Mandrel  is  broken  or 
damaged. Nut is broken 
or damaged. 
Mandrel lifespan is over. 
In stroke control mode, nut is fastened twice 
Do  not  operate  with  nut  that  been  fasten 
once. 
Fastened nut stroke and force value are over 
than setting. 
Set the stroke or force to appropriate value. 
Use force reverse to release nut. If mandrel is 
damaged change to new. 
Nut is fastened in incline position.   
Operate  by  correct  way.  If  mandrel  is 
damaged change to new. 
Not  enough  fastening 
stroke. 
Incorrect setting value of stroke or force 
Resetting stroke or force appropriate value. 
Tool control part is broken. 
Reset to factory mode. If not solve, contact a 
local service center. 
Incorrect setting value of stroke or force 
Resetting stroke or force appropriate value. 
Tool control part is broken. 
Reset to factory mode. If not solve, contact a 
local service center. 
Appropriate  stroke 
cannot be adjusted. 
Incorrect setting value of stroke or force 
If stroke and force mode is  ON, switch  OFF 
force mode, and try again. If the this operate 
correctly, force setting is not appropriate. If 
cannot adjust, contact a local service center. 
Force mode only stroke is no stable compare 
to stroke mode. 
At  full  charge,  the 
number  of  nuts 
fastened is too low than 
firstly used. 
Nut tools components. Ball screw and thrust 
bearing are damaged. 
Contact a local service center. 
 
TROUBLESHOOTING (Touch Screen) 
 
WARNING: Read touch screen manual to further understand the troubleshooting of 
smart screen. 
1. Battery is not fully attached. 
Remove battery and re-insert. Reset tool to 
home. 
2. Battery is not fully charged. 
3. Battery is malfunction. 
4. Trigger module malfunction. 
Contact a local service centre. 
Screen  freezes  at 
Stanley  Engineered 
Fastening Logo 
 
Remove battery  and  reinsert. Press trigger 
to turn ON. 
2. Smart screen malfunction. 
Contact a local service centre. 
3. Trigger module malfunction. 
Contact a local service centre. 
4. Setting data are broken. 
Restore to factory setting. 
Tool  do  not  function 
when  mandrel  was 
push 
1. Screen is not home screen (Counter screen). 
Get  screen  to  home  scrren.  Touch  “Back 
home” icon to be back home. 
2. Screen malfunction, freezing or all white . 
Remove battery  and  reinsert.  Press trigger 
to turn ON. Or set the tool to default. If not 
solve, contact a local service centre. 
3. Alarm message is shown with beep sound. 
Reset alarm refering to the related pages. 
4. Setting data are broken. 
Restore to factory setting. 
5. Radio communication error. 
Restore  to  factory  setting.  If  not  slove, 
contact local service centre. 
6. If tool is already operating 
Continue with fastening or enforced spin off