MODEL 2091

MODEL 2091
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MODEL 2091

Product catalog summary
Introduction
The B. H. Bunn Model 2091 Tying Machine is engineered to automate the tying of materials like mail, packages, and produce, enhancing efficiency over manual methods. It is built with durable materials such as steel, cast iron, and high-impact plastic, featuring safety measures like enclosed moving parts and easy maintenance access.
Preparation for Use
Uncrating and ensuring power requirements are met are essential before use. The machine operates on a 115-volt power source and accommodates various tying materials. Proper threading is crucial, with detailed procedures provided in the manual.
Operation
Pre-operation checks include ensuring the machine is off, verifying threading, and inspecting for defects. The machine supports single, double, and triple wraps, with specific instructions for each. Cross-wrap operations require repositioning the package for a second wrap.
Maintenance
Regular lubrication and maintenance are vital for optimal performance. The manual includes a lubrication table and troubleshooting information for common issues.
Troubleshooting
Guidance on achieving the perfect knot and a troubleshooting table are provided to resolve operational issues.
Parts List
A comprehensive parts list covers assemblies like the main table, knotter head, and twine arm, with additional information for specific models.
Operation Procedures
1. Position the package over the gap between tables.
2. Depress the foot pedal to start the tying arm.
3. Rotate the package 90 degrees and depress the pedal again to complete the cycle.
4. Remove the package and repeat.
5. Turn off the machine after use.
After Operation Procedures
1. Check and replenish twine or tape supply.
2. Clean lint from the stringholder casting.
3. Use an air compressor to remove dust.
4. Inspect and replace the knife blade if necessary.
Maintenance and Lubrication
1. Establish a routine inspection and lubrication schedule.
2. Check components daily for lint, knife condition, V-belt tension, and loose hardware.
3. Lubricate parts every 30 to 150 hours as specified.
4. Inspect for abnormal noises or loose components.
5. Check the power cord and motor for damage.
Troubleshooting
1. If the machine does not operate, check the power cord, circuit breaker, and switch.
2. For frequent twine breaks, ensure proper twine size and adjust tension.
3. For knot issues, check for obstructions and adjust settings.
4. Refer to the troubleshooting table for specific issues.
Parts List
1. Use model and serial numbers when ordering parts.
2. Specify twine or tape type for accurate replacement.
3. The list includes detailed descriptions and quantities for each assembly.
Main Table Support and Kickout Assembly
Lists parts for the main table support and kickout assembly, emphasizing the use of serial numbers for ordering. Key components include the main shaft and chain gear assembly. A note advises checking the timing tooth for wear.
Main Gear and Chain Gear Assembly
Lists parts for the main gear and chain gear assembly, stressing serial numbers for ordering. Includes components like the clutch assembly and bearings, with specific instructions for certain serial numbers.
Main Clutch Assembly
Details parts for the main clutch assembly, focusing on the twine arm assembly and associated components. Notes on using Loctite No 242 and assembly-only items are included.
Warranty Information
The warranty covers defects in material and workmanship for 90 days post-installation, with a one-year warranty on electrical motors. The warranty is void if unauthorized parts or services are used or if the installation report is not completed and returned. Emphasizes using genuine Bunn parts and twines.
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Catalog excerpts

MODEL 2091-1

MODEL 2091 TYING MACHINE OPERATOR MANUAL The Original Package Tying Machine B. H. Bunn Company 2730 Drane Field Rd., Lakeland, Florida 33811-1395 Telephone: 863/647-1555 Toll Free: 800/222-BUNN Fax: 863/686-BUNN Website: www.bunntyco.com

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MODEL 2091-2

BUNN TYING MACHINE SERIAL # Notice Do not attempt to operate this Equipment before reading the operation instructions and performing the Before Operation Checks paragraph in section 3 of this manual. OPERATOR SAFETY REMINDERS The National Safety Council reminds us  that most accidents are caused by the failure of some individual to follow simple and fundamental safety rules or precautions. For this reason, you as a careful operator, are the best insurance against an accident.  Regardless of the care used in the design and construction of any type of equipment there are many conditions that...

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MODEL 2091-3

Tying Machine Operator Manual Foreword This manual contains instructions for installation, operation, preventative maintenance, troubleshooting and repair parts identification for your tying machine manufactured by the B. H. Bunn Company, Lakeland, Florida. Proper use of the manual should ensure safe and efficient operation and maintenance of the tying machine. Because of the increasing staff of Service Representatives, B. H. Bunn Company can now offer a Maintenance Contract. Contact your local service representative, who is capable to render factory approved service, for full details maintenance...

 Open the catalog to page 3
MODEL 2091-4

Section I - Introduction Purpose of Tying Machine The primary purpose of the tying machine is to automatically tie mail, packages, cartons, piece parts, printed matter, newspaper, laundry, produce, meats, corrugated cardboard and miscellaneous materials and products requiring a secure wrap (figure 1). The tying machine ties almost everything that was previously wired, banded, taped, strapped, tied by hand in offices, factories and commercial establishments. The tying machine reduces tying time, employee effort and fatigue, reduces twine lint and waste, enables trained operators to make secure...

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MODEL 2091-5

Section I – Introduction Continued Simultaneously, the twine arm is continuing its arc and the knotter body turns counter clockwise opening the jaw for the two strands of twine which are wrapped around the knotter body assembly. The strands of twine are brought through the jaws and the jaws firmly lock. The knotter body assembly then moves towards its finished position and the stripper forces the twine strands off the knotter body jaws, into the tight part of the knot. As the two strands of twine are pulled into loops from the knotter body assembly jaws, the knifetrap moves forward and cuts a...

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MODEL 2091-6

Single Wrap — The arm carries the twine arm around once and the knot is formed. Double Wrap — One Way Two wraps in one direction with one knot. Triple Wrap — One Way Three wraps in one direction with one knot. Double Wrap* — Cross Tie One wrap in each direction with only one knot. Triple Wrap** — Cross Tie One wrap in one direction; Two wraps in other direction — with only one knot. ** Triple wrap cross tie additionally provides: (1) Three * Double wrap cross tie also provides: (1) two wraps in wraps in one direction if package is not turned between one direction if package is not turned between...

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MODEL 2091-7

Section II - Preparation For Use Uncrating instructions 1. Cut bands securing the carton to the skid. 2. Cut the bottom of the cardboard carton where it is secured to skid. 3. Carefully raise and remove the carton from the tying machine. 4. Carefully remove the steel strapping from the machine and then pull the tying machine away the skid. 5. Remove the box in the twine container shipped with the tying machine containing four casters. 7. Using the casters shipped with the tying machine, insert a caster into the caster socket on each leg of the tying machine. Note: pany The manual should be wrapped...

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MODEL 2091-8

Threading Procedures Before the tying machine is shipped, it is threaded through each guide starting from the twine container to the stringholder button. To avoid threading problems in the future, you should become familiar with the threading sequence at this time. Complete threading of the tying machine can be avoided if the end of the twine or tape being used is caught before it leaves the twine container. This is accomplished by simply tying the end of the existing twine or tape to the starting end of the new twine or tape with a square knot. If the end of the twine or tape is not caught before...

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MODEL 2091-9

Before Operation Checks 1. Turn “ON-OFF” switch to the “OFF” Position. 2. Check for proper threading. 3. Check if twine or tape cone is properly seated on foam pad of twine container. 4. Check twine running tension by pulling twine from end of twine arm assembly. A smooth easy running tension should be felt. 5. Visually check the tying machine for any mechanical defects or missing parts. Tying Size Limitations The capacity graph on the Model Characteristics Sheet at the front of the manual indicates the maximum height and width of the packages that can be tied. Bunn tying machines adjust automatically...

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MODEL 2091-10

Section IV – Maintenance Lubrication Requirements ARROWS IN PHOTOS IDENTIFY OIL HOLES AND LUBRICATION POINTS Please refer to Lubrication / Maintenance for frequency. Knotter Head Front Rear Main shaft, Clutch shaft Main Table, Clutch Fork, Kickout Wedge. Knotter Head Side View, Dual Tension, Knife Trap Front Frame Main Shaft, Drawslide Lever Main Table

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MODEL 2091-11

A good preventative maintenance program is a major step forward to assure trouble-free tying machine operation. In order to be effective, routine inspection, lubrication and adjustment schedule must be established and followed. For tying machines subjected to normal usage which is considered to be approximately 30 hours of operation weekly, the following maintenance and lubrication schedule should be followed. Substantial deviations from normal usage should require an adjustment in the indicated frequencies. The Lubrication Requirement has frequencies of 50 and 150 hours. The following mechanical...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.