Panasonic Cordless Impact Wrench EYFPA1J, EYFPA1JR, EYFNA1C, EYFNA1CR, EYFNA1J, EYFNA1JR, EYFNA1P, EYFNA1PR Operating Instructions

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Insert the battery
1. Pull out the battery holder.
1 Push in on the fastener as indicated by the arrow.
2  Pull out the holder.
.  Insert  the  battery  and  push  the  holder 
back in.
NOTE:
If the tool does not respond to the wire-less  remote  control  even  when  the remote  control  is  operated  close  to 
the  tool,  the  battery  (CR0)  is  dead. 
Replace it with a fresh battery.The  included  battery  is  provided  for sample use and may not last as long...

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Tightening confirmation lamp
The tightening confirmation lamp can be used to  check  whether  the  torque  control  function was activated.
Tool statusLamp display
Tightening complete(with torque control function operation)
Green
(For approx.  
seconds)
•  Tightening not complete
•  Tightening complete 
with retightening within 1 second
Red
(For approx.  
seconds)
The automatic stop function has been activated.
Red
(For approx.  
minutes)
CAUTION:
When  the  tool...

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IndicatorBattery status
Fully charged
Approx. 40% or less remaining
Flashing
Flashing
Approx. 0% or less 
remaining (indicates need to recharge battery)The battery pack will need to be charged soon.
Flashing
No chargeThe battery pack needs to be charged.(The tool’s automatic power-off function will activate at this stage.) 
Automatic power­off function
The  automatic  power-off  function  is  designed to  prevent  a  loss  of  tightening  torque  due t o   r e d u c e d   b a t...

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• Use  figures  from  the  Tightening  Torque Chart  to  guide  your  selection  of  torque clutch setting. (See the following tighten-ing torque chart)
.  Press  the  OK  button  to  accept  the  select
-ed torque clutch setting. The  control  panel  will  stop  flashing  and light up.
CAUTION:
• You  must  press  the  OK  button  in  order 
for the selected setting to take effect.
•  Be  sure  to  verify  the  new  value  after 
changing the setting.
Tightening  Torque  Chart...

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before pressing the OK button and then pressing the OK button.Pressing  the  A  button  toggles  the  dis-play  between  the  snug  point  detection level  setting  value  and  the  number  of torque stages setting value.T h e   t o o l   s h i p s   w i t h   t h e   s n u g   p o i n t detection level set to “L1.”When  the  number  of  torque  stages  has been  set  as  shown  below,  the  snug point detection level cannot be switched 
from “L1” to “L.”
ModelNumber of...

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Buzzer setting
You can select from three buzzer modes.
1. Set  the  tool  to  setting  configuration  mode. 
(See page 13.)
.  Press the A button once.
The current setting value will be displayed.
3.  Press  the 
  and   buttons  to  set  the desired value.
DisplayFunction
b0No buzzer
b1Buzzer accompanying green indicator
bBuzzer accompanying red indicator
4.  Press  the  OK  button  to  accept  the  new 
setting.
NOTE:
The tool ships with the buzzer mode set to b0 by...

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Initializing all settings
Factory settings• Torque  clutch  setting:  “F”  (torque  con
-trol function off)
•  Snug point detection level → L1
•  Cross thread reduction function → R0
•  Rundown error detecting function → 0
•  Maintenance interval alarm function 
  → 0
•  Radio  signal  range  limitation  function 
→ C0
•  Buzzer setting → b0
•  LED light setting → d1
•  Speed control setting → P0
•  This  section  explains  how  to  revert  all  tool 
settings to their default values...

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Error Display
In the event of a tool or battery pack malfunction, the control panel will display an error message. Please  check  the  tool  or  battery  pack  as  described  in  the  following  chart  before  having  them serviced.
DisplayLikely causeCorrective action
Setting errorRe-initialize the tool using the remote control. (See page 17.)
The battery pack is too hot.Stop work and allow the battery pack to cool before resuming use of the tool.
The tool is too hot to...

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[Battery Pack]
For Appropriate Use of Bat­
tery Pack
[Fig.28]
• The  rechargeable  batteries  have  a  limited life.
• For optimum battery life, store the Li-ion bat-tery pack following use without charging it.
• When operating the battery pack, make sure the work place is well ventilated.
For safe use
• The  battery  pack  is  designed  to  be  installed by  proceeding  two  steps  for  safety.  Make sure  the  battery  pack  is  installed  properly  to the main unit before...

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VII. ACCESSORIES
Charger
EY0L
Battery pack for EYFPA1
EYFB60
Battery pack for EYFNA1
EYFB0
Remote control
EYFA31
Protector for tool EYFPA1
•  EYFA07-A (Blue)
•  EYFA07-Y (Yellow)
•  EYFA07-H (Gray)
•  EYFA07-G (Green) 
Protector for tool EYFNA1
• EYFA0-A (Blue)
•  EYFA0-Y (Yellow)
•  EYFA0-H (Gray)
•  EYFA0-G (Green) 
Protector for battery EYFB60
EYFA0-H
Protector for battery EYFB0
EYFA10-H
Assembly Qualifier
• EYFRZ01
•  EYFR0
Tool...