Panasonic Cordless Impact Wrench EYFPA1J, EYFPA1JR Operating Instructions

							
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• The  tightening  torque  value  and  preci-sion vary with factors such as the mate-rial  into  which  the  bolt  is  being  driven and  the  condition  of  the  socket  being used.  Adjust  the  torque  as  necessary for the work being performed. Bolt tight-ening  torque  varies  due  to  the  factors described below.1) Bolt
• Bolt  diameter:  Tightening  torque 
gener-ally increases with bolt diam-eter.
•  Torque  coefficient  (indicated  by  the 
bolt  manufacturer),  grade,  length, etc.
) Other • Bit  and  socket  condition:  Material, 
amount of play, etc.
•  Use  of  a  universal  joint  or  socket 
adapter
•  User:  Manner  in  which  the  tool 
i s   a p p l i e d   t o   t h e   b o l t ,   s t r e n g t h with  which  the  tool  is  held,  man-ner  in  which  the  tool’s  switch  is depressed
•  Condition of object being tightened: 
Ma-terial, seating surface finish
(2)  The battery indication lamp
• Use  the  battery  indication  lamp  to  check how much power is left in the battery.
•  Battery  life  varies  slightly  with  ambient  tem-
perature  and  battery  characteristics.  The lamp  is  designed  to  provide  a  rough  indica-tion of remaining battery life.
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
• T h e   a u t o m a t i c   p o w e r - o f f   f u n c t i o n   i s designed  to  prevent  a  loss  of  tightening torque due to reduced battery voltage. Once it  has  been  activated,  the  tool  will  not  oper-ate  until  the  battery  pack  has  been  charged (or  re-placed  with  a  fresh  unit),  even  if  the trigger is depressed.
NOTE:
• All   bars on the battery indication lamp 
will  flash  when  the  automatic  power-off function is activated.
•  When the battery indication lamp begins 
flashing,  the  battery  pack  should  be charged  (or  replaced  with  a  fresh  unit) immediately.
•  Be  sure  to  fully  charge  the  battery  pack 
in  question  after  activation  of  the  auto-matic  power-off  function.  Failure  to  do so  may  prevent  the  automatic  power-off function from being properly deactivated.
(3)  LED light
See the illustration12
Pressing  the   button  toggles  the  LED  light on and off. The light illuminates with very low current, and it does not adversely affect the performance of the tool during use or its battery capacity.
CAUTION:
• The  built-in  LED  light  is  designed  to  illu-minate the small work area temporarily. 
• Do  not  use  it  as  a  substitute  for  a  regu-lar  flashlight,  since  it  does  not  have enough brightness.
Caution : DO NOT STARE INTO BEAM.
Use  of  controls  or  adjustments  or  performance of procedures other than those specified herein may result in hazardous radiation exposure.
Setting  the  tool  to  con­
figuration mode
1.  Turn off the control panel. 
•  If  the  control  panel  is  on,  remove  and 
then reinsert the battery pack.
.  Depress  the  switch  while  pushing  the 
 button  and  then  release  both  the   but-ton and the switch. 
						

							
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• After  all  the  LED  lamps  have  turned  off, the  control  panel  will  flash  and  change to configuration mode.
See the illustration13
NOTE:
• Tools  ship  from  the  factory  set  to  “F” 
mode (torque control function off).
•  The  control  panel  will  turn  off  if  the  tool 
is  not  operated  for  a  period  of    min
-utes. 
Configuring  the  torque  clutch 
setting
EYFA31
A
B
C D
(1)
()
Display
Battery indication lamp
1.  Press  the   and   buttons  to  select  the clutch  setting  that  is  appropriate  for  the work being performed.
3…28
1F30229
As the  button is pressedAs the  button is pressed
• “F” indicates that the torque control func-tion is off.
•  You  can  select  from  0  torque  clutch 
settings (1 to 0).
•  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  (for 
reference use)
The values illustrated on this chart were mea-sured  under  the  conditions  described  below and  are  provided  for  reference  purposes. Actual  tightening  torque  varies  with  ambient conditions (the particular bolt being tightened, hardware  being  used,  method  of  holding  the bolt in place, etc.).
Torque setting level
Tightening torque
EYFPA1J, EYFPA1JR 
						

							
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Setting  the  snug  point  detec­
tion level
EYFA31
A
B
C D
()
()(1)
1.  Press the A button.
•  The  snug  point  detection  level  setting 
value will be displayed.
Display
Battery indication lamp
.  Press the  and  buttons to set the best snug  point  detection  level  for  the  work you’re performing.
.  Press the OK button to accept the number 
of torque stages and the snug point detec-tion level.
•  The tool’s panel will flash and then light 
up continuously.
Snug  point  detection  level  guide­
lines
DisplaySnug point  detection levelApplications  (reference)
L1
Low (Use for work characterized by low loads before the snug point is reached.) • 
Tightening bolts in 
materials  that  are easily  cracked  or deformed, etc.
L
High (Use for work characterized by high loads before the snug point is reached.) • 
Ti g h t e n i n g   b o l t s 
in  materials  with misaligned  holes, etc.
•  Ti g h t e n i n g   s e l f -
t a p p i n g   s c r e w s , etc.
CAUTION:•  Set  the  snug  point  detection  level  from “L1.” Setting the snug point detection level from  “L2”  may  result  in  cracking  or  defor-mation of the target material.  •
  If  the  tool  stops  before  the  snug  point  at 
snug  point  detection  level  “L1,”  set  the snug point detection level to “L2.”
•   Changing  the  snug  point  detection  level 
from  “L1”  to  “L2”  may  increase  the  torque. Set  the  number  of  torque  stages  again after making this change.
•  The  setting  will  not  be  changed  until you press the OK button. 
• 
After changing the setting, be sure to check the new setting value. (See page 16.)
IMPORTANT INFORMATION: • You  can  set  the  snug  point  detection 
level and retightening prevention time at the  same  time  by  changing  the  retight-
ening  prevention  time  (See  page  1 ) 
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 “L2.”
ModelNumber of torque stages setting
EYFPA 1 to 0
Cross  thread  reduction  func­
tion
• The  tool  runs  in  reverse  approximately 
60°  before  running  forward  to  assist  in 
the  alignment  of  the  threads  to  help  reduce cross threads.
1.  Set  the  tool  to  setting  configuration  mode. 
(See page 11.)
.  Press the D button once.
•  The  cross  thread  reduction  function  set
-ting value will be displayed.
.  Press the 
 and  buttons to change the setting to ON or OFF.
DisplayFunction
R0OFF
R1ON
4.  Press  the  OK  button  to  accept  the  new 
setting. 
						

							
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Rundown error detecting func­
tion
• The rundown error detecting function causes a  red  indicator  to  flash  if  work  ends  more quickly  than  a  set  time,  for  example  due to  retightening  of  a  previously  tightened fastener or binding of the screw’s thread.
1.  Set  the  tool  to  setting  configuration  mode. 
(See page 11.)
.  Press the B button twice.
•  The  rundown  error  detecting  function 
setting value will be displayed.
.  Press the 
 and  buttons to change the time as desired.
OperationDisplaySeconds
0  seconds
10.1 seconds
0OFF
4.  Press  the  OK  button  to  accept  the  new 
setting.
•  When  the  cross  thread  reduction  func-tion  is  ON,  the  set  time  will  be  counted after  the  tool  operates  in  reverse  for 
approximately 60°.
Maintenance  interval  alarm 
function
• The  maintenance  interval  alarm  function locks  the  tool  so  that  it  can  no  longer  be operated  once  a  set  number  of  tightening operations has been performed. This function is  convenient  when  regularly  inspecting  tool performance, for example.
1.  Set  the  tool  to  setting  configuration  mode. (See page 11.)
.  Press the C button twice.
•  The setting value will be displayed.
.  Press  the 
  and   buttons  to  set  the desired value.
OperationDisplayNumber of tightening operations
 0,000
110,000
0OFF
4.  Press  the  OK  button  to  accept  the  new 
setting.
NOTE:
• When  the  remaining  number  of  tighten-ing  operations  is  10,000  or  less,  the display  will  alternate  between  “Setting” and  “1.”  When  the  remaining  number of  tightening  operations  reaches  0,  the value “0” will flash on the display. 
  To  delay  the  inspection  while  retaining 
the  current  tightening  operation  count value, select a new setting value that is greater than the current setting value.
  To reset the count to 0, initialize the tool 
(see page 1).
•  T h e   m a x i m u m   t i g h t e n i n g   o p e r a t i o n 
count  value  is  0,000.  Operations  in 
excess of 0,000 will not be counted.
Buzzer setting
•  You can select from three buzzer modes.
1.  Set  the  tool  to  setting  configuration  mode. 
(See page 11.)
.  Press the A button once.
•  The  current  setting  value  will  be  dis
-played.
.  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 default. 
R a d i o   s i g n a l   r a n g e   l i m i t a­
tion  function  on/off  setting 
(EYFPA1JR)
1.  Set the tool to configuration mode.
  (See page 11.)
.  Press the C button three times.
•  The control panel will begin flashing.
Display: The letter “F” flashes on and off.Battery  indication  lamp:  The  upper  and lower bars of the battery flash on and off. 
						

							
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Display
Battery indication lamp
. Press the C button again. 
•  Radio  signal  range  limitation  function 
on/off setting value will be displayed.
 
4.  Press  the   and   buttons  to  set  radio signal range limitation function on/off.
DisplayRadio signal range limitation function modeStatus
C0OFF
Tool  is  operational  in  the absence  of  communica-tions  with  the  Assembly Qualifier.
C1ON
Tool  is  not  operational in  the  absence  of  com-munications  with  the As-sembly Qualifier.
Factory settings
• Radio  signal  range  limitation  function 
setting: C0 (OFF)
NOTE:
• For more information about how to reg-ister  the  tool  and  Assembly  Qualifier, see  the  Assembly  Qualifier  instruction manual.
LED light setting
• You can select from two LED light modes.
1.  Set  the  tool  to  setting  configuration  mode. 
(See page 11.)
.  Press the B button once.
•  The  current  setting  value  will  be  dis
-played.
.  Press  the 
  and   buttons  to  set  the desired value.
DisplayFunction
d1Linked to LED light button
d
Linked to trigger switch operation 4. 
Press  the  OK  button  to  accept  the  new 
setting.
NOTE:
• The  tool  ships  with  the  LED  light  mode 
set to d1 by default.
Speed control function
• The  speed  (RPM)  can  be  changed  with  the amount of depression of the trigger.
1.  Set  the  tool  to  setting  configuration  mode. 
(See page 11.)
.  Press the B button three times.
•  The setting value will be displayed.
.  Press  the 
  and   buttons  to  set  the desired value.
OperationFunction
P0Speed control ON
P1Speed control OFF
4. 
Press the OK button to accept the new set-ting.
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 at the time of shipment from the factory. 
•  The error display will be turned off.
1.  Set  the  tool  to  the  setting  configuration 
mode.
  (See page 11.)
.  Press the C button.
•  The control panel will begin flashing.
Display: The letter “F” flashes on and off.Battery  indication  lamp:  The  upper  and lower bars of the battery flash on and off. 
						

							
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Display
Battery indication lamp
. Press  the  OK  button  to  accept  the  select-ed setting. 
•  The  control  panel  will  stop  flashing  and 
light up.
Checking tool settings
•  When  the  tool  stops,  the  current  setting 
value  will  be  displayed  for  approximately   
seconds.
•  The  setting  status  cannot  be  checked  while 
the  tool  panel  is  off.  Depress  the  trigger switch once to turn on the panel.
Checking  the  status  of  the 
torque  clutch  and  sung  point 
d e t e c t i o n   l e v e l   s e t t i n g   a n d 
Buzzer settings
1.  Press the A button.
•  The  torque  clutch  and  sung  point  detec-tion  level  setting  and  buzzer  setting  val-ues will be displayed (in that order).
  Example: If the torque clutch is set to  0 
and  sung  point  detection  level  setting  L1  and  the  buzzer  is  set  to  sound  at  the green indicator, “30” → “L1” → “b1”
Checking  the  status  of  the 
LED  light  and  rundown  error 
detecting  function  and  speed 
control function settings
1. Press the B button.
•  The  LED  light  and  tightening  time  and 
speed  control  setting  will  be  displayed (in that order).
  Example:  If  the  LED  light  mode  is  set  to 
L1  and  the  tightening  time  is  set  to  0 
and speed control is set to ON, 
  “d1” → “20” → P0
Checking the tool circuits and 
the  status  of  the  cross  thread 
reduction  function  and  auto 
downshift function settings
1.  Press the D button.
•  The tool circuits and cross thread reduc-tion function and auto downshift function settings will be displayed (in that order).
  Ex­ample: “H3” → “R1” → “10”
DisplayTool circuit
H
EYFPA1
NOTE: • When  other  tools  are  in  the  area  which 
a r e   n o t   s e t ,   t h e y   m a y   a c c i d e n t a l l y receive  a  signal  when  setting  the  tool by remote control.
  Set  the  tool  in  another  room  if  possible 
or keep a fair distance to avoid this situ-ation. 
						

							
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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 1.)
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 operate.Stop work and allow the tool to cool before resuming use.
The contacts that connect the battery pack and tool are dirty.Remove any dirt.
The battery pack has not been properly inserted into the tool.Insert the battery pack firmly into the tool.
The pins on either the tool or battery pack have worn down.Replace the battery pack.
Overload, Motor failure. etc.Stop using the tool immediately.
Tool circuit malfunction, failure, etc.
The tool is unable to communi-cate with the Assembly Quali-fier while the radio signal range limitation function is on.
• Ve r i f y   t h a t   t h e   t o o l   h a s   b e e n properly registered to the Assem-bly Qualifier.
• 
Verify  that  the  Assembly  Qualifi-er’s  group  setting  has  been  con-figured correctly.
• 
Improve  the  reception  state,  for example  by  moving  the  Assem-bly Qualifier closer to the tool.
NOTE: • When the tightened bolt is further tightened or loosened, the overload protection function (E) 
may be activated. 
						

							
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[Battery Pack]
For Appropriate Use of Bat­
tery Pack
Li­ion Battery Pack
• For optimum battery life, store the Li-ion bat-tery pack following use without charging it.
• When  charging  the  battery  pack,  confirm that  the  terminals  on  the  battery  charger are  free  of  foreign  substances  such  as  dust and  water  etc.  Clean  the  terminals  before charging the battery pack if any foreign sub-stances are found on the terminals.   The  life  of  the  battery  pack  terminals  may  be affected  by  foreign  substances  such  as  dust and water etc. during operation. • When  battery  pack  is  not  in  use,  keep  it away  from  other  metal  objects  like:  paper clips,  coins,  keys,  nails,  screws,  or  other s m a l l   m e t a l   o b j e c t s   t h a t   c a n   m a k e   a connection from one terminal to another.  Shorting  the  battery  terminals  together  may cause sparks, burns or a fire.
• When  operating  the  battery  pack,  make  sure the work place is well ventilated.
• When  the  battery  pack  is  removed  from  the main  body  of  the  tool,  replace  the  battery pack  cover  immediately  in  order  to  prevent dust  or  dirt  from  contaminating  the  battery terminals and causing a short circuit.
See the illustration14
Battery Pack Life
The rechargeable batteries have a limited life. If the operation time becomes extremely short after recharging, replace the battery pack with a new one.
Battery Recycling
ATTENTION:A  Li-ion  battery  that  is  recyclable  powers the product you have purchased.Please  call 1­800­8­BATTERY  for  infor-mation on how to recycle this battery.
[Battery Charger]
The  recommended  charg­
ing process
Read the operating manual for Panasonic bat-tery charger for the battery pack before charg-ing.Charge  the  battery  at  a  temperature  of  °C (41°F) to 40°C (104°F).The  battery  pack  cannot  be  charged  at  a temperature  of  less  than  °C  (41°F).  If  the temperature  of  the  battery  pack  is  less  than °C (41°F), keep the battery pack for an hour in  a  location  where  the  temperature  is  °C (41°F) or warmer before charging.
VI. MAINTENANCE
Use only a dry, soft cloth for wiping the unit. Do not use a damp cloth, thinner, benzine, or other volatile solvents for cleaning. 
						

							
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Federal  Communications  Commission  Interference 
Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, 
pursuant to part 1 of the FCC Rules. These limits are designed to provide reasonable protection 
against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may  cause  harmful  interference  to  radio  communications.  However,  there  is  no  guarantee  that interference will not occur in a particular installation. If this equipment does cause harmful inter-ference  to  radio  or  television  reception,  which  can  be  determined  by  turning  the  equipment  off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• 
Reorient or relocate the receiving antenna.
• 
Increase the separation between the equipment and receiver.
• 
Connect  the  equipment  into  an  outlet  on  a  circuit  different  from  that  to  which  the  receiver  is connected.
• 
Consult the dealer or an experienced radio/TV technician for help.
FCC  Caution:  To  assume  continued  compliance,  install  and  use  in  accordance  with  provided instructions. Use only the battery pack specified in the instructions. Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.
FCC ID: O4O­EYFPA     IC: 8507A­EYFPA
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two 
conditions: (1) this device may not cause harmful interference and () this device must accept any 
interference received, including interference that may cause undesired o\
peration.
This Class B digital apparatus complies with Canadian ICES-00.
This device complies with Industry Canada license-ex­empt RSS standard(s). Operation is subject 
to  the  following  two  conditions:  (1)  this  device  may  not  cause  interference,  and  ()  this  device 
must  accept  any  interference,  including  interference  that  may  cause  undesired  operation  of  the device.
VII.  ACCESSORIES
Charger
•  EY0L
Battery pack
• EYFB60
Remote control
• EYFA1
Protector for tool
• EYFA07-A (Blue)
•  EYFA07-Y (Yellow)
•  EYFA07-H (Gray)
•  EYFA07-G (Green) 
Protector for battery
• EYFA0-H
Assembly Qualifier
• EYFRZ01
•  EYFR0
Tool hanger
• EYFA41
CAUTION:
• Tool hanger is for balancer use only.
  Excessive  force  or  impact  might  break  it 
and the main unit might fall off.
•  Use only applicable battery pack EYFB60. 
						

							
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VIII. SPECIFICATIONS
NOTE:Weight indicationGreater than or equal to 1 kg  : indicated by 0.0 kg.Less than 1 kg   : indicated by 0.01 kg.
MAIN UNIT
Model No.EYFPA1
JJR
Motor voltage 1.6 V DC
Chuck sizeSingle-ended□19.0 mm (3/4”)
No load speed 0 – 100
Impact per minute0 – 00
Maximum torque700 N·m
(660 kg f·cm, 614 in·lbs)
Torque control function operating range Approx. 160 – 60 N·m
(16 – 670 kg f·cm, 141 – 7 in·lbs)
Overall length 0 mm
(-7/”)
Weight (with battery pack: EYFB60) .6 kg (.0 lbs)
BATTERY PACK (not included with shipment)
Model No.EYFB60
Storage batteryLi-ion battery
Battery voltage 1.6 V DC (.6 V/6 cells)
BATTERY CHARGER (not included with shipment)
Model No. EY0L
RatingSee the rating plate on the bottom of the charger.
Weight0. kg (.0 lbs)
Charging timeEYFB60Usable: 6 min.
Full:  min.