Disc Brake Piston Tool is designed to work on vehicles that are equipped with rear wheel disc brakes.
Universal fitting which includes Audi (A4, A), ROVER, Saab, Toyota, Celica, Corolla, Golf, Passatt. Fits most cars.
Pin diameter 6mm. Gaps between pins 16mm & 28mm
A handy set for any car mechanic!
Kit Includes:
- Tommy bar (winding handle)
- Threaded driving shaft with square drive
- Main body
- Pressure plate
- Piston adapter plate with locating lugs
Using Instruction:
The piston adapter fixes to the driving shaft via a square-drive socket and rotates with the shaft and handle.
The locating pins fit into recesses on the piston face and force it to rotate too.
As the shaft is wound in, the main body pushes against the pressure plate which in turn pushes against the sliding caliper body - and thus the piston is driven back into the caliper.
When the tool is first placed in position, it is important to ensure that the piston adapter plate is properly located (via the two locating pins) onto the piston - otherwise the plate will not be able to rotate, and the tool can jam.
It is also important to ensure that when the tool is removed*, the piston is left with its locating recesses arranged in a North, East, South and West arrangement so that the piston aligns with the locating pin on the back of the brake pad itself.
*Tip - when the piston is fully wound back, do not try to release the tool by turning the handle anti-clockwise - it can jam... Instead, turn the barrel of the main body clockwise and it will release the tool more easily and reliably.
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