Identifying

Servo, identifying

NOTE: For all future repairs, the hydraulic brake servo used previously has been superseded by a new servo. The new brake servo has a different positioning of the pressure and return lines, as noted in the following chart. These hydraulic lines MUST be connected in their proper locations, or damage and leakage will result.





NOTE: Brake servo units are paired with either long- or short-version master cylinders. See chart which follows these illustrations, for vehicle application.

Original brake servo with LONG-version master cylinder:

Original brake servo with SHORT-version master cylinder:

- with flange a

New brake servo with LONG-version master cylinder:

insert new intermediate piece b (Part Number 443 611 105) onto brake servo push rod


CAUTION: Part numbers are for reference only. Always check with your Parts Department for latest information.

NOTE: The new brake servo design eliminates the 0-ring between the master cylinder and the servo.

New brake servo with SHORT-version master cylinder:

NOTE:
The new brake servo design eliminates:
- 0-ring between the master cylinder and the servo
- flange a (see illustration 47-800)

Master cylinder, vehicle applications: