Related Manuals for Precision PMR Rotary Feeder
Summary of Contents for Precision PMR Rotary Feeder
- Page 1 PMR Rotary Feeder Service & Maintenance Manual Feeder Size: S/N: Rotor Helix: LH / RH Rotation: CW / CCW Temperature: Page 1 Updated June 2018...
- Page 2 PMR, descriptions of simple maintenance procedures, and information on ordering replacement parts. The Precision PMR Rotary Feeder is designed for a long service life, and ease of operation with low maintenance. Familiarization with the feeder and its function is a must; along with a routine maintenance plan.
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Page 3: Table Of Contents
Brass End-Seal Adjustment Feeder Rebuilding Appendix #1 – Feeder Configuration Appendix #2 – Feeder Installation Appendix #3 – PMR Rotary Feeder Knives Appendix #4 – Knife Replacement Appendix #5 – Brass End-Seal Adjustment Appendix #6 – Nord Drive Installation Instructions Precision Machine &... -
Page 4: Safety
Safety Safety is a primary concern at Precision Machine and Manufacturing, Inc. and we encourage our customers to make it their top priority also. State and local rules vary from location to location, and it is the user’s responsibility to follow those standards. -
Page 5: Warnings
PMR Rotary Feeder. Introduction The system operator should fully understand the function of the PMR Rotary Feeder to know its proper operation. The unit serves primarily as a feeder, to feed a bulk product into an air stream. - Page 6 The knife and helical rotor in a PMR Rotary Feeder are designed to shear off oversized material in the product stream. The PMR is not intended to shred or grind material. If the product stream includes a high percentage of oversized material, regular attention to condition of the knife and the adjustment of the knife are very important.
- Page 7 The diagrams in Appendix #2 show the optimal arrangement of the feeder under several different types of infeed equipment. The overall feeding system design and proper mounting of the Precision PMR Rotary Feeder is the responsibility of the plant owner and/or the system designer or installer.
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Page 8: Pmr Diagram And Terminology
PMR Feeder Terminology All Precision PMR Rotary Feeders are built with a “helical” rotor that shears material as the rotor turns into the stationary knife. The scissoring action creates “clean” cuts and is energy efficient. The hinged access door allows service technicians to inspect the knife, adjust the knife as... -
Page 9: Initial Inspection
Before installation, check the feeder configuration and confirm that the proper configuration has been ordered for your plant. While the Precision PMR Rotary Feeder is a heavy, sturdy piece of equipment it is possible for it to become damaged in shipment. Visually inspect the feeder for any damage. We have found that the drive shaft is particularly susceptible to damage in transport and/or unloading. -
Page 10: Daily Inspection
At the end of its life, the packing gland will bottom out and the packing material must be replaced. See instructions in the section Packing Replacement. Lubricate bearings – Precision recommends the use of a good-quality, all-purpose grease that is appropriate for the temperature conditions where the feeder is installed. Too much grease will damage bearing seals, and should be avoided. -
Page 11: Knives, Knife Adjustment, Knife Replacement
Visual inspection through the access door and measured clearance checks with a feeler gauge should be made on a regular basis. Precision recommends that the knives be visually inspected daily and that an inspection of the knife-to-rotor clearance with a feeler gauge be conducted at least bi-monthly. -
Page 12: Packing Replacement
If the knives are only worn to a dull condition, they may be re-sharpened. The proper angle on the knife in a PMR rotary feeders is 43⁰. Detailed instructions for replacing the knife in the PMR rotary feeder, can be found in Appendix Packing Replacement NOTE: BEFORE ANY INSPECTION OR MAINTENANCE, YOU MUST FOLLOW STANDARD ‘LOCK-OUT/TAG-OUT’... -
Page 13: Feeder Rebuilding
Every plant has different parameters for acceptable and unacceptable feeder performance so it is difficult for Precision to make broad recommendations for when your feeder will need to be rebuilt. A general rule that we have found to be useful is as follows: When the clearance between the rotor and barrel reaches approximately 2-3 times the original factory clearance, it is time to consider the possibility of a rebuild. -
Page 14: Appendix #1 - Feeder Configuration
Appendix #1 – Feeder Configurations Choosing the correct rotary feeder configuration for your plant and installing the feeder in the proper orientation relative to the pneumatic line flow under the feeder are very important. Left-handed and right-handed rotors each have two specific configurations that provide a smooth transition of the material being conveyed out of the rotor and into the T-injector and the pneumatic line. - Page 15 Page 15 Updated June 2018...
- Page 16 Page 16 Updated June 2018...
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Page 17: Appendix #2 - Feeder Installation
Appendix #2 – Feeder Installations Chain/Belt Conveyer Page 17 Updated June 2018... - Page 18 Cyclone/Baghouse Tailspout Page 18 Updated June 2018...
- Page 19 Infeed Conveyer Page 19 Updated June 2018...
- Page 20 Screw Conveyer Page 20 Updated June 2018...
- Page 21 Vibrating Screen Page 21 Updated June 2018...
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Page 22: Appendix #3 - Pmr Rotary Feeder Knives
Appendix #3 – PMR Rotary Feeder Knives Top Knife Feeder Part Number Thickness Width Length Angle ⁰ 14x18 3021006001 14 5/8 16x20 3021006002 16 1/8 20x20 3021006003 16 1/8 20x25 3021006004 20 5/8 20x30 3021006005 26 1/8 25x30 3021006006 26 5/8... -
Page 23: Appendix #4 - Knife Replacement
Appendix #4 – Knife Replacement Measure the length of the inside of the rotor. (See Figure 1.) Add 5/8” to this measurement. The knife should cover half the thickness of the rotor end. (See Figure 2.) Cut knife to length, (+/- 1/8”); a hot saw works best. Install knife with knife clamps. -
Page 24: Appendix #5 - Brass End-Seal Adjustment
2 and 5 are Puller Bolts (through holes) – see page 24. Precision has manufactured a limited number of rotary feeders with only five (5) set screws. If you have one of these rotary feeders, please contact Precision for information on Brass End-Seal Adjustment. - Page 25 Brass End-Seal Adjustment Page 25 Updated June 2018...
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Page 26: Appendix #6 - Nord Drive Installation Instructions
Appendix #6 – Nord Drive Installation Procedure The Precision PMR feeder, the Nord drive package, and the Precision mounting bracket are all heavy and should be lifted and positioned using proper techniques and equipment to assure the safety of personnel working on the installation. - Page 27 Step Slide the Nord drive onto the feeder drive shaft; make sure that the end of the drive shaft is firmly seated up against the snap ring inside the gearbox bore. Step Install the “fixing element” onto the end of the feeder shaft with the bolt supplied and tighten the bolt to pull the gearbox snap ring up tight to the end of the feeder drive shaft.
- Page 28 Step The Precision mounting bracket is shipped with two (2) loose mounting “ears” that are to be welded to the mounting bracket once the drive package is installed onto the feeder drive shaft and the mounting bracket is secured to the side of the feeder.
- Page 29 Step Weld the mounting ears onto the Precision mounting bracket – a continuous weld with good penetration will provide the most durable attachment. In operation, the mounting bracket can be under considerable torque and a solid weld is important to trouble-free operation...
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Page 30: Precision Machine & Manufacturing Standard Warranty
Machine and Manufacturing, Inc. Precision Machine and Manufacturing, Inc. agrees at its option to repair at the point of shipment or to replace without charge f.o.b. point of shipment, any part or parts of products of Precision Machine and Manufacturing, Inc.