Nitto Kohki HB-15B User manual

Specifications
Due to continuous product development/improvement the specifications and
configurations in this document are subject to change without prior notice.
ELECTRIC CHAMFERING TOOL
Please read this manual carefully before you attempt to use your tool so that you may use
it properly and safely.
HAND BEVELER Model HB-15B
PROFESSIONAL TOOL
HB-15B
Model HB-15B
Power Source (Single Phase) 110 V-120 V AC 60 Hz 220 V-240 V AC 50 Hz
Rated Power Consumption 910 W
Rated Current 10.5 A 4.0 A
Rated Time Continuous
Rated Speed (No Load) 3,340 min-1 2,750 min-1
Chamfering Capacity 0 C to 15 C
Chamfering Angle 15° to 45°
Mass (Weight) 14 kg
Sound Pressure Level No Load 64 dB(A)
Load 90 dB(A)
Sound Power Level No Load 74 dB(A)
Load 101 dB(A)
Vibration Level
(According to ISO20643) Load T Handle 0.97 m/s2
Sub Handle 1.40 m/s2
Manufactured by :
NITTO KOHKI Co., Ltd.
2-9-4, Nakaikegami, Ohta-ku,
Tokyo, 146-8555, Japan
TEL : [phone]
FAX : [phone]
E-mail : [email protected]
URL : www.nitto-kohki.co.jp
Keep the manual handy – so you can use it whenever necessary.
Orijinal Instructions

1
Thank you very much for your purchase of this
Nitto Kohki products.
Before using your tool, please read this manual
carefully so that you may use it properly to get
the most out of it.
Please keep the manual handy - so you can
use it whenever necessary.
・English : Please ask your dealer or
distributor for instruction manual
in local language(s).
・German : Bitte fragen Sie lhren Händler
nach eine Betriebsanleitung in
Landessprache.
・French : S'il vous plait, veuillez demandez
á votre foumisseur de manuel
instruction en langue locale.
・Spanish : Por favor, cantacte con su
distribuidor para el manual de
instrucciones en español.
・Portuguese : Por favor pessa ao seo agente
ou distribuidor o manual de
instrucces ih linguagen local.
・Italian : Per Manuale lstruzioni in lingua
locale Vi preghiamo di rivolgervi
al rivenditore o distributore.
・Dutch : Vraag uw handelaar
om een nederladstalige
gebruiksaanwijzing.
・Swedish : Be er lokala Åtreförsäljare eller
distributör om manualer pá
svenska.
・Danish : Venligst henvend Dem til
den danske distributør for
instructions manualer.
・Polish : Prosze pytac swojego dealera
lub dystrybutora o instrukcje
obslugi w jezyku localnym.
・中文 :
CONTENTS page
IMPORTANT SAFETY INSTRUCTIONS …………………… 2
GENERAL: TOOLS …………………………………………… 2
GENERAL: POWER TOOLS ……………………………… 3
INSTRUCTIONS FOR THIS TOOL ………………………… 4
1. USAGE …………………………………………………… 4
2. CHECK THE CONTENTS OF THE PACKAGE ……… 4
3. PREPARATIONS ………………………………………… 4
4. HOW TO OPERATE THE TOOL ……………………… 6
5. HOW TO REPLACE INDEXABLE INSERTS
AND THE HOLDERS ……… 6
6. MAINTENANCE AND INSPECTION …………………… 7
7. CONDITION FOR USE ………………………………… 7
8. ORDERING SERVICE PARTS ………………………… 7
9. OPTIONAL PARTS ……………………………………… 7
10. EXPLODED DIAGRAM : HB-15B ……………………… 8
PICTOGRAM
Warning:Itmightbedangeroustooperatethetool
iftheinstructionssuppliedarenotfollowed.
Usingthistoolimproperlycouldresultinserious
injury.Readtheinstructionmanualbeforeusing.
Alwayswearsuitableeyeprotection.
Alwayswearsuitablehearingprotection.
Alwayswearrespiratoryprotectiveequipment
(PPE).
Alwayswearprotectiveglovesforprotectionof
handsfromVibration,ShockandBurns.
StorageTemperature: -10℃-60℃(nofreezing)
StorageHumidity: Maximum90%at25℃(nodewing)
OperatingTemperature: 5℃-40℃
OperatingHumidity: Maximum90%at25℃(nodewing)
Altitude: 1000mMax.
Over-voltageCategory: CategoryⅡaccordingtoIEC60664-1
PollutionDegree: Degree3accordingtoIEC60664-1
The following Safety notations are used throughout the manual to highlight safety precautions for the user and for the tool.
WARNING: Indicates a potentially hazardous situation which, if not avoided by following the
instructions given, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided by following the
instructions given, could result in injury or material damage.
Please note, however, that failure to observe safety precautions under the “ Caution” category could result in a serious
occurrence depending on the situation: please observe all safety precautions in the manual.
Caution: Important precautions for tool setup, operation and maintenance.

2
IMPORTANT SAFETY
INSTRUCTIONS
When using the tool, please observe the safety
precautions below to prevent possible accident or
injury.
GENERAL: TOOLS
WARNING
TO OPERATORS
●Wear proper clothing for the type of work being
done.
Take care so that clothing, ties, hair, etc. will not
become entangled with the moving parts. If items
become entangled, it will cause the operator to be
pulled towards the tool and lead to possible cause of
accident or injury.
●Always wear suitable eye protection.
Remember, regular glasses are not safety glasses.
The lenses are only shock resistant, which will not
give you sufficient eye protection you may need in
your working environment.
●Always wear suitable hearing protection.
●Wear respiratory protective equipment (PPE).
Wear respiratory protective equipment (PPE) when
working in an environment where dust particles are
generated in operation.
●Always wear protective gloves for protection of
hands from vibration, shock and burns.
●Avoid working posture that is too stressful.
Always ensure a firm footing and well balanced
posture.
●Do not operate the tool if you are too tired.
●Never touch any moving parts of the tool when
running.
ABOUT WORK AREA
●Keep the work area clean.
Cluttered work areas (e.g. workbench) invite
accidents.
●Carefully select the work area.
Do not expose the tool to rain.
Do not use the tool in a wet or soaked area.
See that the work area is adequately illuminated.
●Never work near inflammable liquid or in a
potentially explosive atmosphere.
●Keep children away from the work area.
Keep children and unauthorized people away from
the work area to avoid accident or injury.
BEFORE OPERATION
●Inspect tool before use.
Before using, check that screws are securely
tightened, that any protective cover or guard is
securely in place and other parts are free from
damage, and that the tool runs as it should.
Check that moving parts are properly adjusted for
positioning and tightened, that parts are free from
damage and properly mounted, and that all other
parts are in good condition for normal operation.
Should you find any damage to the protective
cover or other part, replace it in accordance with
the Operation Manual. If there are no instructions
in the Manual, please contact the sales agent
through which you have purchased your tool or an
authorized dealer near you for repair.
Likewise, if a switch failure occurs, contact sales
agent through which you have purchased your tool
or an authorized dealer near you for repair.
Do not use the tool if it does not start or stop with
the start/stop switch.
●Securely mount cutter
An improperly mounted cutter may fly out, causing
possible damage to the tool or injury to the operator.
●Always remove spanner, wrench, etc., once
adjustment has been made with them.
●Use a tool appropriate for the application.
Avoid heavy-duty application that is beyond the
capacity of the tool.
●Do not use the tool for purposes other than what
it is designed for.
●Do not abuse tool.
Use the tool in accordance with the specifications:
you’ll get the most out of it while ensuring safety.
●Securely fasten workpiece in place.
Use a vice or clamp to securely fasten the workpiece in
place. It is much safer this way than holding it in your
hand, allowing you to operate the tool with both hands.
ABOUT HANDLING
●How to store tool.
When the tool is not used, store it in a dry area and
out of reach of children.
●How to carry tool.
Do not touch the start switch while the tool is being
carried.
●Do not leave the tool unattended while it is
running.
Turn off the start switch and disconnect the tool from
power source. Do not leave the work area until the
tool comes to a complete stop.

3
MAINTENANCE/SERVICE
●Do not take apart or modify tool.
Disassembly or modification carried out without
the supervision of a qualified or authorized service
engineer could result in an accident or injury.
●Inspect cutting tool and accessories, etc.
Always check to see that the cutting tool and
accessories, etc. are in good operating condition
without damage or deterioration before you mount
them on the tool. Should you find any damage to
an accessory or part, please contact sales agent
through which you have purchased your tool or an
authorized dealer near you for repair.
●Check parts for damage.
When you have found damage to the accessory
or other part, carefully check the damaged part to
determine the extent of influence it has upon the
functions of the tool – that is, determine whether it
can still perform its normal functions.
Check to see that the linkage of the moving parts
is OK, that all parts are OK without damage,
that they are properly mounted, and that the tool
functions normally. Should you find any damage
to an accessory or part that may hamper proper
functioning of the tool, please contact sales agent
through which you have purchased your tool or an
authorized dealer near you for repair.
●Have your tool repaired at an authorized Nitto
Service Center.
For repair or parts replacement, please contact the
sales agent through which you have purchased your
tool or an authorized dealer near you.
●Use only Nitto genuine parts.
Use of improper parts may result in serious accident.
To obtain a Nitto genuine part, consult this Manual
or contact the sales agent from which you have
purchased your tool directly.
●Do not detach label or nameplate from tool.
When a label/nameplate gets damaged, worn or
becomes missing, contact the sales agent through
which you have purchased your tool or Nitto Kohki
Co. Ltd, directly for a replacement.
DISPOSAL
When a tool is taken permanently out of service, it is
advised that the tool is disassembled, degreased and
parts separated by material and recycled locally in the
appropriate manner.
GENERAL: POWER
TOOLS
WARNING
●Always use power source per specifications on
the nameplate.
●Never connect the earthing conductor to a gas
Pipe: if you do so explosion may result.
●Check to see that there is no abnormality in
earth- clipping or earthing conductor.
Conduct continuity check between the earth clip
and a metal portion of the machine with a tester or
insulation resistance tester, if you have one. Wiring
connections involving the installation of earth bar
or plate into the ground will call for the expertise
of a qualified electrician. Please contact your local
electrical contractor.
●Don’t abuse cord.
Don’t carry tool with a cord in your hands; don’t pull
a cord to disconnect it from the socket. Don’t give
damage to cord by abusive use, such as, reworking,
forced bending, exposure to heat, pulling, twisting,
bundling, application of weight, pinching, hanging
from metal hardware, etc.
●Before using the tool, ensure that ground-fault
circuit interrupter for electrical shock guard is
installed in the power source to which the tool
will be connected, as required by the Ordinance
on Labor Safety and Hygiene and/or the
Technical Standard for Electrical Installation.
●Avoid abrupt, unintentional start.
Before connecting a power supply plug to power
source, make sure that the switch is turned off.
●Turn off the switch and disconnect the power
supply plug from power source before setting
up for operation or getting down to inspection or
maintenance work.
●Do not replace the supply cord.
When replacing the supply cord, please contact the
sales agent through which you have purchased your
tool or an authorized dealer near you.

4
INSTRUCTIONS FOR
THIS TOOL
About Your Tool
WARNING
●Use of power is limited to the power source
specified by the rating plate.
●Before using the tool, make sure the power
source to which it will be connected is fitted
with an earth leakage breaker to prevent electric
shock.
●Extension cord should be selected after ensuring
the diameter is compatible with the length of the
extension.
Beware of extremely long power cord (particularly
wound up thin cords) as they may cause drops in
voltage which weaken the magnetism, adversely
affecting the performance and function of the unit.
Do not share the extension cord with any other
electric machine tools.
Extension Cord
Max. Length Nominal cross-sectional area
10 m 1.25 mm2or more
15 m 2.00 mm2or more
30 m 3.50 mm2or more
●When performing maintenance, inspection,
replacement or adjustment of parts, make sure
to disconnect the attachment plug from the
receptacle.
●To replace the Indexable Inserts after using,
do not touch with bare hands as the Indexable
Inserts and Holders are heated at high
temperature.
●Use our original Indexable Insert.
●Do not use the worn or damaged Indexable
Insert.
1 USAGE
This is a hand held electric tool for chamfering of mild
steel (SS400) with the Indexable Inserts.
2 CHECK THE CONTENTS OF THE PACKAGE
Check the contents and make sure that the tool does
not have any damage which may have occurred
during transportation. The contents should correspond
to the list as follows. In case of damage/missing
parts, please contact the sales agent from whom you
purchased the tool.
Package Contents Qty check
HAND BEVELER HB-15B 1 set
Indexable Insert 12.7 Ass’y(12pcs. / Set) 1 set
Roller Bracket Ass’y 1 set
Hex. Socket Screw Key 4 1
Hex. Socket Screw Key 5 1
Hex. Socket Screw Key 6 1
Spanner 24 x 27 1
Hook Spanner 25 x 28 1
T Wrench Key 1
Spacer A 1
Spacer B 1
Plate B 1
Instruction Manual 1
Declaration of Conformity 1
3 PREPARATIONS
WARNING
●Be sure to turn the switch OFF and remove the
power plug from power supply whenever setting
up the tool.
3-1. How to Adjust Chamfering Levels
(1) Loosen the Clamp Lever. (Fig.1) Move the Clamp
Lever to a convenient position when a spline is
used. Move it to a place where it will not obstruct
work after use.
(2) Move the Base Line to the desired location on
the Scale Plate by operating the grip so that the
specified chamfering levels are obtained.
(3) Perform firm locking by the Clamp Lever on
completion of adjustment, and turn the Clamp
Lever to a position where the operation is not
obstructed.
* The Clamp Lever has been fixed at an arbitrary
position when turned and lifted.
Clamp Lever
Scale Plate
Base Line
Fig. 1
(4) Suggestion for performing major chamfering.
Carry out chamfering gradually with repeated
actions rather than attempting to chamfer every
thing at one time. This reduces the labor required
as well as the Indexable Inserts wear.

5
Chamfering levels Work criteria
7C 7C 1 time
10C 7C →10C 2 times in total
15C 7C →10C →12C →15C
4 times in total
Table.1
The Scale Plate is for reference only. If accurate
chamfering is required, set the tool at a chamfering
level about 0.5 smaller than the desired one.
Try a test cut. Then adjust the tool for accurate
chamfering.
3-2. How to Adjust Chamfering Angle
(1) Loosen Hex. Socket Head Bolt 6 x 25 on Plate
Guide located on both sides of the body. (Fig.2)
010 20
Hex.Socket Head
Bolt 6 ×25
Plate A
Plate C
Plate Guide
Scale
Guide Pin
Fig. 2
(2) Hold the Plates and set the Scale of the Plate
Guide at the desired angle (pointed at by the
Guide Pin)
(3) Fix the Plate Guide in position by tightening the
Hex. Socket Head Bolt 6 x 25.
The tool has the limit of chamfering width which
depends on a chamfering angle. (Fig.3, Table.2)
α
A
C
B
R
Fig. 3
Chamfering Angle αABC
45° 15 15 21
30° 9 15.5 18
15° 4 15.4 16
Table.2
3-3. Use of Spacers A and B
When Spacers A and B included in the accessories
are mounted as shown in Fig.4, chamfering 7C or
less can be performed using six “Indexable Insert
12.7”.
* If the setting is made in this manner, it is not
possible to perform chamfering of more than 7C.
Fig. 4
Motor
Spacer B
Key
Spacer A
Adapter
Holder B
Nut for Roller
Bearing AN03
3-4. Chamfering procedure for a column
Replace Plate C attached to the body with Plate B
(included in the accessories).
Mount the Roller Bracket to the Plate B using a Hex.
Socket Head Bolt 8 x 30 as shown in Fig.5 and then
adjust dimension A (Fig.6).
Chamfering of rounded portions can be performed to
accurate finish.
Fig. 5
Plate A
Dimension A
Adjust
Roller Bracket Hex.Socket Head Bolt 8 ×30
Plate B
Dimension A
Column
R
Fig. 6

6
(2) Loosen Hex. Socket Head Set Screw 6x8 with a
Wrench. Take out an Indexable Insert.
Fig.9
Butting portion
Holder
Hex.Socket Head Set Screw
6×8
Indexable Insert
(3) Remove chips. Insert the Indexable Insert into
the Holder, paying attention to the shape of the
Indexable Insert. Fix the Indexable Insert with the
Hex. Socket Head Set Screw 6 x 8. (Fig.10)
Fig.10
Surface Plate or Flat Plate
Holder Hex.Socket Head Set
Screw 6 ×8
Indexable Insert
Recognize that the downward edges of the
Indexable Inserts are exact on the flat surface of the
Holder. Bad alignment may cause breakage of the
Indexable Inserts. (Fig.11)
Fig.11
Bad example
5-2. How to Replace the Holder
(1) Separate the Motor Unit from the body as shown
in Fig.12. (Remove the Clamp Lever and then
remove Hex. Socket Head Bolt 8 x 30 on the back
side for this purpose.)
4 HOW TO OPERATE THE TOOL
WARNING
●Always wear suitable eye protection, suitable
hearing protection, protective gloves, and
respiratory protective equipment.
4-1. Start and Stop
CAUTION
●Always be sure the unit is in the OFF position
before plugging the power cord into an outlet.
Placing the switch in the ON position initiates
operation. Turn the switch to the OFF side to stop
operation.
4-2. Feeding Speed
Operate it at an appropriate speed (30cm/min for
mild steel 7C chamfering). If the work surface is
burnt, it means the feeding speed is not appropriate.
Operation at high feeding speed or with shock will
cause damage to the Indexable Inserts or the tool.
If cutting chips are burnt at the appropriate speed,
visually check the wear condition of the Indexable
Inserts and replace it with a new one if worn.
4-3. How to Operation
Hold T Handle and Sub Handle tightly.
Press the tool to a workpiece slowly and move with
arrow direction shown in the rating plate.
5 HOW TO REPLACE THE INDEXABLE
INSERTS AND THE HOLDERS
WARNING
●Be sure to turn the switch OFF and remove
the power plug from power supply whenever
replacing the Indexable Inserts and the Holders.
●The Indexable Inserts and the Holders are much
heated right after the operation. Always wear gloves
in handling the Indexable Insert and the Holder.
5-1. How to Replace the Indexable Inserts
(1) Remove Hex. Socket Head Bolt (Fig.7) and pull it
out to the direction as shown of the arrow. (Fig.8)
Hex.Socket Head Bolt
6×25
Plate Guide
Fig. 7 Fig. 8

7
Fig.12
Clamp LeverMoter
Body
(2) Remove the Nuts for Roller Bearing shown in
Fig.13 using the Spanner and Hook Spanner
included in the accessories, and then extract the
Holders A and B in the direction of the arrow.
(3) Mount the Holders A and B in the proper direction
(so that projected portions of the Holders A and B
face each other), and then firmly tighten the Nuts
for Roller Bearing using a Hook Spanner. (Fig.13)
Fig.13
Nut for Roller Bearing AN03
Adapter
Motor
Mount so that some
clearance is left
Holder A
Holder B
6 MAINTENANCE AND INSPECTION
WARNING
●Be sure to turn the switch OFF and remove
the power plug from power supply during
maintenance and inspection.
●Perform periodic inspection to check for
loosening of the attachment screws for each
part. Retighten loose screws as required.
7 CONDITION FOR USE
Burn-out chips suggest that either the feed speed
is too slow or the Indexable Inserts have worn-out.
Change the cutting conditions or check the conditions
of the Indexable Inserts.
8 ORDERING SERVICE PARTS
For further operational and handling information or
for replacement of parts and components, contact the
company from whom you purchased the tool or an
authorized dealer.
In ordering parts and components, give each part
number, part name and quantity required.
Use only NITTO genuine parts.
9 OPTIONAL PARTS
Part No. Description Qty
TA9A093 Indexable Insert 12.7 Ass’y
(12pcs./set) 1 set
TA9A728 Plate Ass’y for Pipe ※1 set
※For Pipe Out Dia. 125mm – 800mm
Mount so that some clearance
is left

8
10 EXPLODED DIAGRAM : HB-15B
WARNING
This diagram is for your reference only. Do not attempt to service or repair the Tool. Do not take the Tool apart.
Contact an authorized Nitto dealer for all service and repair of the Tool. Improper service and repair can cause
accidents and service injuries. Never attempt to modify the Tool. Never attempt service or repair the Tool yourself.
The parts numbers with ( ) are included in the Ass'y parts written above them.
Accessories
No. Part No. Description Qty Price
30 TQ03353
Hex. Socket Head Cap Screw
10 x 30 with Spring Washer 1
31 TB02203 Motor Ass’y (220 V- 240 V) 1 set
32 TB02204 Motor Ass’y (110 V- 120 V) 1 set
TP16613 T Wrench Key 1
TP01939 Hex. Socket Screw Key 4 1
TP04004 Hex. Socket Screw Key 5 1
TP00170 Hex. Socket Screw Key 6 1
TP04309 Spanner 24 x 27 1
TP16410 Hook Spanner 25 - 28 1
TQ00206 Plate B 1
TA99834 Roller Bracket Ass’y 1 set
TP16600 Spacer A 1
TP16601 Spacer B 1
TA9A093
Indexable Insert 12.7(12pcs. / Set) 1 set
TQ13535 Instruction Manual 1
TQ13531 Declaration of Conformity 1
No. Part No. Description Qty Price
2 TP04157 Nut for Roller Bearing AN03 2
3 TA9A066 Holder A Ass’y 1 set
4 TA9A067 Holder B Ass’y 1 set
5 (TP04689)
Hex. Socket Head set Screw 6 x 8 12
6 TA9A093 Indexeble Insert 12.7(12pcs. / Set) 1 set
7 TQ11091 Adapter 1
8 TQ00208 Hex. Socket Head Screw 6 x 12 8
9 TQ00207 Plate C 1
10 TP16124 Plate Guide 2
11 TQ00205 Plate A 1
12 TP06217 Hex. Socket Head Bolt 6 x 25 4
13 TP00092 Plain Washer M6 4
16 TA9A074 T Handle Ass’y 1 set
17 TP16159 Clamp Lever 1
18 TP08584 Hex. Nut M8 1
19 TP10978 Plain Washer M8 2
20 TP07353
Hex. Socket Head Bolt 8 x 30 1
21 TA99911 Body Sub Ass’y 1 set
22 TA92089 Sub Handle Ass’y 1 set
25 TP16151 Sunk Key 5 x 5 x 36 1
29 TA9A757 Cabtyre Cable Ass’y 1 set

Printed in JAPAN TQ13535-0