Bauer 2161CR-B - User Manual

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Summary

Safety Information

Owners Manual Introduction

General introduction to safety guidelines and manual content.

Warning Symbols and Definitions

Explains hazard alert symbols used throughout the manual.

General Power Tool Safety

Broad safety precautions applicable to all power tools.

Specific Hazard Safety

Details electrical, personal, and battery safety precautions.

Operation-Specific Safety

Safety guidelines for grinding, sanding, and wire brushing.

Vibration and Grounding Safety

Covers vibration hazards and proper grounding procedures.

Setup and Preparation

Work Area Safety

Ensures a safe and conducive environment for operating the tool.

Power Tool Use and Care

Guidelines for operating the tool correctly and maintaining it.

Service and Battery Care

Instructions for tool service and proper handling of battery packs.

Symbology and Specifications

Explains tool symbols and lists technical specifications.

Components and Installation

Identifies tool parts and provides installation instructions.

Operation Instructions

Operational Safety Guidelines

Safety warnings specific to grinding, sanding, and wire brushing.

General Operation Precautions

Precautions and guidelines for using the tool effectively.

Accessory Installation and Use

Instructions for installing wheels and threaded accessories.

Task-Specific Instructions

Covers charging, work area setup, grinding, and wire brushing.

Sanding Procedures

Step-by-step guide for performing sanding tasks.

Maintenance and Servicing

General Maintenance Procedures

General procedures for tool maintenance and servicing.

Cleaning, Lubrication, and Guard Replacement

Details cleaning, lubrication, and wheel guard replacement.

Accessory Storage and Handling

Guidance on proper storage and handling of accessories.

Troubleshooting

Common Tool Problems and Solutions

Lists common problems, causes, and solutions for tool operation.

Parts and Diagram

Parts List

Detailed list of all tool components with descriptions and quantities.

Assembly Diagram

Visual representation of tool components and their assembly.

Warranty Information

Limited 90 Day Warranty

Details the product's warranty terms and conditions.

Summary

Safety Information

Owners Manual Introduction

General introduction to safety guidelines and manual content.

Warning Symbols and Definitions

Explains hazard alert symbols used throughout the manual.

General Power Tool Safety

Broad safety precautions applicable to all power tools.

Specific Hazard Safety

Details electrical, personal, and battery safety precautions.

Operation-Specific Safety

Safety guidelines for grinding, sanding, and wire brushing.

Vibration and Grounding Safety

Covers vibration hazards and proper grounding procedures.

Setup and Preparation

Work Area Safety

Ensures a safe and conducive environment for operating the tool.

Power Tool Use and Care

Guidelines for operating the tool correctly and maintaining it.

Service and Battery Care

Instructions for tool service and proper handling of battery packs.

Symbology and Specifications

Explains tool symbols and lists technical specifications.

Components and Installation

Identifies tool parts and provides installation instructions.

Operation Instructions

Operational Safety Guidelines

Safety warnings specific to grinding, sanding, and wire brushing.

General Operation Precautions

Precautions and guidelines for using the tool effectively.

Accessory Installation and Use

Instructions for installing wheels and threaded accessories.

Task-Specific Instructions

Covers charging, work area setup, grinding, and wire brushing.

Sanding Procedures

Step-by-step guide for performing sanding tasks.

Maintenance and Servicing

General Maintenance Procedures

General procedures for tool maintenance and servicing.

Cleaning, Lubrication, and Guard Replacement

Details cleaning, lubrication, and wheel guard replacement.

Accessory Storage and Handling

Guidance on proper storage and handling of accessories.

Troubleshooting

Common Tool Problems and Solutions

Lists common problems, causes, and solutions for tool operation.

Parts and Diagram

Parts List

Detailed list of all tool components with descriptions and quantities.

Assembly Diagram

Visual representation of tool components and their assembly.

Warranty Information

Limited 90 Day Warranty

Details the product's warranty terms and conditions.

The device described in the manual is a Bauer 20V 4-1/2" Brushless Slide Switch Angle Grinder, model 2161CR-B, with Hypermax Lithium technology. It is a battery-operated (cordless) power tool designed for grinding, sanding, and wire brushing operations.

Function Description:

The Bauer 20V 4-1/2" Brushless Slide Switch Angle Grinder is a versatile power tool intended for various material removal and finishing tasks. Its primary functions include:

Grinding: Used for abrasive material removal, shaping, and smoothing of metal or other hard surfaces. The manual specifically warns against grinding with the side of the wheel, as grinding wheels are intended for peripheral grinding, and side forces can cause them to shatter.
Sanding: Employed for surface preparation, smoothing, and finishing using sanding discs. The tool allows for uniform sanding patterns and recommends periodic checks for disc wear.
Wire Brushing: Utilized for cleaning, deburring, and surface conditioning with wire brushes. Users are cautioned about wire bristles being thrown by the brush and to avoid overstressing the wires.

The tool operates with a slide switch for power control, allowing for both momentary and locked-on operation. It is designed for two-handed use, with a main handle and an auxiliary side handle that can be positioned on either the left or right side for operator preference and maximum control. A wheel guard is included for safety, protecting the operator from broken wheel fragments and accidental contact. The brushless motor technology typically offers improved efficiency, longer run-time, and extended tool life compared to brushed motors.

Important Technical Specifications:

Battery Type: Bauer 20V Li-Ion Battery Pack (64816) (sold separately). The manual emphasizes using only specifically designated battery packs to avoid injury and fire.
Charger Type: Bauer 20V Li-Ion Charger (57006) (sold separately). Charging should be done according to the charger's instructions, on a fireproof surface, and with adequate ventilation.
No Load Speed: 10,500 revolutions per minute (RPM). This is the maximum speed the accessory should be rated for.
Spindle Thread: 5/8"-11 UNC. This specifies the threading for attaching accessories.
Capacity: 4-1/2" (115mm). This refers to the maximum diameter of grinding wheels, sanding discs, or wire brushes that can be used with the tool.
Accessory Requirements (Grinding Wheel): Must be rated to at least 10,500 RPM, no larger than 4-1/2" (115 mm) in diameter, fitted with a 5/8" round arbor hole, 0.3" thick or less, suitable for surface grinding (not edge grinding), dry, clean, and undamaged.
Accessory Requirements (Threaded Accessory): Must be rated to at least 10,500 RPM, no larger than 4-1/2" (115 mm) in diameter, fitted with a threaded opening of 5/8-11 UNC, and undamaged.

Usage Features:

Cordless Operation: Powered by a 20V Lithium-Ion battery pack, offering portability and freedom from power cords.
Slide Switch: Features a slide switch for easy on/off control, with a lock-on function for continuous operation. Users are instructed on how to engage and disengage the lock.
Spindle Lock Button: Allows for easy and secure accessory changes by preventing the spindle from rotating.
Adjustable Wheel Guard: The wheel guard can be rotated and locked into position to shield the operator during work, ensuring maximum safety. It should always be installed opposite the side handle.
Auxiliary Side Handle: Can be installed on either the left or right side of the grinder, providing enhanced control and comfort for different users and applications. The manual stresses that the tool should not be operated with one hand only or without the auxiliary handle properly installed.
Brushless Motor: Provides increased efficiency, longer motor life, and potentially more power and runtime compared to traditional brushed motors.
Workpiece and Work Area Setup: Emphasizes securing workpieces with clamps, ensuring a clean and well-lit work area free of hazards, and providing for sparks and debris.
Operating Angle: For grinding and wire brushing, the wheel should be applied to the work material at a 10°-15° angle, allowing the tool to operate at full speed. Lighter pressure is recommended if the tool bogs down.
Smooth Surface Creation: Achieved by keeping the tool moving uniformly over the work surface.

Maintenance Features:

Regular Inspection: Before each use, the tool should be inspected for general condition, including the battery pack (leaking, swollen, cracked), loose hardware, misalignment or binding of moving parts, cracked or broken parts, and any other condition affecting safe operation.
Cleaning: After use, external surfaces of the tool should be wiped with a clean cloth. Periodically, dust and grit should be blown out of the motor vents using dry compressed air, while wearing ANSI-approved safety goggles and NIOSH-approved breathing protection.
Wheel Guard Maintenance: The wheel guard should always be checked for damage before use and replaced if damaged. Instructions are provided for installing and repositioning the wheel guard.
Accessory Handling and Storage: Accessories should be handled carefully to prevent dropping or bumping. Damaged or dropped wheels must not be used. Accessories should be stored in a dry area, above freezing temperatures, and away from metal objects to prevent shorting of battery packs.
Battery Pack Care: Keep the battery pack dry, do not open, drop, short-circuit, puncture, incinerate, or expose to temperatures greater than 265°F. Inspect before every use and do not use or charge if damaged.
Troubleshooting Guide: The manual includes a troubleshooting section to address common issues like the tool not starting, operating slowly, decreased performance, excessive noise/rattling, overheating, or ineffective operation, along with possible causes and likely solutions. It advises disconnecting power supply before servicing.
Professional Service: Procedures not specifically explained in the manual must be performed only by a qualified technician. The manufacturer explicitly states that all repairs and parts replacements should be undertaken by certified and licensed technicians.