Atlas Copco ETD STR61-70-13 Instruction sheet

ETD STR61-70-13
Printed Matter No. 9839 0180 01 Electric straight nutrunner
Publication Date 2020-03-04
Valid from Serial No. C0770001
Valid to Serial No. C2439999 Product Instructions
ETD STR61-70-13
(15-80 Nm)
8436626070
WARNING
Read all safety warnings and instructions
Failure to follow the safety warnings and instructions may result in
electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference

2© Atlas Copco Industrial Technique AB - 9839 0180 01
Table of Contents
Product information................................................................................................4
General information ..........................................................................................4
Symbols on the tool ...............................................................................4
Safety signal words ...............................................................................4
Warranty ................................................................................................5
ServAid ..................................................................................................5
Website..................................................................................................5
Safety Data Sheets MSDS/SDS............................................................5
Product safety video for nutrunners.......................................................5
Country of origin ....................................................................................6
Dimensional drawings ...........................................................................6
Overview...........................................................................................................6
The Tensor system................................................................................6
Technical data .......................................................................................6
RFID chip...............................................................................................6
Service overview...............................................................................................8
Service recommendations .....................................................................8
Installation ...............................................................................................................9
Installation requirements...................................................................................9
Tool display ...........................................................................................9
Connecting the tool................................................................................9
Grounding..............................................................................................9
Socket release function .........................................................................9
Installation instructions .....................................................................................9
Fitting of the tool cable ..........................................................................9
Installing accessories ............................................................................9
Mounting of swivelling suspension yoke..............................................12
Operation ...............................................................................................................16
Ergonomic guidelines .....................................................................................16
Operating instructions.....................................................................................16
Operating.............................................................................................16
Service ...................................................................................................................18
Preventing ESD problems ..............................................................................18
Maintenance instructions ................................................................................18
Overhaul ..............................................................................................18
Service recommendations ...................................................................18
Service instructions .............................................................................18
Lubrication instructions ...................................................................................19
Lubricating guide .................................................................................19
Lubrication ...........................................................................................19
Repair instructions ..........................................................................................19
Repair ..................................................................................................19

3
© Atlas Copco Industrial Technique AB - 9839 0180 01
Troubleshooting....................................................................................................20
If the tool becomes very hot............................................................................20
Power Focus 3000/4000.................................................................................20
Power Focus 600/6000...................................................................................20
Recycling ...............................................................................................................21
Environmental Regulations.............................................................................21
Recycling information .....................................................................................21

Product information EN ETD STR61-70-13
4© Atlas Copco Industrial Technique AB - 9839 0180 01
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.
Symbols on the tool
The symbols on the tool have the following meanings:
A Directive 2006/42/EC on Machinery specifies the essential health and safety requirements the prod-
uct has to meet in order for the manufacturer to affix the CE marking.
B When operating the device be sure to use caution.
C The symbol indicates that parts within the product must be handled in accordance with the WEEE
Directive.
D Read the instruction manual/booklet before starting work or before operating equipment or machin-
ery.
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 se-
rious 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.

ETD STR61-70-13 EN Product information
© Atlas Copco Industrial Technique AB - 9839 0180 01 5
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 ex-
pire 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 other-
wise).
■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 mainte-
nance 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 contains technical information for all hardware and software products such as:
- Safety Information including declarations, standards and directives
- Technical data
- Installation, Operation and Service Instructions
- Spare parts lists
- Accessories
ServAid is continuously updated and is available at:
https://servaid.atlascopco.com
For further information contact your local Atlas Copco representative.
Website
Log in to Atlas Copco: www.atlascopco.com.
You can find information concerning our products, accessories, spare parts and published matters on our
website.
Safety Data Sheets MSDS/SDS
The safety data sheets describes chemical products sold by Atlas Copco.
For more information, consult the website:
www.atlascopco.com/sds
Product safety video for nutrunners
Learn more about safety features on Atlas Copco nutrunners and what measures the operator has to take
for a safe operation. Click the link or scan the QR code below to view the video:
https://www.youtube.com/watch?v=FAh6yttvUpw

Product information EN ETD STR61-70-13
6© Atlas Copco Industrial Technique AB - 9839 0180 01
Country of origin
Please refer to the information on the product label.
Dimensional drawings
For information about the dimensions of a product, see the Dimensional drawings archive:
http://webbox.atlascopco.com/webbox/dimdrw
Overview
The Tensor system
The Tensor system consists of a range of tightening tools powered by brushless electric motors and differ-
ent drive units.
Motors are available in different sizes. All tools are protected from overheating of the motor. Electrical pro-
tection system is based on an earth fault circuit brake, Earth Fault Protector (EFP). The EFP senses small
current leakage (>30mA) and if leakage occurs, the drive is switched off (30ms). Changing, interfering or
tampering with the protection system voids all warranty and obligations from Atlas Copco. Trouble-shoot-
ing and re-start of the system may only be carried out by an authorized person. Check the function of the
EFP on a regular basis by pressing the trip-button. The EFP should switch off accordingly.
Technical data
Ordering No 8436626070
Model ETD STR61-70-13
Model type Straight
Distance center to side 26.5 mm
Speed 560 r/min
Length 491 mm
Torque range 15–80 Nm
Torque range 12–58 ft lb
Square drive 1/2 in
Weight 2.3 kg
Weight 5.1 lb
Height - mm
Motor power 1500 W
Motor voltage 200 V
Motor voltage type 3 a.c.
RFID chip
The tool has an embedded RFID chip which stores information about the product. The chip is located on
the motor of the tool. With an RFID reader it is possible to read and write information to the chip.

ETD STR61-70-13 EN Product information
© Atlas Copco Industrial Technique AB - 9839 0180 01 7
EPC memory
Product number, generation letter and serial number of the tool are stored in the EPC memory of the RFID
chip. The information is presented as a 20-character-long string.
Example
String stored in EPC memory: 84366130150670730145
The string reserves three characters for the generation letter, which is presented in ASCII format. As the
ASCII codes of the generation letters only use two characters, a “0” is always added in front of the ASCII
code.
The table below shows the generation letters with corresponding ASCII codes.
Generation
Letter
ASCII
Code
Generation
Letter
ASCII
Code
A65 N78
B66 O79
C67 P80
D68 Q81
E69 R82
F70 S83
G71 T84
H72 U85
I73 V86
J74 W87
K75 X88
L76 Y89
M77 Z90
The EPC memory is writable which enables the chip information to be reprogrammed in cases where the
motor from one tool is to be reused in another tool.

Product information EN ETD STR61-70-13
8© Atlas Copco Industrial Technique AB - 9839 0180 01
User memory
Apart from the tool information in the EPC memory, the RFID chip also contains a 512-bit user memory,
available for the customer to add any additional information.
Service overview
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

ETD STR61-70-13 EN Installation
© Atlas Copco Industrial Technique AB - 9839 0180 01 9
Installation
Installation requirements
Tool display
The tool display is turned on from the controller.
On Power Focus 4000:
■Push the Prog button
■Use the navigation buttons to follow the path > Tool > Configuration > Accessory bus > ST bus >
Mode
Connecting the tool
The tool should, via its correct Power Focus drive unit, be connected to the mains, 230V/50Hz alterna-
tively 115V/ 60Hz, single phase. See instructions for your Power Focus drive unit.
Grounding
If the tool is mounted in a handheld or hand guided fixture, the fixture should be connected to the drive us-
ing a separate 2.5mm2 grounding cable.
Socket release function
It is recommended to use the socket release function on all the ETP ST101 tools. When the function is en-
abled, the socket rotates backwards 3° after a completed tightening. The aim is to reduce tension on the
reaction bar and to make it easier to remove the tool.
The socket release function is turned on from the controller.
On Power Focus 4000:
■Push the Prog button
■Use the navigation buttons to follow the path > Pset > Programming+ > Options > Socket release >
Mode On
Installation instructions
Fitting of the tool cable
■Make sure that the tool cable is of correct type.
■Align the cable connector using the two asymmetrically positioned heads on the connector to fit in the
slots in the tool handle.
■Tighten the lock nut.
■Make sure that the connection is correct by pulling, pushing and turning the cable connector (there
should be no movement).
The tool has a built in electronic memory chip that will transmit the torque transducer calibration value
and angle pulses to the POWER FOCUS/drive unit. Any changes made of these values in the
POWER FOCUS while the tool is connected will be stored in the tool memory.
Installing accessories
Disassemble of the tool and/or accessorie must only be performed by qualified maintenance personell.

Installation EN ETD STR61-70-13
10 © Atlas Copco Industrial Technique AB - 9839 0180 01
This device emits CDRH/IEC Cl ass 2 laser and IEC Class 1M light. Do not stare into the beam.
Make sure the tool is disconnected from the cable before disassembling.
Required tools:
■Adjustable spanner
■Screwdriver
1. Put the front part in a clamping jaw (choose a suitable size) and fasten the clamping jaw in a vise.
2. Loosen the front cap nut using an adjustable spanner. Remove the tool from the vise.
3. Pull out the angle gear carefully from the tool.
4. Remove the following parts from the angle gear housing:
1. the lock ring (keep for later use)
2. the sealing washer (to be discarded)
3. the front cap nut (to be discarded)
5. Mount the following parts on the angle gear housing:
1. new applicable front cap nut. Apply a thin layer of grease on the inside of the cap nut.
2. new sealing washer
3. lock ring
6. Replace the O-ring on the motor housing with an O-ring with the same diameter but thicker. Apply a
thin layer of grease on the O-ring and on the lower section of the motor housing.
7. Place the tool into the half-ring with two pins on the inside. When the half-ring is placed in correct po-
sition, the pins will fit into the slots of the motor housing and prevent the half-ring from turning.
8. Connect the flex cable to the bus port marked 1.
9. Connect the flex cable on the upper half-ring to the bus port marked 2 and put together the two half-
rings.
10. Place an O-ring in the slot at the front of the half-rings. Apply a thin layer of grease on the O-ring.
11. Tighten the two half-rings with 4 screws using a screwdriver.
Make sure the sealing on the end of the half-rings seals tightly.
12. Pull out the planetary gear from the gear housing. Push down the planetary gear fully on the shaft.
Make sure the gear wheel is placed in correct position.
Put the gear back in position. Apply a thin layer of grease on the sealing washer.
13. Put the front part in the clamping jaw and fasten the clamping jaw in the vise.
14. Tighten the front cap nut using adjustable spanners.

ETD STR61-70-13 EN Installation
© Atlas Copco Industrial Technique AB - 9839 0180 01 11

Installation EN ETD STR61-70-13
12 © Atlas Copco Industrial Technique AB - 9839 0180 01
Mounting of swivelling suspension yoke
Required tools and material
■Assembly/disassembly tool 4080 1406 80
■Vise
■Circlip pliers
Tools up to 50 Nm
1. Hold the tool using a vise and assembly/disassembly tool.
2. Attach the rubber cover onto the motor cover next to the assembly/disassembly tool.
3. Attach the clamp rings on the rubber cover.
NOTICE Make sure the clamp rings are oriented with the flange according to the picture.
4. Attach the yoke ring to the tool by pushing it onto the clamp rings.
NOTICE Make sure the yoke is pointing to the front end of the tool.
5. Secure the yoke ring with a circlip in the slot of the clamp rings.

ETD STR61-70-13 EN Installation
© Atlas Copco Industrial Technique AB - 9839 0180 01 13
Tools from 50 Nm
1. Thread the circlip and the yoke ring onto the tool.
2. Attach the rubber cover onto the motor cover of the tool.
3. Attach the clamp rings on the rubber cover.
NOTICE Make sure the clamp rings are oriented with the flange according to the picture.
4. Hold the tool using a vise and assembly/disassembly tool against the rubber cover.
5. Push the yoke ring onto the clamp rings.
6. Secure the yoke ring with a circlip in the slot of the clamp rings.

Installation EN ETD STR61-70-13
14 © Atlas Copco Industrial Technique AB - 9839 0180 01
Tools with accessories
1. Thread the circlip and the yoke ring onto the tool.
2. Attach the rubber cover onto the motor cover.
3. Attach the clamp rings on the rubber cover.
NOTICE Make sure the clamp rings are oriented with the flange according to the picture.
4. Hold the tool using a vise and assembly/disassembly tool against the rubber cover.
5. Push the yoke ring onto the clamp rings.
6. Secure the yoke ring with a circlip in the slot of the clamp rings.

ETD STR61-70-13 EN Installation
© Atlas Copco Industrial Technique AB - 9839 0180 01 15
Tools with scanner accessory
1. Attach the rubber cover on the motor cover of the tool.
2. Attach the clamp rings on the rubber cover.
NOTICE Make sure the clamp rings are oriented with the flange facing the scanner.
3. Attach the yoke ring to the tool by pushing it onto the clamp rings.
NOTICE Make sure the rubber cover and the clamp rings are aligned.
4. Secure the yoke ring with a circlip in the slot of the clamp rings.

Operation EN ETD STR61-70-13
16 © Atlas Copco Industrial Technique AB - 9839 0180 01
Operation
Ergonomic guidelines
Consider your workstation as you read through this list of general ergonomic guidelines and see if you can
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 convenient reach range by determining where parts or tools should 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 reducing 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.
■Make sure to take frequent breaks.
■Avoid extreme arm or wrist postures, particularly for operations requiring a degree of force.
■Adjust for convenient field of vision by minimizing movement of the eyes and head during the work
task.
■Use the appropriate lighting for the work task.
■Select the appropriate tool for the work task.
■Use ear protection equipment in noisy environments.
■Use high-quality inserted tools or 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 wheel is either bent or if it is not guided properly. Make sure to
use the correct flanges for cut-off wheels and avoid bending the wheel during cut-off operation.
■When drilling:
The drill might stall when the drill bit breaks through. Makes sure you use support handles if the
stall torque is too high. The safety standard ISO11148 part 3 recommends using something to ab-
sorb the reaction torque above 10 Nm for pistol grip tools and 4 Nm for straight tools.
■When using direct-driven screw or nutrunners:
Reaction forces depend on tool setting and joint characteristics. The ability to bear reaction forces
depends on the operator’s strength and posture. 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.
■Use dust extraction system or mouth protection mask in dusty environments.
Operating instructions
Operating
Make sure that the tool is in correct working order and that the controller is correctly programmed to avoid
unexpected behaviour from the tool, which may result in operator injury.
Check that the tool is in the correct running direction by looking at the function light situated above the tool
handle, by turning the reverse ring (only for ETV/ETD DS or by turning the arm on the trigger knob (only
for ETP DS).
The soft-start function facilitates entering the screw head and thread.
The duration of the soft start is adjustable, see the manual for the drive unit.
The tool is equipped with signal lights,
■Green = OK tightening

ETD STR61-70-13 EN Operation
© Atlas Copco Industrial Technique AB - 9839 0180 01 17
■Yellow = Warning – low torque (not for ES)
■Red = Warning – high torque
■Orange = Function indicator (only for SL and DL)
■Blue = Function indicator (only for SL)

Service EN ETD STR61-70-13
18 © Atlas Copco Industrial Technique AB - 9839 0180 01
Service
Preventing ESD problems
The components inside the tool and controller are sensitive to electrostatic discharge. To avoid future mal-
function, 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
Overhaul
Service must only be carried out by qualified personnel who have access to the Service instruction and/or
have been trained for service on Tensor tools.
The electric motor is a sealed unit and may under no circumstances be opened by anyone else than
Atlas Copco Industrial Technique AB!
If you decide that the electric motor is defect or in need of service, return the complete motor unit to Atlas
Copco Industrial Technique for replacement.
Motors which have been opened by anyone else than Atlas Copco Industrial Technique will not be ser-
viced.
Overhaul and preventive maintenance is recommended at regular intervals once per year or after maxi-
mum 250.000 tightening depending on which occurs sooner. More frequent overhaul may be needed if the
machine is used in heavy-duty operations. If the machine not is working properly, it should immediately be
taken away for inspection.
When dismantling the tool always use the specially designed service tool 4080 0848 80, (two service
tools are required).
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
Service instructions
Overhaul and preventive maintenance is recommended at regular intervals once per year or after maxi-
mum 250.000 tightening depending on which occurs sooner. More frequent overhaul may be needed if
used at high torque, high cycle rate or long tightening times. If the machine is not working properly, it
should immediately be taken away for inspection.
At the overhauls, all parts should be cleaned accurately and defective or worn parts (i.e. O-rings) should
be replaced.

ETD STR61-70-13 EN Service
© Atlas Copco Industrial Technique AB - 9839 0180 01 19
Lubrication instructions
Lubricating guide
Brand Cable nut Gears
Molycote BR2 Plus
CRC Litium grease No. 3020
Brand Angle gears General purpose
Molycote Longterm 2 plus
Almagard LE 3751
Lubrication
Planetary gears, needle bearings and ball bearings must be lubricated with soft grease containing molyb-
denumdisulphide at the regular overhaul of the tool.
Repair instructions
Repair
Repair must only be carried out by qualified authorised personnel. For further information contact your lo-
cal Atlas Copco sales representative.

Troubleshooting EN ETD STR61-70-13
20 © Atlas Copco Industrial Technique AB - 9839 0180 01
Troubleshooting
If the tool becomes very hot
With proper adjustment the tool can handle any normal line jobs that an operator sustains. What can
cause overheating are combinations of some factors: torque above rated, too low speed, too long ramp
time (motor has to give high torque for a long time), very high prevailing torque, very soft joints, short cycle
time. To correct, look over speed, ramp time, tightening strategy. One stage and Ergoramp are most heat
conserving when applicable. Please refer to the User Guide of your POWER FOCUS. If the above correc-
tions are not enough, choose a tool of the next higher capacity.
Power Focus 3000/4000
Is the POWER FOCUS switched on and in RUN mode? Check that the correct POWER FOCUS is used
(ST31/ST32/ST61/STR31/STR61-Tensor3-7, ST81-Tensor8-9). Check the fuses for the drive part. Check
Drive parameters, refer to the User Guide of the POWER FOCUS/ drive unit. Check the earth fault circuit
breaker on the backside of the drive. Should it have tripped, make sure to find the primary fault before re-
suming operation. Check that the wiring on the remote start connector is correct. For further information
see 9836 2258.
Power Focus 600/6000
Is the unit switched on? Check the earth fault circuit breaker behind the front door. Should it have tripped,
make sure to find the primary fault before resuming operation. Check that the wiring on the remote start
connector is correct. For further information see 9836 4954/9836 7446.