Need Help with PSS Shaftseal

[boden36]

I replaced our bellows last week after about 14 years (was still apparently in good condition) . Was very surprised at the amount of pressure that was needed to achieve the specified 19mm bellows compression.
Could not hold it with one hand and do up the grub screws, but had to wedge it against the safety collar that I have on the shaft.
To push it off the rotor for burping takes most of my strength.

Regards,
Richard.