Pressure Plate release lever stiffness?

[burly]

Guys just mounted 39 tranny to fresh rebuild 59A, Weber flywheel. Rebuilt 9" clutch, pressure plate and new throw out. Slid pipe over clutch shaft arm and push forward but pressure plate release levers didn't budge after throw out made contact. Might supposed to be that stiff? I didn't want to push hard enough to damage anything. Appreciate your thoughts. Don't want to install and have to jerk back out.