Chicago Pneumatic CP8849

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Summary

Optimum User Focused Performances

Four Settings in Forward

Details the various torque and speed settings for forward operation of the impact wrench.

Applications and Work environments

Lists suitable applications for the impact wrenches, including tire changing and mechanics.

Product Kits and Accessories

Available Kits

Details the contents of the CP8849 and CP8849-2 tool kits.

Accessory Selection

Lists available accessories including batteries, chargers, gloves, and sockets.

Safety Information Overview

General Warning

Provides critical warnings to reduce the risk of injury, fire, and product damage.

Technical Data and Specifications

Tool Data

Presents detailed technical specifications for CP8849 and CP8849-2 models.

Noise and Vibration Levels

Details sound pressure, sound power, and vibration emission measurements.

Declarations of Conformity

Includes EU Declaration of Conformity and harmonized standards applied.

Tool Operation and Maintenance

Untightening Procedure

Explains how to use the impact wrench in reverse mode for loosening fasteners.

Tightening Procedure

Guides users on forward mode operation, including shut-off and power settings.

Battery Care and Management

Provides instructions on battery charging, storage, and optimal usage for longevity.

Maintenance and Safety Guidelines

Outlines essential maintenance tasks and safety precautions for tool care.

General Power Tool Safety

Work Area and Personal Safety

Covers safety precautions for the work environment and personal protection.

Electrical Safety Precautions

Details essential safety measures related to electrical hazards and cord usage.

Power Tool Use and Care

Provides guidance on the safe and correct operation and maintenance of power tools.

Summary

Optimum User Focused Performances

Four Settings in Forward

Details the various torque and speed settings for forward operation of the impact wrench.

Applications and Work environments

Lists suitable applications for the impact wrenches, including tire changing and mechanics.

Product Kits and Accessories

Available Kits

Details the contents of the CP8849 and CP8849-2 tool kits.

Accessory Selection

Lists available accessories including batteries, chargers, gloves, and sockets.

Safety Information Overview

General Warning

Provides critical warnings to reduce the risk of injury, fire, and product damage.

Technical Data and Specifications

Tool Data

Presents detailed technical specifications for CP8849 and CP8849-2 models.

Noise and Vibration Levels

Details sound pressure, sound power, and vibration emission measurements.

Declarations of Conformity

Includes EU Declaration of Conformity and harmonized standards applied.

Tool Operation and Maintenance

Untightening Procedure

Explains how to use the impact wrench in reverse mode for loosening fasteners.

Tightening Procedure

Guides users on forward mode operation, including shut-off and power settings.

Battery Care and Management

Provides instructions on battery charging, storage, and optimal usage for longevity.

Maintenance and Safety Guidelines

Outlines essential maintenance tasks and safety precautions for tool care.

General Power Tool Safety

Work Area and Personal Safety

Covers safety precautions for the work environment and personal protection.

Electrical Safety Precautions

Details essential safety measures related to electrical hazards and cord usage.

Power Tool Use and Care

Provides guidance on the safe and correct operation and maintenance of power tools.

The CP8849 and CP8849-2 are cordless 1/2" impact wrenches designed for a variety of applications, particularly tire changing operations on light vehicles, general mechanics, bodyshop applications, and MRO (Maintenance, Repair, and Operations). These tools combine the expertise in air impact wrenches with the convenience and mobility of battery power, offering optimum user-focused performances.

Function Description:

The CP8849 series is primarily intended for installing and removing threaded fasteners in wood, metal, or plastic. It features controlled torque settings, making it ideal for tasks such as tightening wheels close to manufacturer-recommended torque without overtightening. The tool allows for quick and easy snugging of bolts without damaging studs, after which a torque wrench should be used to apply the manufacturer's specified torque. The impact wrench operates in both forward and reverse modes, with multiple power settings to suit different applications.

Important Technical Specifications:

The CP8849 and CP8849-2 models share many core specifications, with the primary difference being the anvil length.

Square Drive: 1/2 inch (13 mm)
Free Speed (RPM):
- Slow mode: 0-600 RPM
- Fast mode: 0-1200 RPM
- 50% mode: 0-1000 RPM
- 100% mode (reverse and forward): 0-1800 RPM
Max Torque (Reverse): 850 ft.lbs (1150 Nm)
Break-away Torque: 1400 ft.lbs (1900 Nm)
Working Torque: 50-740 ft.lbs (68-1000 Nm)
Blows per Minute: 2300 BPM
Battery Voltage: 20V
Weight (without battery): 7.90 lbs (3.59 kg) for CP8849, 8.05 lbs (3.65 kg) for CP8849-2
Weight (with battery): 6.08 lbs (2.76 kg) for both models (note: this seems to be a typo in the manual, as the weight with battery should be higher than without. The values provided are 6.08 lbs / 2.76 kg for both models, which is less than the bare tool weight. This should be clarified with the manufacturer.)
Dimensions (Bare Tool):
- CP8849 (Short Anvil): Length 10.0 in (255 mm), Height 8.85 in (225 mm), Width 3.46 in (85 mm)
- CP8849-2 (Long Anvil): Length 10.9 in (303 mm), Height 8.85 in (225 mm), Width 3.46 in (85 mm)
Ambient Operating Temperature: -18°C to 50°C
Ambient Storage Temperature: 0°C to 40°C
Recommended Ambient Charging Temperature: 10°C to 38°C
Vibration Value (a): 16.1 m/s²
Sound Pressure Level (Lp): 101.5 dB(A)
Sound Power Level (Lw): 112.5 dB(A)
Motor Type: Brushless motor for high durability and efficiency.

Usage Features:

4 Settings in Forward Mode:
- 2 Shut-off Positions:
  - Slow mode: Designed to approach without impacting, allowing for hand tightening around ≈ 3.7 ft.lbs (4-5 Nm).
  - Fast mode: For tightening wheels close to manufacturer recommended torque without overtightening, around ≈ 50 ft.lbs (70 Nm).
- 2 Other Forward Positions:
  - 50% of maximum torque: ≈ 425 ft.lbs (580 Nm).
  - 100% of maximum torque: ≈ 850+ ft.lbs (1150+ Nm).
1 Setting @ Full Power in Reverse: ≈ 850+ ft.lbs (1150+ Nm).
Convenience: Equipped with 4 front LED lights to illuminate dark work spaces.
High Resistance to Drop: Features 5 bumpers around the tool and 1 in front of the clutch housing to absorb impacts and enhance durability.
High Comfort: Soft thermoplastic rubber grip for improved user comfort during extended use.
Long Runtime & Efficiency: Compatible with Li-ion 4 Ah or 6 Ah batteries, featuring a fuel gauge to monitor battery charge. Rubber dampeners further absorb impacts and shocks.
Battery Overload Protection: The battery pack includes overload protection that automatically switches off the product under extreme stress to ensure long life.

Maintenance Features:

General Maintenance: Maintenance and repair work should be performed by qualified personnel using original spare parts. It is recommended to contact the manufacturer or an authorized dealer for service.
Safety First: Always ensure the machine is disconnected from the energy source to prevent accidental operation.
Regular Inspection: Disassemble and inspect the tool every three months if used daily. Replace damaged or worn parts as needed.
Tune-up Kit: A tune-up kit is recommended to minimize downtime.
Cleaning: Avoid contact with brake fluids, gasoline, petroleum-based products, penetrating oils, and other chemicals that can damage plastic parts. Use clean clothes to remove dirt, dust, oil, and grease. Do not use solvents for cleaning plastic parts.
Battery Care: Recharge battery packs before use if they haven't been used for some time. Avoid exposing batteries to temperatures above 50°C (122°F) to prevent reduced performance and overheating. Keep charger and battery pack contacts clean. Fully charge battery packs after use for optimum lifespan. Remove the battery pack from the charger once fully charged to prolong battery life.
Battery Tool Contacts: It is recommended to treat the battery tool contacts every 6 months with contact lubricant (e.g., Electrolube: ERCG53A35SL).

The CP8849 and CP8849-2 are supplied as kits that include the tool, two battery packs (4 Ah or 6 Ah), a 20V charger, a Chicago Pneumatic soft bag, and tool documentation (Conformity Certificate, Safety Warning, Operator's Manual, Exploded View, and Spare Part List). Various accessories, including different battery capacities, chargers for various regions (EU, US, AUS, UK, Korea), impact wrenches gloves, and a range of 1/2" impact sockets, are also available.