# QMC41-100-HM4

## Fixtured electric motor unit

# 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
- ServAid
- Safety Data Sheets MSDS/SDS
- 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 months after the product is first taken into use, but will in any case expire at the latest 13 months after delivery.

- 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.

# 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.

# Safety Data Sheets MSDS/SDS

The Safety Data Sheets describe the chemical products sold by Atlas Copco.

Please consult the Atlas Copco website for more information www.atlascopco.com/sds.

# 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 MicroTorque screw fastening systems are ultra low-torque applications.

# Normal Environmental Conditions

This product is designed to be safe under the following conditions:

- Indoor use

- Altitude up to 2 000 m

- Operating temperature +5 °C / +41 °F to +40 °C / +104 °F

- Storage temperature -25 °C / -13 °F to +60 °C / +140 °F

- Maximum relative humidity 80 % for temperatures up to 31 °C / 89 °F decreasing linearly to 50 % relative humidity at 40 °C / 104 °F

- Mains supply voltage fluctuations up to ±10 % of the nominal voltage

- Transient overvoltages up to the levels of overvoltage category II

- Temporary overvoltages occurring on the mains supply

- Pollution degree 2

- Ingress protection rating: IP20

# 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

# Optional accessories

Tool cable 2.0 m | 8432 0835 02
Tool cable 3.5 m | 8432 0835 03

# Bit run out test

Bit run out is measured with the tool securely fastened in a test rig and with the tool running at no load with a rotation speed of 200 rpm. Measuring point is at 44 mm (length of a standard bit) out on a special bit 4216 2194 00. Bit run out limit is 0.15 mm.

# Bit grounding test

Bit grounding is measured by the ground circuit stability and resistance with the tool running at no load with a rotation speed of 200 rpm. Resistance is measured between the special bit 4216 2194 00 and the outside of the tool connector and the resistance limit is 20 Ω.

# Installation

# Installation Instructions

# Installing the tool

For details, please refer to the dimensional drawings.

# Mechanical installation

Attach the tool to the fixture in one of the following ways:

A: Using the threads at the front part, accessible under the thread protection ring.

B: Using the holes of the tool base.

Four holes are intended for screws and two holes are intended for guide pins.

# Electrical installation

Connect the tool to the drive using the supplied cable.

NOTICE

Make sure the cable is not bent more than a radious of 55 mm (2.2 in).

# 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

# Mount bit

1. Pull the chuck ring outwards

2. Insert the bit

3. Turn the bit, if not seated properly

# Service

# Preventing ESD Problems

The components inside the product and controller are sensitive to electrostatic discharge. To avoid future malfunction, make sure that service and maintenance is carried out in an ESD approved work environment. The figure below shows an example of an appropriate service work station.

# 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

# Preventive maintenance

Service should only be carried out by trained technician following provided service instructions and using original Atlas Copco spare parts.

The preventive maintenance intervals are based on the following definitions of use:

- Tools are tested at their maximum torque. Operating at a lower target torque results in longer service intervals and reduced maintenance frequency.

- The application is to assemble machine screws into metal threads. The typical run-down torque is below 15% of the target torque. Thread cutting or thread forming applications with high prevailing torque will reduce the service interval of the motor.

- The tightening angle ranges from 30° (hard joint) to 720° (soft joint). The tightening angle is measured between seating and target torque. A higher tightening angle will reduce the service interval of the motor.

- The highest possible speed for each torque level and joint characteristic is recommended. Lower speeds at high torque will reduce the service interval of the motor.

- The feed force is limited by the axial load limitations of the ball bearings to a maximum of 80 N. A low feed force ensures good tightening accuracy and increases the service interval for the front part. High load and/or high-speed impacts to the front part can damage the ball bearings.

- The vacuum pickup system will increase wear on the rubber sealings of the ball bearings, reducing the service interval for the front parts.

- Tightening problems such as overshooting, stuck bits, and bit slip can reduce the service interval of the tool. These problems can be minimized by proper programming, using limits, and dividing the programming into several steps with different limits.

  For more information about tightening strategies and troubleshooting, please refer to the configuration manual for ToolsTalk MT.

Interval | Action
--- | ---
1.500.000 cycles or 1 year | Calibrate the tool
1.500.000 cycles | Exchange bit grounding
3.000.000 cycles | Exchange front part Only applicable if the tool is used together with a vacuum adapter.
3.000.000 cycles | Exchange motor

# Instructions

Service equipment:

- Normal workshop equipment.

- Necessary special equipment as shown in the exploded views/tables.

- For testing a calibration rig is recommended.

- PC with internet connection to be able to download necessary keys.

# 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 information

| Part | Recycle as
1 | Front protection | Plastics, other, PA
2 | Cap nut | Metal, steel
3 | Front part | Metal, steel
4 | Grounding ring | Metal, copper/tin alloy
5 | Spring ring | Metal, steel
6 | Cap nut | Metal, steel
7 | Cover ring | Plastics, other, TPU
8 | Main board | Electronic
9 | Cap nut | Metal, steel
10 | Motor | Electronic
11 | Motor cover | Metal, aluminum
12 | Drive unit without motor | Recycle as steel
13 | Light electronics | Electronic
14 | Lens | Plastics, other, PC
15 | Light module housing | Metal, aluminum
16 | Reflector | Plastics, other, POM
17 | Part of light electronics | Electronic
18 | Cover plate | Metal, stainless steel
19 | Screws | Metal, stainless steel
20 | Housing frame | Metal, aluminum
21 | Screws | Metal, steel