Pittsburgh Pro 239 Professional Drive Click Stop Torque Wrench

Introduction

The Pittsburgh Pro 239 Professional Drive Click Stop Torque Wrench is a precision instrument designed for applying specific torque values to fasteners. This tool is essential for applications where accurate tightening is critical to prevent damage to components or ensure proper assembly. It features a heavy-duty cam and pawl mechanism, offering reliable and accurate torque application within its specified range.

Safety Information

Always observe the following safety precautions when using the torque wrench:

• Wear Eye Protection: Always wear ANSI-approved safety goggles or a face shield when operating tools.
• Proper Use: Use the torque wrench only for its intended purpose of applying specific torque to fasteners. Do not use it as a breaker bar or for loosening fasteners.
• Do Not Exceed Capacity: Never exceed the maximum torque capacity of 150 ft. lbs. Doing so can damage the tool and lead to injury.
• Keep Clean: Keep the wrench clean and free from oil, grease, or other contaminants that could affect its accuracy or your grip.
• Storage: Store the torque wrench in its protective case and set to the lowest torque setting (but not below the minimum) when not in use to relieve spring tension and maintain calibration.
• Calibration: Torque wrenches are precision instruments and should be periodically checked for calibration by a qualified technician.

Components and Features

The Pittsburgh Pro 239 Torque Wrench is a 1/2" drive click-type wrench with a reversible head. Key features include:

• Drive Size: 1/2 inch square drive.
• Torque Range: 20 to 150 ft. lbs.
• Accuracy: Accurate to within +/- 4%.
• Mechanism: Heavy-duty cam and pawl mechanism for reliable clicking.
• Reversible Head: Allows for tightening in both clockwise and counter-clockwise directions, though torque measurement is typically for clockwise tightening.
• Material: Constructed from durable Alloy Steel.
• Length: Approximately 18 inches (45.72 cm).

Setup

1. Unpack: Carefully remove the torque wrench from its packaging and protective case.
2. Inspect: Before each use, inspect the wrench for any signs of damage, wear, or foreign debris. Ensure the drive head moves freely and the adjustment mechanism operates smoothly.
3. Clean: Wipe down the wrench with a clean, dry cloth if necessary.
4. Attach Socket: Select the appropriate 1/2-inch drive socket for your fastener and firmly attach it to the square drive head of the wrench.

Operating Instructions

1. Set Torque Value:
   • Locate the locking knob at the end of the handle. Pull it down to unlock the adjustment mechanism.
   • Rotate the handle to align the desired torque value on the main scale with the zero mark on the thimble scale.
   • For intermediate values, continue rotating the handle until the desired increment on the thimble scale aligns with the main scale line.
   • Push the locking knob back up to secure the setting. Ensure it is fully engaged to prevent accidental changes during use.
2. Apply Torque:
   • Place the socket onto the fastener.
   • Apply smooth, steady pressure to the handle in a clockwise direction (for standard right-hand threads) until you feel and hear a distinct "click" from the wrench. This click indicates that the preset torque value has been reached.
   • Note: Do not continue to apply force after the click. Over-tightening can damage the fastener or component.
3. Reversing the Drive: The wrench head is reversible. To change the direction of the drive, simply flip the small lever on the wrench head. While the wrench can operate in both directions, its accuracy for torque measurement is typically specified for clockwise tightening.
4. Reset After Use: After each use, rotate the handle to set the torque wrench to its lowest setting (20 ft. lbs.) before storing. This relieves tension on the internal spring and helps maintain the wrench's calibration over time.

Maintenance

• Cleaning: Wipe the wrench clean with a dry, lint-free cloth after each use. Do not use solvents or harsh chemicals, as they may damage the finish or internal components.
• Storage: Store the torque wrench in its original protective case in a clean, dry environment. Always set the wrench to its lowest torque setting (20 ft. lbs.) before storage to preserve the spring's integrity.
• Lubrication: The internal mechanism is factory lubricated and generally does not require user lubrication. If the mechanism feels stiff or sticky, consult a professional for service.
• Calibration: For professional or critical applications, it is recommended to have the torque wrench calibrated annually or after approximately 2,500 cycles, whichever comes first.

Troubleshooting

Specifications

• Model Number: 239
• Drive Size: 1/2 inch
• Torque Range: 20 - 150 ft. lbs. (Foot Pounds)
• Accuracy: +/- 4%
• Material: Alloy Steel
• Finish: Painted
• Head Style: Fixed Square, Reversible
• Product Dimensions: 45.72 x 5.08 x 5.08 cm (18 inches length)
• Item Weight: 1.45 kg (3.15 lbs shipping weight)
• Operation Mode: Mechanical
• Country of Origin: China
• UPC: 792363002394, 735090843144

Warranty and Support

Specific warranty information for the Pittsburgh Pro 239 Professional Drive Click Stop Torque Wrench should be obtained directly from the retailer or manufacturer at the time of purchase. Please retain your proof of purchase for any warranty claims.

For technical support, service, or inquiries regarding parts, please contact the seller or the manufacturer, Pittsburgh Pro, through their official customer service channels. Refer to the product packaging or the point of purchase for contact details.