Okay, progress!!!
I'm using number 2 as the guinea pig, but it should work on both. The key is to attack from the rear. I heated up a small screw-driver to slowly pry off the back cup. In most cases, this will likely chew up and ruin the cup. I found some Ball baby-food jar caps at Walmart to facilitate the replacement parts. They are a touch loose, but will work. 2" PVC flat caps are a touch too small, but would also likely work.
Initial:


No back cup on 2:

Removed the foam plug in the pole-piece:

Pulled out string of black adhesive (that was across the front of the pole) from the rear using needle-nose pliers, and then inserted a 1" ball of cotton to flush with backplate. There is still no back cup installed:

More in the next post...
Wolf
I'm using number 2 as the guinea pig, but it should work on both. The key is to attack from the rear. I heated up a small screw-driver to slowly pry off the back cup. In most cases, this will likely chew up and ruin the cup. I found some Ball baby-food jar caps at Walmart to facilitate the replacement parts. They are a touch loose, but will work. 2" PVC flat caps are a touch too small, but would also likely work.
Initial:
No back cup on 2:
Removed the foam plug in the pole-piece:
Pulled out string of black adhesive (that was across the front of the pole) from the rear using needle-nose pliers, and then inserted a 1" ball of cotton to flush with backplate. There is still no back cup installed:
More in the next post...
Wolf
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