Push Rod Adjustment
Place suitable push rod gauge (J-22647) over push rod, in position which will allow gauge to be moved from side to side without touching studs.
NOTE:
Ensure no vacuum exists in unit.
Center section of gauge has two levels. Push rod must touch longer section of gauge (see illustration). Rod should never touch shorter section. If any variation from this check exists, obtain service adjustable push rod (with adjustable screw on end). Regulate push rod to match proper adjustment. Variation beyond these limits can cause primary cup to overlap the compensation port of master cylinder, trapping fluid and causing brake drag.