ASTEC KPI-JCI Operation And Maintenance Manual page 81

Impeller Shoes
Pin-on Shoes
Use the following procedure to
remove worn pin-on impeller
shoes.
1. To remove worn shoes,
strike the face of the shoe
sharply with a hammer to
loosen.
2. Pull out the securing pin and
remove the shoe.
CAUTION
Wear proper protective
equipment when using a
hammer to remove the
shoes. Debris may fly into
eye or body causing injury.
3. If worn shoes cannot be
removed by using steps one
and two, then cut the pins
off the shoe with a torch.
NOTICE
Be careful not to cut into the
brackets with the torch.
Many times when the pin is
cut to remove the shoe, the
area of the bracket right
behind the pin is cut into.
This area of the bracket
should be cleaned and
welded up to its original
thickness with a stainless
steel welding rod.
Vertical Shaft Impactor
Wear Parts
Pin
Table Assembly - Pin-on Style Shoes
Pin-on Style Shoe - Weight Marking
Stainless steel is difficult to
cut with a torch, thus saving
the bracket from future cuts.
Where the pin makes
contact with the top of the
bracket it will "wear in" and
a l l o w m o r e d i s t a n c e
between the shoe and the
bracket. A small amount of
weld metal applied in the
Shoe bracket
indentation will tighten up
the fit. The weld metal must
not extend beyond the
original thickness of the
shoe bracket.
Shoe
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