TTMC BS-315G User manual

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METAL CUTTING BAND SAW
MODEL BS-315G
Operation Manual

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Table of contents
Introduction……………………………………………………………………………………2
1. Accident prevention and safety instruction……………………………………………..3
1.1Advice for the operator…………………………………………………………………..3
1.2 The electric equipments according to European Standard “2006/42/EC” which
some integrating modifications……………………………………………………………..3
1.3 Emergencies according to European Standard “2006/42/EC”………………………4
2. Description of machine…………………………………………………………………...4
2.1 Description of machine and its components………………………………………….4
2.2 Intended and unsuitable uses of the machine………………………………………...5
3. Main technical date………………………………………………………………..………5
4. Handling and transportation……………………………………………………………...5
5. Machine installation……………………………………………………………………….6
5.1 Machine check…………………………………………………………………………...6
5.2 Fastening of the machine……………………………………………………………….6
5.3 Saw blade assembly…………………………………………………………………….6
5.4 Electrical connection to the mains……………………………………………………..6
5.5 Cutting coolant…………………………………………………………………………...7
6. Machine start up and operation………………………………………………………….7
6.1 Operation………………………………………………………………………………....7
6.2 Cutting operation…………………………………………………………………………7
6.3 Special safety checks…………………………………………………………………...8
6.4 Measures to prevent residual risks…………………………………………………….8
7. Maintenance and repairs…………………………………………………………………9
7.1 General safety measures……………………………………………………………….9
7.2 Description of routine maintenance…………………………………………………....9
8. Parts list…………………………………………………………………….…………….11
9. Parts drawing..…………………………………………………………………………...14
10. Electric drawing…………………………………………………………………………16

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Introduction
This operation instruction manual conforms to the requirements of European Standard
2006/42/EC Machine Directives and subsequent amendments.
In the light of this，special attention has been given to safety aspects and accident
prevention in the work-place for each stage in the machine’s “life”. Information which
could be of particular assistance to the operator has been high lighted.
The “Operating instructions” are an integral part of the machine and should be
consulted before, during and after the start up of machine and whenever else required.
The content of these instructions should always be carefully observed.
The observance of the above is the only way to achieve the two fundamental aims of
this manual:
● Optimization of machine performance
● Prevent damage to the machine and injury to the operator
CAUTION: BEFORE INSTALLING THE MACHINE, READ THE OPERATING
INSTRUCIONS CAREFULLY

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1. Accident prevention and safety instruction
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.
1.1Advice for the operator
A. Check that the voltage indicated on the machine motor is the same as the line
voltage.
B. Check the efficiency of your electric supply and grounding system; connect the
power cable of machine to the socket and the ground lead (yellow-green) to the
grounding system.
C. When the saw frame is in suspended mode (or raised), the blade must not move.
D. Only the blade section used for cutting must be kept unprotected. To remove
guards operate on the adjustable head.
E. It is forbidden to use the machine without its shields.
F. 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.
G. Always wear suitable eye protection.
H. Never put your hands or arms into the cutting area while the machine is operating.
I. Do not shift the machine while it is cutting.
J. Do not wear loose clothing like: shirts with sleeves that are too long, gloves that are
too big, bracelets, chains or any other objects that could get caught in the machine
during operation. Tie back long hair.
K. Keep the area free of equipment, tools, or any other objects.
L. Perform only one operation at a time. Never have several objects in your hands at
the same time.
M. Keep your hands as clean as possible.
N. All internal operations, maintenance or repairs, must be performed in a well-lit area
or where is sufficient light from extra sources so as to avoid the risk of even slight
accidents.
1.2 The electric equipments according to European Standard “2006/42/EC”
which some integrating modifications.
A. The electric equipment ensures protection against electric shock as a result of
direct contact.
B. The active parts of this equipment are housed in a box to which access is limited by
screws that can only be removed with special tools; the parts are fed with

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alternating current as low voltage (24V). The equipment is protected against
splashes of water and dust.
C. 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.
D. In the event of a power cut, the specific start-up button must be reset.
E. The machine has been tested in conformity with European Standard.
1.3 Emergencies according to European Standard “2006/42/EC”.
In the event of incorrect operation of danger conditions, the machine may be stopped
immediately by pressing the red emergency button.
The casual or voluntary removal of the blade cover of the flywheels causes the
stepping-in of a interlock switch that automatically stops all machine functions.
Note: resetting of machine operation after each emergency stop require specific
restart button.
2. Description of machine
2.1 Description of machine and its components
The band sawing machine produced by us has a sturdy frame made from welded and
painted sheet-steel. The upper surface is designed to allow the complete draining
away of the cutting fluid. The band holding bow is made of cast-iron and has generous
dimensions，providing the cutting unit with the necessary strength and precision. The
vice unit is made of cast-iron and clamps the material to be cut securely. The bar-stop
device allows the length required to be preset and a constant level of performance for
repeated cuts. The blade-holding bow is firmly attached to a reduction unit built onto
the motor and to the base by means of a joint which allows 60°and 45°rotation to the
right and left. This joint also allows the cutting movement to advance manually or by
falling.
The coolant pump is fitted to the machine base. The main switch is located on the
front panel. The choice of one of the two motor rotation speeds and therefore cutting
speed is carried out by the main switch. The front panel is also fitted with an
emergency stop button and a START button. The control lever，fitted with an
ergonomic hand-grip and activation button with safety release action, reduces fatigue
during operation to a minimum. The blade is protected by a guard with interlock which
covers the upper area and the hand wheels and by two adjustable lower guards which
protect the operator from ejected shavings and coolant. The machine is supplied with

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a set of service spanners.
2.2 Intended and unsuitable uses of machine
The band sawing machine has been designed and built to cut bars, structural steel
and ferrous metal pipes in accordance with the instructions contained in this manual.
Therefore, the cutting of other materials is not permitted: if the above
recommendations are not observed，the machine could be damaged and the health
and safety of the operator put at risk. Cutting is not permitted, if the bar has not been
first locked in the vice.
3. Main technical date
Under no circumstances should the following data be altered, this is in order to protect
the correct functioning of the machine and to avoid creating safety risks for the
operator.
Motor
Motor Power
Three-phase or single-phase
0.75/1.1 kw
Capacity
Circular @90°
Rectangular @90°
Circular @60°
Rectangular @60°
Circular @45°
Rectangular @45°
230mm
315 x 170 mm
130 mm
130 x 130 mm
210 mm
210 x 170 mm
Blade size (length ×width ×thick)
2825×27×0.9 mm
Cutting speed
40 / 80 rpm
Cutting angle
60°/ 45°right
Piece locking vice: max opening
315 mm
Packing size
163 x 87 x 153 cm
Net weight / gross weight
350 / 390 kg
4. Handling and transportation
For safe handling and transportation use a lift truck for movement indoors. Keep the
machine in its normal position and avoid turning it upside down. If the machine is
fastened to the pedestal, stability will be greatly reduced and therefore all the
necessary measures should be taken to stop the machine from tipping over.

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All handing and transportation operations should be carried out by trained
staff.
5. Machine installation
5.1 Machine check
The machine should be checked to make sure that it has not been damaged during
transportation and handing. If the machine appears to have been damaged, contact
us immediately. Fit all the supplied accessories onto the machine such as #17 bar
stop and #33 roller arm.
5.2 Fastening of the machine
The machine will be able to operate in keeping with the technical parameters
supplied by us, if it is positioned correctly and fastened securely to the bench
or the factory floor so that vibrations are minimal during operation.
5.3 Saw blade assembly
Remove the #145 bow guard by unscrewing #149 screws and #64 Trifurcate handle.
Fit the band by inserting it first between the bearings of the blade guide heads and
then on the two pulleys, tighten the blade slightly by means of #64 Trifurcate handle
and install #145 bow guard. Check that the saw blade is fitted with the correct
direction of teeth. Make sure that the saw blade type (dimensions 2825×27×0.9 mm)
and its teeth pith are suited to the material to be cut.
5.4 Electrical connection to the mains
Install a differential thermo magnetic switch with characteristics suited to the
mains.

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Make sure that the power supply voltage corresponds to the voltage on the motor
plate. Connect the cable to the power supply line observing the color codes of the
individual wires, pay particular attention to the earth wire. Connect the machine, make
sure that the rotation of circular blade is in the direction shown by the arrow on the
guard.
5.5 Cutting coolant
For the cooling of the circular blade，fill the tank with emulsible oil obtained from a
mixture of water and AGIP ULEX 260 EP oil with a percentage of 5-7%
6. Machine start up and operation
6.1 Operation
Checks to carry out before each cut
A Tension the saw blade by rotating #64 Trifurcate handle to the end of stroke
(mechanic stop). Remember at the end of the operation to loosen the hand wheel
to avoid the slackening of the band.
B Check that the hand indicates the required cutting angle (vice scale).
C Make sure that the bow and the vice are locked by means of #54 lock handle
D With the motor off, lower the bow and check that at the end of stroke, the band
does not touch the counter-vice.
E Make sure that the piece to be cut is properly secured in the vice.
F Make sure that the cooling liquid is circulating in the machine.
It is strictly forbidden to use the machine without cutting fluid
G When starting the motor, make sure that the band rotates in the direction of the
arrow
H To obtain maximum cutting accuracy，the unit must be located the nearest
possible to the work piece. Clamp the work piece with the vice. Release #86 blade
guide arm with clamping lever and move it near the vice jaw so that it doesn’t
touch it during the cutting operation, then secure it again. When carrying out this
operation, make sure that the blade guide does not come out of the bow guard
leaving a part of the blade exposed.
6.2 Cutting operation
A. Before cutting, check that the inclination is the one required. In order to correct or
change the inclination, place #54 Lock handle in position you expect and after
correction, move it back to the lock position.
B. Manual operation: Clamp the material to be cut with #2 Handle bar after having
positioned the clamp near the piece to be cut. Press main switch to “ON”position,

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Change selector switch to “ ” position. Turn the speed switch to “1” position or
“2”position you like, take hold of #7 handle located at the end of head lever and
press the button. The blade will now start turning, position the blade carefully on
the piece to be cut. Then increase the pressure in order to accelerate the cutting
operation without using excessive force.
C. Automatic operation: Clamp the material to be cut with #2 Handle bar after having
positioned the clamp near the piece to be cut. Press main switch to “ON”position,
Change selector switch to “ ” position. Turn the speed switch to “1” position or
“2”position you like, after having started the unit by pressing the START push
button, the blade starts to rotate. The down stroke of the bow can be adjusted by
means of the appropriate regulator. Position the blade carefully on the piece to be
cut. Then increase the pressure with the regulator in order to accelerate the cutting
operation without using excessive force.
D. To make a series of cuts, position the bar stop in correspondence of the size
required. Fix it into position by using #19 Baffle block.
We strongly discourage the use of blades with ruined or insufficiently sharp
cutting edges
6.3 Special safety checks
A. Before using the machine, check carefully that the safety devices are in good
working order, that the mobile parts are not blocked, that no parts are damaged
and that all the components are installed correctly and are functioning properly.
B. Before operating the machine, make sure that the screws of the guards and other
protective devices are adequately secured, especially the screws of bow guard.
C. Check that the safety micro switches and the emergency button are functioning
correctly.
D. Make sure that the mobile guard does not leave uncovered an angle of more than
5°in order to prevent fingers from entering.
E. Pay attention to environmental conditions. Don’t expose the machine to rain, don’t
use it in damp environments, position the machine on a clean dry floor that has no
oil or grease stains.
F. Before using the machine, the operator should make sure that all tools and service
spanners used for maintenance or adjustment have been removed.
6.4 Measures to prevent residual risks
A. The removal of guards and tampering with the safety devices is strictly forbidden.
B. Gloves should always be worn.

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C. Standard work clothing should be used and kept closed and should not have
flapping parts.
D. The machine should not be cleaned with liquids under pressure.
E. In the event of fire, extinguishers should not be used unless they are the powder
type. The electric power supply to the machine should always be disconnected in
these circumstances.
F. Do not insert foreign bodies into the motor cover and not supply the machine with
voltage by tampering with the safety micro switches or main switch.
G. Take the necessary precautions to avoid the machine being started by other
people during loading, adjustment, piece changing or cleaning.
7. Maintenance and repair
7.1 General safety measures
A. Lock main switch. Use the padlock in the event of machine failure or replacement
of the band. The padlock key should be entrusted to a responsible person.
B. Before carrying out any work on electrical equipment, remove the power supply
plug from the control pane (disconnect voltage).
C. Only use cables to supply power, which have a cross-section suited to the power
of the machine.
D. Authorized personnel should only carry out repairs. Only spare parts made by the
original manufacturer should be used, otherwise these could cause damage or
injury.
7.2 Description of routine maintenance
A. Adjustment of the blade guide bearings
Loosen #85 bolts, rotate #91 Hex. cap bolt, so that the blade guide bushings vertically
position the blade in axis. Tighten #85 bolts until the blade secured. The front blade
guides must be positioned the nearest possible to the piece to be cut. Check every 3
months the existing tolerance between the blade guides, making sure that it does not
exceed the blade thickness of one tenth of a millimeter, so as to avoid inexactnesses
in the cut squaring. Periodically check with mounted blade that the blade guide
bearings rotate freely.
B. Cleaning of the coolant tank
The coolant tank can be cleaned by simply removing #46A bolts. Empty the coolant
from the tank and collect the coolant in a container for future disposal. Clean away the
shavings and the metallic powder, taking care not to scatter this over the machine
especially around the motor and the box containing the electrical equipment. Fill the

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tank with the amount and liquid stated earlier.
C. Checking of bench lever functioning
Check rotation release-locking lever is working properly regularly. In the event of the
lever not locking correctly, loosen #55 grub screw, tighten #56 nut and fasten #55 grub
screw again. Make sure that with the bench lever in right position, #26 rotating arm
which supports the bow can rotate freely.

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8. Part list
ITEM
DESCRIPTION
QTY
ITEM
DESCRIPTION
QTY
1
Handle glove M8X25
2
25
Block washer 10
2
2
Handle bar
1
26
rotating arm BS315G-0014
1
3
Handle axis
BS315G-0002
1
26A
Ruler
1
4
Thrust bearing AXK1730
1
26B
Limit block BS315G-0014
1
4A
Washer BS315G-0003
1
26C
Hexagon bolt M8x30
2
4B
Spring pin 6x30
1
26D
Nut M8
2
5
Lead screw
BS315G-0007
1
26E
Gasket BS315G-0038
1
6
Upper clamp
BS315G-0006
1
26F
Limit switch
1
7
Moving clamp board
BS315G-0008
1
27
Operating panel
1
8
Hexagon screw M10X20
3
27A
Operating panel
1
9
Adjusting handle
M12X100
1
28
Nut M6X16
2
10
Axis BS315G-0010
1
29
Mat 6
2
10A
Antenna BS315G-0011
1
30
Electrical box bracket
BS-315G-0031
1
11
clamp connecting seat
BS315G-0009
1
31
Mat 8
2
12
Lower clamp
BS315G-0012
1
32
Bolt M8X20
2
13
clamp fixed board 1
1
33
Roller BS315G-0025
1
14
Clamp fixed board 2
1
34
Holder shaft BS315G-0027
1
15
Hexagon screw M10X25
6
35
Mat 12
4
16
Hexagon screw M8x10
1
36
Bolt M12X20
4
17
Fixing bar
1
37
Sheath BS315G-0026
2
17A
Ruler
1
38
Block washer 17
2
18
Baffle shaft
1
39
Bracket BS315G-0028
1
19
Baffle block
1
40
Mat 10
4
20
Pentacle handle M8X16
1
41
Hexagon screw M10X25
4
21
Sleeve fixing shaft
BS315G-0019
1
42
Bracket BS315G-0013
1
22
Hexagon screw M6X20
4
43
Handle ball M10X32A
2
23
Hydraulic fixing seat
1
44
Shaft
1
24
Hydraulic fixing shaft
1
45
Cooling pump
1

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ITEM
DESCRIPTION
QTY
ITEM
DESCRIPTION
QTY
46
Cover board
BS315G-0018
1
74
Hexagon screw M8X16
6
46A
Hexagon screw M10X25
6
75
Handle switch
1
46B
Mat 5
6
76
Pressure handle
1
47
Under pan BS315G-0015
1
77
Hexagon screw M10X12
1
47A
Nut M10
2
78
Moving seat
1
47B
Hexagon bolt M10X45
2
79
Driven wheel
BS315G-0033
1
47C
Hexagon screw M10X45
4
80
Bearing 6207-2Z
2
48
Preventing board
1
81
Sheath
1
49
Leg BS315G-0016
1
82
Block washer 72
1
50
Hexagon screw M8X25
3
83
Mat
2
51
Mat 8
3
84
Hexagon bolt M12X25
2
52
Connecting shaft
1
85
Bolt M6X12
1
53
Lock seat
1
86
blade guide arm
1
54
Lock handle
1
87
Board
1
55
Grub screw M8X10
1
88
Flat washer 6
2
56
Nut M30X1.5
1
89
Hexagon screw M6X10
2
57
Mat 10
4
90
Pressure board
BS315G-0001
1
58
Hexagon screw M10X25
4
91
Hexagon bolt M12X35
1
59
Nut M8
4
92
Hexagon screw M5X8
2
60
Mat 8
8
93
Guard board
1
61
Hexagon screw M8X16
4
94
Rear adjusting seat
1
62
Door BS315G-0017
1
95
Hexagon head screw
M8x25
2
63
Lock MS802
1
96
Clamp
4
64
Trifurcate handle
∮70X∮18
1
97
Bearing 6208-2Z
4
65
Sheath
1
98
Hexagon eccentric cover
2
66
Spring pin 8X35
1
99
Hexagon eccentric cover
2
67
Adjusting pole
BS315G-0021
1
100
Flat washer 8
4
68
Dishing spring 4X20.5X2
12
101
Hexagon screw M6X30
2
69
Thrusting bearing
AXK2035
1
102
Hexagon screw M6X25
2
70
Saw bow BS315G-0020
1
103
Front adjusting seat
1
71
Blade adjusting switch
1
104
Driving wheel BS315G-0032
1
72
Hexagon screw M4X30
2
104.1
Saw blade
2825X27X0.9X5/8
1
73
Pressure board
2
105
Output shaft
1

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ITEM
DESCRIPTION
QTY
ITEM
DESCRIPTION
QTY
106
Block washer 40
2
129
Bearing cover
BS315G-0035
2
107
Bearing 6208-2Z
1
130
Bearing 32009X2
2
108
Cooling water separation
block
1
131
Sheath BS315G-0034
1
108A
Hexagon screw M4X25
4
132
Rotary shaft
BS315G-0036
1
109
Cylinder
1
133
Hexagon screw M10X25
4
110
Cylinder bracket
BS315G-0023
1
134
Hexagon screw M12X45
1
111
Hexagon M12X25
2
135
Pressure pad
1
112
sheath
2
136
Pressure spring Ⅱ
1
113
Hexagon screw M10X25
2
137
Pressure spring Ⅱ
1
114
Connecting board
BS315G-0030
1
138
Shaft
1
115
Shield board
BS315G-0029
1
139
Block washer 12
2
116
Wire brush ∮50
140
Shaft
1
117
Wire brush bracket
BS315G-0024
1
141
Sleeve
1
117.1
Hexagon screw M10X25
2
142
Block washer 15
1
118
Shaft sheath
1
143
Hexagon screw M8X20
4
119
Hexagon screw M6X6
1
144
axis seat
1
120
Slowdown box
1
145
bow guard
BS315G-0022
1
121
Hexagon bolt M10X30
4
146
Bow shield switch
1
122
Motor
1
147
Route switch pad
1
123
Route switch stand
1
148
Key switch plate
1
124
Hexagon screw M6X6
2
149
Screw M6X12
2
125
Nut BS315G-0037
1
150
Flat washer 6
2
126
Hexagon screw M8X10
1
151
Hexagon screw M6X12
2

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9. Part drawing

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16
10. Electric drawing

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Note: This manual is only for your reference. Owning to the continuous
improvement, changes may be made at any time with no obligation on
the part of machine. And please note the local voltage for operating
machine