b'GENERAL INFORMATION The ParkUSA Macerator Assembly is an In-Line Grinder system The ParkUSA Macerator Assembly is an In-Line Grinder system used on sewageused on sewage systems. systems. The unit is recommended for gravity-flow sewer lines which mayThe unit is recommended for experience high solid concentrations that can clog the sewer piping. Typicalgravity-flow sewer lines which applications include detention and correctional institutions where vandalism may experience high solid is a frequent occurrence. Inmates tend to stuff sheets, towels, and shoes downconcentrations that can clog toilets to cause flooding of the building. The macerator grinds up these solidsthe sewer piping. avoiding costly flooding and maintenance.OPERATION FEATURESThe macerator assembly runs continuously to grind up all the sewage that entersPre-Engineered Design of the the system. A control panel, typically located in a mechanical room, is the brainsTotal Grinder Assembly Including behind the grinder operation. Solids are pulverized with rotating hardened steelVault Enclosureteeth. In the event an object is too hard or massive and requires multiple passesIntegral Bypass and Isolation through the grinder, the controller will reverse the grinder and repeat the process.ValvesThis sequence is performed multiple times until the object is destroyed. If theSump Pump to Avoid Water grinder is presented with objects which cannot be shredded after repeated tries,Damagethe controller will shut down the grinder and trigger a service alarm. Uses Dual-Shafted Technologyto Reduce Solids in StandardSYSTEM COMPONENTS and Industrial ApplicationsMain Housing: The main housing shall be cast from grade 65-45-12 Ductile Iron.Utilizes a 3 or 5 Horsepower Unit to be equipped with access port covers. motor with a 29:1 Gear Reducer2-inch 4140 Steel Hexagonal Cutters: Cutters and spacers shall be arranged in a one-piece multi-toothShaftscartridge. The cutter cams and shaft shall be hardened AISI 4140 alloy steel.Varied Cutter Options to Seals and Bearings: The primary seals shall have elastomeric members whichOptimize Performance and operate as opposing disk springs when compressed at the same time keepingParticle Sizethe faces of the two metallic rings together insuring positive sealing. BearingsProvides Protection of shall be oversized deep groove double seal type.Downstream Pumps and Processing EquipmentDrive and Motor: The macerator will be driven by a direct coupled speedFeatures In-Line or In-Channel reducer with a 5 H.P. Immiscible, 230/460 volts 3 phase 60 hertz motor. Cutter Stack Tightening A flexible coupling will be used to segregate the reducer from the machine. CapabilitiesThe motor will have a service factor of 1.15. Shaft Gears: Two Counter rotating shafts will be driven by two heavy-duty spur gears hardened to a Rockwell C of 40-45. Electrical Controls: An Automatic Reversing Controller will be supplied with oil tight controls and overload heater protection. The contents of the controller will be encased in a NEMA enclosure. A three position Hand-Off-Auto switch will control the mode of operation. The controller will sense overload currents indicating a jam condition. The macerator will stop, then pause and reverse rotation. An Alarm light will be illuminated after four overloads. The controller will reset itself back to zero count if no overloads occur after 30 seconds.The controller shall incorporate a main disconnect switch. A vault sump pump relay and high-water level indicator shall be incorporated in the panel. 420'