Huvema HU 285 AC-4 TOPLINE User manual

HU 285 AC4 TOPLINE
BANDSAW MACHINE

2CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Table of conTenTs
1. General safety rules for all machines 3
2. Additional safety rules 4
3. Safety rules for all tools 4
3.1 User 4
3.2 Use of machine 4
3.3 Adjustment 5
3.4 Working environment 5
3.5 Maintenance 5
3.6 Spectified usage 5
3.7 Noise 5
3.8 Safety device 5
4. Specification 6
5. Transportation & installation 6
5.1 Unpacking 6
5.2 Transportation of machine 7
5.3 Installation 7
5.4 Cleaning & lubricating 7
5.5 Make proper tooth selection 7
6. Bi-metal speeds and feeds 8
6.1 Telltale chips 9
7. Use of main machine parts 10
7.1 Power systems and control panel 10
7.2 Operation 10
7.3 Adjusting upward and downward travel of saw arm 10
7.4 Adjusting blade tension and blade tracking 11
7.5 Adjusting cutting width 11
7.6 Adjusting blade guide roller bearings, carbide blade guides and back-up bearings and clearing the
cutting chips 11
7.7 Operating the true-lock vise system 11
7.8 Cutting angle selection 12
7.9 Removing and installing the blade 12
8. Maintenance 12
8.1 Chips 13
9. Electrical diagrams 15
10. Parts Diagram 16
11. Exploded drawing and parts list 20

3
CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
HU 285 ac-4 ToPlIne
1. General safeTy rUles for all macHInes
N.B.: Read the instructions carefully in order to avoid any problems.
As with all machinery there are certain hazards involved with operation and use of this machine. Using the
machine with respect and caution will considerably lessen the possibility op personal injury. However, if normal
safety precautions are overlooked or ignored, personal injury to the operator may occur. Observe these rules
insofar as they are applicable to this particular machine.
This machine was designed for certain applications only. We strongly recommend that this machine NOT be
modified in any way and/or used for any application other than for which it was designed.
If you have any questions relative to its application DO NOT use the machine until you have contacted your
dealer.
1. For your own safety read the instruction manual before operating the tool.
2. Keep all guards in place and in working order.
3. Ground all tools.
4. Remove adjusting keys and wrenches. Make a habit of checking the machine before turning it on.
5. Keep the work area clean. Cluttered areas and benches invite accidents.
6. Do not use in a dangerous environment, such as damp or wet locations or expose to rain. Always keep the
work area well-lit.
7. Keep children and visitors away. They must be kept at a safe distance from the machine at all times.
8. Make sure that the work area is not accessible to unauthorised persons. Use padlocks, master switches,
remove starter keys etc.
9. Never overload the machine. The capacity of the machine is at its largest when properly loaded.
10. Do not force the machine or attachment to do a job for which it was not designed.
11. Wear proper apparel. No loose clothing, gloves, neckties, rings, necklaces, bracelets or jewellery: they may
get caught in moving parts. No slip footwear is recommended. Wear a hairnet to contain long hair.
12. Always wear safety glasses and work according to safety regulations. Use a face or dust mask if operation is
dusty.
13. Always secure workpiece tightly using a vise or clamping device. This will keep both hands free to operate
the machine.
14. Do not overreach. Keep your proper footing and balance at all times.
15. Maintain tools in top condition. Keep them sharp and clean. Read the instructions carefully and follow the
instructions for cleaning, lubrication and tool replacement.
16. Lubricate the machine and fill all oil reservoirs before operation.
17. Disconnect tools before servicing and when changing accessories such as blades, bits, cutters etc.
18. Use only recommended accessories. Consult the owner’s manual for recommended accessories. The use of
improper accessories may cause hazards.
19. Avoid accidental starting. Make sure the on/off switch is in the“OFF”position before plugging in the power
cord.
20. Never stand on the machine or tools. Serious injury could occur if the machine is tipped or if the cutting tool
is accidentally touched.
21. Check damaged parts. Replace or repair damaged parts immediately. Check machine for alignment of
moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may
affect its operation.
22. Direction of feed. Feed work into a blade or cutter against the direction of rotation of the blade or cutter
only.
23. Never leave tool running unattended. Do not turn power off until it has come to a complete stop.
24. Alcohol, medication, drugs. Never us the machine while under the influence of alcohol, medication or drugs.
25. Make sure the tool is disconnected from the power supply, before servicing, repairing etc.
26. Keep the original packing for future transport or relocation of the machine.

4CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
2. addITIonal safeTy rUles
Always keep in mind that:
• the machine must be switched off and disconnected from the power supply during maintenance and repairs,
• clamped workpieces may only be measured when the machine is switched off.
Never lean over the machine, mind loose clothing, ties, jewellery etc. and wear a cap.
Do not remove safety devices or guards. Never use the machine while a guard is open.
Always use safety glasses for machining rough materials.
Burrs and chips should only be removed using a sweeper or other aid, never with your bare hands!
Never leave the machine running unattended.
Always wear safety glasses!
CAUTION: Install saw blade and blade guard before use. Set proper blade tension to prevent any danger caused
by damaged saw blade or work piece.
WARNING:
Your machine might not come with a power socket or plug. Before using this machine, please do ask
your local dealer to install the socket or plug on the power cable end.
3. safeTy rUles for all Tools
3.1 User
1. Wear proper apparel. No loose clothing, gloves, rings, bracelets, or other jewelry to get caught in moving
parts. Non-slip footwear is recommended. Wear protective hair covering to contain long hair.
2. Always wear eye protection. Refer to anslz87.1 Standard for appropriate recommendations.Also use face or
dust mask if cutting operation is dusty.
3. Don’t overreach. Keep proper footing and balance at all times.
4. Never stand on tool. Serious injury could occur if the tool is tipped or if the cutting tool is accidentally
contacted.
5. Never leave tool running unattended. Turn power off. Don’t leave tool until it comes to a complete stop.
6. Drugs, alcohol, medication. Do not operate tool while under the influence of drug, alcohol or any
medication.
7. Make sure tool is disconnected from power supply. While motor is being mounted, connected or
reconnected.
8. Always keep hands and fingers away from the blade.
9. Stop the machine before removing chips.
10. SHUT- OFF power and clean the band saw and work area before leaving the machine.
11. Do not touch the cutting blade while the machine is term on.
3.2 Use of macHIne
1. Remove adjusting keys and wrenches. Form habit of checking to see that keys and adjusting wrenches are
removed from tool before turning it“on”.
2. Don’t force tool. It will do the job better and be safer at the rate for which it was designed.
3. Use right tool. Don’t force tool or attachment to do a job for which it was not designed.
4. Secure work. Use clamps or a vise to hold work when practical. It’s safer than using your hand frees both
hands to operate tool.
5. Maintain tools in top condition. Keep tools sharp and clean for best and safest performance. Follow
instructions for lubricating and changing accessories.
6. Use recommended accessories. Consult the owner’s manual for recommended accessories. The use of
improper accessories may cause hazards.

5
CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
7. Avoid accidental starting. Make sure switch is in “off” position before plugging in power cord.
8. Directionof feed. Feed work into a blade or cutter against the direction of rotation of the blade or cutter only.
9. Adjust and position the blade guide arm before starting the cut.
10. Keep blade guide arm tight, a loose blade guide arm will affect sawing accuracy.
11. Make sure blade speed is set correctly for material being cut.
12. Check for proper blade size and type.
13. Stop the machine before putting material in the vise.
14. Always have stock firmly clamped in vise before starting cut.
15. Groundall tools. If tool is equipped with three-prong plug, it should be plugged into a three-hole
electrical receptacle. If an adapter is used to accommodate atwoprong receptacle, the adapter lug
must be attached to a known ground. Never removed the third prong.
3.3 adjUsTmenT
Make all adjustments with the power off. In order to obtain the machine. Precision and correct ways of
adjustment while assembling, the user should read the detailed instruction in this manual.
3.4 WorkInG envIronmenT
1. Keep work area clean. Cluttered areas and benches invite accidents.
2. Don’t use in dangerous environment. Don’t use power tools in damp or wet locations, or expose them to
rain. Keep work area well lighted.
3. Keep chileren and visitiors away. All children and visitors should be kept a safe distance from work area.
4. Don’t install & use this machine in explosive, dangerous environment.
3.5 maInTenance
1. Disconnect machine from power source when making repairs.
2. Check damaged parts. Before further using of the tool, a guard or other part that is damaged should be
carefully checked to ensure that it will operate properly and perform its intended function. Check for
alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other conditions
that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced.
3. Disconnect tools before servicing and when changing accessories such as blades, bits, cutters, etc.
4. Make sure that blade tension and blade tacking are properly adjusted.
5. Re-check blade tension after initial cut with a new blade.
6. To prolong blade life always release blade tension at the end of each workday.
7. Check coolant daily low coolant level can cause foaming and high blade temperatures. Dirty coolant can clog
pump, cause crooked. Rust, low cutting rate and permanent blade failure. Dirty coolant can cause the growth
of bacteria with ensuing skin irritation.
8. When cutting magnesium never use soluble oils or emulsions (oil-water mix) as water will greatly
intensify any accidental magnesium chip fire. See your industrial coolant supplier for specific coolant
recommendations when cutting magnesium.
9. To prevent corrosion of machined surfaces when a soluble on is used as coolant, pay particular attention
to wiping dry the surfaces where fluid accumulates and does not evaporate quickly, such as between the
machine bed and vise.
3.6 sPecTIfIed UsaGe
This machine is used only for general metals cutting within the range of cutting capacity.
3.7 noIse
A weighted sound pressure level : under80 db.
3.8 safeTy devIce
Interlock switch on cutting area as soon as the cover of cutting area is open, machine will stop at once witch the
function of this switch. Do not remove this switch from machine for any reason, and check its function frequently.
4. sPecIfIcaTIon

6CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Motor 1,6 HP 400V/50HZ
Saw Blade Speed MPM 37~74 (50Hz)
Blade Size (mm) 27x0.9x2965mm
Dimension LxWxH (mm) 1350 x 715 x 1326mm
Packing N.W / G.W (kgs) 295/ 325
Measurement 1550x800x1480mm
Cutting
Capacity
0 ° O(mm/inch) 240
(mm/inch) 240
+45 ° O(mm/inch) 200
(mm/inch) 200
+60 ° O(mm/inch) 125
(mm/inch) 125
+45 ° O(mm/inch) 160
(mm/inch) 160
4.1 feaTUres
1. This machine is useful for cutting normal steel, steel pipe, and provides cutting angle at + 60°and +45°by the
swivel head.
2. A tooth selection chart was provided on the machine for cutting reference.
3. Variable speed control gives convenient selection of speeds. (This machine comes with a standard 2-speed
motor. But can be purchased with a DC driven motor as an option.)
4. This machine is using manual cutting by pulling down the saw bow by hand. Start(press) button is located at
the handle of the saw bow. Motor stops when button was released.
5. Stability of the machine, plus working table height is 950 mm, conforming to human engineering.
6. The one-inch blade and carbide guide provide better result of the cutting surface and efficiency.
7. The one-piece casting and one time CNC processing provide better rigidity and precision of the machine.
8. The one-piece and full coverage blade cover conforms to CE stipulation. Well coolant fluid collection system
provides clean and dry, and safety of the working area.
9. Chip pan underneath the working table prevents coolant fluid leaking and keep floor dry.
10. Coolant for cutting,, water : oil = 40 : 1 oil specification.
5. TransPorTaTIon & InsTallaTIon
5.1 UnPackInG
1. Transportation to desired location before unpacking, please use lifting jack.
2. Transportation after unpacking, please use heavy duty fiber belt to lift up the machine.
4
2.SPECIFICATION
MOTOR
1.65HP 415V/50HZ
Saw Blade Speed
MPM
37~74(50Hz)
Blade Size (mm)
27x0.9x2965mm
Dimension LxWxH (mm)
1350X715X1326mm
Packing
N.W / G.W (kgs)
295/ 325
Measurement
1550x800x1480mm
Cutting
Capacity
0°
○
(mm)
240
□
(mm)
240
+ 45°
○
(mm)
200
□
(mm)
200
+60°
○
(mm)
125
□
(mm)
125
+ 45
°○
(mm)
160
□
(mm)
150
3.FEARTURES:
1. This machine is useful for cutting normal steel, steel pipe, and provides cutting angle at + 60°and +45°by
the swivel head.
2. A tooth selection chart was provided on the machine for cutting reference.
3. Variable speed control gives convenient selection of speeds. (This machine comes with a standard 2-speed
motor. But can be purchased with a DC driven motor asan option.)
4. This machine is using manual cutting by pulling down the saw bow by hand. Start(press) button is located at
the handle of the saw bow. Motor stops when button was released.
5. Stability of the machine, plus working table height is 950 mm, conforming to human engineering.
6. The one-inch blade and carbide guide provide better result of the cutting surface and efficiency.
7. The one-piece casting and one time CNC processing provide better rigidity and precision of the machine.
8. The one-piece and full coverage blade cover conforms to CE stipulation. Well coolant fluid collection system
provides clean and dry, and safety of the working area.
9. Chip pan underneath the working table prevents coolant fluid leaking and keep floor dry.
10. Coolant for cutting,, water : oil = 40 : 1 oil specification.
4.TRANSPORTATATION & INSTALLATION:
4-1.Unpacking
1. Transportation to desired location before unpacking, please use-lifting jack. (Fig. B)
2. Transportation after unpacking, please use heavy duty fiber belt to lift up the machine.
Fig, B
5
ALLWAYS KEEP PROPER FOOTING & BALANCE WHILE MOVING
THIS MACHINE.
4-2.TRANSPORTATION OF MACHINE:
As this machine weights 208kgs(458.6lbs) it is recommended that the machine be
transported with help of lifting jack.
Transportation Recommendation:
1. Tighten all locks before operation.
2. Alwayskeep proper footing & balance while moving this machine, and only
use a heavy duty of fiber belt to lift the machine as per Fig. A.
3. TURN OFF the power before wiring & be sure machine is properly grounded.
Overload & circuit breaker are recommended for safety wiring.
4. Tighten 4bolts to base holes after
machine is balanced.
5. Checkcarefully if the saw blade is running in counter-
clockwise direction if not, reverse the wiring per circuit diagram,
then repeat the running test.
6. Keepmachine always out from sun, dust, wet, or raining area.
4-3.Installation:
(1) Always Keepproper footing & balance while moving this 208kgs machine. Hang
the machine up, away from the floor, take away the 4 pads and assemble them on
the auxiliary stand. Fix the machine on the auxiliary stand and lock the connection
nut.
(2) Finish removing this wooden case/crate from the machine. Unbolt the machine
from the crate bottom.
(3) Position & tighten 4 bolts into base holes properly after machine in balance.
(4) Turn off the power before wiring & be sure machine is in proper grounding.
Overload & circuit breaker is recommended for safety wiring.
(5) Keepmachine always out from sun, dust, wet, raining area.
4-4.CLEAIG & LURICATING
(1) Your machine has been coated with a heavy grease to protect it in shipping. This coating should be completely
removed before operating the machine. Commercial degreaser, kerosene or similar solvent may be used to
remove the grease from the machine, but avoid getting solvent on belts or other rubber parts.
(2) After cleaning, coat all bright work with a light lubricant. Lubricate all points . with a medium consistency
machine oil.
Fig. B
Fig. A
Fig 1 Fig 2
Always keep proper footing & balance while moving this machine.

7
CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
5.2 TransPorTaTIon of macHIne
As this machine weights 208kgs it is recommended that the machine be transported with help of lifting jack.
Transportation recommendation:
1. Tighten all locks before operation.
2. Always keep proper footing & balance while moving this machine, and only use a heavy duty of fiber belt to lift
the machine as per the figure.
3. Turn off the power before wiring & be sure machine is properly grounded. Overload & circuit breaker are
recommended for safety wiring.
4. Tighten 4 bolts to base holes after machine is balanced.
5. Check carefully if the saw blade is running in counter- clockwise direction if not, reverse the wiring per circuit
diagram, then repeat the running test.
6. Keep machine always out from sun, dust, wet, or raining area.
5.3 InsTallaTIon
1. Always keep proper footing & balance while moving this 208kgs machine. Hang the machine up, away from
the floor, take away the 4 pads and assemble them on the auxiliary stand. Fix the machine on the auxiliary
stand and lock the connection nut.
2. Finish removing this wooden case/crate from the machine. Unbolt the machine from the crate bottom.
3. Position & tighten 4 bolts into base holes properly after machine in balance.
4. Turn off the power before wiring & be sure machine is in proper grounding. Overload & circuit breaker is
recommended for safety wiring.
5. Keep machine always out from sun, dust, wet, raining area.
5.4 cleanInG & lUbrIcaTInG
• Your machine has been coated with a heavy grease to protect it in shipping. This coating should be
completely removed before operating the machine. Commercial degreaser, kerosene or similar solvent may be
used to remove the grease from the machine, but avoid getting solvent on belts or other rubber parts.
• After cleaning, coat all bright work with a light lubricant. Lubricate all points . With a medium consistency
machine oil.
5.5 make ProPer TooTH selecTIon
For maximum cutting efficiency and lowest cost per cut, it is important to select the blade with the right number
of teeth per inch (tpi) for the material being cut. The material size and shape dictate tooth selection.
Tooth Selection
You need to consider:
The width of the cut - that is, the distance in the cut that each tooth must travel from the point it enters the work-
piece until it leaves the work-piece, and
1.The shape of the work-piece.
• Squares, rectangles, flats (symbol : ■)
Locate the width of cut on the chart. (Inches on the outer circle and millimeters on the inner circle.)
Select the tooth pitch on the ring marked with the square shape which aligns with the width of cut.
Example: 6” (150mm) square, use a 2/3 vari-tooth.
• Round solids (symbol : ●)
Locate the diameter of your work-piece on the chart. Select the tooth pitch on the ring marked with the
round shape which aligns with the size of stock you are cutting.
Example: 4” (100mm) round, use a 3/4 vari-tooth.
• Tubing, pipe, structural ( symbol : O H ^ )
Determine the average width of cut by dividing the area of the work-piece by the distance the saw blade
must travel to finish the cut. Locate the average width of cut on the chart. Select the tooth ditch on the
ring marked with the tubing and structural shape, which aligns with the average width you are cutting.
Example: 4”(100mm) outside diameter, 3”(75mm) inside diameter tubing.
4”(100Mm) od =12.5 Sq.Ln. (79Cm2)
3”(75 Mm ) id = 7.0 Sq.Ln. (44Cm2)
Area = 5.5 Sq.Ln. (35Cm2)

8CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
5.5 Sq.Ln. (35Cm2) / 4”(100mm) distance
=1.38(35Mm) average width
1.38” (35Mm), use a 4/6 vari-tooth
Note: the band speed and cutting rate recommendations presented on this chart are approximations
and are to be used as a starting point for most applications. For exact sawing parameters’consult your
saw blade supplier.
6. Bi-metal speeds and feeds
These figures are a guide to cutting 4”(100mm) material (with a 314 Vari-Tooth) when using a cutting fluid.
Increase Band Speed:
15% When cutting 1/4”(6.4mm) material (l0/l4 Vari-Tooth)
12% When cutting 3/4”(19 mm) material (6/10 Vari-Tooth)
10% When cutting 1-1/4”(32 mm) material(5/8 Vari-Tooth)
5% When cutting 2-1/2”(64 mm) material(4/6 Vari-Tooth)
Decrease Band Speed:
12% When cutting 8”(200mm) material(2/3 Vari-Tooth)
MATERIAL ALLOY
ASTM NO.
BAND SPEED
FT./MIN M/MIN
Copper
Alloy
173,932 314 96
330,365 284 87
623,624 264 81
230,260,272 244 74
280,264,632,655 244 74
101,102,110,122,172 234 71
1751,182,220,510 234 71
625,706,715,934 234 71
630 229 70
811 214 65
Carbon
Steel
1117 339 103
1137 289 88
1141,1144 279 85
1141 HI STRESS 279 85
1030 329 100

9
CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Carbon Steel
1008,1015,1020,1025 319 97
1035 309 94
1018,1021,1022 299 91
1026,1513 299 91
A36(SHAPES),1040 269 82
1042,1541 249 76
1044,1045 219 67
1060 199 61
1095 184 56
Ni-Cr-Mo Alloy Steel
8615,8620,8622 239 73
4340,E4340,8630 219 67
8640 199 61
E9310 174 53
Tool Steel
A-6 199 61
A-2 179 55
A-10 159 49
D-2 90 27
H-11,H-12,H-13 189 58
Stainless Steel
420 189 58
430 149 46
410,502 140 43
414 115 35
431 95 29
440C 80 24
304,324 120 36
304L 115 35
347 110 33
316,316L 100 30
416 189 58
6.1 TellTale cHIPs
Chips are the best indicators of correct feed force. Monitor chip information and
adjust feed accordingly.
Thin or powdered chips – increase feed rate or reduce band speed.
Burned heavy chips – reduce feed rate and/or band speed.
Curly silvery and warm chips – optimum feed rate and band speed.
Fig 3

10 CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
7. Use of maIn macHIne ParTs
7.1 PoWer sysTems and conTrol Panel
The electrical rating of your band saw is 400 volt-3 phase, magnetic control.
Before connecting your machine to an electrical power system, be sure the motor shaft is running in the correct
direction. We recommend that 1.5Mm² fused with a 10 amp, dual element, time lag fuse, to be used to supply
power to all machines regardless of their electrical rating. Refer to the electrical wiring diagram supplied with
your machine for instructions On how to connect saw to power source. Power must be cut off when wheel cover
Is opened or during repairing.Please check the moving direction of the blade. If the blade is moving in the wrong
direction, please re-connect the wire.
7.2 oPeraTIon
1. Push the green button (under the emergency button A, fig. 4)
to start the machine .
2. Fast moving saw arm to approach cutting material
Turn the switch B, fig. 4 to“Quick” (the hand with the bow), push the handle A, fig. 5 down to move the saw arm
fast to near the material.
3. Auto Cutting
Turn the switch B, fig. A to“Auto” and push the handle A, fig. 5 slightly down.
The machine will go down and cut by itself. Adjust A, fig. 6 to regulate the down feed speed
of the saw arm.
4. Manual Cutting
Turn the switch B, fig. 4 to“Manual“ (the hand) and push the handle A, fig. 5 down.
The machine will convert to the manual cutting. Adjust the spring and A, fig. 6 to regulate the down feed speed
of the saw arm.
5. Select the blade cutting speed (C, fig. 4)
6. Emergency Stop switch (A, fig 4)
7.3 adjUsTInG UPWard and doWnWard Travel of saW arm
The downward travel of the saw arm should be adjusted so that when the saw arm is in the extreme downward
position, the teeth of the blade will not touch the table surface. The stop screw (G) is used to adjust the distance
between blade and table surface. After the distance is adjusted, tighten lock nut.
The screw (F) is used to adjust the saw arm upward angle, tighten lock nut.
A
Fig 4 Fig 5
Fig 7
G
F
Fig 6
B
AAC
8
F figS4
Afig S3
Afig S2
A figS5 B
Operation way :
1. Push the green button(A)(fig.S1) to connect the power for the machine .
2. Fast moving saw-farm to approach cutting material
Turn the switch (D(fig.S1)) to “Quick” ,push the handle of
limit switch(A)(fig.S2),it can move the saw farm manually to
near the material.
3. Auto Cutting
Turn the switch (D) (fig.S1) to “Automatic” ,
push the handle of limit switch(A)(fig.S2) ,
The machine will going down and cut by itself.
Adjust (A) (fig.S3) to set up the down-feed speed in saw-farm
4. Manual Cutting
Turn the switch (D) (fig.S1) to “Manual “ , push the handle of
limit switch(A)(fig.S2),
The machine will convert into the manual cutting .
Adjust the spring and (A) (fig.S3) to use manual operation
5. Select the blade cutting speed (B) (fig.S1)
6. Emergency Stop switch (C) (fig.S1)
7-2.ADJUSTING UPWARD AND DOWNWARD TRAVEL OF SAW ARM
The downward travel of the saw arm should be adjusted so that when the saw arm
is in the extreme downward position, the teeth of the blade will not touch the table
surface. The stop screw (G) (fig.S4) is used to adjust the distance between blade
and table surface. After the distance is adjusted, tighten lock nut.
The screw (F) (fig.S4) is used to adjust the saw arm upward angle, tighten lock
nut.
.
7-2. End-cutting adjustment
Loosen the screw (F) (fig.S5) , adjust the switch touch
plate (F) (fig.S5) up or down .
G
8
F figS4
Afig S3
Afig S2
A figS5 B
Operation way :
1. Push the green button(A)(fig.S1) to connect the power for the machine .
2. Fast moving saw-farm to approach cutting material
Turn the switch (D(fig.S1)) to “Quick” ,push the handle of
limit switch(A)(fig.S2),it can move the saw farm manually to
near the material.
3. Auto Cutting
Turn the switch (D) (fig.S1) to “Automatic” ,
push the handle of limit switch(A)(fig.S2) ,
The machine will going down and cut by itself.
Adjust (A) (fig.S3) to set up the down-feed speed in saw-farm
4. Manual Cutting
Turn the switch (D) (fig.S1) to “Manual “ , push the handle of
limit switch(A)(fig.S2),
The machine will convert into the manual cutting .
Adjust the spring and (A) (fig.S3) to use manual operation
5. Select the blade cutting speed (B) (fig.S1)
6. Emergency Stop switch (C) (fig.S1)
7-2.ADJUSTING UPWARD AND DOWNWARD TRAVEL OF SAW ARM
The downward travel of the saw arm should be adjusted so that when the saw arm
is in the extreme downward position, the teeth of the blade will not touch the table
surface. The stop screw (G) (fig.S4) is used to adjust the distance between blade
and table surface. After the distance is adjusted, tighten lock nut.
The screw (F) (fig.S4) is used to adjust the saw arm upward angle, tighten lock
nut.
.
7-2. End-cutting adjustment
Loosen the screw (F) (fig.S5) , adjust the switch touch
plate (F) (fig.S5) up or down .
G

11
CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
7.4 adjUsTInG blade TensIon and blade TrackInG
To tension the blade, turn the blade tension handle (fig. 8, A) clockwise.
The scale is graduated to indicate blade tension of 20,000, 30.000 And
35,000 pounds per square inch (psi).
For carbon blades, the blade should be tensioned at 20,000 psi.
For bi-metal blades (similar to the one supplied with the machine), the
blade should be tensioned at 30,000 or 35,000 psi. Always release blade
tension at the end of each working day to prolong blade life. Make sure
the blade is tensioned correctly before
checking or adjusting tracking. The blade is tracking properly when the
back of the blade is just lightly touching the wheel flanges of
both wheels while the machine is running.
7.5 adjUsTInG cUTTInG WIdTH
First loosen screw a, fig. 9. Move the left blade guide bar to the
suitable position. Then tighten screw A.
7.6 adjUsTInG blade GUIde roller bearInGs, carbIde blade GUIdes and back-
UP bearInGs and clearInG THe cUTTInG cHIPs
Before making the following adjustments, make sure the blade is
tracking and tensioned properly:
1. The back of the blade A, fig 10 should ride against the back-up
block (B). To adjust, loosen set screw (C) and move the guide block
(D) up or down, until it lightly touches the back of the blade.
2. The saw blade (A) should also ride between and lightly touch
the two blade guide roller bearings (E). The front bearing (E) is
mounted on an eccentric, and can easily be adjusted to suit the
blade thickness by loosening set screw (G) and turning shaft (E).
3. The carbide blade guides (H) should also be adjusted so they
lightly touch the blade by loosening screw (K).
4. The blade guide roller bearings, carbide guides and backup
bearing on holder should be adjusted in the same manner.
5. Cutting chips on the blade should be cleared with a the steel
brush.
7.7 oPeraTInG THe TrUe-lock vIse sysTem
To operate, proceed as follows:
1) Raise the arm 2” above the work piece; close the cylinder valve to maintain the
arm 2” above the work piece.
2) Put your work piece on the table. Move the vise handle (A) upwards to an
angle of 45 degree (half open) to loosen the vise. Move the vise jaw bracket against the
work piece by turning the rectangular handle (B). Push down on the vise handle (A) to
lock the work piece in position.
3) To loosen the work piece from the vise, hold the work piece and lift the vise
handle (A) to a 90 degree position (completely open). Remove work piece.
4) To fast move the vise , push handle A, fig. 12.
A
Fig 8
Fig 8
A
0
YCM-300V
METAL CUTTING BAND SAW MACHINE
INSTRUCTION MANUAL
A
Fig 9
Fig 10
Fig 11
Fig 12
9
7-3.ADJUSTING BLADE TENSION AND BLADE TRACKING
To tension the blade, turn the blade tension handle (fig. 1)(A) clockwise.
To set up at the middle of green position .
7-4.ADJUSTING CUTTING WIDTH
First loosen screw (A) (fig.2). Move the left blade guide bar to the suitable
position. Then tighten screw (A).
7-5.ADJUSTING BLADE GUIDE ROLLER BEARINGS,
CARBIDE BLADE GUIDES AND BACK-UP BEARINGS
AND CLEARING THE CUTTING CHIP
Before making the following adjustments, make sure the blade is
tracking and tensioned properly:
1.The back of the blade (A) (fig3) should ride against the
back-up block (B) (fig3-1). To adjust, loosen set screw (C) and
move the guide block (D) up or down, until it lightly touches the
back of the blade .
2.The saw blade (A) should also ride between and lightly touch
the two blade guide roller bearings (E) (fig. 3)
3.The carbide blade guides (H) (fig 3-1) should also be adjusted
so they lightly touch the blade by loosening screw (K). and
adjust the screw (F) (fig 3-1) to have right space for blade
4. The blade guide roller bearings, carbide guides and backup
bearing on holder (fig 9 ) should be adjusted in the same
manner.
5. Cutting chips on the blade will be cleared by the
steel brush. AEFig.3 F KCD
AFig.1
A
Fig. 2
B
H
B
Fig.3-1
10
7-6.OPERATING THE TRU-LOCK VISE SYSTEM INSTRUCTIONS
To operate, proceed as follows:
1) Raise the arm 2” above the work piece; Put your work piece on
the table. Move the vise handle (A) (fig. 6) upwards to an angle
of 45 degree (a-Half opened) to loosen the vise. Move the vise
jaw bracket against the work piece by turning the rectangular
handle (B) (fig. 6) for . Push down on the vise handle (A) to
lock the work piece in position.
2) To loosen the work piece from the vise, hold the work piece and
lift the vise handle (A) (fig. 6) to a 90 degree position
(completely opened). Remove work piece.
3) To fast moving the vise ,to push the handle of (A) (fig. 5).
Then push/pull (B) (fig. 6)
CONTINUED CUTTING:
When you need to cut a work piece many times, just raise the vise handle (A) to
loosen and adjust work piece position. Then push down on the same handle to
tighten. You can also push the vise handle (A) down first, and then tightening the
vise by turning the rectangular handle (B) clockwise. After finishing the cut, you
can loosen the work piece by turning rectangular handle only. This True-Lock Vise
System has a 4mm tightening travel when the rectangular handle is completely
opened. There is only a 2mm tightening travel necessary for normal metal
materials. The operator can tighten the work piece by pushing down the vise
handle (A) with a certain amount of pressure depending on hardness of work
piece.
7-7.VARIABLE CUTTING ANGLE SELECTION
Please proceed as follows to obtain desired cutting angle.
The swivel range is
from 0°to 60°clockwise.
Before swinging the base, make sure there is nothing
in the way, or any interference.
1. Unscrew out the knob (A) (fig. 7) swing the saw arm .
Refer to scale on (B) (fig. 7) for degree.
2. Screw out the knob (A) (fig. 7), then start the cutting.
A
Fig.5
A Fig 7
B
A Fig 6
B
10
7-6.OPERATING THE TRU-LOCK VISE SYSTEM INSTRUCTIONS
To operate, proceed as follows:
1) Raise the arm 2” above the work piece; Put your work piece on
the table. Move the vise handle (A) (fig. 6) upwards to an angle
of 45 degree (a-Half opened) to loosen the vise. Move the vise
jaw bracket against the work piece by turning the rectangular
handle (B) (fig. 6) for . Push down on the vise handle (A) to
lock the work piece in position.
2) To loosen the work piece from the vise, hold the work piece and
lift the vise handle (A) (fig. 6) to a 90 degree position
(completely opened). Remove work piece.
3) To fast moving the vise ,to push the handle of (A) (fig. 5).
Then push/pull (B) (fig. 6)
CONTINUED CUTTING:
When you need to cut a work piece many times, just raise the vise handle (A) to
loosen and adjust work piece position. Then push down on the same handle to
tighten. You can also push the vise handle (A) down first, and then tightening the
vise by turning the rectangular handle (B) clockwise. After finishing the cut, you
can loosen the work piece by turning rectangular handle only. This True-Lock Vise
System has a 4mm tightening travel when the rectangular handle is completely
opened. There is only a 2mm tightening travel necessary for normal metal
materials. The operator can tighten the work piece by pushing down the vise
handle (A) with a certain amount of pressure depending on hardness of work
piece.
7-7.VARIABLE CUTTING ANGLE SELECTION
Please proceed as follows to obtain desired cutting angle.
The swivel range is
from 0°to 60°clockwise.
Before swinging the base, make sure there is nothing
in the way, or any interference.
1. Unscrew out the knob (A) (fig. 7) swing the saw arm .
Refer to scale on (B) (fig. 7) for degree.
2. Screw out the knob (A) (fig. 7), then start the cutting.
A
Fi
g.5
A Fig 7
B
A Fig 6
B

12 CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Continued cutting
When you need to cut a work piece many times, just raise the vise handle (A) to loosen and adjust work piece
position. Then push down on the same handle to tighten. You can also push the vise handle (A) down first, and
then tightening the vise by turning the rectangular handle (B) clockwise. After finishing the cut, you can loosen
the work piece by turning rectangular handle only. This True-Lock Vise System has a 4mm tightening travel when
the rectangular handle is completely opened. There is only a 2mm tightening travel necessary for normal metal
materials. The operator can tighten the work piece by pushing down the vise handle (A) with a certain amount of
pressure depending on hardness of work piece.
7.8 cUTTInG anGle selecTIon
Please proceed as follows to obtain desired cutting angle.The swivel range is from 0° to 60°.
Before swinging the base, make sure there is nothing in the way.
• Loosen handle A, fig.13.
• Swing the arm to the desired angle, refer to scale B.
• Tighten handle A, and start the cutting.
7.9 removInG and InsTallInG THe blade
When it is necessary to replace the blade, proceed as follows:
1.Raise the saw frame about 6”.
2.Disconnect the machine from the power source. Loosen the cover screws and remove the cover, then clean the
chips and dirt inside the machine.
3.Release the blade tension by turning the blade tension hand-wheel (A, fig. 15) counterclockwise.
4.Remove the blade from both wheels and the blade guides.
5.Make sure the teeth of the new blade are pointing in the right direction.
6.Place the new blade on the wheels en through the blade guides. Readjust the blade tension.
8. maInTenance
1. Daily Maintenance (by operator)
(a) Fill the lubricant before starting machine everyday.
(b) If the temperature of spindle caused over-heating or strange noise, stop machine immediately to
check it for keeping accurate performance.
(c) Keep work area clean; release vise, cutter, work-piece from table; switch off power source; take chip or
dust away from machine and follow instructions lubrication or coating rust proof oil before leaving.
2. Weekly Maintenance
(a) Clean and coat the cross leading screw with oil.
(b) Check to see if sliding surface and turning parts lack of lubricant. If lubricant is insufficient, fill it.
3. Monthly Maintenance
(a) Check if the fixed portion has been loosened.
(b) Lubricate bearing worm, and worm shaft to avoid wear.
4. Yearly Maintenance
(a) Adjust table to horizontal position for maintenance of accuracy.
(b) Check electric cord, plugs, switch, at least once and a year to avoid loosening or wear.
10
7-6.OPERATING THE TRU-LOCK VISE SYSTEM INSTRUCTIONS
To operate, proceed as follows:
1) Raise the arm 2” above the work piece; Put your work piece on
the table. Move the vise handle (A) (fig. 6) upwards to an angle
of 45 degree (a-Half opened) to loosen the vise. Move the vise
jaw bracket against the work piece by turning the rectangular
handle (B) (fig. 6) for . Push down on the vise handle (A) to
lock the work piece in position.
2) To loosen the work piece from the vise, hold the work piece and
lift the vise handle (A) (fig. 6) to a 90 degree position
(completely opened). Remove work piece.
3) To fast moving the vise ,to push the handle of (A) (fig. 5).
Then push/pull (B) (fig. 6)
CONTINUED CUTTING:
When you need to cut a work piece many times, just raise the vise handle (A) to
loosen and adjust work piece position. Then push down on the same handle to
tighten. You can also push the vise handle (A) down first, and then tightening the
vise by turning the rectangular handle (B) clockwise. After finishing the cut, you
can loosen the work piece by turning rectangular handle only. This True-Lock Vise
System has a 4mm tightening travel when the rectangular handle is completely
opened. There is only a 2mm tightening travel necessary for normal metal
materials. The operator can tighten the work piece by pushing down the vise
handle (A) with a certain amount of pressure depending on hardness of work
piece.
7-7.VARIABLE CUTTING ANGLE SELECTION
Please proceed as follows to obtain desired cutting angle.
The swivel range is
from 0°to 60°clockwise.
Before swinging the base, make sure there is nothing
in the way, or any interference.
1. Unscrew out the knob (A) (fig. 7) swing the saw arm .
Refer to scale on (B) (fig. 7) for degree.
2. Screw out the knob (A) (fig. 7), then start the cutting.
A
Fig.5
A Fig 7
B
A Fig 6
B
Fig 13
A
B
11
7-8.vise for left and right position
Please proceed as follows to obtain desired clamp vise moving to left and right .
Before moving the vise, make sure there is nothing in the way, or any interference.
1. Unscrew out the knob (A) (fig.7-1) and push the vise
2. The handle will be left side when the vise stay in left side as(fig.7-2 )
3. And push the handle by anti-clockwise until hear the noise from the vise push the handle
Then the handle will be left side (fig.7-3 )
7-9.REMOVING AND INSTALLING THE BLADE
When it is necessary to replace the blade, proceed as follows:
1. Raise the saw frame about 6" and
close the feed on/off knob by turning
it clockwise as far as it will go (fig 8).
2. Move the blade guide arm to the
right.(Fig.9).
3. Disconnect the machine from the
power source. Loosen cover screw,
remove cover (A), open the cover (B),
remove cover (C) , then clean the
chips and dirt inside the machine.
4. Release blade tension (F) (fig 9) by
turning the blade tension hand-wheel
counterclockwise.
5. Remove the blade from both wheels and out of each blade guide. But remove side (B) saw blade. When totally
released, then remove the side (A).
6. Make sure the teeth of the new blade are pointing in the right direction. IF necessary, turn the blade inside out.
7. Place the new blade on the wheels. In the blade guides and adjust blade tension and blade guides.
Fig.8 AB Fig.9 C F
AFig 7-1 Fig 7-2 Fig 7-3
Fig 14 A B Fig 15 C F

13
CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
8.1 cHIPs
Clean the chips by removing the chips tank A (Fig 16 )
Fig 16
Symptom Possible Cause(s) Corrective Action
Machine can not be
started
1.Power is not plugged; the power
light on control panel is not on.
2.Motor cannot be started; power
was cut by limit switch.
3. Operation button cannot be
normally operated.
1. Check the motor specification; connect the
power with correct power supply. Make sure the
power light in on.
2. Make sure the cover is in correct position.
3.Push the emergency button; return it to original
position. Then release the emergency button
Excessive Blade
Breakage
1. Materials loosen in vise.
2. Incorrect speed or feed
3.Blade teeth spacing too large
4.Material too coarse
5.Incorrect blade tension
6.Teeth in contact with material
before saw is started
7. Blade rubs on wheel flange
8. Miss-aligned guide bearings
9. Blade too thick
10.Cracking at weld
1. Clamp work securely
2. Adjust speed or feed
3. Replace with a small teeth spacing blade
4. Use a blade of slow speed and small teeth
spacing
5. Adjust to where blade just does not slip on
wheel
6. Place blade in contact with work after motor
is starred
7. Adjust wheel alignment
8. Adjust guide bearings
9. Use thinner blade
10. Weld again, beware the welding skill.
Premature Blade
Dulling
1. Teeth too coarse
2. Too much speed
3. Inadequate feed pressure
4.Hard spots or scale on material
5. Work hardening of material.
6.Blade twist
7. Insufficient blade
8. Blade slide
1. Use finer teeth
2. Decrease speed
3. Decrease spring tension on side of saw
4. Reduce speed, increase feed pressure
5. Increase feed pressure by reducing spring
tension
6. Replace with a new blade, and adjust blade
tension
7. Tighten blade tension adjustable knob
8. Tighten blade tension
Unusual Wear on Side/
Back of Blade
1.Blade guides worn.
2.Blade guide bearings not adjust
properly
3.Blade guide bearing bracket is
loose
1.Replace.
2.Adjust as per operators manual
3.Tighten.
Teeth Ripping from
Blade.
1. Tooth too coarse for work
2. Too heavy pressure; too slow
speed.
3. Vibrating work-piece.
4. Gullets loading
1. Use finer tooth blade.
2. Decrease pressure, increase speed
3. Clamp work piece securely
4. Use coarser tooth blade or brush to remove
chips.

14 CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Motor running too hot 1.Blade tension too high.
2.Drive belt tension too high.
3. Blade is too coarse for work
4. Blade is too fine for work
5. Gears aligned improperly
6. Gears need lubrication
7. Cut is binding blade
1. Reduce tension on blade.
2. Reduce tension on drive belt.
3. Use finer blade.
4. Use coarse blade.
5. Adjust gears so that worm is in center of gear.
6. Check oil path.
7. Decrease reed anti speed
Bad Cuts (Crooked) 1. Feed pressure too great.
2. Guide bearings not adjusted
properly
3. Inadequate blade tension.
4. Dull blade.
5. Speed incorrect.
6. Blade guides spaced out too much
7. Blade guide assembly loose
8. Blade truck too far away from
wheel flanges
1. Reduce pressure by increasing spring tension
on side of saw
2. Adjust guide bearing, the clearance cannot
greater than 0.001.
3.Increase blade tension by adjust blade tension
4.Replace blade
5. Adjust speed
6. Adjust guide space.
7. Tighten
8. Re-track blade according to operating
instructions.
Bad Cuts (Rough) 1. Too much speed or feed
2. Blade is too coarse
3. Blade tension loose
1. Decrease speed or feed.
2. Replace with finer blade.
3. Adjust blade tension.
Blade is twisting 1. Cut is binding blade.
2. Too much blade tension
1. Decrease reed pressure.
2. Decrease blade tension.
Saw arm cannot be
raised up after pushing
the raising button
Improper setting of depth gauge 1.Press the emergency stop
Button and RESET.
2.Check the upper limit switch and stop round
Position. Make sure the limit switch is always
underneath the stop round bar.
3.Check the oil gauge; make
sure the oil is in proper range.
4.Check the motor revolution
direction; make sure the motor revolution is in
clock-wise direction.

15
CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
9. elecTrIcal dIaGrams
YCM-300
YCM-300
Fig 17

16 CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
10. ParTs dIaGram
Fig 18

17
CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Fig 19

18 CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Fig 20

19
CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Fig 21

20 CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED
Number Description Number Description
1CAP Screw 40 Fixed Block
2Washer 41 Set Screw
3Shaft 42 Switch
4Anchor Blok 43 Handel
5C-Ring 44 Handel Pipe
5*1 CAP Screw 45 Screw
5*2 CAP Screw 47 Screw
6Bearing 48 Blade Adjust Stick
7Left Body Frame 50 Screw
7-1 PIPE connect 52 Blade Cover (Front)
7-2 PIPE connect Body Frame 53 Blade Adjust (Front)
7-3 Right Body Frame 54 Guide
10 Knob 55 Guide Holder
11 Blade Tension Handle 55-1 Guide
12 Big Waswher 56 Screw
13 Lead Screw 60 Eccentric Guide
13-1 Tention gauge 61 Bearing
13-2 Washer 62 Screw
14 Hex, Socket Head Screw 63 CAPScrew
15 Fixed Block 64 Spring Washer
16 CAPSrew 65 Blade Adjustable (Rear)
17 Bushing 65-1 Valve
18 Reducer Block 66 CAPScrew
19 Washer 67 Chip Plate
20 Screw 68 Screw
20*1 Nut 69 Spring Washer
21 Reducer 70 Screw
22 Motor 71 Drive Wheel
25 CAP Screw 72 Washer
27 Key 73 Screw
28 Output shaft 74 CAPScrew
29 Key 74-1 Washer
30 Bearing 74-2 Nut
31 Spring Support 74-3 Cover Switch
31*1 spring holder screw 75 Blade Black Cover
32 Screw 75-1 Blade Left Cover
33 Steel Brush 75-2 Blade Up Cover
33*1 Blade Cover 75-3 Blade Down Cover
33*2 Brush holder 76 Wire Fixed Board
34 Screw 76-1 CAPScrew
34*1 Bearing Cover 78 Saw Blade
35 Spring Washer 79 Idler Wheel
36 Frame Pivot Shaft 80 C-ring
38 Screw 81 Screw
39 Screw 82 Washer
39-1 Copper 83 Wheel
11. exPloded draWInG and ParTs lIsT