you start
- Before jacking up the generator, connect it to a towing vehicle or attach a weight of minimum 50 kg to the towbar
Procedure
- Check brake lining thickness through the plugs (5); replace shoes at 1 mm or less.
- Lift and support the generator; make sure all brakes are off.
- Lock the swivel cams from outside using a 4 mm pin.
- Turn the adjusting bolt clockwise with a wrench until the wheel locks up.
- Center the brake shoes by actuating the parking brake several times.
- Turn the adjusting bolt anti-clockwise until the wheel runs free (approx. 1 full turn).
- Check the equalizer is perpendicular with the parking brake actuated.
- Remove the locking pin and check all lock nuts.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Replace brake lining at 1 mm or less
- Approx. 1 full turn of the adjusting bolt
Source: Atlas Copco owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.