# MWR Charging Cradle

## Charger

# Product Information

# General Information

WARNING

Risk of Property Damage or Severe Injury

Ensure that you read, understand and follow all instructions before operating the tool. Failure to follow all the instructions may result in electric shock, fire, property damage and/or severe bodily injury.

- Read all Safety Information delivered together with the different parts of the system.

- Read all Product Instructions for installation, operation and maintenance of the different parts of the system.

- Read all locally legislated safety regulations regarding the system and parts thereof.

- Save all Safety Information and instructions for future reference.

In this Section

- Safety Signal Words
- Warranty
- Website
- ServAid
- Country of Origin
- Dimensional Drawings

# Safety Signal Words

The safety signal words Danger, Warning, Caution, and Notice have the following meanings:

DANGER | DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING | WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION | CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE | NOTICE is used to address practices not related to personal injury.

# Warranty

- Product warranty will expire 12+1 months after dispatch from Atlas Copco's Distribution Center.

- Normal wear and tear on parts is not included within the warranty.

  - Normal wear and tear is that which requires a part change or other adjustment/overhaul during standard tools maintenance typical for that period (expressed in time, operation hours or otherwise).

- The product warranty relies on the correct use, maintenance, and repair of the tool and its component parts.

- Damage to parts that occurs as a result of inadequate maintenance or performed by parties other than Atlas Copco or their Certified Service Partners during the warranty period is not covered by the warranty.

- To avoid damage or destruction of tool parts, service the tool according to the recommended maintenance schedules and follow the correct instructions.

- Warranty repairs are only performed in Atlas Copco workshops or by Certified Service Partners.

Atlas Copco offers extended warranty and state of the art preventive maintenance through its ToolCover contracts. For further information contact your local Service representative.

For electrical motors:

- Warranty will only apply when the electric motor has not been opened.

# Website

Information concerning our Products, Accessories, Spare Parts and Published Matters can be found on the Atlas Copco website.

Please visit: www.atlascopco.com.

# ServAid

ServAid is a portal that is continuously updated and contains Technical Information, such as:

- Regulatory and Safety Information

- Technical Data

- Installation, Operation and Service Instructions

- Spare Parts Lists

- Accessories

- Dimensional Drawings

Please visit: https://servaid.atlascopco.com.

For further Technical Information, please contact your local Atlas Copco representative.

# Country of Origin

For the Country of Origin, please refer to the information on the product label.

# Dimensional Drawings

Dimensional Drawings can be found either in the Dimensional Drawings Archive, or on ServAid.

Please visit: http://webbox.atlascopco.com/webbox/dimdrw or https://servaid.atlascopco.com.

# Overview

# Applications

The MWR Charging Cradle is designed for charging and storing mechatronic wrenches of the families MWR-TA, MWR-S and MWR-T.
For MWR wrenches with a capacity of 50 Nm or higher, the Charging Cradle is equipped with adjustable support arms, which ensure the stability of the assembly and prevent the risk of damaging the cradle and the wrench.

# Main components and functions

A | Wrench support arm | B | Wrench housing
C | Battery contacts | D | Status LED
E | AC power connector

# Product data

Input power | 100-240 V ~ 50/60 Hz 0.18 A (max)
Output power | 2 V 750 mA 1.25 W (max)
Overvoltage category | II
Operating temperature | +5 to + 40 °C +41 to + 104 °F
Charging time | 140 minutes (max)

# Environmental conditions

Indoor use only |
Altitude | Up to 2000 m
Ambient temperature range | +5 to +40 °C (+41 to +104 °F)
Maximum relative humidity 80 % for temperatures up to 31 °C (88 °F) decreasing linearly to 50 % relative humidity at 40 °C (104 °F) |
Environmental class | II
Overvoltage category | II
IP Index | IP20

# Compatible battery

MWR Rechargeable battery (P/N 4027502101):

Rechargeable NiMH AAA battery 1.2 V, 1000 mAh.

WARNING

Never try to recharge non-rechargeable batteries! Non-rechargeable batteries may leak when charging. They can explode and cause risk of fire and injuries.

# Compatible tools

Model | Product number
--- | ---
MWR-25 S | 8439004400
MWR-50 S | 8439004401
MWR-85 S | 8439004402
MWR-200 S | 8439004403
MWR-300 S | 8439004404
MWR-25 T | 8439004410
MWR-50 T | 8439004411
MWR-85 T | 8439004412
MWR-200 T | 8439004413
MWR-300 T | 8439004414
MWR-25 TA | 8439004420
MWR-50 TA | 8439004421
MWR-85 TA | 8439004422
MWR-200 TA | 8439004423
MWR-300 TA | 8439004424

# Dimensions and weight

A [mm] | B [mm] | C [mm] | D [mm] | E [mm] | F [mm] | Weight [g] | Weight [lb]
--- | --- | --- | --- | --- | --- | --- | ---
150 | 165 | 100 | 65.9 | 65 | 110 | 1021 | 2.3

# Technical Product Data

Technical Product Data can be found on either ServAid, or the Atlas Copco website.

Please visit: https://servaid.atlascopco.com or www.atlascopco.com.

# Accessories

Model | P/N
--- | ---
Charging Cradle MWR-300 Support Arm | 4027 5026 29
Charging Cradle MWR Clips HD | 4027 5026 14

# Status LED behavior

Behavior | Color | Description
--- | --- | ---
Steady | Blue | MWR Charging Cradle is in stand-by mode (MWR out of the cradle)
Blinking with a 1 second interval | Green | MWR charging.
Steady | Green | MWR charge complete.
Steady | Red | Hardware error has occurred in MWR Charging Cradle.
Alternating | Red and blue | Conductance error has occurred while charging the MWR.

For more information about the MWR wrench's LEDs behavior while charging in the Cradle, refer to Charging the MWR with the MWR Charging Cradle.

# Installation

# Installation Instructions

# Installing the wrench support arm

For MWR models with a capacity of 50, 85, 200 and 300 Nm, it is required to install and adjust the dedicated support arm to avoid damaging the wrench and the cradle during the charging procedure.

## Support arm for wrenches with 50, 85 and 200 Nm capacities

1. If the MWR charging cradle is connected to the AC power, unplug the cable.

2. On the bottom of the support arm, identify which one of the screw holes matches the capacity of the wrench to charge.

   The matching capacities are engraved next to their respective holes.

3. On the bottom of the MWR Charging Cradle, align the screw hole on the support arm that matches the wrench capacity with the hole on the cradle closer to its indented edge.

4. Tighten the screw(s) until the support arm is properly secured to the Cradle.

## Support arm for wrenches with 300 Nm capacity

1. If the MWR Charging Cradle is connected to the AC power, unplug the cable.

2. On the bottom of the MWR Charging Cradle, install the support arm dedicated to 300 Nm wrenches by tightening the two screws.

# Operation

# Ergonomic Guidelines

Consider your workstation as you read through this list of general ergonomic guidelines to identify areas for improvement in posture, component placement, or work environment.

- Take frequent breaks and change work positions frequently.

- Adapt the workstation area to your needs and the work task.

  - Adjust for a convenient reach range by determining where parts and tools need to be located to avoid static load.

  - Use workstation equipment such as tables and chairs appropriate for the work task.

- Avoid work positions above shoulder level or with static holding during assembly operations.

  - When working above shoulder level, reduce the load on the static muscles by lowering the weight of the tool, using for example torque arms, hose reels or weight balancers. You can also reduce the load on the static muscles by holding the tool close to the body.

  - Take frequent breaks.

  - Avoid extreme arm or wrist postures, particularly during operations requiring a degree of force.

- Adjust for a convenient field of vision that requires minimal eye and head movements.

- Use appropriate lighting for the work task.

- Select the appropriate tool for the work task.

- In noisy environments, use ear protection equipment.

- Use high-quality inserted tools and consumables to minimize exposure to excessive levels of vibration.

- Minimize exposure to reaction forces.

  - When cutting:

    A cut-off wheel can get stuck if the cut-off wheel is bent or not guided properly. Use the correct flange for the cut-off wheel and avoid bending the cut-off wheel during operation.

  - When drilling:

    The drill might stall when the drill bit breaks through. Use support handles if the stall torque is high. The safety standard ISO11148 part 3 recommends using a device to absorb a reaction torque above 10 Nm for pistol grip tools and 4 Nm for straight tools.

  - When using direct-driven screwdrivers or nutrunners:

    Reaction forces depend on the tool settings and joint characteristics. Strength and posture determine the amount of reaction force that an operator can tolerate. Adapt the torque setting to the operator's strength and posture and use a torque arm or reaction bar if the torque is too high.

- In dusty environments, use a dust extraction system or wear a mouth protection mask.

# Operating Instructions

# Charging the MWR with the MWR Charging Cradle

Install the MWR Charging Cradle close to the AC Power. If the charging cradle is malfunctioning, immediately disconnect the plug from the AC power.

1. Connect the MWR Charging Cradle to the AC power.

2. Insert the MWR wrench into the MWR Charging Cradle.

   Adjust the support arm according to the capacity of the MWR model.

   When the MWR is placed into the MWR Charging Cradle, the red, yellow and green LEDs on the sides of the wrench start blinking: the wrench is setting the internal offset (zero point) for the torque transducer, and running a quick self-test.
   Once the internal offset is complete, the charging starts and the wrench yellow LED is steady on, while the Status LED of the MWR Charging Cradle is blinking green

   When the MWR charge is complete, the Status LED of the MWR Charging Cradle is steady green.

For more information on the behavior of the MWR Charging Cradle Status LED, refer to Status LED behavior.

For more information on the behavior of the MWR wrenches LEDs, refer to the MWR Product Instructions specific to the model in use.

# Service

# Maintenance Instructions

# Service Recommendations

Preventive maintenance is recommended at regular intervals. See the detailed information on preventive maintenance. If the product is not working properly, take it out of service and inspect it.

If no detailed information about preventive maintenance is included, follow these general guidelines:

- Clean appropriate parts accurately

- Replace any defective or worn parts

# Recycling

# Environmental Regulations

When a product has served its purpose it has to be recycled properly. Dismantle the product and recycle the components in accordance with local legislation.

Batteries shall be taken care of by your national battery recovery organization.

# Recycling instructions

Position | Part | Recycle as
--- | --- | ---
1 | Housing cradle | Aluminum
2 | Housing wrench | Plastic
3 | Support contacts battery | Plastic
4 | PCB | WEEE
5 | Battery contacts | Steel
6 | Magnet | Steel
7 | Power connector | WEEE
8 | Base extension | Plastic
9 | Base extension 300 | Plastic
10 | Puffer | Rubber
11 | Clips HD | Steel
12 | Screws | Steel
13 | Guide light | Plastic