Panasonic EY4542LN2L Operating Instructions Manual

							 - 1 -
Operating Instructions  
Bedienungsanleitung 
 
Cordless Multi Purpose Cutter 
Akku-Mehrzwecksäge 
 
 
Model No: EY4542 
 
 
Before operating this unit, please read these instructions completely and save this manual for future use. 
Vor Inbetriebnahme des Gerätes die Betriebsanleitung bitte gründlich durchlesen und diese Broschüre zum 
späteren Nachschlagen sorgfältig aufbewahren. 
  
						

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Index/Index 
English: Page  4 
Deutsch: Seite  21 
FUNCTIONAL DESCRIPTION 
FUNKTIONSBESCHREIBUNG 
 
Fig. 1  
						

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A  Power switch  B  Switch lock lever  C  Front grip 
 Betriebsschalter   Schalter-Verriegelungshebel  Vorderer Griff 
D Front cover  E  Transparent guard  F  Shoe 
 Frontabdeckung   Klarsichthaube   Gleitschuh 
G  Blade (EY9PM13C)  H  Lower guard  I  Retracting handle 
 Blatt (EY9PM13C)   Untere Schutzvorrichtung   Rückzughebel 
J  Dust case  K  Battery pack (EY9L40)  L  Storage slot for hex wrench 
 Staubgehäuse   Akkupack (EY9L40)   Schlüsseldepot 
M 
Battery pack alignment mark N  Battery pack release button  O  Control panel 
 
Akku-Ausrichtmarke  Akku-Entriegelungsknopf   Bedienfeld 
P  Depth adjustment nut  Q  LED light  R  Spindle lock button 
 Tiefeneinstellmutter   LED-Leuchte   Spindelarretierknopf 
S 
LED light on/off button T Overheat warning lamp 
(battery) U  Battery low warning lamp 
 
LED-Leuchten-EIN/AUS-Taste  Überhitzungs-Warnlampe 
(Akku)  Akkuladungs-Warnlampe 
V  Hex wrench  W  Li-ion battery pack dock  X  Battery charger (EY0L80) 
 Inbusschlüssel   Li-Ion-Akkuladeschacht   Ladegerät (EY0L80) 
Y Pack cover  Z Ni-MH/Ni-Cd battery pack 
dock  
 Akkuabdeckung   
Ni-MH/Ni-Cd-Akkuladeschacht  
  
						

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I. INTRODUCTION 
This tool is a Multi Purpose Cutter. By changing 
the blade, it can be used to cut wood, metal, and 
plastic. Dust can be collected by an integrated 
dust case or via a connected vacuum (by at-
taching the hose to the cutter). 
DANGER 
This product is a cutting tool, designed to cut 
through metal and wood. It has a rotating blade 
which is capable of cutting you deeply, causing 
serious injury or death. As a result, please read 
this manual and the cautionary markings on the 
tool carefully, and obey all of the Safety Instruc-
tions to avoid such injury. 
 
WARNING 
To avoid injury, never insert your finger or any 
other object into any opening of the tool. 
 
WARNING 
Read all safety warnings and all instructions. 
Failure to follow the warnings and instructions 
may result in electric shock, fire and/or serious 
injury.
 
How to Use This Manual 
• Please read this manual completely before 
starting to cut with your tool. If you let someone 
else use the tool, make sure they either read 
this manual or are fully instructed in the proper 
use and all safety precautions concerning the 
tool. 
•  Please keep this manual for future reference. It 
contains important safety information that you 
must follow to use the tool safely. 
• This manual and product use the following 
signal words: 
NOTE 
Notes provide additional information that you 
should know about the tool. 
CAUTION 
Caution indicates a potentially hazardous situa-
tion, which could result in minor or moderate 
injury if not avoided. Cautions also alert you to 
unsafe practices to be avoided. 
WARNING 
Warning indicates a potentially hazardous situa-
tion, which could result in serious injury or death 
if not avoided. DANGER 
Danger indicates an imminent hazard which will 
result in serious injury or death if not avoided. 
 
Read “the Safety Instructions” booklet and 
the following before using. 
II. ADDITIONAL SAFETY 
RULES 
Safety instructions for all 
saws 
DANGER 
1) Keep hands away from cutting area and the 
blade. Keep your second hand on auxiliary 
handle, or motor housing. If both hands are 
holding the saw, they cannot be cut by the 
blade. 
2) Do not reach underneath the workpiece. 
The guard cannot protect you from the blade 
below the workpiece. 
3) Adjust the cutting depth to the thickness of 
the workpiece. Less than a full tooth of the 
blade teeth should be visible below the work-
piece. 
4) Never hold piece being cut in your hands 
or across your leg. Secure the workpiece to 
a stable platform. It is important to support 
the work properly to minimize body exposure, 
blade binding, or loss of control. 
5) Hold power tool by insulated gripping sur-
faces when performing an operation where 
the cutting tool may contact hidden wiring 
or its own cord. Contact with a “live” wire will 
also make exposed metal parts of the power 
tool “live” and shock the operator. 
6) When ripping always use a rip fence or 
straight edge guide. This improves the ac-
curacy of cut and reduces the chance of blade 
binding. 
7) Always use blades with correct size and 
shape (diamond versus round) of arbour 
holes. Blades that do not match the mounting 
hardware of the saw will run eccentrically, 
causing loss of control. 
8) Never use damaged or incorrect blade 
washers or bolt. The blade washers and bolt 
were specially designed for your saw, for op-
timum performance and safety of operation. 
 
  
						

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Further safety instruc-
tions for all saws 
Causes and operator prevention of kickback: 
-  kickback is a sudden reaction to a pinched, 
bound or misaligned saw blade, causing an 
uncontrolled saw to lift up and out of the work-
piece toward the operator; 
-  when the blade is pinched or bound tightly by 
the kerf closing down, the blade stalls and the 
motor reaction drives the unit rapidly back to-
ward the operator; 
-  if the blade becomes twisted or misaligned in 
the cut, the teeth at the back edge of the blade 
can dig into the top surface of the wood caus-
ing the blade to climb out of the kerf and jump 
back toward the operator. 
Kickback is the result of saw misuse and/or in-
correct operating procedures or conditions and 
can be avoided by taking proper precautions as 
given below. 
1)  Maintain a firm grip with both hands on the 
saw and position your arms to resist kick-
back forces. Position your body to either 
side of the blade, but not in line with the 
blade.  
Kickback could cause the saw to jump back-
wards, but kickback forces can be controlled 
by the operator, if proper precautions are 
taken. 
2)  When blade is binding, or when interrupt-
ing a cut for any reason, release the trigger 
and hold the saw motionless in the material 
until the blade comes to a complete stop. 
Never attempt to remove the saw from the 
work or pull the saw backward while the 
blade is in motion or kickback may occur.   
Investigate and take corrective actions to 
eliminate the cause of blade binding. 
3)  When restarting a saw in the workpiece, 
center the saw blade in the kerf and check 
that saw teeth are not engaged into the 
material. 
If saw blade is binding, it may walk up or kick-
back from the workpiece as the saw is restarted. 
4)  Support large panels to minimize the risk of 
blade pinching and kickback. 
Large panels tend to sag under their own 
weight. Supports must be placed under the 
panel on both sides, near the line of cut and 
near the edge of the panel. 
5)  Do not use dull or damaged blades.   
Unsharpened or improperly set blades pro-
duce narrow kerf causing excessive friction, 
blade binding and kickback. 6)  Blade depth and bevel adjusting locking 
levers must be tight and secure before 
making cut.   
If blade adjustment shifts while cutting, it may 
cause binding and kickback. 
7)  Use extra caution when making a “plunge 
cut” into existing walls or other blind areas.   
The protruding blade may cut objects that can 
cause kickback. 
Safety instructions for 
this saw 
1)  Check lower guard for proper closing be-
fore each use. Do not operate the saw if 
lower guard does not move freely and close 
instantly. Never clamp or tie the lower guard 
into the open position. 
If saw is accidentally dropped, lower guard 
may be bent. Raise the lower guard with the 
retracting handle and make sure it moves 
freely and does not touch the blade or any 
other part, in all angles and depths of cut. 
2)  Check the operation of the lower guard 
spring. If the guard and the spring are not 
operating properly, they must be serviced 
before use.   
Lower guard may operate sluggishly due to 
damaged parts, gummy deposits, or a build-up 
of debris. 
3)  Lower guard should be retracted manually 
only for special cuts such as “plunge cuts” 
and “compound cuts.” Raise lower guard 
by retracting handle and as soon as blade 
enters the material, the lower guard must 
be released.   
For all other sawing, the lower guard should 
operate automatically. 
4)  Always observe that the lower guard is 
covering the blade before placing saw 
down on bench or floor.   
An unprotected, coasting blade will cause the 
saw to walk backwards, cutting whatever is in 
its path. Be aware of the time it takes for the 
blade to stop after switch is released. 
5)  Do not use any abrasive wheels. 
6)  Wear a dust mask, if the work causes dust. 
7)  Use saw blades recommended by Manu-
facture. 
8)  Wear ear protectors when using the tool for 
extended periods. 
9)  The risk of kickback increases as the bat-
tery pack discharges. 
10) Be sure to inspect material. Avoid cutting  
other different material. 
11) Be careful not to drop the tool.  
						

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12) Never swing the tool. 
13) Never cover the ventilation slots, and keep 
them free from dust or other material. 
14) Do not clamp the tool in a vise. Never cut 
with the tool held upside down in a vise. 
This is extremely dangerous and can lead 
to serious accidents. 
15) Never wear knitted gloves. 
16) Be sure no one is below when using the 
tool in high locations. 
17) Do not touch the blade immediately after 
operation. It may be hot and could burn 
your skin. 
18) Do not touch material after it has been cut. 
Cut material may be very hot. 
19) Do not use cutting oil. This use of cutting oil 
may cause a fire. 
20) Do not cut workpieces covered or stained 
with gas, oil, solvents, thinners, etc.   
  Exposure to these materials may damage 
the transparent guard. 
21) Do not remove the transparent and lower 
guards. If the transparent and lower guards 
is damaged or missing, return tool to au-
thorized service center for replacement. 
22) Do not start the blade when in contact with 
workpiece. Wait for blade to reach full 
speed before beginning cut. 
Symbol 
Symbol Meaning 
V Volts 
 Direct current 
n0 No load speed 
··· min-1 Revolutions or reciprocations 
A Amperes 
 
 
 
 
 
 
WARNING 
•  Do not use other than the Panasonic battery 
packs that are designed for use with this re-
chargeable tool. 
•  Do not dispose of the battery pack in a fire, or 
expose it to excessive heat. 
•  Do not drive the likes of nails into the battery 
pack, subject it to shocks, dismantle it, or at-
tempt to modify it. 
•  Do not allow metal objects to touch the battery 
pack terminals. 
•  Do not carry or store the battery pack in the 
same container as nails or similar metal ob-
jects. 
• Do not charge the battery pack in a 
high-temperature location, such as next to a 
fire or in direct sunlight. Otherwise, the battery 
may overheat, catch fire, or explode. 
•  Never use other than the dedicated charger to 
charge the battery pack. Otherwise, the bat-
tery may leak, overheat, or explode. 
•  After removing the battery pack from the tool 
or the charger, always reattach the back 
cover. Otherwise, the battery contacts could 
be shorted, leading to a risk of fire. 
 
III. ASSEMBLY 
Attaching or Removing Battery 
Pack 
CAUTION: 
Before inserting battery pack, check that the 
power switch in the tool actuates properly and 
returns to the “OFF” position when released. 
1.  To connect the battery pack (See Fig. 2) 
Line up the alignment marks and attach the 
battery pack. 
• Slide the battery pack until it locks into 
position. 
 
Fig. 2 
  
						

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2.  To remove the battery pack (See Fig. 3) 
Push on the button from the front to release 
the battery pack. 
 
Fig. 3 
IV. OPERATION 
Before Using the Tool 
This tool is intended for cutting unhardened fer-
rous metal, nonferrous metal, wood, and plastic. 
Refer to the “Accessories” section for a list of 
blades to be used for the proper applications of 
this tool. The following precautions must be fol-
lowed to reduce the risk of injury; 
•  Do not cut stacked materials. Cut one piece at 
a time. 
•  Do not cut hardened steel. 
•  Cut materials with the wider edge of the shoe 
over the clamped side of the material. 
•  Do not touch the saw blade, workpiece, or 
cutting chips with bare hands immediately after 
cutting; they may be hot and could burn skin. 
Each time you use the tool, you must make sure 
it is in good operating condition. 
Use the following checklist: 
1. Is the blade installed in the correct direction? 
  The arrow on the blade must point in the same 
direction as the arrow on the upper blade cover. 
2. Is the blade installed properly? 
  Make sure the hex bolt is tightened securely. 
(See Fig. 6) 
3. Does the blade look alright? 
  Replace the blade immediately if there are any 
cracks in it or if any teeth are broken. 
4. Does the lower guard close properly? 
WARNING 
To avoid injury, do not use the tool if the lower 
guard does not close quickly over the blade. 
5. Is the transparent guard securely installed? 6. Is the battery pack charged and inserted firmly 
to the tool? 
7. Is the depth adjustment nut for cutting securely 
tightened? 
8. Is the workpiece securely clamped on a saw 
horse or bench? 
9. Is the dust case or front cover clogged with 
dust? 
  Disengage the front cover lock button and 
remove any dust that has become clogged in-
side the cover. If the cover is clogged, use a 
long object such as a manual screwdriver to 
unclog it. After doing so, close the front cover. 
(See Fig. 4) 
 
Fig. 4 
  If there is dust inside the dust case, disengage 
the dust case lock button, detach the dust case, 
and remove the dust. After doing so, reattach 
the dust case. (See Fig. 5) 
 
Fig. 5 
 
  
						

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Installing Blade 
Follow these steps: 
1. Remove the battery pack from the tool. 
2. Remove any cutting debris from blade area. 
3. Use the retracting handle to retract (open) the 
lower guard. 
4. Install the blade as illustrated. (See Fig. 6) 
  Make sure that both the direction arrow on the 
blade and the direction arrow on the upper 
blade cover point in the same direction. 
5. Set the outer washer in place. 
6. Insert the hex bolt. 
7. Hold the spindle lock button down. This pre-
vents the blade from rotating. 
8. Tighten the hex bolt securely with the provided 
hex wrench. Store the hex wrench. 
NOTE:  
Keep the hex wrench in the storage slot on the 
cutter’s body when not using it. 
WARNING 
Failure to follow these instructions can result in 
serious personal injury. 
 Removing Blade 
CAUTION: The blade will be hot right after cutting. Be sure 
to let the blade cool down before removing it. 
Follow these steps: 
1. Remove the battery pack from the tool. 
2. Hold the spindle lock button down. This pre-
vents the blade from rotating. 
3. Use the provided hex wrench to loosen the hex 
bolt. 
NOTE:
 
Keep the hex wrench in the storage slot on the 
cutter’s body when not using it. 
4. Remove the hex bolt and outer washer. 
5. Use the retracting handle to retract (open) the 
lower guard. 
6. Carefully remove the blade. 
7. Clean the tool if necessary. 
CAUTION:
 Be careful to avoid cutting your hands on the 
blade. 
• When disposing of a blade, secure it inside 
heavy or corrugated paper. This will help 
prevent anyone from being cut by the dis-
carded blade.
 
 
Fig. 6
 
   
						

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Using the Tool 
CAUTION: 
To reduce the risk of injury read the Safety In-
structions at the front of this manual before using 
the tool. 
WARNING 
To reduce the risk of injury, wear safety gog-
gles or glasses with side shields while using 
the cutter. Additionally, wear a dust mask 
when cutting materials that generate exces-
sive particulate matter. Do not use cutter in 
the rain. Doing so may result in electric shock 
or cause the cutter to emit smoke.   
Do not cut materials on which there is any 
paint thinner, gasoline, oil, or similar build-up. 
Doing so may cause the dust case to crack, 
resulting in injury. 
Follow these steps: 
Hold the tool with both hands. (See Fig. 8) Do not 
attempt to remove cut material when blade is 
moving. 
1. Line up the sight line on shoe with your cutting 
line. (See Fig. 7) 
Alignment with cutting line 
• Position the notch on the shoe over the cutting 
line, aligning the top and bottom corners of the 
diamond-shaped opening with the line. 
  As the cutting position may differ depending on 
the blade, do a trial cut beforehand. 
 
Fig. 7 
2. Press the switch lock lever down, then 
squeeze the power switch to start the motor, 
and then release the switch lock lever. 
 
Fig. 8 
CAUTION:
 
•  Check that the switch lock lever works. 
  If power switch can be activated without de-
pressing the switch lock lever, discontinue use 
immediately. Take the tool to an authorized 
service center. 
• Always hold the handle with one hand and the 
front grip with the other. (See Fig. 8) Maintain a 
firm grip and depress the switch fully. 
•  The blade should not touch the cutting material 
before you start the motor. Wait until the blade 
reaches full speed before starting a cut. 
• This tool has no provision to lock the power 
switch in the “ON” position, and you must not 
attempt to secure it in the “ON” position. 
3. Start cutting when the blade reaches full 
speed. 
4. During cutting, keep your cutting line straight. 
Move the tool forward at a steady speed, while 
looking at the tip of the blade through the 
transparent guard. 
WARNING 
• To prevent dangerous kickback, keep the 
shoe of the tool flat on the surface of the ma-
terial being cut. 
• Never force the tool. Use light and continuous 
pressure. 
5.If the motor starts to feel too warm, stop cutting. 
Let the tool cool down before continuing work. 
6. It is always a safe practice to remove the bat-
tery pack after use and before storing the tool. 
Cutting depth adjustment   
• Remove battery pack. 
•  Loosen the depth adjustment nut and adjust 
the cutting depth, using the graduations on the 
lower guard to gauge the depth. Once finished 
adjusting the depth, tighten the depth adjust- 
						

							 - 10 -
ment nut securely. 
* When wood material is 10 mm (3/8) or less 
thick, adjust the cutting depth so that the blade 
protrudes approx. 5 mm (3/16) from the bot-
tom of the material. 
 
Fig. 9 
Rip fence (EY3500B7727) 
(Available as an accessory, not included) 
Rip fence is convenient for rip cuts and repeated 
cuts of uniform width.   
• Remove battery pack. 
•  Insert rip fence and adjust cutting width. (See 
Fig. 10) 
•  Fasten screw securely to fix rip fence. 
 
Fig. 10 
Collecting Dust 
WARNING 
* Before cutting metal materials, always empty  
the dust case, open the front cover and remove 
the dust. 
• Use the cutter with the flammable materials in 
the dust case to cut metal materials may re-
sult in fire. 
* When cutting metal materials, always use the 
cutter with the dust case attached. 
• Flying sparks and metal chips may cause in-
jury. 
* When cutting metal materials, do not attach a 
vacuum cleaner. 
  Sparks and hot metal chips may cause the 
vacuum to be caught in fire. Operate the vac-
uum cleaner in accordance with its instruc-
tions. 
 
(1)  Collect dust in the dust case. 
* Empty the dust case when it is filled up with 
dust.  
* Empty the dust case before storing the 
cutter. 
* Dust case capacity 
• When cutting electrical conduit with a 
diameter of 25 mm (1), approximately xx 
cuts 
• When cutting 45 mm (25/32) x 45 mm 
(25/32) lumber, approximately xx cuts 
NOTE 
The unique physical properties of some materials 
may cause dust to become clogged inside the 
front cover when cutting those materials. 
 
Fig. 11 
(2) Use with vacuum cleaner to collect dust. 
* Connect the cutter to the hose using the 
EY9X012E vacuum cleaner hose adapter 
(sold separately). 
  Compatible hose inner diameter: 25 mm 
(1) to 38 mm (2/1) 
* Operate the vacuum cleaner obeying its in-
structions.