Hobart MG1532 User's Manual
Contents
1. arm and worm will touch the seals Reassemble the mixing arm seal worm seal mixing arm and bushing retainer To reassemble mix arm and worm seals Align tab at bottom of each seal with notch at bottom of applicable seal hole in end wall of hopper Arrow at top of seal points up Squeeze sides of seal and push in Push in top of seal Make sure seals are properly seated After cleaning a light coat of food grade mineral oil is recommended for the cylinder adjusting ring knife plate and worm before reassembly MAINTENANCE WARNING DISCONNECT THE ELECTRICAL POWER SUPPLY BEFORE CLEANING OR SERVICING THIS MACHINE LUBRICATION Both motor bearings are pre lubricated and sealed No further lubrication is required Gear Case for Mixing Arm Annually or when needed contact Hobart Service for lubrication maintenance Gear Case for Worm Annually or when needed contact Hobart Service for lubrication maintenance SERVICE Contact your local Hobart Service Office for any repairs or adjustments needed on this equipment FORM 34389 Rev B Aug 2001 8 PRINTED IN U S A2. MG1532 amp MG2032 MIXER GRINDERS MODEL MG1532 MG1532 MG1532 MG2032 MG2032 ML 134099 ML 134103 ML 134100 ML 134104 ML 134105 MIXER GRINDER 7 5 HP Grind Motor 1 HP Mix Motor 5 HP Grind Motor 1 HP Mix Motor 7 5 HP Grind Motor 1 HP Mix Motor w Side Feed 7 5 HP Grind Motor 1 HP Mix Motor 7 5 HP Grind Motor 1 HP Mix Motor w Side Feed Previous models covered by this manual MG1532 MG1532 MG1532 MG2032 MG2032 ML 104878 ML 104883 ML 104879 ML 104884 ML 104885 7 5 HP Grind Motor 1 HP Mix Motor 5 HP Grind Motor 1 HP Mix Motor 7 5 HP Grind Motor 1 HP Mix Motor w Side Feed 7 5 HP Grind Motor 1 HP Mix Motor 7 5 HP Grind Motor 1 HP Mix Motor w Side Feed CORPORATION 701 S RIDGE AVENUE TROY OHIO 45374 0001 937 332 3000 www hobartcorp com FORM 34389 Rev B Aug 2001 MODEL MG1532 MIXER GRINDER MODEL MG2032 MIXER GRINDER HOBART CORPORATION 1997 2 Installation Operation and Care of MG1532 amp MG2032 MIXER GRINDERS SAVE THESE INSTRUCTIONS GENERAL The MG1532 8 MG2032 Mixer Grinders are designed to use a 32 42 46 size knife and plate knives and plates are available at extra cost but not included with grinder Do not use a plate with hole size smaller than 32 The MG1532 Mixer Grinder is equipped with either a 5 or 7 2 HP Grind Motor and a 1 HP Mix Motor The MG2032 Mixer Grinder is equipped with a 7 2 HP Grind Motor and a 1 HP Mix Motor On all m
3. R ATTACHMENT The Wedge cylinder is marked TOP and BOTTOM Before operating make sure TOP is visible The grinder attachment can easily be removed for cleaning see Cleaning page 8 Use the spanner wrench to loosen the adjusting ring and remove the adjusting ring plate and knife Next loosen but do not remove the grinder attachment s two flange nuts using the spanner wrench Rotate the cylinder clockwise and remove the cylinder then remove the worm At reassembly install the worm and then the cylinder Make sure TOP is visible on the cylinder and that the cylinder s flange nuts are tight before assembling the knife plate and adjusting ring Use only the flange nuts provided Two studs on the front of the machine allow storage of the spanner wrench and pneumatic foot switch The rubber seal at the drive end of the worm can be removed by hand for cleaning Grasp the outer flange of the seal or use a dull screwdriver to pry the seal loose Reinstall seal before installing worm WORM Before using the grinder attachment take it apart MIXARM SEAL SS WORM SEAL WE MIX ARM jb and thoroughly wash it The knife and plate need some preliminary lubrication Rub tallow or food grade mineral oil over the cutting faces of these parts When assembling the knife be sure to turn the cutting side towards the perforated plate The notch on the circumference of the plate must fit over the pin in the cylinder Knives and plates must be sharp and tr
4. TAG AT THE DISCONNECT SWITCH INDICATING THAT YOU ARE WORKING ON THE CIRCUIT The mixer grinder is provided with a cord and plug and only reguires that it be connected to an appropriately sized grounding type receptacle Refer to the machine data plate Fig 5 and Electrical Data below ELECTRICAL DATA Minimum Circuit Ampacity Model Horsepower Volts Hertz Phase Maximum Protective Device Receptacle Plug AMPS X Gy 208 60 3 30 ut o D built before October 2000 gt Plug L21 30P L21 30R 208 60 3 MG1532 7 5 HP Grind jg after October 2000 m a f Plug L15 30P MG2032 8 1 HP Mix 240 60 3 L15 30R X 480 60 3 20 el V Plug L16 20P Z L16 20R 5 HP Grind MG1532 208 240 60 1 30 Plug L6 30P 8 1 HP Mix L6 30R Compiled in accordance with the National Electrical Code NFPA 70 latest edition CHECK MOTOR ROTATION Three Phase Machines Only With the grinder cylinder in place and the hopper lid closed check the rotation before making a permanent electrical connection by first pushing the MIX GRIND START switch and then pushing the STOP switch Fig 4 The mixing arm and worm should both rotate counterclockwise when viewed from the machine s front If the mixing arm and worm rotate clockwise correct the rotation using the following procedure DISCONNECT THE ELECTRICAL POWER SUPPLY and interchange any two of the incoming power supply leads Reconnect the power supply a
5. eat The MG1532 8 MG2032 Mixer Grinders can grind at a rate of 55 to 60 pounds of fresh boneless beef per minute first or second cut through a s plate Pork can be ground first cut through a breaker plate and second cut through a 16 plate at 60 to 65 pounds per minute Up to 60 pounds of frozen meat per batch on units with 7 2 HP Grind Motor only can be ground from flake or stick form when tempered to 26 F or higher and first grind is through a s or larger plate 3 INSTALLATION Immediately after unpacking the mixer grinder check for possible shipping damage If the machine is found to be damaged save the packaging material and contact the carrier within 15 days of delivery Prior to installation test the electrical service to make sure it agrees with the specifications on the machine data plate Fig 5 CASTER SETS AND OR ADJUSTABLE LEG SETS With the mixer grinder securely elevated using the base frame for support bolt the caster assemblies through the corner holes using four hex head 16 18 bolts lockwashers washers and nuts for each caster provided e When eguippped with two Fixed and two Swivel casters install Fixed Casters without Brake on rear corners of the machine and Swivel Casters with Brake on front corners e On machines with four identical legs or casters install one on each corner All casters and leg sets use washers under the flange and above the machine base frame Insert bol
6. l hopper and close and latch the hopper lid Press MIX Button After desired mixing press the STOP Button Then press the MIX GRIND Button to start grinding press the STOP Button to stop grinding or activate and use the optional accessory Foot Switch My CLEANING WARNING DISCONNECT THE ELECTRICAL POWER SUPPLY BEFORE CLEANING OR SERVICING THIS MACHINE In any cleaning operation after disconnecting the electrical power supply seal the receptacle to prevent entrance of moisture To make this seal on Hobart supplied receptacles and pendant connectors place the cover cap into position and turn the screw type sealing ring clockwise Remove the following components when cleaning Mixing arm grinder adjusting ring knife and plate Remove the cylinder before removing the worm Also remove the side feed hopper plug when used The method for removing these components has already been described refer to Grinder Attachment page 7 The mixing arm seal and the worm seal Fig 6 should be removed by hand for cleaning Grasp the outer flange or use a dull screwdriver to pry the seal loose The machine can be washed down with hot water or steam as is customary in meat processing operations When using detergents and sanitizers follow manufacturer s instructions Rinse with clear water Allow to air dry After cleaning the machine apply food grade mineral oil to lubricate the inside rim of the mixing arm seals and the worm seal where the mixing
7. nd push the MIX GRIND START switch to verify that both the worm and the mixer arm rotate counterclockwise as viewed from the front of the machine CONTROL BOX HEATERS The Mixer Grinder has a heater in the control box and another heater in the front control panel to keep the controls dry They are automatically ON when the machine is electrically connected The Mixer Grinder should always be connected EXCEPT when performing assembly disassembly cleaning or maintenance of the machine After cleaning reconnect the electrical power supply OPERATION CONTROLS Fig 4 MIX STOP MIX GRIND FOOT START FOOT SWITCH OFF START SWITCH Z e Fig 4 MIX START Button Starts rotating the mix arm Use the Stop Button to stop mixing STOP Button Turns the mixer grinder off Turns the Foot Switch off if it was on MIX GRIND START Button Starts rotating both mix arm and worm Use the Stop Button to stop mixing and grinding FOOT SWITCH When On the Mix Start and Mix Grind Start Buttons are inoperable and the accessory Foot Switch can be used to Mix Grind ONLY Theindicator light shows when the Foot Switch is On Push the STOP Button to turn the Foot Switch Off HOPPER LID INTERLOCK An interlock switch requires the hopper lid to be closed before the machine can operate Raising the hopper lid opens the electrical circuit and makes the machine inoperative LATCH BUSHING RETAINER FLANGE NUT GRINDE
8. odels the worm rotates at 216 RPM and the mix arm rotates at 23 RPM The MG1532 with 5 HP Grind Motor is for fresh meat only not for frozen product The inclined hopper permits lower easier loading while the tilted worm provides a convenient output height Releasing the latch handle allows the hopper guard lid to open easily torsion springs counterbalance the lid s weight The exclusive Hobart designed 46 Wedge cylinder grinding end speeds product from hopper to grinding Er end by pulling pieces of meat through the large upper a opening of the cylinder Fig 1 The MG1532 8 MG2032 Mixer Grinders may be ordered with any of the following options and or accessories 1 Caster sets and or adjustable leg sets The MG1532 amp MG2032 Mixer Grinders are equipped with flexible power supply cord and plug Either a receptacle or a pendant type connector is S available The receptacle reguires a type FD r electrical box not supplied 2 Pneumatic foot switch accessory can be easily added at any time Fig 1 3 The hopper side feed inlet can be ordered and factory installed for the right side of the hopper to allow product from a companion first cut grinder to feed directly into the hopper A plug assembly forthe side feedinlet a drip cup and adapter ring for the first cut grinder are available accessories The MG1532 hopper can hold up to 150 pounds of fresh meat The MG2032 hopper can hold up to 200 pounds of fresh m
9. t up through the flange from the bottom with the lockwasher next to the nut on top Fig 2 LEVELING Level the mixer grinder both front to back and side to side by loosening the two set screws on the caster shaft Fig 2 and screwing the caster up or down Tighten both set screws when level LUBRICATION The mixer grinder is shipped with oil already installed If oil loss is observed the oil levels of both transmissions should be checked prior to operation Contact Hobart Service PNEUMATIC FOOT SWITCH To install the pneumatic foot switch remove the lower front panel 6 screws Remove the knockout from the bottom front floor panel inside the machine compartment Fig 3 and insert the tube from the foot switch through the knockout hole Remove the cap from the barbed fitting at the bottom left side of the control box Fig 3 and connect the tube from the pneumatic foot switch onto the barbed fitting using the clamp provided A pliers will be needed to squeeze the clamp open during installation Avoid kinking the tube 4 Fig 2 MACHINE BASE FRAME LOCKWASHER WASHER GREASE FITTING PL 52464 D KNOCKOUT A CONTROL BOX BARBED FITTING Fig 3 ELECTRICAL CONNECTION WARNING ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND OR OTHER LOCAL ELECTRICAL CODES WARNING DISCONNECT THE ELECTRICAL POWER SUPPLY AND PLACE A
10. ue for proper cutting action Keep the grinder attachmentin a clean and sanitary condition MIXING ARM Fig 6 Loosen the bushing retainers two flange nuts and remove the bushing retainer Fig 5 Raise the hopper lid and pull the mixing arm from the sguare drive end lifting the mixing arm from the hopper Fig 6 When reassembling make sure TOP on the bushing retainer is up so the mixing arm runs straight between the round bushing and the square drive end Remove the mixing arm after disassembly of the grinder cylinder and worm Reassemble the mixing arm before assembly of the grinder cylinder and worm MIXING AND GRINDING The MG1532 has ahopper capacity of up to 150 pounds of fresh meat depending on the type of product The MG2032 has ahopper capacity of up to 200 pounds of fresh meat depending on the type of product Don t put frozen product in units with 5 HP Grind Motor Second cut meat may be mixed in the hopper for any desired length of time During the MIX operation the mixing arm rotates and the grinder worm does not Continuous self feeding occurs along with grinding in the MIX GRIND operation Mixing of uncut or unground meat is not recommended Grinding Procedure First Grind Fill hopper and close and latch the hopper lid Overfilling will bend the hopper lid and may cause the interlock to open the electrical circuit Push MIX GRIND Button to start grinding Press STOP Button to stop grinding Second Grind Fil
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