Figure 6. Attaching the hopper and toolbox. 6. Insert a Phillips head screw with a flat washer through each hole in the handles. Place three flat washers on each of the screws and insert the handle assembly into the holes in the hopper (see Figure 7). Secure the handles with a flat washer, lock washer, and lock nut on each screw. 7. Place the funnel over the studs in the side of the chipper/shredder and secure it with the remaining flat washers, lock washers, and lock nuts (see Figure 8). Figure