Ingersoll-Rand 7872-F, 7870-F-( ) Disassembly and Assembly of Tools, Motor Section, Head Section

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DISASSEMBLY AND ASSEMBLY OF TOOLS

Disconnect air supply from tool or shut off air supply and exhaust (drain) line of compressed air BEFORE performing maintenance or service to tool.

Before starting to disassemble or assemble this tool (any part or completely), be sure to read “Inspection,Maintenance and Instal- lation” section,

To minimize the possibility of parts damage and for convenience, the steps for disassembly or assembly listed on the following pages are recommended.

The basic sections and instructions for removing them from the tool are as follows:

MOTOR SECTION

Place head of tool in a suitable holding device, clamping on flats of head. Remove collet nut and collet insert. Insert a 5/32” hex type wrench thru collet body into end of rotor to secure rotor and un- thread and remove collet body from rotor. Remove lock nut (37253) and remove motor assembly from housing. See page B for complete disassembly of motor.

HEAD SECTION

Throttle components can be serviced without removing head sec- tion from tool. See page 9 and 10 for complete disassembly,

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Contents Series Short Grinders At the air inlet of the toolCedures Failureto Observethe Followingwarningscould Resultin Injury Operate at 90 p.s.i.g .2 bar/620 kPa maximum air pressureRoutine Lubrication Requirements AIR Supply RequirementsRecommended Lubricants Operation Safety Guide for Portable Grinder USEModel Identification DON’TMounting Instructions for Mounted Wheels Mandrel Overhang DimensionGrinding Wheel Mounting Instructions Mounting Instructions for Type 1 Grinding WheelsDisassembly and Assembly of Tools Motor SectionHead Section Typical Cross Section of Tool Disassembly AssemblyMotor Section Remove nut 36776 and valve components Head when assemblingHead Section From headDisassemblyassembly Erickson 3-PIECE Collet Assembly Accessories41753- 3-PIECE Collet Assembly LOCK-OFF Lever AssemblyTrouble Shooting Dimensional Data

7873-F, 7872-F, 7870-F-( ), 7871-F-( ) specifications

Ingersoll-Rand is recognized for its innovative and reliable products in the field of industrial equipment, particularly in the area of rotary compressors and pneumatic tools. Among their notable offerings are the 7871-F, 7870-F, 7872-F, and 7873-F impact wrenches, which are designed to meet the rigorous demands of various professionals.

The Ingersoll-Rand 7871-F-( ), 7870-F-( ), 7872-F, and 7873-F series are characterized by their lightweight design, combined with robust construction that ensures durability. This series of impact wrenches is specifically engineered for high performance and offers an excellent balance of torque and speed, making them suitable for a wide range of applications in automotive, construction, and industrial settings.

One of the main features of these wrenches is their powerful motor, which provides a high torque output, essential for demanding tasks such as lug nut removal and heavy-duty fastening. The tools are equipped with advanced impact mechanism technology, which enhances their efficiency and allows for an optimal power-to-weight ratio. Additionally, the user-friendly controls and ergonomically designed grips ensure maximum comfort during prolonged use.

The 7870-F and 7871-F-( ) models, in particular, boast an adjustable power regulator that allows users to select the optimal torque for different applications. This level of customization is crucial in allowing technicians to work with precision, thereby reducing the risk of damage to fasteners or workpieces. The 7872-F and 7873-F models, on the other hand, focus on features like a higher free speed and extended service intervals, making them ideal for professionals who need reliable tools without frequent maintenance.

All models in this series also showcase Ingersoll-Rand's commitment to technological advancement, incorporating features such as anti-vibration technology that minimizes user fatigue and contributes to better handling. Furthermore, their motors are designed to be energy-efficient, which aligns with modern environmental standards, making them an eco-friendly choice in the industry.

In summary, the Ingersoll-Rand 7871-F-( ), 7870-F-( ), 7872-F, and 7873-F impact wrenches epitomize reliability, performance, and innovation. With powerful motors, user-centric designs, and advanced features, these tools are not only built to last but also to enhance the efficiency of every job they’re used for. Whether for automotive repair or heavy machinery assembly, these impact wrenches stand out as top choices in the competitive market of pneumatic tools.
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