Telsmith Vibrating Aggregate Screen 8 x 24 Triple Deck

Clamp the brace being removed to the mounting tabs at both ends using a C-clamp.

Hold the hex nuts from below and remove all 3/4” capscrews holding the brace to the support frame.

Support the cross brace and remove the C-clamps from one end at a time while lowering the brace.

Select the type of brace to replace

Refer to Figure 8-55 for the correct brace pattern.

Mount the new brace using 3/4” capscrews and toplock hex nuts.

Ensure all capscrews are securely fastened.

Inspect for signs of oil breakdown

Measure temperature on the bearing housing face using a magnetic thermometer

Measure temperature on the bearing housing rim using a magnetic thermometer

Check for hot spots using a hand held digital heat scanning device

Is any bearing cover showing more than 180°F (82°C)?

Ensure cross bracing is provided if all support frames and drive unit/shaft casings are removed.

Determine sequence of wire support frame removal based on screen model and drive unit/shaft casing status.

Removal of Existing Wire Support Frame

Remove all cross braces from the bottom side of the screen frame.

Support the back plate with a hoist and lift straps, then remove and lower it to the ground.

Support the discharge lip with straps and a hoist, then remove and lower it to the ground.

Support the wire frame from above with lift straps and a hoist.

Cut the huck bolts at the four corners and temporarily replace them with bolts, nuts, and washers.

Ensure cross bracing is provided if all support frames and drive units are removed.

Removal of Backplate and Discharge Lip

Support the backplate with a hoist and lift straps.

Remove the capscrews holding the backplate to the support frame.

Lower the backplate to the ground.

Support the discharge lip with straps and a hoist.

Remove the six capscrews and locknuts holding the discharge lip assembly.

Lower the discharge lip assembly to the ground.

Consult the Telsmith Engineering Department before proceeding with any change in counterweight balance shims.

Remove the two hex head capscrews holding the counterweight shim stack to the face of the counterweight.

Slide the shims out one at a time off the counterweight hub and lower to the floor.

If additional shims are required, slide them on the counterweight hub.

Fasten the shims in position with the two hex head capscrews ensuring proper engagement with the counterweight hub.

Ensure that the shims do not protrude past the end of the counterweight hub.