The brake release is controlled by the little retainer tab that holds the lower drive pulley on. With the retainer removed, the correct way to set the brake adjustment is to NOT LAY THE WASHER DOWN. Whoever does this adjustment must be able to lay in front of the machine as it is reclined back against the wall.
1. Remove the little screw on the adjuster and remove the adjuster tab.
2. Rotate the drive pulley clockwise until it just touches the brake enough to release the tub. You'll feel a tiny amount of tension when the pulley hits this point, so stop and insert the stop tab back onto the end of the shaft and secure it with the screw.
When installing a tranny like this, if you laid the machine over, it must be stood up with the tranny bolts unloosened 3 turns to align everything and keep it from binding. Then tighten the bolts. If the tub is hard to turn it is not likely a brake issue. Remember that there is also a radial bearing on top of the lower pulley which must be properly in place and turning for the brake to work.