Tone TNC-24EZA-1 User manual

MODEL
MODELMODEL
MODEL
TNC
TNCTNC
TNC-
--
-24EZA
24EZA24EZA
24EZA-
--
-1
11
1
WARNING
WARNINGWARNING
WARNING
Read and fully understand all the instructions before use.
Keep this manual in designated place for easy and quick reference.
The models mentioned on this manual are designed for use outside Japan.
Warranty shall be void if above mentioned models are use in Japan.

- 1 -
PREFACE
PREFACEPREFACE
PREFACE
Thank you for purchasing .
■ Upon receipt, check and confirm the following:
- Check any transport damages.
- Check for any loose or lost screws and bolts.
- Check the model as per order.
- Check all the accessories are contained.
If any problems are found, contact your distributor.
■ Read this instruction manual carefully before use.
Full understanding of manual is essential to prevent personal injury or
malfunction.
■ Keep this manual in a bag attached to the back of metal case lid for easy and
quick reference.
■ If manual or warning label is lost or becomes illegible, or if additional manual is
required, contact your distributor.
If you have any questions about the products or the contents of this
instruction manual, contact your distributor.
This manual is only applicable to outside Japan.

- 2 -
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONSSAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
This manual specifies three (3) basic safety instructions:
■ Instructions are classified by degree of risk and described as follows:
Danger is used to indicate threatening
dangerous or unsafe practices which could
immediately result in severe personal injury
or death in the worst case.
Warning is used to indicate hazardous or unsafe
practices which could result in severe
personal injury or death in the worst
occasion.
Caution is used to indicate hazardous or unsafe
practices which could result in personal
injury or product or property damage.
Even if the risk is classified as , risk could become more serious
result depending on conditions. Make sure to follow all instructions when
using.

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TABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
1. GENERAL SAFETY INSTRUCTIONS···································· 4
2. APPLICATION················································································ 7
3. PRECAUTIONS FOR USE ·················································· 7
4. PART NAME & ACCESSORY················································16
5. BEFORE USE ···············································································18
6. CHANGING BAR SOCKET······················································19
7. OPERATING PROCEDURE·····················································20
8. ERROR & STATUS INDICATION ·········································25
9. INSPECTION & MAINTENANCE···········································26
10. FEATURES ····················································································27
11. SPECIFICATIONS·······································································28
12. AFTERSALES SERVICE ··························································28

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1.
1.1.
1. GENERAL SAFETY INSTRUCTIONS
GENERAL SAFETY INSTRUCTIONS GENERAL SAFETY INSTRUCTIONS
GENERAL SAFETY INSTRUCTIONS
WARNING
WARNINGWARNING
WARNING
When using electric tools, basic safety precautions, including the following, should
always be followed to reduce the risk of fire, electric shock and personal injury.
Read all these instructions before operating this product and keep these
instructions.
SAVE
SAVESAVE
SAVE THESE
THESETHESE
THESE INSTRUCTIONS
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONS
1)
1)1)
1) Work area
Work areaWork area
Work area
a) Keep work area clean and well lit. Cluttered and dark areas invite
accidents.
b) Do not operate power tools in explosive atmospheres, such as in
the presence of flammable liquids, gases or dust. Power tools create
sparks which may ignite the dust of fumes.
c) Keep children and bystanders away while operating a power tool.
Distractions can cause you to lose control.
2)
2)2)
2) Electrical safety
Electrical safetyElectrical safety
Electrical safety
a) Power tool plugs must match the outlet. Never modify the plug in any way.
Do not use any adapter plugs with earthed (grounded) power tools.
Unmodified plugs and matching outlets will reduce risk of electric shock.
b) Avoid body contact with earthed or grounded surfaces such as pipes,
radiators, ranges and refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
c) Do not expose power tools to rain or wet conditions. Water entering
a power tool will increase the risk of electric shock.
d) Do not abuse the cord. Never use the cord for carrying, pulling or
unplugging the power tool. Keep cord away from heat, oil, sharp
edges or moving parts. Damaged or entangled cords increase
the risk of electric shock.

- 5 -
e) When operating a power tool outdoors, use an extension cord
suitable for outdoor use. Use of a cord suitable for outdoor use reduces
the risk of electric shock.
3)
3)3)
3) Personal safety
Personal safetyPersonal safety
Personal safety
a) Stay alert, watch what you are doing and use common sense
when operating a power tool. Do not use a power tool while you are tired
or under the influence of drugs, alcohol or medication.
A moment of inattention while operating power tools may result in serious
personal injury.
b) Use safety equipment. Always wear eye protection. Safety equipment
such as dust mask, non-skid safety shoes, hard hat, or hearing
protection used for appropriate conditions will reduce personal injuries.
c) Avoid accidental starting. Ensure the switch is in the off position
before plugging in. Carrying power tools with your finger on the switch
or plugging in power tools that have the switch on invites accidents.
d) Remove any adjusting key or wrench before turning the power tool on.
A wrench or a key left attached to a rotating part of the power tool may
result in personal injury.
e) Do not overreach. Keep proper footing and balance at all times.
This enables better control of the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing or jewelry. Keep your hair,
clothing and gloves away from moving parts. Loose clothes, jewelry or
long hair can be caught in moving parts.
g) If devices are provided for the connection of dust extraction and collection
facilities, ensure these are connected and properly used. Use of these
devices can reduce dust related hazards.

- 6 -
4)
4)4)
4) Power tool use and care
Power tool use and carePower tool use and care
Power tool use and care
a) Do not force the power tool. Use the correct power tool for your
application. The correct power tool will do the job better and safer at the
rate for which it was designed.
b) Do not use the power tool if the switch does not turn it on and off.
Any power tool that cannot be controlled with the switch is dangerous and
must be repaired.
c) Disconnect the plug from the power source before making any adjustments,
changing accessories, or storing power tools. Such preventive safety
measures reduce the risk of starting the power tool accidentally.
d) Store idle power tools out of the reach of children and do not allow
persons unfamiliar with the power tool or these instructions to operate the
power tool. Power tools are dangerous in the hands of untrained users.
e) Maintain power tools. Check for misalignment or binding of moving parts,
breakage of parts and any other condition that may affect the power tools
operation. If damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power tools.
f) Keep cutting tools sharp and clean. Properly maintained cutting tools with
sharp cutting edges are less likely to bind and are easier to control.
g) Use the power tool, accessories and tool bits etc., in accordance with
these instructions and in the manner intended for the particular type of
power tool, taking into account the working conditions and the work to be
performed. Use of the power tool for operations different from intended
could result in a hazardous situation.
5)
5)5)
5) Service
ServiceService
Service
a) Have your power tool serviced by a qualified repair person using
only identical replacement parts. This will ensure that the safety of the
power tool is maintained.

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2
22
2.
..
. APPLICATION
APPLICATION APPLICATION
APPLICATION
■ TURN OF THE NUT TIGHTENING WRENCH
TURN OF THE NUT TIGHTENING WRENCHTURN OF THE NUT TIGHTENING WRENCH
TURN OF THE NUT TIGHTENING WRENCH is an electric tool for
tightening High Strength Hexagonal Bolts/Nuts according to
Turn-of-Nut Method.
3
33
3.
..
. PRECAUTIONS FOR USE
PRECAUTIONS FOR USE PRECAUTIONS FOR USE
PRECAUTIONS FOR USE
■ To prevent accident, personal injury and etc, read and follow all
instructions listed below.
■ Follow all instructions listed below before using the tool.
DANGER
DANGERDANGER
DANGER
●
●●
● Beware
Beware Beware
Beware of electric shock when operating at high place.
of electric shock when operating at high place. of electric shock when operating at high place.
of electric shock when operating at high place.
○ Failure to follow this instruction may result in fall down accidents.
●
●●
● Do not touch bar socket when operating.
Do not touch bar socket when operating. Do not touch bar socket when operating.
Do not touch bar socket when operating.
○ Remove the gap between the bar socket and the reaction member in
order not to pinch finger, hand or foot.
○ Beware that the reaction bar on the bar socket rotates to opposite
direction to that of nut rotating direction.
Failure to follow this instruction may result in personal injury such as finger
amputation.

- 8 -
WARNING
WARNINGWARNING
WARNING
●
●●
● Bar socket must be placed perpendicular to a solid reaction
Bar socket must be placed perpendicular to a solid reaction Bar socket must be placed perpendicular to a solid reaction
Bar socket must be placed perpendicular to a solid reaction
member.
member.member.
member.
○ Place the reaction bar properly to the reaction member.
○ Use buffers like steel plate in between the reaction member and the bar
socket if the reaction member is not solid. Also, make sure the buffers
placed securely.
Failure to follow this instruction may result in insufficient tightening result or
breakage of the bolt and nut or personal injury.
●
●●
● Never use the wrench under rainy or snowy condition.
Never use the wrench under rainy or snowy condition. Never use the wrench under rainy or snowy condition.
Never use the wrench under rainy or snowy condition.
Failure to follow this instruction may result in electric shock or electric
leakage.
●
●●
● Hold the wrench firmly when in operation.
Hold the wrench firmly when in operation. Hold the wrench firmly when in operation.
Hold the wrench firmly when in operation.
○ The wrench stops automatically with huge reaction force just after
tightening bolt completely.
Failure to follow this instruction may result in person injury.
●
●●
● Electric cord must be regularly inspected.
Electric cord must be regularly inspected. Electric cord must be regularly inspected.
Electric cord must be regularly inspected.
○ Stop using the wrench if there is a problem with the electric cord.
○ Contact your distributor for repair.
Failure to follow this instruction may result in electric shock or electric
leakage.

- 9 -
WARNING
WARNINGWARNING
WARNING
●
●●
● Never use the wrench around the place where gasoline,
Never use the wrench around the place where gasoline, Never use the wrench around the place where gasoline,
Never use the wrench around the place where gasoline,
gas, thinner,
gas, thinner, gas, thinner,
gas, thinner, benzene
benzenebenzene
benzene, etc., are stored.
, etc., are stored. , etc., are stored.
, etc., are stored.
○ Do not use the wrench around flammable substances to avoid the
accidental fire caused by the spark out of the electric motor.
Failure to follow this instruction may result in explosion or fire.
●
●●
● Beware of fall down accident when working at a high place.
Beware of fall down accident when working at a high place. Beware of fall down accident when working at a high place.
Beware of fall down accident when working at a high place.
○ Wear safety belt.
○ Provide safety net or canvas as safe guarding against falling items.
○ Confirm that no one is underneath the working site before operation.
○ Stop operation when physically or mentally tired.
Failure to follow these instructions may result in fall down accidents.
●
●●
● Avoid overloading.
Avoid overloading. Avoid overloading.
Avoid overloading.
○ Use the wrench and its accessories within the rated specifications.
Overloaded the wrench and its accessories may result in malfunction of the
wrench or accidents or personal injury.
●
●●
● Properly install bar sockets as described in this manual.
Properly install bar sockets as described in this manual. Properly install bar sockets as described in this manual.
Properly install bar sockets as described in this manual.
Incomplete installation may result in accidents and personal injury.
See “CHANGING BAR SOCKETS” on page (➭P.19)
●
●●
● Avoid accidental starting.
Avoid accidental starting. Avoid accidental starting.
Avoid accidental starting.
○ Never carrying the wrench with your fingers on the switch when the plug
is connected to power source.
Accidental starting may result in personal injury.

- 10 -
WARN
WARNWARN
WARNING
INGING
ING
●
●●
● Disconnect the plug from the power source when:
Disconnect the plug from the power source when: Disconnect the plug from the power source when:
Disconnect the plug from the power source when:
○ Not in use.
○ Changing accessories.
○ Inspection and maintenance.
○ Or other danger is foreseen.
Failure to follow this instruction may result in accidental starting and
personal injury.
●
●●
● Do not d
Do not d Do not d
Do not disassemble or modify the wrench.
isassemble or modify the wrench.isassemble or modify the wrench.
isassemble or modify the wrench.
Disassembly or modification made by unauthorized personnel may result in
malfunction or personal injury.
* Disassembly & Re-assembly work is permitted for the following
expendables: Bar Sockets, Set Screws, Carbon Brushes.
●
●●
● Store the wrench in the metal case and keep it at the designated
Store the wrench in the metal case and keep it at the designated Store the wrench in the metal case and keep it at the designated
Store the wrench in the metal case and keep it at the designated
place when not in use.
place when not in use.place when not in use.
place when not in use.
○ Store the wrench in lockable dry location to keep any unauthorized
personnel away.
Failure to follow this instruction may result in malfunction or accidents.
●
●●
● Im
Im Im
Immediate stop using and then unplug the wrench when unusual
mediate stop using and then unplug the wrench when unusual mediate stop using and then unplug the wrench when unusual
mediate stop using and then unplug the wrench when unusual
sound, vibration or smell is detected.
sound, vibration or smell is detected. sound, vibration or smell is detected.
sound, vibration or smell is detected.
○ Contact your distributor.
Failure to follow this instruction may result in serious injury.
●
●●
● Contact your distributor for repair service.
Contact your distributor for repair service. Contact your distributor for repair service.
Contact your distributor for repair service.
Repair work done by an inexperienced person may cause accidents, injury or
malfunction.

- 11 -
WARNING
WARNINGWARNING
WARNING
●
●●
● Check the following items before operation.
Check the following items before operation. Check the following items before operation.
Check the following items before operation.
○ Check for any deformation, crack or damage on the wrench body,
sockets, electric cord, plug earth cable and etc.
Do not use the wrench if any problems are found on items listed above.
Failure to follow this instruction may result in electric shock, fire, burn
accidents or personal injury.
●
●●
● Use appropriate power source as indicated on the rating plate.
Use appropriate power source as indicated on the rating plate. Use appropriate power source as indicated on the rating plate.
Use appropriate power source as indicated on the rating plate.
Failure to follow this instruction may result in fire or burn accidents.
●
●●
● Immediately check the wrench when it is dropped down or banged.
Immediately check the wrench when it is dropped down or banged. Immediately check the wrench when it is dropped down or banged.
Immediately check the wrench when it is dropped down or banged.
○ Check for deformation, crack, damage and other abnormality.
Stop using the wrench if any abnormality is found.
Continued use of the fault wrench may result in accidents and personal
injury.
●
●●
● Check if leakage breaker is available
Check if leakage breaker is available Check if leakage breaker is available
Check if leakage breaker is available together
togethertogether
together with earth
with earth with earth
with earth
connection.
connection. connection.
connection.
○ Recommended leakage breaker: Rating capacity at 15mA and acting
time below 0.1sec.
Failure to follow this instruction may result in electric shock, fire or leakage.
●
●●
● Grounding required during operation.
Grounding required during operation. Grounding required during operation.
Grounding required during operation.
Failure to follow this instruction may result in electric shock, fire or leakage.

- 12 -
WARNING
WARNINGWARNING
WARNING
●
●●
● Do not connect ground lead to gas pipe.
Do not connect ground lead to gas pipe. Do not connect ground lead to gas pipe.
Do not connect ground lead to gas pipe.
Failure to follow this instruction may result in fire or burn accidents.
●
●●
● If extension cable is used, apply those with earth and 3
If extension cable is used, apply those with earth and 3 If extension cable is used, apply those with earth and 3
If extension cable is used, apply those with earth and 3-
--
-P cable.
P cable.P cable.
P cable.
○ Use one of leads for earth and connect to earth on the wrench side.
Applying 2-P cable may result in electric shock.

- 13 -
CAU
CAUCAU
CAUTION
TIONTION
TION
●
●●
● Use commercial power supply.
Use commercial power supply. Use commercial power supply.
Use commercial power supply.
●
●●
● Follow the instructions below when using generators.
Follow the instructions below when using generators. Follow the instructions below when using generators.
Follow the instructions below when using generators.
■ Use 50-60Hz sinusoidal power supply without high harmonic wave.
Power supply including high harmonic wave may cause malfunction
or breakage of the wrench.
■ Use high capacity generators.
Almost 2kW (2kVA) is required per one wrench.
■ The operating voltage must remain within +/-10% of the rated
voltage at all times.
■ Do not use inverter generators.
Inverter generators may cause malfunction or breakage of the wrench.
(Inverter Generator: The engine rpm will speed up and slow down
automatically due to the wattage being pulled from the generator.)
●
●●
● Do not use welder generators.
Do not use welder generators. Do not use welder generators.
Do not use welder generators.
■ Welder generators may cause malfunction or breakage of the control
base installed in the wrench.
■ Some welder generators produce electrical noise which may make the
wrench out of control.
●
●●
● Do not use welders along with the wrench.
Do not use welders along with the wrench. Do not use welders along with the wrench.
Do not use welders along with the wrench.
■ The wrench may be out of control due to extraordinary electrical noise
even if welders are connected to other generators that TN wrenches are
not connected to.
●
●●
● Keep work area clean.
Keep work area clean. Keep work area clean.
Keep work area clean.
■ Cluttered areas and benches invite accidents.
●
●●
● Keep children away.
Keep children away. Keep children away.
Keep children away.
■ Do not let children touch the wrench and electric cord.
■ All visitors should be kept away from work area.

- 14 -
CAUTION
CAUTIONCAUTION
CAUTION
●
●●
● Secure work area.
Secure work area. Secure work area.
Secure work area.
■ Keep body stance balanced and firmed.
■ Never wrap the electric cord around something.
■ Do not trip over the electric cord during operation.
■ Keep work area well it.
●
●●
● Use suitable model for each application.
Use suitable model for each application. Use suitable model for each application.
Use suitable model for each application.
■ Do not use the wrench beyond its rated specifications.
■ Do not use the wrench for purpose not intended.
●
●●
● Dress properly.
Dress properly. Dress properly.
Dress properly.
■ Always wear gloves and non-skid footwear when operating
outdoor.
■ Always wear safety helmet.
●
●●
● Use genuine accessories or att
Use genuine accessories or att Use genuine accessories or att
Use genuine accessories or attachments manufactured by Maeda
achments manufactured by Maeda achments manufactured by Maeda
achments manufactured by Maeda
Metal Industries, Ltd.
Metal Industries, Ltd.Metal Industries, Ltd.
Metal Industries, Ltd.
●
●●
● Do not connect multiple plugs to a single outlet by using multiple
Do not connect multiple plugs to a single outlet by using multiple Do not connect multiple plugs to a single outlet by using multiple
Do not connect multiple plugs to a single outlet by using multiple
outlet adaptors.
outlet adaptors.outlet adaptors.
outlet adaptors.
Over current may cause fire, accidents or malfunction.
●
●●
● Do not abuse the electric cord.
Do not abuse the electric cord. Do not abuse the electric cord.
Do not abuse the electric cord.
■ Never use the electric cord for carrying, pulling or unplugging the power.
■ Keep the electric cord away from heat, oil, sharp edge or moving parts.
●
●●
● Keep electric motor well ventilated.
Keep electric motor well ventilated. Keep electric motor well ventilated.
Keep electric motor well ventilated.
■ Do not put any foreign materials in the vent.
■ Do not block exhaust vent.

- 15 -
C
CC
CAUTION
AUTIONAUTION
AUTION
●
●●
● Maintain the wrench.
Maintain the wrench. Maintain the wrench.
Maintain the wrench.
■ Keep the wrench handle clean, dry and free of oil or grease.
●
●●
● Provide leakage breaker as a shock guard for each wrench.
Provide leakage breaker as a shock guard for each wrench. Provide leakage breaker as a shock guard for each wrench.
Provide leakage breaker as a shock guard for each wrench.
●
●●
● When using an extension cord, make sure that voltage remains
When using an extension cord, make sure that voltage remains When using an extension cord, make sure that voltage remains
When using an extension cord, make sure that voltage remains
within +/
within +/within +/
within +/-
--
- 10% of the rated voltage a
10% of the rated voltage a 10% of the rated voltage a
10% of the rated voltage at all time.
t all time. t all time.
t all time.
●
●●
● When applying an extension cord, se
When applying an extension cord, seWhen applying an extension cord, se
When applying an extension cord, select shorter
lect shorter lect shorter
lect shorter extension units
extension units extension units
extension units
than
than than
than specified
specifiedspecified
specified below depending on the cross section.
below depending on the cross section. below depending on the cross section.
below depending on the cross section.
Max. Length Nominal conducting cable
cross section 110-120 V
1.25 mm
2
10 m
2.0 mm
2
15 m
H07RN-F
3.5 mm
2
30 m
AWG 14 50 ft(15 m)
AWG 12 80 ft(25 m)
AWG 10 130 ft(40 m)
■ Using extension cord more than Maximum Length may result in
malfunction or breakdown due to performance drop of the wrench.
●
●●
● Observe local laws and rules concerning noise level.
Observe local laws and rules concerning noise level. Observe local laws and rules concerning noise level.
Observe local laws and rules concerning noise level.

- 16 -
4
44
4.
..
. P
P P
PART NAME & ACCESSORY
ART NAME & ACCESSORYART NAME & ACCESSORY
ART NAME & ACCESSORY
Part Name
Part NamePart Name
Part Name

- 17 -
Accessories
AccessoriesAccessories
Accessories
MODEL ACCESSORIES
TNC-24EZA-1
1 size of bar socket (24UR32T or 24UR36T or 24UR41T)
Screwdriver (-)
* PSD-M2 (for socket)
* BBD-M50 (for control base)
Metal Case
Instruction manual
● Contact your distributor for accessories listed above.

- 18 -
5
55
5.
..
. BEFORE USE
BEFORE USE BEFORE USE
BEFORE USE
WARNING
WARNINGWARNING
WARNING
●
●●
● Check followings before connecting the plug into power source.
Check followings before connecting the plug into power source. Check followings before connecting the plug into power source.
Check followings before connecting the plug into power source.
Accidental starting invites personal injury.
○ Check for any deformation, crack or damage on the wrench body,
socket electric cord, etc.
Do not use the wrench if any problem is found on items above.
○ Make sure to use commercial power supply.
Use appropriate power source as indicated on the rating plate.
○ Choose proper bar socket suitable for bolts to be tightening.
○ Make sure that the bar socket is correctly installed on the wrench.
Loose installation may result in accidents and personal injury.
See “CHANGING BAR SOCKET”(➭P.19)
○ Implement exercise procedure before operation.
CAUTION
CAUTIONCAUTION
CAUTION
●
●●
● Exercise procedure with no
Exercise procedure with no Exercise procedure with no
Exercise procedure with no-
--
-load should be carried out at least 5
load should be carried out at least 5 load should be carried out at least 5
load should be carried out at least 5
minutes before operation.
minutes before operation.minutes before operation.
minutes before operation.
Failure to follow this instruction may result in making the wrench
stuck on the bolts.

- 19 -
6
66
6.
..
. CHANGING BAR SOCKET
CHANGING BAR SOCKET CHANGING BAR SOCKET
CHANGING BAR SOCKET
○ Remove bar socket form the wrench by unscrewing set screws with (-)
driver. Do not remove the set screws completely from outer socket
holder.
○ Select adequate bar socket for the bolts being tightened.
i.e. Use TONE genuine 7/8” bar socket for tightening 7/8” high strength
hexagonal bolts/nuts.
○ Mount the bar socket on the wrench body and remove the gap between the
bar socket and the wrench body.
Fasten the set screws only after the gap is completely removed.
○ Pull the bar socket in order to confirm that the bar socket was mounted on
the wrench body completely.