Introduction The keyless Taper-Grip® bushing system provides simple and reliable shaft attachment for Fenner Speed reducers and gearmotors. This system allows bi-directional shaft rotation and stop-start operation with a powerful, slip-free grip. To assure peak performance of your equip - ment, please read, understand and follow these installation instructions. Safety Disconnect all power sources from the equipment before beginning this installation procedure. Handle the components with care and avoid all sharp or machined edges to prevent personal injury or damage to the components. Before Installing Unit on Driven Shaft ( Steps 1-7) Carefully inspect the driven equipment shaft. Remove all burrs, corrosion, lubricants, and foreign matter from the shaft surface. Verify the shaft diameter is within the dimensional. Step 1 – Remove the Taper-Grip® bushing safety cover ( see Fig. 2) . Step 2 – Remove the cap screws from the bushing. Lightly oil the threads of the cap screws and partially re-insert them into the threaded holes in the bushing flange. The ends of the cap screws should not extend beyond the rear face of the bushing flange. Step 3 – Slide the thrust collar onto the Taper-Grip® bushing ( see Fig. 3) . Step 4 – Apply a thin layer of anti-seize paste to the male threads of the Taper-Grip® Bushing only ( see Fig.4) . Based on tests, Fenner recommends Bostik Never-Seez Regular Grade or equivalent. Ensure that anti-seize paste does not enter the Taper-Grip® Bushing bore. Caution: Do not apply anti-seize paste to the female threads in the hub. Step 5 – Carefully thread the Taper-Grip® bushing into the hub of the speed reducer or gearmotor until the thrust collar solidly engages the unit hub surface and the bushing flange ( see Fig. 5) . Caution: Do not cross-thread. Bushing should thread easily into hub. Step 6 – Unscrew the Taper-Grip® bushing to create a 1mm ( 0.04” ) gap between the thrust collar and the bushing flange. Step 7 – Hand-tighten the cap screws until they firmly press the thrust collar against the unit hub surface. The unit is ready for installation on the driven shaft.