Greenlee 39278

Greenlee Wire Duct Brush User Manual

Model: 39278

Product Overview

The Greenlee Wire Duct Brush is designed for efficient cleaning of various duct sizes. This specific model, the 3-Inch Duct Size brush, features durable steel bristles and a robust design for clearing sand, grit, and light obstructions from conduits and ducts. It is equipped with a pulling eye on one end and a smaller twisted eye on the other for easy attachment to cable pullers.

Greenlee 3-Inch Wire Duct Brush

Figure 1: Greenlee 3-Inch Wire Duct Brush. This image shows the brush with its flat steel bristles and the pulling eye at one end, designed for effective duct cleaning.

Specifications

AttributeDetail
Model Number39278
Duct Size3-Inch
Bristle MaterialSteel
Bristle TypeTwisted Knotted, Flat
Recommended UsesCleaning, Deburring (of sand, grit, light obstruction from duct)
Maximum Diameter2.87 inches
Max. Pulling Force200 pounds
Item Weight4.8 ounces
Product Dimensions10 x 10 x 12 inches (approximate package dimensions)
Country of OriginChina

Setup

The Greenlee Wire Duct Brush is designed for straightforward integration into duct cleaning operations. No complex assembly is required.

  1. Inspection: Before each use, visually inspect the brush for any signs of damage, excessive wear on the bristles, or deformation of the pulling eyes. Ensure the bristles are intact and securely attached.
  2. Duct Compatibility: Verify that the 3-inch duct brush is appropriate for the diameter of the duct or conduit you intend to clean. Using a brush that is too large or too small can reduce effectiveness or cause damage.
  3. Attachment: Securely attach the pulling eye of the brush to your cable puller or fish tape. Ensure the connection is robust enough to withstand the pulling force required to move the brush through the duct. The smaller twisted eye can be used for tailing or attaching a guide wire.

Operating Instructions

Follow these steps for effective cleaning of ducts and conduits using the Greenlee Wire Duct Brush:

  1. Prepare the Duct: If possible, remove any large, loose debris from the duct opening before inserting the brush.
  2. Insert the Brush: Carefully feed the brush into one end of the duct.
  3. Pull Through: Using the attached cable puller, slowly and steadily pull the brush through the entire length of the duct. Maintain a consistent pulling force, up to 200 pounds, to ensure thorough cleaning.
  4. Observe Resistance: Pay attention to any significant increase in resistance, which may indicate a major obstruction. Do not force the brush if it encounters severe blockage, as this could damage the brush or the duct.
  5. Repeat if Necessary: For heavily soiled ducts, it may be beneficial to pull the brush through multiple times or to use a smaller brush first to clear larger debris before using the 3-inch brush for finer cleaning.
  6. Remove and Inspect: Once the brush has passed through, remove it from the duct. Inspect the duct for cleanliness and the brush for collected debris.

Note: This brush is specifically designed for cleaning sand, grit, and light obstructions. It is not intended for clearing solid blockages or for heavy-duty reaming operations.

Maintenance

Proper maintenance will extend the lifespan and effectiveness of your Greenlee Wire Duct Brush:

  • Cleaning: After each use, thoroughly clean the bristles to remove any accumulated dirt, sand, grit, or debris. A stiff brush or compressed air can be used.
  • Drying: Ensure the brush is completely dry before storage to prevent rust on the steel bristles.
  • Storage: Store the brush in a dry environment, away from corrosive materials or extreme temperatures. Avoid storing it in a way that could bend or deform the bristles.
  • Inspection: Regularly inspect the pulling eyes for wear or damage. If the eyes show signs of weakening or cracking, the brush should be replaced to prevent failure during operation.

Troubleshooting

This section addresses common issues you might encounter when using the wire duct brush.

Brush gets stuck in duct:

  • Possible Cause: Duct is severely obstructed with large debris or a solid blockage.
  • Solution: Do not force the brush. Attempt to pull it back out. If it cannot be retrieved, consider using a smaller brush first to clear the path, or investigate the duct for the nature of the obstruction. This brush is for light obstructions, not solid blockages.
  • Possible Cause: Incorrect brush size for the duct.
  • Solution: Ensure the 3-inch brush is suitable for your duct's internal diameter.

Duct not clean after use:

  • Possible Cause: Insufficient passes through the duct.
  • Solution: Pull the brush through the duct multiple times to ensure all loose debris is cleared.
  • Possible Cause: Type of debris is too stubborn for the brush.
  • Solution: This brush is designed for sand, grit, and light obstructions. For hardened or sticky residues, a different cleaning method or tool may be required.

Pulling eye breaks:

  • Possible Cause: Excessive pulling force applied, exceeding the 200-pound limit.
  • Solution: Ensure pulling force is within specified limits. Do not use the brush for clearing heavy, immovable obstructions.
  • Possible Cause: Wear and tear or manufacturing defect.
  • Solution: If the brush is within its warranty period and the failure is due to a defect, contact Greenlee customer support for assistance.

Warranty Information

Greenlee Textron provides a warranty for this product:

Goods manufactured by Greenlee Textron will be free from defects in workmanship and material for a period of one year from the date of user purchase, provided such goods are installed, operated, used and maintained in accordance with Greenlee's written instructions.

This warranty covers defects in materials and workmanship under normal use and service. It does not cover damage resulting from misuse, abuse, neglect, alteration, accident, or unauthorized repair.

Support

For technical assistance, warranty claims, or further information regarding your Greenlee Wire Duct Brush, please contact Greenlee customer support.

  • Manufacturer: Greenlee
  • Website: www.greenlee.com (Please visit the official Greenlee website for the most current contact information and support resources.)
  • When contacting support, please have your product model number (39278) and purchase date available.

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This manual is for informational purposes only. Specifications are subject to change without notice.

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