Amada HFA-250 User manual

HFA250/400T/TW US-E01-200409
HORIZONTAL BANDSAW
HFA-250/250W/400/400W
(HFA-252T/252TW/407T/407TW)
OPERATOR'S MANUAL

ii
PREFACE Read this manual carefully to obtain a thor-
ough knowledge of machine operation and maintenance.
Be sure to follow the instructions to ensure proper proce-
dures and prevent injuries and accidents. Do not operate
the machine by guesswork. Keep the manual at hand
and refer to it whenever you are not sure of how to perform
any of the procedures.
Printed in Japan
Operator's Manual:
HFA-250/250W/400/400W Horizontal Bandsaw
© 2004 by AMADA CO., LTD.
No part of this publication may be photocopied or otherwise reproduced with-
out the prior written permission of AMADA CO., LTD.

iii
CONTENTS
Safety Rules & Cutting Precautions............................................................vii
Part I Description...........................................................................I-1
Identification of machine parts................................................... I-2
HFA-250 and HFA-250W machines....................................... I-2
HFA-400 and HFA-400W machines....................................... I-4
Specifications............................................................................. I-6
HFA-250 and HFA-250W machines....................................... I-6
HFA-400 and HFA-400W machines...................................... I-10
Sound level............................................................................ I-14
Automatic backgauge function.............................................. I-15
Optional accessories ................................................................ I-16
Part II Installation...........................................................................II-1
Location .....................................................................................II-2
Carrying .....................................................................................II-4
Cleaning.....................................................................................II-5
Leveling......................................................................................II-6
Removing shipping bracket .......................................................II-7
Supplying hydraulic oil...............................................................II-8
Supplying cutting fluid................................................................II-9
Supplying electric power...........................................................II-10
Connecting power cable........................................................II-11
Checking electrical connections............................................II-12
Installing fire control devices.....................................................II-13
Part III Controls..............................................................................III-1
Machine circuit breaker switch.................................................. III-2
Control panel............................................................................. III-3
Other controls .......................................................................... III-12
Description of displays............................................................. III-17
Contents of displays............................................................. III-19
Initial display ..................................................................... III-19
Station data setup display................................................. III-19
(Continued on next page.)

iv
All station delete confirmation display.............................. III-23
Runout setup display........................................................ III-23
Station delete confirmation display................................... III-24
Setup display.................................................................... III-24
Result display ................................................................... III-25
Daily report display........................................................... III-26
ALARM HISTORY display................................................ III-27
PASSWORD display......................................................... III-27
Part IV Operation ...........................................................................IV-1
Inspection before start of day’s work........................................IV-3
Turning on machine..................................................................IV-3
Selecting saw blade.................................................................. IV-3
Unfolding and folding saw blade............................................... IV-4
Unfolding saw blade..............................................................IV-4
Folding saw blade................................................................. IV-6
Installing saw blade ..................................................................IV-8
Adjusting position of wire brush............................................... IV-11
Adjusting position of movable saw blade guide.......................IV-12
Loading and positioning work.................................................. IV-13
Loading work........................................................................IV-13
Positioning work...................................................................IV-15
Positioning remnant for cutting further .............................IV-17
Semiautomatic positioning function ..................................... IV-18
Setting cutoff length..........................................................IV-18
Semiautomatic positioning................................................ IV-19
Adjusting cutting fluid flow rate................................................ IV-21
Running in new saw blade.......................................................IV-22
Stack cutting............................................................................IV-23
Stacking workpieces ............................................................IV-23
Using multi-vises (optional).................................................. IV-24
Runout detector (optional)....................................................... IV-27
Setting runout tolerances..................................................... IV-27
Handling cutting data............................................................... IV-29
Entering and storing cutting data ......................................... IV-29
Checking cutting data (calling station)................................. IV-33
Changing cutting data.......................................................... IV-33
Canceling cutting data.......................................................... IV-33
Conditions for execution of cutting data............................... IV-34

v
Head-end positioning function (optional).................................IV-35
Setting cutoff length..............................................................IV-36
Head-end positioning operation...........................................IV-37
Going from head-end positioning operation to
automatic operation..............................................................IV-39
Operation.................................................................................IV-40
Manual operation..................................................................IV-40
Starting cutting..................................................................IV-40
Ending cutting...................................................................IV-41
Interrupting or stopping cutting.........................................IV-41
Automatic operation .............................................................IV-41
Before starting automatic operation..................................IV-41
Starting cutting without trimming head end ......................IV-42
Starting cutting after trimming head end...........................IV-42
Ending automatic operation..............................................IV-43
Interrupting automatic operation.......................................IV-43
Stopping automatic operation after detection of
excessive runout...............................................................IV-43
Stopping automatic operation...........................................IV-44
Interrupt station function.......................................................IV-45
Inserting interrupt station in current station ......................IV-46
Inserting interrupt station between stations to
be executed......................................................................IV-48
Inserting interrupt station as first station of
automatic operation during head-end trimming................IV-50
Self-diagnostic function........................................................IV-52
Ending operation......................................................................IV-53
Part V Troubleshooting .................................................................V-1
Operating troubles .....................................................................V-2
Alarm code list ...........................................................................V-6
Part VI Maintenance.......................................................................VI-1
Checking before start of day’s work..........................................VI-2
Periodic maintenance ...............................................................VI-4
Every day ..............................................................................VI-4
Cleaning.............................................................................VI-4
Lubrication.........................................................................VI-4
(Continued on next page.)

vi
Every month..........................................................................VI-5
Cleaning ............................................................................VI-5
Lubrication......................................................................... VI-6
First three months (or 500 hours) .........................................VI-8
Changing speed reducer oil (for first time)........................ VI-8
Every six months...................................................................VI-8
Changing cutting fluid........................................................VI-8
Changing hydraulic oil....................................................... VI-9
Checking and changing backup rollers ............................ VI-10
Checking and changing guide rollers ............................... VI-10
Every year............................................................................ VI-11
Changing speed reducer oil
(for second and subsequent times).................................. VI-11
Appendix A Options................................................................................A-1
Multi-vises..................................................................................A-2
Vise pressure control valves......................................................A-2
Runout detector (factory option)........................................................A-2
Roller table.................................................................................A-3
Roller stand................................................................................A-3
Head-end positioning function (factory option)..........................A-3
Rotating beacon lights (factory option)......................................A-4
Wheel cover open limit switch (factory option)..........................A-4
Appendix B Safety Data Sheets.............................................................B-1
Shell Tellus Oil C32....................................................................B-2
Esso Lithtan EP2.......................................................................B-6
Amada Gear Oil EP320............................................................B-10

vii
Safety Rules
&
Cutting Precautions
SAFETY RULES
Observe these safety rules to prevent injuries and accidents. (The illustrations
may be partly different from the actual machine in detail.)
a) Use roller tables on both front
and rear sides of the machine
when cutting long work. It is
dangerous if the work falls off
the machine when the roller
tables are not used.
b) Never wear gloves and loose
clothing when operating the
machine. It is dangerous if
they are caught in the running
machine.

viii
c) Use a water-soluble cutting
fluid on this machine. Oil-
based cutting fluids may emit
smoke or catch fire, depending
on the condition of their use
(such as insufficient flow rate).
When using an oil-based cutting
fluid, strictly observe the precautions
described in “Cutting Method” on
page xv.
d) Be sure to prohibit any use of
fire in the shop, and install a
fire extinguisher or other fire
control device near the
machine when cutting
titanium, magnesium, or any
other material that produces
flammable chips. Never
leave the machine unattended
when cutting flammable
materials.
e) Never cut on this machine
carbon or any other material
that produces and disperses
explosive dust. Sparks from
motors and other machine
parts may ignite and explode
the air-borne dust.
The machine needs special
measures for cutting explosive
materials (for details, refer to page
xvi).

ix
f) Be sure to confirm that the
area around the machine is
cleared of people and
obstacles every time before
starting the machine or
operation.
g) Never start the saw blade
unless it has been confirmed
that the work is firmly clamped.
If the work cannot be securely
clamped with the vise, be sure
to clamp it using jigs. It is
dangerous if the work is
clamped loosely and forced
out of the vise during cutting.
h) When cutting a thin or short
piece from the work, take
preventive measures to keep
the cut piece from falling. It is
dangerous if the cut piece falls
or rolls.

x
i) Never operate the machine
with the wheel cover, the saw
blade cover, and other covers
removed or opened. It is
dangerous if your hands or
clothing are caught in the
running machine.
j) Never take your eyes off the
machine or lean on the
machine during operation.
Be ready for a situation that
demands immediate attention
to prevent an accident.
k) Never touch the running
saw blade or chip
conveyor. It is
dangerous if your hands
or clothing are caught in
the running saw blade or
chip conveyor.