Huvema HU 370 ASK User manual

Sawing machine
with mitre cutting
HU 370 ASK

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Contents
1Introduction................................................................................................................... - 3 -
2Safety Precautions........................................................................................................ - 4 -
2-1 Introduction........................................................................................................... - 4 -
2-2 Personal Protective Equipment............................................................................ - 4 -
2-3 Danger Zones....................................................................................................... - 5 -
2-4 Safety Devices ..................................................................................................... - 5 -
2-5 Operating、Running............................................................................................. - 6 -
2-6 Maintenance、Inspection..................................................................................... - 7 -
2-7 Warning Plates and Warnings .............................................................................. - 7 -
3Machine Specifications.................................................................................................. - 9 -
4Installation................................................................................................................... - 10 -
4-1 Unpacking and Inspection.................................................................................. - 10 -
4-2 Handling, Lifting, Transporting and Unloading Procedure .................................. - 10 -
4-2-1 Preliminary operations .............................................................................. - 10 -
4-2-2 Lifting the machine.................................................................................... - 10 -
4-3 Installation...........................................................................................................- 11 -
4-4 Connecting Electric Power ................................................................................. - 12 -
4-5 Add Cutting Oil................................................................................................... - 12 -
4-6 Procedure to install the stopper.......................................................................... - 13 -
5Machine Outline.......................................................................................................... - 14 -
5-1 Machine Outline and Major Components ........................................................... - 15 -
5-2 Function of Control Switches.............................................................................. - 18 -
6Operation Mode .......................................................................................................... - 19 -
6-1 Adjustment of the Clamping Vise ....................................................................... - 19 -
6-2 Installation of the Saw Blade.............................................................................. - 19 -
6-3 Number of Saw Blade Tooth Selection............................................................... - 20 -
6-4 Adjustment of the miter cutting........................................................................... - 21 -
6-5 Specifications and Outline Drawing.................................................................... - 21 -
6-6 Adjustment of Sawblade Traveling..................................................................... - 21 -
6-7 Steps of Operation.............................................................................................. - 22 -
6-8 Maintenance....................................................................................................... - 23 -
7Troubleshooting .......................................................................................................... - 24 -

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1 Introduction
Features and Functions：
Double head MC-370AC series are manual circular sawing machines by air clamping
vise for ferrous solid bars and tubes cutting. The capacity for round tubes is ∮115mm.
The capacity for square tubes is 100x100.
Burr Free & Less Dust
Self-Centering vise with two sides clamping to solidly hold the work piece and
ensure a smooth and burr free cutting surface. Low operation noise and low pollution
working environment
Fast, Precision & Clean
Compared to Band Sawing, Circular Sawing is much more economical, faster in
cutting, more precise, and cleaner
Miter Cutting
The Saw Head can be swiveled either direction at various degrees for miter cutting,
providing excellent precision in angle accuracy
Cooling System
Equipped with electrical cooling pump and a large coolant tank to ensure excellent
working temperature on the Saw Blade and the Work Piece, as well as a smooth
cutting surface and longer blade life

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2 Safety Precautions
2-1 Introduction
1. Machine operators must read the manual thoroughly, and fully understand the
functions of the machine and its safety requirements before usage.
2. No one other than qualified operators should operate the machine.
3. This machine design has complied with safety requirements of your company. In case
of any concern, check on the detail of each requirement as needed.
4. The operator should check to ensure that the machine is connected to proper power
source before usage.
5. Depress emergency stop button and shut off power source if any unusual situation
occurs during usage.
6. Un-plug power source while installing, dismantling, maintaining, or adjusting the
machine
7. During the process of adjusting or testing the machine, if the electric power needs to
be on, the operator should pay extra attention to the action of automatic mode to
ensure people safety.
8. Keep the machine and its surrounding clean and bright to ensure operation safety.
9. Maintain the machine periodically to ensure normal functions of each part of the
machine.
10. Do not operate the machine beyond its specifications.
11. Do not remove or alter any safety protection part of the machine, such as saw blade
protection cover, operator safety cover, emergency power switch etc.
12. The operator must wear eye protective goggle while operating the machine.
2-2 Personal Protective Equipment
1. Operators and maintenance personnel carrying out various operations on the machine
must used personal protection equipment, e.g. goggles, boots and gloves to eliminate
the possible risks related to the various activities being carried out.
2. The clothing of machine operators and maintenance personnel must comply with the
essential safety requirements specified in community Directives 89/656/EEC,
89/686/EEC and laws in force in the country where the machine is installed.
3. Do not wear accessories or jewelers, including bracelets, watches, rings or necklaces,
when carrying out maintenance operations in which operation in unprotected area is
required to avoid mechanical risks, such as dragging, entrapment or other.

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4. Wear safety boots and protective gloves during all working phases and when
changing the tools, filling the tubes, handling cut parts, setting the machine and
carrying out maintenance operations.
2-3 Danger Zones
The operator’s workplace and the necessary free space around the system to ensure
regular activities related to the machine.
A free space of at least one meter around the entire perimeter of the machine is required
to ensure safe operation.
DANG ERO US AREA
O PER ATO R'S PO SITIO N
FREE AREA
2-4 Safety Devices
Emergency stop buttons
1. Red emergency stop mushroom buttons are arranged on the machine.
2. Press one of the mushroom buttons to stop the machine in an emergency. The buttons
operate a safety circuit and block all movements.
3. Carry out the following procedure every 200 hours to test correct operation of the
emergency stop circuit:
a. Start the machine.
b. Press an emergency stop button.

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c. Reset the emergency stop button.
Repeat this procedure for all emergency stop buttons. You will not be able to restart the
machine if the emergency circuit fails.
Power switch
To disconnect main electric power when it is placed at ON position. For maintenance, you
should turn it to OFF position then could open this electric box door.
2-5 Operating、
、、
、Running
Please reading the manual in advance and operating this machine according to the
manual instruction.
★
★★
★We will not be responsible for any operating accident due to the customer


unauthorized remodeling or adding any additional device.
1. Operation, always arrange single operator to operate this machine. It is very
dangerous to have multiple operators operating this machine in the same time. Please
absolutely avoid doing it.
2. Never let hands or body near and inside the machine running partitions. It is very
dangerous and please absolutely avoids doing it.
3. Always turn off electrical motor and confirm the machine stop before replacing die. It is
very dangerous to do this without turning them off. Please absolutely avoid doing it.
4. Always confirm that there is no tools, fixtures, or any other unnecessary things inside
the action area before operating this machine, otherwise machine failure or human
injury may happen. Attention required, please.
Power
switch
Emergency
stop buttons

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2-6 Maintenance、
、
、
、Inspection
1. Never disassemble and remodel any component of this machine, otherwise it may
result in fire, machine failure and malfunctions.
2. Never do directly welding on this machine; otherwise it may result in machine failure
and malfunctions.
3. Always cutoff the power supply and wait for 5 minutes before loading/unloading and
replacing any components, otherwise it may result in electrical shock or machine
failure.
4. Always cutoff the power supply before performing daily inspection, otherwise it may
result in electrical shock in the power on condition.
5. In order to avoid non duty person turning on the machine power during the machine
maintenance and inspection periods, please paste a warning sign of “No Power On” or
“Power On Forbidden” beside the machine primary power at the machine power
control panel, otherwise it may result in electrical shock or human injury.
6. Never load or unload any wire, baseboard, and connectors while machine is power on,
otherwise it may result in electrical shock, machine failure and malfunctions.
7. Please confirm that every bolts installation, applying tools collection and cover doors
of control panel and machine are all well arranged after maintenance and inspection
work finished, otherwise it may result in electrical shock, fire, human injury or machine
malfunctions.
2-7 Warning Plates and Warnings
The form and contents of warnings are described in the following.
No DRAWING POSITION EXPLANATION
1
Always wear earplug
when operating
machine.。
2
Always wear goggle
when operating
machine.。

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3
This symbol indicates
operators should
aware of saw blade
edge to prevent
cutting injuries
happening. When
changing saw blade,
make sure main
power is turn off.
4
This symbol indicates
there are high voltage
electric facilities with
potentially danger and
may cause risk to the
life and health of
individuals. Do not
remove this cover
without disconnecting
main power supply.
Not observing these
notes may result in
injuries.
Only opened by
qualified electrician.
Avoid electric shock.

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4 Installation
Please read the instruction carefully before installation.
If having any question please contact your dealer for prompt service.
4-1 Unpacking and Inspection
1. Check if there is any damage on the wooden case or the plastic bag that used to pack
the machine. Should any damage be found on the machine, please claim for the
damage against the delivery or insurance company.
2. Check the machine and accessories against the packing list. Should any shortage,
please contact your dealer.
4-2 Handling, Lifting, Transporting and Unloading Procedure
4-2-1 Preliminary operations
Follow the preliminary lifting activities listed below before handling the machine:
1. Suitably lock all parts.
2. Remove all tools from the unit, where relevant.
3. Arrange the units so that they are balanced.
4-2-2 Lifting the machine
The main component lifting points are show in figures 4-1.
Figure 4-1 Lifting the machine

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1. Drive a forklift to move the machine. The operator must be qualified to drive
aforklift to move the machine.
2. Lift the machine a few centimeters and check the machine is balanced or not.
3. The weight of the machine is shown in the machine specification table. Make
sure the capacity of the forklift is enough to lift the machine.
4. When moving the machine, there should be at least two workers. One person
drives the forklift and another should be responsible for the safety of
surrounding people and making sure that the machine dos not collide with
other objects.
5. When the machine is lifted higher than 50mm, there should be keeping a
safety distance more than 2 meters around the machine.
6. Be careful when moving the machine.
7. Be sure to install the machine in a horizontal base.
8. The mounted feet of the machine base and material rack need to be fixed by
bolts and nuts on the shock-proof mat.
4-3 Installation
The machine installation area must be sufficiently wide to house the machine
and provide space to move around it for carrying out the various intervention related to
machine operation.
Follow the procedure to install the machine:
1. Use foundation bolts to install the machine, as the following picture
shows.(Figure 4-2)
2. Please connect the power by a qualified electrical technician, according to the
machine specifications and electric wiring diagrams.
3. Please provide appropriate power source and connect the power line.

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Figure 4-2 Leveling points
4-4 Connecting Electric Power
1. Only qualified electrician can connect electric power.
2. The voltage, amperage and protection capacity of the power source shall meet the
requirement of the machine.
3. Check the rotation of the saw blade shaft (arbor). Change over two conductors in
junction box if the direction of rotation does not consist with the direction of the label
on the saw blade safety cover.
Note:
1. Assure the main power switch is at “OFF” position and the saw blade motor
speed select switch is at “OFF” position before connecting the machine to
electric power source
2. Do not install saw blade on the main shaft when checking the rotational
direction of the main shaft.
4-5 Add Cutting Oil
1. Add specified vegetable cutting oil to the oil can of the oil-mist jet located at the back
of the machine.
2. Add oil up to the fill-up line, around 5 liters.

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4-6 Procedure to install the stopper
1. Mount the stopper arm at the “0” point on the stopper support beam as illustrated on
following figure1.
2. Put the stopper support beam into the hole in the base plate.
3. Fix the stopper support beam when the stopper is just touching the sawblade as
illustrated on following figure2.

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5 Machine Outline

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5-1 Machine Outline and Major Components
1. Front view

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2. Right side view

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3. Left side view

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5-2 Function of Control Switches
1. Main power switch
Main power switch is an "ON-OFF" two-position lever switch to connect or disconnect
outside power to the machine. Main (saw blade) motor runs when main power switch
is at "ON" position.
2. Main power indicator
Main power indicator lights up when main power switch is at "ON" position.
3. Start button
Press and release the start button to start the operation of the front vise cylinder, the
saw blade motor and the vertical action of cutting head. Press the button once to get
one cutting cycle.
4. Emergency stop button
Stop all the actions of Item (3) immediately when the button is pressed. Turn the
button clockwise to reset.
5. Uppermost limit adjustment nut and lowermost limit adjustment nut
By adjusting the uppermost limit adjustment nut and lowermost limit adjustment nut to
actuate the position limit switches and to control the stroke of saw blade.
6. Saw blade motor speed select switch
This is a "LOW-OFF-HI" three-position level switch on the top of the motor for
selecting a suitable speed for saw blade to cut material.
7. Saw blade feeding (cutting head moving) speed adjustment knob
By adjusting the flow rate of hydraulic oil to control the saw blade feeding speed.

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6 Operation Mode
6-1 Adjustment of the Clamping Vise
1. Release the handle.
(Cutting head shall be at up position)
(Saw blade motor shall stop.)
2. Turn the vise hand wheel counter-clockwise to open the vise.
3. Put a work piece into the clamping area of vises.
4. Turn the vise hand wheel clockwise to close the vise and fasten a work piece.
5. Turn the vise hand wheel 1/2 (half) turn counter-clockwise to open the vise slightly.
This is the ready position to take in or remove a work piece.
6-2 Installation of the Saw Blade
1. Release the handle.
2. Turn off the saw blade motor speed select switch.
3. Open saw blade safety cover.
4. Remove the clamping flange from the saw arbor.
5. Clean the clamping surfaces of flange and arbor free from any dirt or chips.
6. Clean the clamping area of the saw blade.
7. Mount saw blade on the arbor. Align the pinholes of saw blade and arbor. Put the
clamping flange on the saw blade, and tighten the center bolt.
Note: The rotation of saw blade shall be counter-clockwise while looking at the
mounting surface. There is a directional mark labeled on the protection cover.
8. When lock the center bolt, keep the front part of saw blade downward to eliminate the
gap between pin and pinhole.
9. Close the saw blade safety cover.

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6-3 Number of Saw Blade Tooth Selection
Note: The following Charts of " Number of Saw Blade Tooth Selection " are for
reference. Diameter of Saw Blade ( mm )
Wall Thickness
of Tube ( mm )
Φ250 Φ275 Φ300 Φ350 Remark
0.6～0.8 T=280 280 300 320
0.8～1.0 240 280 280 320
1.0～1.2 220 240 240 280
1.2～1.6 200 220 240 240
1.6～2.0 180 200 220 220
For Tube
Diameter
D≧10 mm
2.0～2.5 150 180 180 200 D≧15 mm
2.5～3.5 120 150 150 180 D≧20 mm
3.5～4.5 90 120 120 150 D≧25 mm
4.5～5.5 80 80 90 120 D≧30 mm
5.5～7.0 64 64 80 90 D≧40 mm
For Wall Thickness≧2 mm, the Formula for Number of Tooth T is as following
T= 2×(Diameter of Saw Blade×3.14)÷(Wall Thickness of Tube)
For Size of Bar≧38 mm, the Formula for Number of Tooth Tis as following
Number of Saw Blade Tooth (T) for Mild Steel Solid Bar Cutting
Diameter of Saw Blade ( mm )Size of Bar
( mm ) Φ250 Φ275 Φ300 Φ350
6～10 T=180 200 200 220
10～14 160 160 180 200
14～18 150 160 160 180
18～22 120 150 150 160
22～28 90 90 120 160
28～35 80 80 90 120
35～45 70 70 80 90
45～50 64 64 70 80
T= 4×(Diameter of Saw Blade×3.14)÷(Size of Bar)
1. For stainless steel, the number of tooth is one grade more than mild steel.
2. For aluminum and copper, the number of tooth is one grade less than mild steel.
3. For 45° miter cutting, the number of tooth is one grade less than 90° cutting.