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1. Make sure the corner guide block cover plate is on top of the UHMW (plastic)
corner friction block and a 3/8 internal star washer is between the block and the
mounting ange of the tower. This washer is necessary to insure a grip between the
friction block and the metal ange of the tower.
2. Use 1/8” spacers to center the inside tower in the middle of the outside tower.
SEE ILLUSTRATION.
3. Using a .010” shim and .020” shim for spacers, place a .010” shim between the
friction block and the inner tower section sides. SEE ILLUSTRATION.
4. Make sure the inner tower is against the 3/8” thick UHMW blocks mounted
inside the outer tower and use the .020” shim to set the friction block distance from
the inner tower section. SEE ILLUSTRATION.
5. Tighten the ¼-20 nuts. And continue to set all corner friction blocks on all sec-
tions using this procedure.
VERTICAL TOWER CORNER GUIDE BLOCK ADJUSTMENT
VERTICAL TOWER ADJUSTMENTS
