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A, 6-88) © HOBART CORPORATION, 1985 Operation and Care of the MODEL 4246 MIXER-GRINDER SAVE THESE INSTRUCTIONS GENERAL The Model 4246 Mixer-Grinder is designed to use #32 size knife and plate assemblies (not included with the unit). The Model 4246 is equipped with two drive systems. A 1 H.R motor drives the heavy duty steel mixing arm. A 5 H.P. motor drives the grinder worm in the standard 4246-S unit. There is a IVz H.P. motor, specifically powered for grinding mixed fresh and frozen meat in the heavy duty 4246-HD. The data plate is marked 6 H.P. (total) for the 4246-S, and 81/2 H.P. (total) for the 4246-HD. A new exclusively Hobart design feature is the #46 WEDGE cylinder grinding end. This WEDGE shape, as shown in Fig. 1, is designed to speed up the movement of the product from the hopper to the grinding end. Also, this feature acts to prevent large meat pieces from hanging up at the upper edge of the cylinder opening, by pulling the product into the grinding area. PL-19901 Fig. 1 The 4246 Mixer-Grinder may be ordered with any of the following options and/or accessories: 1. Hopper side-feed inlet (right side only); accessory plug, drip cup, and end rings 2. Pneumatic foot switch (can be easily added at any time) 3. Non-adjustable legs with casters 4. Adjustable legs with casters in two different height ranges The hopper lid is designed to open either from the left or the right, depending on your needs. Contact your Hobart representative for further information. The mixing arm rotates at 23 R.P.M. and the grinder worm at 194 R.P.M. The 4246 Mixer-Grinder hopper has meat capacity up to 140 pounds depending upon the type of product. It has a grinding rate of 55-60 pounds of fresh boneless beef per minute, first or second cutting through a 1/s" plate, and a grinding rate of 60-65 pounds of pork per minute, second cutting through a 3/16" plate. The heavy duty unit, Model 4246-HD, is powered for processing frozen meat tempered to 24°F or higher; the meat can be in flake or stick form. -3 — INSTALLATION UNPACKING CHECK FOR POSSIBLE SHIPPING DAMAGE. IF THE MACHINE IS FOUND TO HAVE BEEN DAMAGED, SAVE THE PACKING MATERIAL AND CONTACT THE CARRIER WITHIN 15 DAYS OF DELIVERY. Unpack the machine and place it in its operating position. Remove the packing box by loosening and removing the 4 bolts through the wooden skid. In setting up the unit, follow the order of assembly below: 1. Legs (shipped in a separate box from the main unit) (require a 15/16" socket; torque to 50# ft.) 2. Lower side panels (packed on top of unit) 3. Spanner wrench and the meat deflector (located inside the hopper; remove) 4. Foot Switch (if ordered, will have been shipped in a separate box) Already assembled within the unit are the conveyor screw, the mixing arm, and the cylinder. Remove the shipping plate and rubber spacer from the chopping end, and replace with your #32 knife and plate assembly (not supplied). Do not use a plate with hole size smaller than 3/32"- Before using the grinding cylinder, take it apart and wash it thoroughly (see cleaning instructions). Adjustable casters should be manipulated to properly level the machine. If the machine has standard feet (no casters), minor adjustments for leveling are made by loosening two set screws on one of the four legs, unscrewing the bottom part of the leg (called the foot), and then re-tightening the set screws. FOOT SWITCH At the front of the machine, located in the lower frame rail approximately 4 inches from the left side, is a “knockout” hole for the foot control hose. Using a hammer and punch (Fig. 2), tap sharply to remove “knock-out” piece in the sheet metal just beneath the frame rail. Using pliers, remove small pinch clamp from hose and thread hose up through “knock-out” hole. Replace pinch clamp on hose and move the clamp approximately 2 inches back away from the hose end. Route the hose around left corner of the control box. On the left side of the control box, find a small metal nipple; remove the protective cap. Push hose tightly over the metal nipple. Now, move the clamp up the hose and place it within 1A inch of the hose end (Fig. 3), so that proper seal is ensured. BE ABSOLUTELY SURE HOSE AND CLAMP ARE FIRMLY SECURED TO NIPPLE; A LOOSE FIT MAY CAUSE FOOT CONTROL TO MALFUNCTION. NOTE: Do not kink the hose while assembling protective sheet metal panels to the frame. — 4 — OPERATION IN TANDEM When the 4246 is used in tandem as a second cut machine, a special adjusting ring is required for the first cut grinder. When ordering side-feed adapters for non-Hobart grinders, specify plate size and type. When ordering adjusting rings for Hobart grinders, specify grinder size. LUBRICATION This machine is shipped with oil already installed. If oil loss is noticed, the oil levels of both transmissions should be checked prior to operation. Contact Hobart Service. ELECTRICAL WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABL...