Thank you for purchasing a Tri-Clover Product! This manual contains disassembly and assembly instructions, maintenance procedures, troubleshooting, and a complete parts list for all PR Series Pumps designed and manufactured by Tri-Clover Inc., Kenosha, Wisconsin. READ THIS MANUAL carefully to learn how to service these pumps. Failure to do so could result in personal injury or equipment damage.
IMPORTANT SAFETY INFORMATION Safety is very important! DO NOT attempt to modify any Tri-Clover product. To do so could create unsafe conditions and void all warranties. DO NOT place any Tri-Clover product in an application where general product service ratings are exceeded.
GENERAL INFORMATION GENERAL This manual contains installation, operation, cleaning, and repair instructions, with parts list, for PR, PRE, PRED pumps manufactured by Tri-Clover Inc. of Kenosha, Wisconsin. It also provides a troubleshooting chart to aid in determining pump malfunctions. WARNING Before servicing pump, disconnect electrical power source.
INSTALLATION UNPACKING AND INSTALLATION UNPACKING EQUIPMENT Check the contents and all wrapping when unpacking your equipment. Inspect all parts for damage that may have occurred during shipping. Note: If the plastic pump port covers have been broken or disturbed in shipment, dismantle fluid head to make sure it is free of all foreign materials before placing pump in service.
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INSTALLATION FLEXIBLE COUPLING ALIGNMENT There are two types of misalignment encountered with flexible couplings, angular misalignment and parallel misalignment. To check for angular misalignment, insert a taper gauge or feeler gauge at four places located 90° apart around the coupling as shown. Coupling halves will be aligned when the measurements are the same at all check points.
PRESSURE RELIEF COVER ADJUSTMENT Tri-Clover's relief cover is designed for added protection of the pump and other processing equipment. The product flow will stop or is reduced when the head pressure on the discharge side of the pump exceeds the pressure rating controlling the piston in the relief cover.
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INSTALLATION Manual: 1. Loosen jam nut (09B-6). 2. Turn the adjusting screw (09-5A) (clockwise to increase pressure - counterclockwise to decrease pressure) until the reading on the pump discharge line pressure gauge is the same as the predetermined maximum line rating - then retighten jam nut (09B-6). Pneumatic:* When back pressure is regulated by pneumatic control, the spring inside the relief cover must be removed prior to the operation.
MAINTENANCE CLEANING WARNING Before servicing the pump, disconnect the electrical power source, carefully relieve all pressure, and drain all fluids from the pump and connected piping. DISASSEMBLY OF PUMP FLUID HEAD It is necessary to disassemble parts of your pump for cleaning and sanitizing. Disassemble as described below after disconnecting the suction and discharge piping.
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Sequence of disassembly and assembly is the same for models PR, PRE and PRED except where noted. To reassemble the fluid head: 1. Lubricate shaft o-rings with silicone grease (Tri-Clover L1011B) and insert o-rings into grooves on shafts. 2. On PRED models, insert rear seal o-rings into alignment locating ring.
MAINTENANCE MAINTENANCE AND REPAIR Maintenance of the PR, PRE and PRED pumps includes frequent lubrication of the shaft bearings, checking the oil level in the timing gear compartment, changing of oil at regular intervals, and inspection of pump components. LUBRICATION OF OUTBOARD AND INBOARD BALL BEARINGS The bearings should be greased after every 100 operating hours, using a high quality grease such as Mobile Temp #1.
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MAINTENANCE 5. Remove the piston from the relief cover and carefully remove the o-rings and PTFE sleeves from the piston. 6. Slide off the drive shaft and pump shaft rotors. 7. Remove the casing and carefully remove the casing o-rings. 8.
MAINTENANCE ROTOR INSTALLATION Your Tri-Clover pump will operate only if the rotors are Figure Six correctly installed. Therefore carefully follow the installation procedure listed below. TWO LOBE ROTORS 1. Install 2D rotor onto top shaft. Note: It doesn't matter whether top shaft is pump shaft or drive shaft.
MAINTENANCE CLEANING AND INSPECTION 1. Remove cleanout hole cover, and remove any accumulation of grease from inside of the grease chamber. 2. Inspect the pump frame, gear cover and casing for cracks or other damage that could impair function of the pump. 3.
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MAINTENANCE 6. Install the woodruff keys in the shaft keyslots and press the Figure Eight timing gears onto the shafts. Timing 7. Carefully align the timing marks on the gears as shown in Figure Marks Eight. 8. Install the timing gear retaining rings (Part No. 98). 9.
TROUBLESHOOTING TROUBLESHOOTING GUIDELINES Tri-Clover pumps are relatively maintenance free with the exception of sanitizing and lubrication. Like any piece of machinery, however, occasional problems can arise. The troubleshooting chart provides a means of determining and correcting most of your pump problems. The motor manufacturer should be contacted for specific repair instructions on the motor.
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TROUBLESHOOTING PROBLEM PROBABLE CAUSE REMEDY 4. Pump is noisy a. Magnetic hum. a. Consult motor manufacturer. b. Motor bearings are worn. b. Replace bearings. c. Foreign matter is rotating c. Remove casing and remove with impeller. foreign matter. d. Rotors are binding. d.
PARTS LIST Click here to Order Parts ORDERING INFORMATION ORDERING REPAIR PARTS All orders for repair parts must contain the following data. 1. Complete model number (located on nameplate). 2. Pump serial number (located on nameplate). 3. Description and part number from parts list. The exploded views and accompanying parts lists in this section facilitate ordering repair parts from the factory.
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All orders are subject to acceptance by Tri-Clover Inc. at its Purchaser’s sole and exclusive remedy and Tri-Clover Kenosha, Wisconsin or Distribution Center* offices only. No Inc.’s maximum liability for claims arising hereunder or for...
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