Telsmith Vibrating Aggregate Screen 6 x 20 Triple Deck

Consult Telsmith Engineering Department before proceeding with shim changes

Remove the two hex head capscrews holding the counterweight shim stack

Slide the shims out one at a time off the counterweight hub

Slide additional shims on the counterweight hub if required

Fasten shims in position with the two hex head capscrews

Lockout/Tagout power to screen as detailed in Chapter 1.

Remove the drive belt(s) from the electric motor(s) as detailed in Chapter 3.

Remove the friction dampening puck from each base assembly by removing the access cover and pulling the spring and friction puck out of the base assembly.

Lift the screen several inches off the screen springs and base frame using a lift hoist and spreader frame of sufficient capacity for your model screen.

Block the screen up on blocking of sufficient capacity to support the screen.

Check the spring free height. New springs have a free height of 15.5 in. (39.4 cm).

Check 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 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.

Check wire weave for breaks, tears or separation of the wire.

Replace wire that exhibits any damage.

Observe operating screen for any panels with 'dead spots' where material is puddling.

Replace wire panels that no longer maintain tension over the complete surface area.

Screen Tension and Buffer Check

Check that screen is tight against all buffer and crown bars.

Replace rubber if missing, torn or worn through to the metal on crown bars.