PT M632 - User Manual

1/2 IN. DR. STUBBY IMPACT WRENCH
OWNER’S MANUAL
Stock Number M632
WARNING!
READ, UNDERSTAND AND FOLLOW ALL INSTRUCTIONS AND WARNINGS
BEFORE OPERATING THIS TOOL. FAILURE TO DO SO MAY RESULT IN
PERSONAL INJURY AND/OR PROPERTY DAMAGE AND WILL VOID
WARRANTY.
LIMITED WARRANTY
PERFORMANCE TOOL® extends only the following warranties, and only to original
retail purchasers. These warranties give specific legal rights. Except where prohibited
by local law, the law of the State of Washington governs all warranties and all
exclusions and limitations of warranties and remedies. There may be other rights which
vary from state to state.
PERFORMANCE TOOL® warrants the product to be free from defects in materials and
workmanship under normal use and service. A defective product may be returned for
a free replacement within 90 days from the date of purchase, provided that product is
returned to place of purchase immediately after discovery of defect. After 90 days and
up to one year from date of purchase, PERFORMANCE TOOL® will replace at no
charge any parts which our examination shall disclose to be defective and under
warranty. These warranties shall be valid only when a sales receipt showing the date of
purchase accompanies the defective product or defective part (s) being returned. For
part (s) after 90 days, please remit your request, postage prepaid to:
PERFORMANCE TOOL, P.O. Box 88259 Tukwila, WA 98138
These warranties exclude blades, bits, punches, dies, bulbs, fuses, hoses, and other
consumables which must be replaced under normal use and service. These warranties
shall not apply to any product or part which is used for a purpose for which it is not
designed, or which has been repaired or altered in any way so as to affect adversely
its performance or reliability, nor shall these warranties apply to any product or part
which has been subject to misuse, neglect, accident or wear and tear incident to
normal use and service.
PERFORMANCE TOOL® does not authorize any other person to make any warranty or
to assume any liability in connection with its products.
Except for warranties of title and the limited express warranties set forth above,
PERFORMANCE TOOL® makes no express or implied warranties of any kind with
respect to its products. In particular, PERFORMANCE TOOL® makes no implied
warranty of merchantability and no implied warranty of fitness for any particular
purpose, except that for goods purchased primarily for personal, family or household
use and not for commercial or business use, PERFORMANCE TOOL® makes an
implied warranty of merchantability (and, if otherwise applicable, an implied warranty
of fitness for a particular purpose), but only for the particular qualities or
characteristics, and for the duration, expressly warranted above.
The laws on limitation of implied warranties may differ from state to state, so the
above limitations may not apply in all cases.
PERFORMANCE TOOL® shall not be liable for consequential, incidental or special
damages resulting from or in any manner related to any product, or to the design, use,
or any inability to use the product. The sole and exclusive remedy for a defective
product or part shall be the repair, or replacement thereof as provided above. The laws
on limitation of remedies or on consequential, incidental or special damages may vary
from state to state, so the above limitations may not apply in all cases.
© Copyright 2019 WILMAR CORPORATION, P.O. Box 88259 Tukwila, WA 98138

Summary

Limited Warranty

Warranty Coverage and Returns

Covers defects in materials/workmanship, free replacement within 90 days, or parts up to one year.

Warranty Exclusions and Limitations

Excludes consumables, misuse, alteration, and limits implied warranties to merchantability/fitness for personal use.

Liability Limitations

Excludes consequential, incidental, or special damages; sole remedy is repair or replacement.

Owners Manual Warnings

General Operating Warning

Read and follow all instructions and warnings before operating the tool to prevent injury or damage.

Specifications

Important Safety Information

General Safety Precautions

Essential safety guidelines for operation, including work area, dress code, alertness, and tool handling.

Troubleshooting

Troubleshooting Insufficient Power

Addresses causes and solutions for low power, such as clogged passages, low air supply, or leaks.

Air Source Requirements

Air Source Guidelines

Use clean, dry, regulated air; ensure correct CFM output; drain tank daily; use proper hoses and fittings.

Assembly Instructions

Tool Assembly Steps

Steps for connecting the air supply, including adding oil and mounting sockets.

Operation Guide

Fastener Tightening;Loosening

Instructions for forward/reverse operation and using the variable speed trigger and power regulator.

Care and Maintenance

Routine Maintenance

Recommends in-line oiler, regular lubrication, and cleaning with a cotton rag after each use.

Parts List

Additional Safety Information

General Tool Handling Safety

Guidelines on keeping hands clear, not carrying by hose, avoiding excessive force, and tool care.

Impact Wrench Specific Safety

Ensures correct socket use, proper tightening, avoiding over-impact, and using two hands for control.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The device described in this manual is a 1/2 IN. DR. STUBBY IMPACT WRENCH, identified by Stock Number M632. It is a pneumatic tool designed for installing, tightening, removing, and loosening threaded fasteners.

Function Description:

The impact wrench operates using compressed air as its power source. It features a variable speed trigger and a power regulator valve, allowing users to control the output force for different applications. The tool's anvil rotates clockwise for tightening fasteners and counterclockwise for loosening them. It is specifically designed for use with impact sockets and is not suitable for standard sockets. The power regulator valve has three settings (small, medium, large dashes) which do not denote specific power outputs but rather serve as references for adjusting the amount of power. Setting 1 (small dash) provides the least amount of power, suitable for mounting threaded fasteners, while Setting 3 (large dash) provides the greatest amount of power for tightening. In reverse, the tool operates at maximum power to easily release threaded fasteners.

Important Technical Specifications:

• Drive Size: 1/2 inch
• Max Reverse Torque: 767 ft. lbs.
• Max Forward Torque: 667 ft. lbs.
• Working Torque: 50-580 ft. lbs.
• Air Pressure: 90 p.s.i.
• Average Air Consumption: 7 C.F.M.
• Free Speed: 12,000 RPM
• Air Inlet (N.P.T.): 1/4 inch
• Hose Size (I.D.): 3/8 inch
• Weight: 3.25 lbs.

These specifications are subject to change without notice.

Usage Features:

• Air Source Requirements: The tool requires clean, dry, regulated compressed air. Air compressors used must comply with European Community Safety Directives and supply the correct CFM output. Normal working pressure is 90 psi. The air compressor tank should be drained daily, and the air lines should be free of condensation. The tool's air inlet screen filter should be cleaned weekly. A 3/8" (inner diameter) air hose is recommended for optimal performance. Long air hoses (over 8 meters) may require higher compressor output pressure to maintain the required working pressure at the tool. Proper hoses and fittings are essential, and quick-change couplings should not be connected directly to the tool due to vibration.
• Assembly: Before use, the air inlet protective cap must be removed, and a male plug (with thread sealant tape) must be mounted and tightened into the air inlet. 2-3 drops of air tool oil should be placed into the male plug before each use. The correct impact socket (and extension bar, if needed) is then mounted onto the anvil. The air supply hose is connected to the male plug, and the working pressure is set at 90 psi for best performance.
• Operation: To install/tighten fasteners, the switch is turned forward, aligning the arrow with one of the three dots on the back housing, and the variable speed trigger is pressed. The anvil rotates clockwise. To remove/loosen fasteners, the switch is turned backward, aligning the arrow with the large dot, and the trigger is pressed. The anvil rotates counterclockwise. Users must ensure the correct torque is applied to fasteners to prevent stripping threads or breaking bolts.
• Safety Information: Users must read, understand, and follow all instructions and warnings. The tool should always be used in a clean, dry, well-ventilated area, free of combustible materials. Proper attire is required, avoiding loose clothing or jewelry. The work area must be well-lit and free of clutter. Eye and ear protectors are mandatory. Oxygen, carbon dioxide, or other bottled gases should never be used as a power source. The air source pressure must be adjusted within the rated range and never exceed 200 psi. The air supply hose should not be connected with a finger on the trigger. The tool should not be left unattended, and the air hose should be disconnected when not in use. The air supply hose must be kept away from heat, oil, and sharp edges and checked for wear/leaks before each use. The tool should only be used for its intended purpose and not be altered. Disconnect the tool from air supply before changing accessories, performing maintenance, or moving it. Do not use a defective, damaged, or abnormally operating tool. Avoid excessive force and continuous operation, as vibrations may be harmful to hands and arms. Always use impact sockets and finish tightening wheel nuts or engine parts with a torque wrench to the vehicle manufacturer's recommended torque. Avoid impacting a nut or bolt more than 8 times to prevent over-tightening. Secure the workpiece with clamps or devices if necessary, and wear a safety helmet for overhead work.

Maintenance Features:

• Lubrication: An in-line oiler is recommended for sustained operation and increased tool life. The oiler should be regularly checked and filled with air-tool oil. Proper adjustment is achieved by holding the throttle open for 30 seconds with a sheet of paper near the exhaust ports; a light stain of oil on the paper indicates proper setting. Excessive oil should be avoided.
• Storage: For extended storage, the tool should receive a generous amount of lubrication and be run for approximately 30 seconds to ensure even oil distribution. It should be stored in a clean, dry environment.
• Recommended Lubricants: Air-tool oil or any high-grade turbine oil containing moisture absorbent, rust inhibitors, metal wetting agents, and an EP (extreme pressure) additive.
• Cleaning: The tool should be cleaned with a cotton rag after each use.

PT M632 Specifications

General

Brand	PT
Model	M632
Category	Impact Driver
Language	English