John 400 Grinder-Mixer Operators Manual - Jensales
The 400 Grinder-Mixer is a portable feed grinder and mixer, equipped with a 17 -inch wide hammer mill with 20-inch feed throat. The hammer mill has 26 four-way reversible, free swinging hammers, and 506 square inches of screen area. The grinder-mixer is PTO driven at either 540 or 1000 rpm and uses a 4-1/2-inch wide,