Magnum Industrial MI-93850 User manual

MODEL NO.: MI-93850
SPECIFICATIONS
Speeds: 32 ~ 96 MPM
Motor: 5 HP
Capacity: 90°● 460MM ■ 460x460MM ▄ 440x600MM
45°● 445MM ■ 445x445MM
60°● 295MM ■ 295x295MM
Blade: 1.61〞×0.051〞×220〞
(41mm×1.3mm×5600mm)
Dimension: L114〞×W63〞xH66〞
(L:2900mm×W:1600mmxH:1680mm)
Blade Wheels: 18″ (457MM) Diameter
Shipping Weight: 1460KGS
WARNING
670 630 470
510
550
590
190
230
270
310
350
390
430

TABLE OF CONTENTS
1ACCIDENT PREVENTION AND SAFETY REGULATION.................................................................1
1.1 Advice for the operator........................................................................................................................1
1.2 The electrical equipment according to European Standard" CENELEC EN 60204-1".......................1
1.3 Warning labels ....................................................................................................................................1
1.4 Emergencies according to European Standard “CENELEC EN 60204-1”.........................................1
2MACHINE TRANSPORTATION AND INSTALLATION......................................................................2
2.1 Machine dimensions ...........................................................................................................................2
2.2 Transporting the machine ...................................................................................................................2
2.3 Minimum requirements for housing the machine................................................................................2
2.4 Installing the rear coolant return tray ..................................................................................................2
2.5 Installing three channeled L-bracket...................................................................................................2
2.6 Securing the front / rear tray ...............................................................................................................2
2.7 Securing the mobile coolant tray.........................................................................................................3
2.8 Securing to foundation........................................................................................................................3
2.9 Leveling the machine..........................................................................................................................3
2.10 Deactivation of machine......................................................................................................................3
3DESCRIPTION OF MACHINE PARTS...............................................................................................3
3.1 Control panel.......................................................................................................................................3
3.2 Human-Machine Interface Operation..................................................................................................4
3.3 Machine Error Notices.........................................................................................................................4
3.4 The saw bow.......................................................................................................................................5
3.5 The vise system ..................................................................................................................................5
3.6 The base .............................................................................................................................................5
3.7 Chip tray..............................................................................................................................................5
3.8 Blade broken micro switch..................................................................................................................5
3.9 Chip brush...........................................................................................................................................5
3.10 Speed change hand wheel .................................................................................................................6
3.11 Attached coolant device......................................................................................................................6
3.12 Adjustable guide post with linear guide adjustments..........................................................................6
3.13 Adjustable tension spring....................................................................................................................6
3.14 Setting the saw blade height...............................................................................................................7
4SET UP AND PRE-OPERATIONS.....................................................................................................7
4.1 Adjusting the tungsten carbide guides................................................................................................7
4.2 Thrust Roller Adjustment ....................................................................................................................7
4.3 Adjusting the cutting precision ............................................................................................................7
4.4 Blade tracking adjustment (Manual blade tension type).....................................................................7
4.5 Change the saw blade onto the drive wheel and flywheel..................................................................8
4.6 Hydraulic vise pressure (optional).......................................................................................................8
5OPERATION PREPARATIONS..........................................................................................................9
5.1 Positioning and using the vise ............................................................................................................9
5.2 Angle cutting .......................................................................................................................................9
5.3 Adjusting the blade speed...................................................................................................................9
5.4 Changing the transmission belt.........................................................................................................10
5.5 Changing the blade (Manual blade tension type).............................................................................10
6OPERATION CYCLE....................................................................................................................... 10
6.1 Operation cycle .................................................................................................................................10
6.2 Stopping or emergency stopping......................................................................................................11
6.3 Automatic shutoff during machine operation ....................................................................................11
7ROUTINE AND SPECIAL MAINTENANCE..................................................................................... 11
7.1 Daily maintenance.............................................................................................................................11
7.2 Weekly maintenance.........................................................................................................................11
7.3 Monthly maintenance........................................................................................................................11
7.4 Six-monthly maintenance..................................................................................................................12
7.5 Oils for lubricating coolant.................................................................................................................12
7.6 Oil disposal........................................................................................................................................12
7.7 Special maintenance.........................................................................................................................12
7.8 Changing gear oil..............................................................................................................................12
7.9 Change guide roller...........................................................................................................................12
8TECHNICAL CHARACTERISTICS.................................................................................................. 13
8.1 Table of cutting capacity and technical details .................................................................................13
8.2 Noise Tests .......................................................................................................................................13
9CIRCUIT DIAGRAM......................................................................................................................... 14
10 PART LIST & EXPLOSION DRAWINGS......................................................................................... 16

1
1 ACCIDENT PREVENTION AND SAFETY
REGULATION
This machine has been designed to comply with
national and community accident- prevention
regulations. Improper use and/or tampering with the
safety devices will relieve the manufacturer of all
responsibility.
1.1 Advice for the operator
-Check, the line voltage is the same as the voltage
required by the machine’s motor.
-Check the efficiency of your electric supply and
grounding system; connect the power cable of the
machine to the socket and the ground lead
(yellow- green in color) to the grounding system.
-When the machine is in suspended mode (or
stopped) the blade must not move.
-Only the blade section used for cutting must be
kept unprotected. To remove guards to expose
more of the cutting blade adjust the blade guides.
-It is forbidden to use the machine without its
shields.
-Always disconnect the machine from the power
socket before blade change or carrying out any
maintenance job, even in the case of abnormal
machine operation.
-Always wear suitable eye protection.
-Never put your hands or arms into the cutting
area while the machine is operating.
-Do not shift the machine while it is cutting.
-Do not wear loose clothing like: shirts with
sleeves that are too long, gloves that are too big,
bracelets, chains or any other object that could
get caught in the machine during operation. Tie
back long hair.
-Keep the area free of miscellaneous object; i.e.
equipment, tools, etc…
-Perform only one operation at a time. Never have
several objects in your hands at the same time.
Keep your hands as clean as possible.
-All internal operations, maintenance or repairs,
must be performed in a well-lit area or where
there is sufficient light from extra sources to avoid
the risk of accidents.
1.2 The electrical equipment according to
European Standard" CENELEC EN 60204-1"
-The electrical equipment ensures protection
against electric shock as a result of direct or
indirect contact. The active parts of this
equipment are housed in a box to which access is
limited by screws that can only be removed with a
special tool; the parts are fed with alternating
current as low voltage (24V). The equipment is
protected against splashes of water and dust.
-Protection of the system against short circuits is
ensured by means of rapid fuses and grounding.
In the event of a motor overload, protection is
provided by a thermal probe.
-In the event of a power cut, the specific start-up
button must be reset.
-The machine has been tested in conformity with
point 20 of EN 60204.
1.3 Warning labels
Replace warning labels if they become obscured or
removed.
-Keep hands and other body parts away from a
running blade.
-Do not open the blade cover while machine is
running.
-Do not store combustible materials near or
around machine.
-Always wear approved safety glasses/face
shields while using this machine.
-Keep machine guards in place at all times.
-Do not wear gloves.
-Remove loose clothing and confine long hair.
-Keep the work area clean and free miscellaneous
objects.
1.4 Emergencies according to European
Standard “CENELEC EN 60204-1”
-In the event of incorrect operation or a danger
condition, the machine may be stopped
immediately by pressing the red mushroom
shaped button.
NOTE: Resetting of machine operation after each
emergency stop requires resetting the emergency
stop button.

2
2 MACHINE TRANSPORTATION AND
INSTALLATION
2.1 Machine dimensions
2.2 Transporting the machine
Unpack your machine carefully, and use a crane or
forklift to set it in position. If a crane is used to lift
the machine, attach the lifting cable carefully to the
machine. Sufficient space should be left around the
machine to allow safe handling of materials,
inspection, and maintenance operations. Take
precautions to choose a location that will keep the
machine free of vibration and dust caused by other
machinery.
2.3 Minimum requirements for housing the
machine
-Main voltage and frequency must comply with the
machine’s motor requirements.
-Environment temperature should fall within (-10ºC
to + 50 ºC).
-Relative humidity cannot be over 90%.
2.4 Installing the rear coolant return tray
The rear coolant-return tray must be installed after
the machine is set in place. Install the coolant return
trays first.
2.5 Installing three channeled L-bracket
Install three channeled L-bracket to the back of the
machine stand. Attaching the brackets requires 6
hex head bolt, 6 spring washers 6 washers, and 6
nuts.
-Place a spring washer and washer on each hex
head bolt.
-Face the long side of the bracket up.
-Align the holes of short side of the bracket to the
machine panel’s holes.
-Place the 2 hex head bolts and their washers
through each bracket and machine panel.
-Use a nut on the inside of the machine stand to
secure each hex head bolt.
NOTE: Short bracket on the left side.
2.6 Securing the front / rear tray
Attaching the trays requires 6 hex head bolt, 6
spring washers, 6 washers, and 6 nuts.
Bolt
point

3
-Arrange the tray rims to facing up and away from
the machine.
-Place the rear return tray onto brackets at the
back of the machine.
-Align the holes of the rear tray and the six-
channeled L-brackets.
-Place 6 hex head bolts through the holes of the
trays and brackets.
-Secure each hex head bolts with a washer, spring
washer, and hex nut.
2.7 Securing the mobile coolant tray
They are two mobile coolant trays can be moved
and used in miter cutting on front and rear side to
prevent coolant spray on to the floor.
2.8 Securing to foundation
Position the machine on a flat and level foundation
of reinforced concrete. Level machine and anchor it
to the foundation with anchor bolts. Maintain a
minimum distance of 800mm from the rear of the
machine to the wall. Position the anchors using
screws and expansion plugs or tie rods sunk in
cement.
2.9 Leveling the machine
The operating accuracy of all precision machinery
depends on the accuracy of the installation of the
machine. Manufacturing tolerance of the machine
can only be guaranteed if the machine is firmly and
properly installed. Once the machine is lowered on
the prepared foundation, machinist levels should be
used alternately on the vice slide plates and work
feed table, adjust the left to right and front to back
level of the machine with leveling bolts.
- When leveling left to right level, adjust left side to
be approximately 3mm higher than the level of the
right side. This will provide proper return of the
cutting fluid. After proper leveling of the machine,
use anchor bolts to secure to the foundation.
Caution: All leveling bolts should support the weight
the machine evenly.
2.10 Deactivation of machine
If the machine is to be out of use for a long period, it
is advisable to proceed as follows:
1) Disconnect from the power supply
2) Loosen the tension on the blade
3) Release the bow return spring
4) Empty the coolant tank
5) Carefully clean and grease the machine
6) If necessary, cover the machine
Dismantling (due to deterioration and / or
obsolescence)
As a General Rule,
If the machine is to be permanently demolished
and/or scrapped, divide the material to be disposed
of according to type and composition, as follows:
1) Cast iron or ferrous materials, composed of
metal alone, are secondary raw materials, so
they may be taken to an iron foundry for re-
smelting after having removed the contents
(classified in point 3).
2) Electrical components, including the cable and
electronic material (magnetic cards, etc.), fall
within the category of material classified as being
assimilated to urban waste according to the laws
of your local, state, or federal government, so
they may be set aside for collection by the public
waste disposal service;
3) Old mineral and synthetic and/or mixed oils,
emulsified oils and greases are considered
hazardous or special refuse, so they must be
collected, transported and disposed of at a
special waste disposal service.
NOTE: The standards and legislation concerning
refuse is in a constant state of evolution, therefore is
subject to changes. The user must keep informed of
the regulations at the time of disposal as these may
differ from those described above.
3 DESCRIPTION OF MACHINE PARTS
3.1 Control panel
Mobile coolant tray
A
G
B
C
D
E
F
H

4
A. Cutting feed rate –Adjust the rate of cutting of
the saw bow. The down-feed rate adjust to high
speed (5-10) before the saw frame descend,
then when approaching the workpiece according
to the different materials is to adjust the speed to
2-4.
B. Emergency stop button –Press to stop all
machine functions.
C. Main power indicator light –Indicates that main
power is active.
D. Hydraulic start switch –Actives hydraulic power.
E. Stop blade cutting switch –Press to stop cutting
cycle.
F. Cycle start switch –Press to begin cutting
operation.
G. Human-Machine Interface.
H. Main connect switch –Main power.
3.2 Human-Machine Interface Operation
F1: Main Menu
A. Operation mode switch –Selects either
automatic or manual operation mode.
➢Manual operation mode –Press switch A until
the mode shows Manual.
➢Automatic operation mode –Press switch A until
the mode shows Automatic.
B. Coolant start switch –Press to start the coolant
pump and begins coolant flow, the button light
will on. Press again the coolant pump will off.
C. Bow Up Button and stop cycle cutting –Press to
raise the saw bow and stops the machine's
operation without resetting.
D. Bow down switch –Press to lower the saw bow.
E. Vise Open Button –Press and hold to adjust the
vise open width. When saw bow is not at the
safe height limit, the vise will open 5mm at every
one touch.
F. Vise Close Button –Press to approach or clamp
the work-piece.
G. System parameter –A password is required to
enter into this section. After the password is
entered, parameter setting will appear.
H. Angle readout –The readout shows the current
angle, which should match the user's setting
angle.
I. Shows machine executive steps and wrong
procedure and how to solve it.
F2: Language Option
Touch one of languages and press Back to front
page to return to the main menu in your desired
language.
3.3 Machine Error Notices
The Human-Machine Interface will show error
notices when machine malfunction occurs.
They will display the probable cause and possible
remedies.
Follow the remedies to resolve the problem and
press reset button to remove the Error Notice.
Above is a map showing the number and refer
location of various malfunctions.
- Malfunctions display and remedy.
○
1Vise pressure switch unusual
-Adjust pressure critical value.
○
2Blade tension unusual
-Check blade broken or fallen.

5
-Check blade over length.
-Check or replace limit switch.
○
3Lower limit unusual
-Check or replace limit switch.
○
4Blade wheel cover open
-Check or replace safety switch.
-Close blade wheel cover.
○
5Blade motor unusual
-Reset overload relay FS1.
-Check motor current.
-Check input power voltage.
○
6Hydraulic motor unusual
-Reset overload relay FS2.
-Check motor current
-Check input power voltage
○
7Coolant motor unusual
-Reset overload relay FS3.
-Check motor current.
-Check input power voltage.
-Clean stuck chips in turbine.
○
8Emergency stop button is pressed
-Release emergency stop button.
○
9Safety module unusual
-Check or replace relay K20.
○
10 Upper limit unusual
-Check or replace limit switch.
3.4 The saw bow
Machine parts consisting of drive members (gear
motor, variable speed wheel, and flywheels), blade
guide post (blade carbide guides, blade guard) and
saw bow tension spring of tool.
3.5 The vise system
A hydraulic vise is used for clamping work material.
Each of the vises has a miter slot, which is good for
the right or left side’s angle cutting to 60°.
3.6 The base
The base is the structure supporting the saw bow
(the bow pivot point and respective blocking
system), the vises, and containing chip tray and
coolant system.
3.7 Chip tray
When miter cutting, it may require the adjustment of
the chip tray position for capture of chips and
debris.
3.8 Blade broken micro switch
This machine is equipped with automatic power
shut-off safety device to prevent any further
damage when a blade has been broken. There is a
reduction in tension when an adjustment bolt
actuates micro switch’s plunger. To keep the micro
switch in proper contact with the blade’s tension. An
adjustment of the actuator bolt is required.
3.9 Chip brush

6
This model has a powered chip brush driven by an
axle transfer from the drive motor. The chip brush is
designed to clean the blade thus prolonging the life
of the blade.
Adjusting the blade brush
- Disconnect the machine from power.
- Open the drive-side wheel cover.
- Loosen the hex nut (B).
- Use the adjusting setscrew (B) to move the blade
brush (C). Turning counter-clockwise with move
the blade brush (C) closer to the blade, while
turning clockwise with move the blade brush (C)
away from the blade.
- Secure the brush’s (C) position. Tighten the hex
nut (B).
- Close the drive-side wheel cover.
- Reconnect the machine to the power source.
The plastic transfer wheel may also require
adjustment due to periodical wear.
- Disconnect the machine from power.
- Open the drive-side wheel cover.
- Adjust the spring setscrews (A). Turn setscrews
(A) clockwise to bring the plastic transfer wheel (D)
closer to the drive wheel and counter-clockwise to
move away from the drive wheel.
- Close the drive-side wheel cover.
- Reconnect the machine to the power source.
3.10 Speed change hand wheel
This machine equipped with mechanic variable
speed control device allow for variable blade speed.
Adjust the blade speed while the machine is
running. The dial sticking out of the motor cover
(right side) controls the variable speeds between
(32-96MPM / 98-317FPM).
Rotate the governor (A) by following the level (B) in
the scale to get desired speed for cutting the work
piece.
3.11 Attached coolant device
An attached coolant device that is screwed on the
front vise jaw for supply enough coolant to the
cutting material. This device can be unscrewed, and
move to the rear vise jaw for easy both side miter
cutting.
3.12 Adjustable guide post with linear guide
adjustments
The guide posts, adjust horizontally to control the
spacing of the blade guides. Having the blade
exposed to the minimal amount provides better
safety protection and a more accurate cutting by
reducing blade flexing. Linear guide is used on the
blade guide post movement to achieve accurate
positioning and move smoothly.
- Refer to the scale to adjust the distance.
- For most spacing changes, unlock the left guide
post by turning locking handle wheel.
- Grip the posts and move horizontally.
- Lock into position.
3.13 Adjustable tension spring
Adjustable tension spring is used to balance
pressure of saw frame movement and prolong
blade life.
- Reduce the bow weight. Rotate the spring nut
counter clockwise to increase the tension on the
spring.
- Increase the bow weight. Rotate the spring nut (N)
clockwise to reduce the spring tension.
N

7
3.14 Setting the saw blade height
Start the hydraulic power and raise saw bow to the
properly height. Adjust contactor (L) to touch upper
limited saw bow height micro switch (M) manually.
4 SET UP AND PRE-OPERATIONS
4.1 Adjusting the tungsten carbide guides
The blade is guided by the upper ball bearings, side
ball bearings, and tungsten carbide guides.
-When ready to cut the work piece, the carbide
guide must be adjusted by adjusting the screws to
properly compressed blade. The tungsten carbide
blades should touch, but not pinch the blade.
-For moving the blade guide posts or changing
blade, the tungsten carbide guides should be
released by using the adjusting screw.
-In case the blade needs to be replaced, make
sure to always install 1.3mm thick blade.
4.2 Thrust Roller Adjustment
1. Disconnect machine from the power source.
2. Loosen adjusting screw (Z) to release the
tungsten carbide guides.
3. Loosen two hex socket cap screws (X).
4. Move guide seat (Y) up or down until a little
clearance between back of blade and thrust
roller is obtained.
5. Tighten two hex socket cap screws (X).
6. Repeat for other blade guide assembly.
7. Tighten adjusting screw (Z) to release the
tungsten carbide guides.
8. Connect machine to the power source.
4.3 Adjusting the cutting precision
The cutting precision has been set at the factory.
This adjustment should only be accomplished by a
qualified personnel that are familiar with this type of
adjustment.
-Disconnect the machine from power supply.
-Loosen the hex socket cap screws (X) slightly, if
needed.
-Use the setscrews (X1) to adjust the direction of
the guide blocks.
-After adjusting, tighten the adjusting bolts (X).
4.4 Blade tracking adjustment (Manual blade
tension type)
This adjustment must be accomplished by qualified
personnel that are familiar with this type of
adjustment and the dangers associated with it.
Blade tracking has been set at the factory and has
no adjustment required. If a tracking problem
occurs, adjust the machine as follows:
-Raise saw arm to the proper position.
-Locate tracking adjustment screw (V) on the front
of the saw blade, flywheel side.
-Reduce the blade tension a little.
-Turn the tracking adjustment screw (V) to adjust
the saw blade ride.
M
L
Ball bearing
Ball bearing
Tungsten carbide guides
X
Y
Z
X
X1
V

8
-Re-tension the blade tension.
-Connect the machine power to run the blade for
1-2 minutes. Then stop the machine operation.
-Remove the blade guides and open covers to
check the blade tracking
-Close covers, replace the blade guides and
tighten the setscrews.
-If necessary, readjust it again.
4.5 Change the saw blade onto the drive wheel
and flywheel
-Raise the saw bow approximately 6” in height.
-Disconnect from power supply.
-Unlock the latch to open the saw bow cover.
-The ball catches of cover must be buckled to
fixed.
-Loosen the screws to remove both blade guard.
- Turn the two side knobs of carbide guide counter-
clockwise to loosen the carbide guide.
- Turn the blade tension handle counter-clockwise
to fully loosen the flywheel.
-Loosen left blade guide post lock knob to slide
post to the right side as far as possible.
-Remove the old blade from both wheels and out
of each blade guides.
-Place the new saw blade onto the race of the
drive wheel and flywheel.
*Check the cutting direction of the saw blade.
-Insert the saw blade into the rollers of the left and
right blade guide.
-The back edge of the saw blade should make
contact with the flange of the drive and flywheel;
turn clockwise the blade tension handle to tighten
the saw blade, until the blade is properly
tensioned.
-Turn the two side knobs of carbide guide
clockwise to lock the carbide guide.
-Replace the blade guard and tighten the screws.
-Press the cycle start switch on the panel to check
the proper ride of the blade.
-Close all covers and fasten all guards.
4.6 Hydraulic vise pressure (optional)
The hydraulic vise pressure can be monitored and
adjusted by a pressure gauge on the base of the
machine. The normal pressure is set at 35kgs/cm2.
This is good for most solid firm materials. For
softer, hollow, or pipe materials reduce the pressure
to over 25kgs/cm2. Other materials may require
different clamping force. The clamping pressure
may be adjusted by a knob at the base of the
pressure gauge assembly.

9
- Start by pressing the vise close switch
continuously in manual mode to have the vise
clamp onto a work piece.
- Next, unlock the fluted knob (Z) by releasing
fluted lock nut (Z1).
- Turn the fluted knob (Z) counterclockwise to
decrease the pressure, clockwise to increase the
vise pressure.
- Lock the fluted nut (Z1) after adjustment.
5 OPERATION PREPARATIONS
5.1 Positioning and using the vise
When cutting angles, the relocation of the vise is
necessary to prevent the blade from cutting the
hydraulic vise.
The hydraulic vise operates automatically and can
be controlled using the control panel. Use the vise
open and vise close switch to open and close the
vise. Power must be active. Hydraulics must be
active.
- Press the hydraulic control start switch button to
raise the saw bow up to the vices.
- Press the vise open button to open the vices.
- At the bottom of cutting table there is a handle(A)
to be loosened.
- Slide the detachable retrieval table to remove it.
- Loosen the lock lever(C) to swivel the saw bow to
the setting degrees.
- Move the vice, loosen the handle(B) and move
forward or backward until coming against the
stops and tighten the lever.
- Slide the detachable retrieval table(D) into the
other side. Then tighten the handle(A) to hold in
the position.
5.2 Angle cutting
The machine can cut angles up to 60in both
directions.
-Check that the saw bow is raised to clear the vise
fixed vise jaw.
-Turn off power.
-Unlock the saw bow by using the lock lever under
the machine bench.
-Rotate the saw bow to the desired cutting angle.
Refer to the scale to determine the proper angle.
-Lock the cutting angle in place by using the lock
lever.
-Next, adjust the location of the vise to avoid
contact with the blade.
5.3 Adjusting the blade speed
*Blade speed must be changed while belt and
blade are moving.
-Check that the machine is running and blade is
moving.
-Rotate the speed change hand wheel 3.10 A and
check the speed level 3.10 B for desired speed.
Turn the dial clockwise to raise blade speed, and
turn the dial counter clockwise to reduce blade
speed. The speeds available are 32-96MPM / 98-
317FPM.
Z1
Z
D
A
C
B

10
5.4 Changing the transmission belt
Over time and due to normal wear and tear the
pulley belt will need to be changed.
- Disconnect the machine from power supply.
- Open the belt cover. Remove 4 screws from the
top. Remove 1 screw from the front.
Remove 8 screws from the cover.
- Turn the dial counter-clockwise to open the pulley
discs and loosen the belt.
- Replace the belt.
- Turn the dial to pretension the belt.
5.5 Changing the blade (Manual blade tension
type)
-Raise the saw bow approximately 6” in height.
-Disconnect the machine from the power source.
-Remove both blade guides from the blade guide
blocks and cover.
-Loosen the cover’s lock screws and open the
covers.
- Take off the chip brush device by loosen it’s
screws.
-Loosen left blade guide arm’s lock handles and
slides it to the right side as far as possible.
- Release blade tension by turning the blade
tensioning handle counter-clockwise until blade is
free.
-Remove the old blade from both wheels and out
of each blade guide.
Caution: Even dull blades are sharp to the skin!
Use extra caution handling band saw blades!
-Position the blade and making sure that the teeth
are pointed downward in the cutting direction.
- Position the blade on the wheels. Make sure back
of the blade rests lightly against the wheel flange
of the both wheels. Twist blade slightly to allow it
to slip into guides.
-Tension the blade to the tension indicator shown
line MI-93850. Replace the chip brush device so
that it touches the blade and tighten setscrew.
-Close all covers and guards and fasten securely.
Connect machine to power and run the blade
freely for 1-2 minutes.
-Turn the power off and recheck the blade tension
and chip brush. If further adjustment is necessary
disconnect the saw from the power source, make
adjustments, and re-connect the power.
6 OPERATION CYCLE
6.1 Operation cycle
!
WARNING
Disconnect the machine from the power
source before making any adjustments or
repairs! Failure to comply may result in
serious injury!
!
A
G
B
C
D
E
F
H

11
-Turn on the main connect switch H. on the door of
electrical box.
-Press the F1-A button to select manual operation
mode.
-Start the hydraulic system, use switch D.
- Press the F1-C button to raise the saw bow
setting height, and the button light will become
green.
-Press the F1-E button to open the vise.
-Load the working material.
-Secure the material, press the F1-F button to
close vise, and the button light will become green.
-Choose the blade speed appropriate for the
material.
-Base on the diameter of the material, to adjust
saw bow contactor to set upper limited saw bow
height.
-Press the F1-A button to select automatic
operation mode.
-Start operation by using the start switch F.
-When the cutting operation is finished the saw
bow will automatically rise to the preset height
ready for the next operation.
6.2 Stopping or emergency stopping
There are two ways to stop the machine in an event
of an emergency or improper operation.
-For most situations, use the stop switch E. Using
the stop will not reset the controls and your
operation setting. The blade and drive motor will
stop. Then the saw bow will rise to the start
position. Adjustments can be made.
-Use the cycle start switch to continue the cutting
cycle.
- For unsafe and emergency conditions use the
emergency stop button B. Using the button will
stop the machine in last position. The motor and
hydraulic will stop and control setting will be
reset.
- To restart, the emergency stop button B must be
turned to release from the pressed position. Then
the operation cycle must restarted.
6.3 Automatic shutoff during machine
operation
If there are any improper operation or situation, the
machine is designed to automatically shut off during
the operation cycle to prevent any further damage
from occurring.
-If the hydraulic pump is on and the machine has
not been active for 5 minutes, the power will be
shut off.
-If the time take to clamp the vise is over 40 sec,
the power will shut off. The vise pressure warning
light will flash in warning.
-After cutting the saw bow has taken more than 40
sec to rise to the start position, the power will shut
off. The upper stroke-limit indicator light will flash
in warning.
-After pressing the start button, the vise clamps
the work piece, and saw bow begins cutting. If
the cutting time is unable to finish within 90
minutes, the lower stroke limit indicator will flash
in warning and the power will be shut off.
If any of the above situations occurs, reset the
machine by pressing F1-A button. This will
change the operation mode –manual or
automatic.
7 ROUTINE AND SPECIAL
MAINTENANCE
The maintenance jobs are listed below, divided into
daily, weekly, monthly and six-month intervals. If
the following operations are neglected, the result
will be premature wear of the machine and poor
performance.
7.1 Daily maintenance
- Give general cleaning to the machine to remove
accumulated shavings.
-Clean the lubricating coolant drain hole to avoid
excess fluid.
-Top off the level of lubricating coolant.
-Check blade for wear.
-Rise of saw frame to top position and partial
slackening of the blade to avoid useless yield
stress.
-Check functionality of the shields and emergency
stops.
7.2 Weekly maintenance
-Thoroughly clean the machine to remove
shavings, especially from the coolant tank.
-Removal of pump from its housing, cleaning of
the suction filter and suction zone.
-Clean the filter of the pump suction head and the
suction area.
-Use compressed air to clean the blade guides
(guide bearings and drain hole of the lubricating
cooling).
-Clean flywheel housings and blade sliding
surfaces on flywheels.
7.3 Monthly maintenance
-Check the tightening of the drive wheel screws.
- Check that the blade guide bearings on the heads
are perfect running condition.
-Check the tightening of the screws of the motor,
pump, and accident protection guarding.

12
7.4 Six-monthly maintenance
-Test the continuity of the equipotential protection
circuit.
7.5 Oils for lubricating coolant
Considering the vast range of products on the market,
the user can choose the one most suited to their own
requirements, using as reference the type SHELL
LUTEM OIL ECO. THE MINIMUM PERCENTAGE
OF OIL DILUTED IN WATER IS 8 - 10 %.
7.6 Oil disposal
The disposal of these products is controlled by strict
regulations. Please see the Chapter on "Machine
dimensions Transport - Installation" in the section
on Dismantling.
7.7 Special maintenance
Special maintenance must be conducted by skilled
personnel. We advise contacting your nearest
dealer and/or importer. Other protective and safety
equipment, devices (of the reducer), the motor, the
motor pump, and other electrical components also
require special maintenance.
7.8 Changing gear oil
The gear box requires periodic changing of oil. The
oil must be changed by the first 6 months of a new
machine and every year thereafter.
- To change the gear box oil (Type: HD150).
- Lower the saw bow to horizontal position.
- Disconnect the machine from the power source.
- Release the drain hold (R) to draw off gear oil by
loosening the hex head screw (S).
- Open fill hole (T) by releasing hex head screw (U).
- Replace the screw (S) after oil completely flows
off.
- Filling in gear oil (3100 cc) from T hole, until oil be
sight from the visual glass.
- Replace hole using the fill hole (T).
- Replace hex head screw (U).
7.9 Change guide roller
Check the gap between blade and guide roller. If
the bearing abrasion or damage results in wider
gap, it needs to replace a new part.
R, S
T, U

13
8 TECHNICAL CHARACTERISTICS
8.1 Table of cutting capacity and technical details
8.2 Noise Tests
The test was held under environmental noise levels of 65db. Noise measurements with the machine
operating unload was 71db. Noise level during the cutting of mild carbon steel was 73db.
NOTE: With the machine operating, the noise level will vary according to the different materials being
processed. The user must therefore assess the intensity and if necessary provide the operators with the
necessary personal protection, as required by Law 277/1991.

14
9 CIRCUIT DIAGRAM

15

PARTS LIST FOR MI-93850_SECTION A

PARTS # DESCRIPTION SPECIFICATION QTY PARTS # DESCRIPTION SPECIFICATION QTY
MI-93850-A1 Hex. Soc cap screw M6x25L 4 MI-93850-A37 Nut M6 2
MI-93850-A2 Bending Handle 9160502 2 MI-93850-A38 Set Screw M6x30L 2
MI-93850-A3 Chip Tray 460N3-10 1 MI-93850-A39 Control Box Bracket
Bushing 331D1-18-A 1
MI-93850-A4 Nut M6 4 MI-93850-A40 Handle M8x30L 331D4-38 1
MI-93850-A5 Oil Level Gauge 9160418 1 MI-93850-A41 Spring Washer M8 4
MI-93850-A6 Machine Base 460N3-01 1 MI-93850-A42 Hex. Cap Bolt M8x16L 4
MI-93850-A7 Hex. Cap Bolt M8x20L 6 MI-93850-A43 Hex. Cap Bolt M6x16L 4
MI-93850-A8 Coolant Tray 460N3-11 1 MI-93850-A44 Control Box Bracket Screw 331D1-18 1
MI-93850-A9 Flat Washer M8 6 MI-93850-A45 Half Button Head Socket
Screw M6x8L 4
MI-93850-A10 Spring Washer M8 6 MI-93850-A46 Control Box Bracket S20A3-07-B 1
MI-93850-A11 Nut M8 6 MI-93850-A47 Big Round Head Screw M6x8L 4
MI-93850-A12 Coolant Tray Bracket 331D3-02-B 2 MI-93850-A48 Control Box Bracket Cover S20A3-07-C 1
MI-93850-A13 Flat Washer M8 5 MI-93850-A49 ㄇ Type Handle A-42-C 330S0418 1
MI-93850-A14 Spring Washer M8 5 MI-93850-A50 Control Box 460N3-24 1
MI-93850-A15 Hex. Cap Bolt M8x20L 5 MI-93850-A51 Round Head Screw M5x8L 2
MI-93850-A16 Half Button Head Socket
Screw M6x8L 4 MI-93850-A52 Down Speed Valve Knob 1
MI-93850-A17 Oil Tank Cover (Front) 460D3-05-A 1 MI-93850-A53-1 Control Panel (Angle
Readout) 1
MI-93850-A18 Half Button Head Socket
Screw M6x8L 4 MI-93850-A54 Half Button Head Socket
Screw M5x8L 6
MI-93850-A19 Machine Base Seal Plate
(Left Front) 460D3-06 1 MI-93850-A55 Hex. Cap Bolt M8x20L 6
MI-93850-A20 Coolant Tray Bracket
(Right Front / Short) 460D3-02-C 1 MI-93850-A56 Coolant Tray 460N3-11 1
MI-93850-A21 Angle Coolant Tray 460D3-39 1 MI-93850-A57 Oil Tank Cover (Rear) 460D3-05-B 1
MI-93850-A22 Nut M6 2 MI-93850-A58 Half Button Head Socket
Screw M6x8L 4
MI-93850-A23 Angle Coolant Tray 460D3-39-A 1 MI-93850-A59 Hex. Cap Bolt M8x20L 6
MI-93850-A24 Nut 1/2" 1 MI-93850-A60 Spring Washer M8 6
MI-93850-A25 Movable Tripod Screw
1/2"*3" 331D4-37 1 MI-93850-A61 Flat Washer M8 6
MI-93850-A26 Hex. Cap Bolt M6x12L 2 MI-93850-A62 Nut M8 6
MI-93850-A27 Electrical Box 460N3-28 1 MI-93850-A63 Spring Washer M8 6
MI-93850-A28 Flat Washer M6 4 MI-93850-A64 Flat Washer M8 6
MI-93850-A29 Spring Washer M6 4 MI-93850-A65 Machine Base Seal Plate 460N3-21 1
MI-93850-A30 Hex. Cap Bolt M6x16L 4 MI-93850-A66 Half Button Head Socket
Screw M6x8L 4
MI-93850-A31 Electrical Box Door Pin 2 MI-93850-A67 Coolant Tray Bracket 331D3-02-B 3
MI-93850-A32 Electrical Box Cover 460N3-17 1 MI-93850-A68 Spring Pin D8x20L 4
MI-93850-A33 Hex. Soc cap screw M6x30L 1 MI-93850-A69 Cutting Table Plate 460N2-12 2
MI-93850-A34 Hex. Cap Bolt M8x16L 4 MI-93850-A70 Coolant Pump 1/6"x150L 1
MI-93850-A35 Spring Washer M8 4 MI-93850-A71 Spring Washer M6 4
MI-93850-A36 Control Box Bracket 331D3-37 1 MI-93850-A72 Hex. Cap Bolt M6x16L 4
PARTS LIST FOR MI-93850_SECTION A

PARTS LIST FOR MI-93850_SECTION B