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U-Series Thermoforming Granulator
Write Down Your Serial Numbers Here For Future Reference:
_________________________
_________________________
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We are committed to a continuing program of product improvement.
Specifications, appearance, and dimensions described in this manual are subject to change without notice.
DCN No. ____________
© Copyright 2009 All rights reserved.
Models: 44U, 56U & 74U
Part Number: U-0040-C
Bulletin Number: CG6-625
Effective: May 6, 2009
_________________________
_________________________
_________________________
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Summary of Contents for Cumberland U-Series
- Page 1 U-Series Thermoforming Granulator Models: 44U, 56U & 74U Part Number: U-0040-C Bulletin Number: CG6-625 Effective: May 6, 2009 Write Down Your Serial Numbers Here For Future Reference: _________________________ _________________________ _________________________ _________________________ _________________________ _________________________ We are committed to a continuing program of product improvement.
- Page 2 (508) 399-6400. Have the order number and item number available. Hold the items until you receive shipping instructions. Returns Do not return any damaged or incorrect items until you receive shipping instructions from the shipping department. U-Series Thermoforming Granulators...
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Page 3: Table Of Contents
Lubrication......................... 18 Replacing and Adjusting the Knives................19 Rotor Knives ......................19 Bed Knives ......................20 Sharpening the Knives ....................22 Rotor Knife Sharpening ..................22 Bed Knife Sharpening ..................22 Adjusting Belt Tension....................23 Motor Drive Belt Replacement .................. 24 U-Series Thermoforming Granulators... - Page 4 Drawings and Specifications (including Options) ............30 Features ......................30 Specifications ......................30 Dimensions......................31 Illustrated Parts Breakdown ..................32 Spare Parts List......................34 Typical Wiring Diagram ..................... 35 Recommended Torque for Screws................36 Technical Assistance....................37 Parts Department ....................37 Service Department.....................37 Sales Department....................37 U-Series Thermoforming Granulators...
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Page 5: Chapter 1: Safety
Caution! CAUTION indicates a potentially hazardous situation or practice that, if not avoided, may result in minor or moderate injury or in property damage. U-Series Thermoforming Granulators Safety 5 of 37... -
Page 6: General Safety Regulations
Each individual must take responsibility for observing the prescribed safety rules as outlined. All caution, warning and danger signs must be observed and obeyed. All actual or potential danger areas must be reported to your immediate supervisor. U-Series Thermoforming Granulators Safety 6 of 37... -
Page 7: Warnings And Precautions
NEVER be worn. Long hair must be tied back or placed in a tight fitting hairnet. NEVER lean against or rest hands or feet on the granulator when it is in operation or open for maintenance. NEVER stand on the granulator when it is in operation. U-Series Thermoforming Granulators Safety 7 of 37... - Page 8 We have long recognized the importance of safety and have designed and manufactured our equipment with operator safety as a prime consideration. We expect you, as a user, to abide by the foregoing recommendations in order to make operator safety a reality. U-Series Thermoforming Granulators Safety 8 of 37...
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Page 9: Chapter 2: Functional Description
95 dbA or less in most applications. Our traditional ruggedness includes heavy steel knife blocks and a cutting chamber made of thick steel plate with oversize bearing housings. Safety interlock switches prevent starting the machine with the in-feed chute or front access door removed. U-Series Thermoforming Granulators Functional Description 9 of 37... -
Page 10: Typical Features And Components
(through ducting) to the cyclone separator. The cyclone separator allows the granulated material to drop out of the air stream into a bin or container. Base The base is caster-mounted, with four swivel (two locking) casters for easy positioning. U-Series Thermoforming Granulators Functional Description 10 of 37... -
Page 11: Safety Features
Figure 1: Safety Features, Interlocks, and Limit Switches Drive Chain/Tensioner Arm Safety cover In-feed Chute Bolts In-feed Chute Drive Belt Safety Cover Swivel Caster Floor Locks Actuator Arm Bolt Safety Switch Base Area Bed Knife Cover U-Series Thermoforming Granulators Functional Description 11 of 37... -
Page 12: Chapter 3: Installation
“normal running” and check periodically to maintain tension at the recommended value. See Section 5-5 on page 23 for the belt tensioning procedure. U-Series Thermoforming Granulators Installation 12 of 37... -
Page 13: Electrical Connections
Reverse any two of the three power line connections to the blower motor. c. Re-connect the incoming power supply line, and recheck the blower motor rotation. 7. Allow all motors to run up to speed for at least 30 seconds. U-Series Thermoforming Granulators Installation 13 of 37... -
Page 14: Accessing The Cutting Chamber
2. Replace the access panel and tighten in position, making sure that the interlock screw sets the safety switch actuator arm into its correct operating position. 3. Replace line fuses, turn power on, and remove the out of service tag from the machine. U-Series Thermoforming Granulators Installation 14 of 37... -
Page 15: Initial Start-Up
Thereafter, rotor knife retaining screws should be checked weekly. Note: The rotor must be rotated at least two rotations every 30 days to prevent brinnelling and corrosion of raceways. U-Series Thermoforming Granulators Installation 15 of 37... -
Page 16: Chapter 4: Operation
6. After clearing the jam, be certain that the screen and all guards and covers are secured in place before connecting power and starting the machine. U-Series Thermoforming Granulators Operation 16 of 37... -
Page 17: Shut-Down
3. Press the drive motor “stop” button. This shuts off the rotor drive motor. 4. After the granulator has stopped, press the airveyor stop button (if applicable) located at the blower motor. 5. Turn the main power switch to off. U-Series Thermoforming Granulators Operation 17 of 37... -
Page 18: Chapter 5: Maintenance
Feed roll drive chain Molykote Lubricant As required by visual inspection Rotor bearings Chevron SRI #2 2 Months or 1500 hours at 1 Exxon Andok C oz./bearing. Lidok EP1 U-Series Thermoforming Granulators Maintenance 18 of 37... -
Page 19: Replacing And Adjusting The Knives
8. Re-check the gap between the back of the knife and the knife seat. If necessary, readjust the knife. 9. Adjust the clearance between the bed knives and rotor knives. (See “Bed Knives” on page 20.) U-Series Thermoforming Granulators Maintenance 19 of 37... -
Page 20: Bed Knives
12. Reset the downstroke cover in position and tighten in place with the downstroke cover screws. Make sure the safety switch actuator arm screw sets the arm in the correct switch operating position. U-Series Thermoforming Granulators Maintenance 20 of 37... - Page 21 Rotor Downstroke Cover Locking Bolts Downstroke Bed Knife Adjustment Screws and Lock Nuts Figure 5: Upstroke Bed Knife and Screens Upstroke Bed Knife Adjusting Screw and Lock Nut Upstroke Bed Knife Locking Bolts U-Series Thermoforming Granulators Maintenance 21 of 37...
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Page 22: Sharpening The Knives
35° 35° Grind these Grind these surfaces only surfaces only 20° 3.089 (min.) Std. Bed Knife Std. Bed Knife 3.028 (min.) 3.307 (new) 2.256 (min.) 3.246 (new) 2.256 (min.) 2.756 (new) 2.756 (new) U-Series Thermoforming Granulators Maintenance 22 of 37... -
Page 23: Adjusting Belt Tension
12.0 *This deflection force value relates to a single V-belt element. Therefore, if the belt is a 3-V element (3V-banded), this value must be multiplied by 3. Deflection = Belt Span Belt Span=37” U-Series Thermoforming Granulators Maintenance 23 of 37... -
Page 24: Motor Drive Belt Replacement
7. Replace the line fuses and turn main power on. Figure 8: Adjusting the Motor Base Belt Guard Drive Motor Motor Base Slide Mount Screws Motor Slide Base Adjusting Screws Motor Slide Base U-Series Thermoforming Granulators Maintenance 24 of 37... -
Page 25: Chapter 6: Troubleshooting
Such hasty substitutions will only destroy the new component. Refer to wiring diagrams and schematics. Locating mechanical problems, should they occur, is relatively straightforward. When necessary, refer to the parts catalog section. U-Series Thermoforming Granulators Troubleshooting 25 of 37... -
Page 26: Electrical Faults
Motor will start when Worn bearings Check and replace if disconnected from load but necessary according to not when connected manufacturer’s literature U-Series Thermoforming Granulators Troubleshooting 26 of 37... -
Page 27: Processing Faults
When granulating rubber, Increase talc percentage rate insufficient talc causes of in-feed freshly cut surfaces to re- adhere Blockage in aiveyor Check direction of fan rotation, check venturi and line or chute for blockage U-Series Thermoforming Granulators Troubleshooting 27 of 37... -
Page 28: Mechanical Faults
Cracks caused by incorrect Contact our technical sales grinding department Excessive knife wear Open knife setting Re-set knives Screen breakage Incorrectly seated screen Check that the screen is seated correctly and fully in its cradle U-Series Thermoforming Granulators Troubleshooting 28 of 37... -
Page 29: Chapter 7: Appendix
Refer to this manual for assistance in installing and maintaining a highly efficient machine. Questions regarding areas that are not covered in the manual should be referred to the customer service manager at the factory at (800) 229-2919. U-Series Thermoforming Granulators Appendix 29 of 37... -
Page 30: Drawings And Specifications (Including Options)
3/4 hp, D.C. 1 hp, D.C. Drive Parts V-belt Electrical NEMA 12 with safety interlocks Components Controls 230 or 460 Volt / 3 phase/ 60 Hertz, 115 Volt NEMA 12 Labels Safety/caution/operation (English) French/Spanish U-Series Thermoforming Granulators Appendix 30 of 37... -
Page 31: Dimensions
Dimensions U-Series Thermoforming Granulators Appendix 31 of 37... -
Page 32: Illustrated Parts Breakdown
Illustrated Parts Breakdown U-Series Thermoforming Granulators Appendix 32 of 37... - Page 33 U-Series Thermoforming Granulators Appendix 33 of 37...
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Page 34: Spare Parts List
Rotor Knives 3RH / 3LH 5RH / 5LH Rotor Knife Bolts Bed Knives Bed Knife Bolts Bed Knife Washers Bearings Bearing Housings Screens Screen Cradle Bolts 4/4 (8) 4/4 (8) 6/6 (12) V-Belts Casters U-Series Thermoforming Granulators Appendix 34 of 37... -
Page 35: Typical Wiring Diagram
Typical Wiring Diagram U-Series Thermoforming Granulators Appendix 35 of 37... -
Page 36: Recommended Torque For Screws
(Grade 10.9 fine thread screws in un-lubricated conditions) Screw Size Torque NM. Torque Ft. Lbs. Note: Threads must be dry. Screw threads should be wiped with an oil-dampened cloth before installation to prevent galling. U-Series Thermoforming Granulators Appendix 36 of 37... -
Page 37: Technical Assistance
Call (508) 399-6400 Monday through Friday 8am-5pm EST. Our products are sold by a worldwide network of independent sales representatives. Contact our sales department for the name of the sales representative nearest you. U-Series Thermoforming Granulators Appendix 37 of 37...
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