Summary of Contents for Bomar Ergonomic 320.250 DGSH
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Series Ergonomic Ergonomic 320.250 DGSH Operating instructions Before transporting and using the machine, please read the instructions thoroughly! Seriové číslo / Serien Nummer / Serial Number ___________________ ...
Main switch ....................................35 3.2. Control elements ..................................35 3.2.1. Ergonomic 320.250 DGSH without frequency converter ............35 3.2.2. Ergonomic 320.250 DGSH with frequency converter ..............36 3.3. Machine control ..................................37 ...
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ASSEMBLIES FOR SPARE PARTS ORDER ........89 7.1. Ergonomic 320.250 DGSH ..............................90 7.2. Kusovník / Stückliste / Piece list – Ergonomic 320.250 DGSH ..............91 7.3. Ergonomic 320.250 DGSH ..............................92 7.4.
Keep the operating instructions in good condition! 1.1. Machine determination The band saw Ergonomic 320.250 DGSH is determined for cutting and shortening of rolled bars and drawn bars and profiles from steels, stainless steels, non-ferrous metals and plastics with cutting angles from -45° to 60°.
1.3. Safety notes for machine operator Attention! Machine can be operated by person older than 18 years! Machine can be operated only person physically and mentally fit for this activity Machine can be operated only by one person. Machine operator is responsible for presence of other persons by the machine.
Do not remove or do not lock the limit switches or safety equipments! Any use of the saw, accessories or machine parts other than that intended by the BOMAR, spol. s r.o. company is not permitted. The guarantee on this product will be afterward lost and BOMAR, spol.
1.6.3. Band saw cover It covers the visible area of the saw band from guiding cube to the frame. Never turn-ON saw band when cover is not mounted! 1.6.4. Saw band stretching and rupture inspection This device checks the saw band tension and causes immediate machine stop if the band incidentally ruptures.
2.4. Transportation and stocking 2.4.1. Conditions for transportation and stocking Keep recommendations for the manufacturers for transportation and stocking! If the recommendations are not kept, damage can occur to the machine. • Don’t use a forklift truck for handling the machine, if you do not have license for it! •...
2.5. Activation 2.5.1. Machine working conditions Keep the conditions of the manufacturer for machine operating! If recommendations are not kept, damage can occur to the machine. The manufacturer warrants the correct function of the machine for these conditions: • At temperature air from 5°C to 40°C, the temperature average during 24 hours must not exceed over 35°C.
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Component Description Hand wheel assembling Take down the nut from holder of the hand wheel. Insert it to the hole on back side of the wheel and screw on the holder. Length stop assembly Take on the length stop to the hole on vice side. Shift the length stop till the saw band (arrow 1) and set the scale to the value „0“...
Check the floor supporting capacity before machine installing. If the floor capacity does not agree with requirements, you must prepare the necessary base for the machine. Minimal requirement: machine weight – Ergonomic 320.250 DGSH – 372 kg + weight of accessories + maximum weight of material •...
2.6.4. Filling the reservoir with hydraulic oil Oil regulations and recommendations of the manufacturer in the technical documentation (appendix) are to be carefully observed. For standard power packs we recommend the oiltype OH-HM32 (DIN 51524) of all known oil manufacturers. Power packs have to be filled up with clean, pre-filtered oil! The purity of the hydraulic fluid must correspond to the class 10 NAS 1638 (reachable with filter ß...
2.7. Electrical connection Attention! Only a qualified professional must carry out the servicing and repairs of the electric equipment! Take special care during work with electrical equipment. High voltage shock can have fatal consequences! Always keep notes about work safety. Electrical parameters of the machine: •...
Constant tooth system – the saw band has parallel tooth pitch all over length. This way is suitable for cutting of solid material. BOMAR for recommended Variable tooth system for band saw. Variable tooth system – tooth pitch is variable. Variable tooth system is used for profiled materials and bundle cutting.
Footnotes: Z – teeth number on one inch S – tooth with zero angle of the teeth K – tooth with positive angle of the teeth Examples of the tooth system marking: 32 S – number „32“ means 32 teeth on one inch (that means constant tooth system), letter „S“...
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Tables for teeth selection SHAPED MATERIAL (D , S = mm) Note: Table shows tooth system selection for cutting one piece of the profile. For cutting of more pieces of the profiles (bundle), you must think of the size of the wall as double size of the wall of one profile (that means, size „S“ equates to 2×S). In table, there are tooth systems constant and variable. Tooth system (Z Size of the Outer diameter of the profile D...
It is not depicted on the diagram. 3.2. Control elements 3.2.1. Ergonomic 320.250 DGSH without frequency converter Switch of the cutting speed Select the cutting speed during cutting (40 or 80 m. min-1). TOTAL STOP button In case of emergency, the machine is stated to the order!
Notice: If you keep closing the throttle valve too tightly, the valve seat may wear off which causes its leakage. Therefore, close the valve always gently. 3.2.2. Ergonomic 320.250 DGSH with frequency converter Switch of the cutting speed Select the cutting speed during cutting (20–120 m. min...
3.3. Machine control 3.3.1. Cutting Open the vice of the band saw. Set the length stop to the desired length of the material. Set the desired cutting angle. Insert the material and pull it to the length stop. upnout spannen tighten povolit...
0° 3.4. Cutting pressure adjusting The band saw Ergonomic 320.250 DGSH is equipped with automatic down-feed regulator on both guiding cubes. Adjusting the down-feed regulator is performed with regulating wheel on the guiding cube.
If you cut long pieces of the material (for example rod, tube), you must use the roller conveyors for material shifting to the band saw. Contact Bomar for more information about roller conveyors Make sure the conveyor is long enough and the material cannot tip off the conveyor.
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Before welding always, switch the machine off at the main switch! The magnetic fields, which often occur during welding, may damage the controls! Square material bundle: Attention: Not all material shapes are suitable for bundle cuts. Keep the recommendation of your supplier of the saw bands for material insertion to the bundle.
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Manual version: 1.05 / Mar. 2010 Manual rev.:...
4.1. Saw band dismantling Lift the saw frame to the top position. Stop the saw frame in top position by control valve. Dismantle yellow protective cover of the saw band. The cover is clamped with two screws. Dismantle back covering sheet metal of the saw frame. The covering sheet metal is clamped with two screws with plastic head.
Turn by stretching star to the left side, release saw band stretching and pull saw band from blade wheels. Pull up the saw band from the guiding cubes. 4.2. Saw band installation Prior to installation, clean all track wheels, guide cubes and inner side of the arm thoroughly of all traces of chips and dirt.
Put the brush into the function position and screw up the holder. Install the rear protective cover of the frame. Install the yellow protective cover of the band. The arrow on the cover must match the direction of the arrow on the band. If it does not, you must turn the band round.
Open cover(s) of the wheels and check position of the saw band on the both wheels.. • If the distance between backside of the saw band and the offset wheel is 1 mm, setting is right.. • If the distance is bigger than 1 mm, or the saw band is on the offset of the wheel, set the saw band.
Tighten the stop screw on the rear side of guide cube so that the band cannot to move Release the stop screw and at the same time grip the saw band by hand and check if the hard metal guide does not put up to much resistance against the movement of the band.
4.4.5. Angular stops adjustments There are two fixed stops with adjustable screw on the console. The angular stop- points setting have to be periodically inspected to prevent inaccurate angular cuts In order to check angular stop settings, turn the arm to the fixed stop and put the protractor on the saw band and vice jaw If the angles are not set correctly, release the nut on the stop screw.
Secure the stop screw with nut and check the switch setting once more ATTENTION! If the band is stretched to the value according the TENZOMAT but the holder of thstop screw is not situated on the boundary of the red and green colour, it is necessary to stick the sticker in the correct place.
Release the nut of the stop screw and screw down the stop screw Lower the arm to the lower stop and turn on the band driver Screw out the stop screw until the band driver stops Secure the screw with nut again and check the limit switch setting once more 4.5.
Use oils with specification DIN 51517 in the gearboxes. Select the viscosity grade ISO VG according to the original oil fill. Attention: When replacing, use oils recommended by BOMAR or oils, which has comparable parameters from the other manufacturers. Do not forget, that mineral and synthetic oils must not be mixed! ...
Recommended oils and quantity according to the type of the band saw Band saw Gearbox oil Capacity Ergonomic 320.250 DGSH Paramo PP7 Shell Tivela S 320 Swarf conveyer 0,075 l Comparative table of the gearbox oils Viscosity grade Manufacturer...
Use oils with specification DIN 51524-HLP, ISO 6743-4 and viscosity grade ISO VG 46 in hydraulic aggregates. Note: When replacing, use oils recommended by BOMAR or oils, which has comparable parameters from the other manufacturers. Do not forget, that mineral and synthetic oils may not be mixed!
4.6.5. Hydraulic oil level check Note: This chapter is only for the band saws, which has hydraulic equipment Recommended type of the hydraulic oil is placed in chapter Hydraulic oils Pull up the gauge and check the state of the oil. The oil level must be situated in water- glas.
4.6.7. Adjustment of a throttle valve Switch off the machine by its main switch. Let the sawing head down at the bottom. Close the throttle valve gentl The worm screw (pos. A) must be next to the stop (pos. B), when the valve is closed Otherwise, you must loosen the worm screw, lift the plastic knob and close the throttle valve to the maximum.
4.7. Machine cleaning Clean the machine from the cooling liquid and impurities after every shift stopping. Conserve the guiding surfaces, mainly. • Clamping jaws guiding of the main and feeding vice. • The guiding of the feeder. • Loading surface of the main, feeding vice, and area under them. •...
Fasten the guiding cube to the vice and screw out the screws of both the hard metal desks. Screw out the adjusting screw of the adjustable guiding desk as far from the guide cube so that it is not possible to see it from the inner side. Now insert new hard metal guides and fasten them tightly and fasten the guide cube to the gib.
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Grip the guide cube in the vice and screw out both fastening screws of the eccentrics. Pull both guide rollers from their eccentrics. Put new guide rollers on the eccentrics and screw the eccentrics to the guide cube. Now insert a test piece of saw band (cca 15 - 20 cm) into the guide cube. Adjust both eccentrics so that the band runs in the middle of milled groove.
4.8.3. Round brush replacement If the chip removing brush is so worn, that it does not fulfil its function, the brush must be replaced. Release the nut of the brush, exchange old brush to new brush and screw on the nut of the brush.
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If the lower bearing stays on the shaft, pull of it from the shaft with two-leg puller. Check both bearings; eventually replace them for a new. Insert the retaining ring to the hole in the new stretching wheel. Insert the bearing to the hole in the wheel and push it to the retaining ring. Clean the shaft and oil it.
10. Install second bearing on the shaft and push it to the distance ring. 11. Install the washer and screw on the stretching wheel. 12. Install the saw band. Wheel replacement is ready. 4.8.5. Driving wheel replacement Dismantle the saw band. Screw of the fastening screw of the driving wheel and pull off the washer.
Install the three-leg puller on the driving wheel and pull off it from the shaft. Check, if the feather and the driving shaft are not damaged. Contact your supplier for parts replacement. If the shaft and the feather are in good order, clean them, oil them and install them on the driving shaft.
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Pull out the cooling agent tank from the machine base as far as possible. Remove the hosepipe leading the cooling agent from the connection on the pump. Unscrew four screws on the cooling pump flange and pull out the pump from the metal sheet holder.
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Manual version: 1.05 / Mar. 2010 Manual rev.:...
5.1. Mechanical problems Problem Possible causes Repair Wrongly adjusted hard metal guides. Set according to the chapter „Servicing and adjustment“ Worn hard metal guides. Replace to the chapter „Worn pieces replacement“ Wrongly adjusted cubes of the saw Set according to the chapter „Servicing and band guiding.
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Problem Possible causes Repair Worn saw band guide bearings. Check guiding bearings and if you notice some sort of excessive damage, replace them according to chapter„Worn pieces replacement“ Wrongly adjusted guiding cubes of the Set guiding cube according to chapter „Servicing saw band.
Problem Possible causes Repair The brush position and the brush cover The brush cover must be posed, in order to the is adjusted wrong – with the brush brush can be turned. cannot be turned. Backslash in driving wheel lodgement Change the driving shaft for a long one, new 12.
5.3. Hydraulic problems Problem Possible causes Repair Hydrogenerator not • reverse rotation Check the connections of each phase. supplying oil Reconnect properly connection of the electrical phases. • shortage of oil in the tank Add hydraulic oil • Oil viscosity does not correspond Change hydraulic oil.
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Poz. Název Pos. Bezeichnung Typ Hytos Typ Hykom Mng. Pos. Item Pcs. 12 dm 3 Nádrž / Behälter / Tank VÁLCOVÁ ,PLECH 0,25k W Elektromotor / Elektromotor M A -A L71 / Electromotor 400/230V ,50H z Hydrogenerátor / Hydraulikgenerator / P 2-3,3L.65017 3,3 cm /ot.
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Manual version: 1.05 / Mar. 2010 Manual rev.:...
• In die Bestellung der Ersatzteile führen Sie immer an: Maschinentyp (z. B. Ergonomic 320.250 DGSH), Serien Nr. (z. B. 125) und Baujahr (z. B. 1999). • For spare parts order, you must always to allege: type of machine (for example Ergonomic 320.250 DGSH), serial number (for example 125, see cover page) and...
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