Related Manuals for CHESTER HV128
Summary of Contents for CHESTER HV128
- Page 1 HV128 Bandsaw Instruction Manual Chester UK Ltd Clwyd Close, Hawarden Industrial Park Hawarden, Nr Chester Flintshire. CH5 3PZ Tel: 01244 531631 Email: sales@chesteruk.net www.chesteruk.net...
- Page 2 IMPORTANT SAFETY FIRST ALL MACHINES ARE DANGEROUS 1. Use the correct tool for the job at hand never make a machine do a job it was not designed for. 2. Never force the tool in the machine it will do the quicker and safer at the correct rate. 3. Always use clamps or vices to secure work – your hand is not strong enough! 4. When changing tools or work pieces always disconnect the machine first. 5. Service the machine regularly; a correctly operating machine is a safer machine. 6. Always replace belt covers before starting the machine. 7. Understand the machine fully before operation and always read the manual. 8. Get to know the machines limitations and applications. 9. Ensure that the machine is securely bolted to the bench and that the bench is securely bolted to the ground. TAKE GREAT CARE WHEN OPERATING THIS MACHINE TO PROTECT YOUR BODY 1. Always wear safety glasses – everyday glasses are not suitable. 2. Dust can be caused when machining certain materials, always wear a mask. 3. Make sure you are not wearing any loose clothing such as ties, rings, bracelets that may get caught in the moving parts of the machine. 4. Keep a proper footing and balance whilst operating the machine. 5. Never leave cleaning rags, etc on or near the machine. Chester UK HV128 Bandsaw ...
- Page 3 SAFETY FIRST ELECTRICS 1. All electrical tools must be earthed. 2. Never use electrical tools in damp or wet environment. 3. Make sure the machine is in the off position before switching on at the mains. 4. Always immobilise the machine before servicing or setting up work in the machine. 5. Great care should be taken when using coolant fluid with machine tools. 6. Ensure the machine is correctly connected and a fuse of the proper rating is used. CHILDREN 1. Keep children away from machines, if necessary fit safety locks to the machine and mains switches. 2. Never use machinery whilst talking to visitors, always concentrate on the job in hand! REMEMBER ALL MACHINES ARE DANGEROUS IF NOT USED CORRECTLY! Chester UK HV128 Bandsaw ...
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Page 4: Table Of Contents
CONTENTS 1. Machine Specifications........................4 Recommended Speeds for Cutting of Various Materials..............4 2. 3. Troubleshooting..........................5 Features..............................6 4. Delivery & Installation........................6 5. 6. Minimum Space for Machine Operation...................7 Operation............................7 7. 8. Telltale Chips.............................9 9. Machine Elements Adjustment......................9 10. Maintenance.............................11 11. Lubrication............................12 12. Part Diagram............................13 13. Part List............................14 14. Circuit Diagrams & Electrical Specifications..................18 Chester UK HV128 Bandsaw ... -
Page 5: Machine Specifications
249 sets (CE 190 sets) RECOMMENDED SPEEDS FOR CUTTING OF VARIOUS MATERIALS MOTOR PULLEY SAW PULLEY MATERIAL CUTTING CHART Material Speed (SFM) Belt Groove Used 50Hz 60Hz Motor Pulley Saw Pulley Tool, Stainless 19 MPM 24 MPM Small A Large D or Alloy Steel (65 FPM) (80 FPM) Bearing Bronzes, Mild Steel, 28 MPM 36 MPM Medium B Medium E Hard Brass or Bronze (95 FPM) (120 FPM) Soft Brass, Aluminium 50 MPM 60 MPM Large C Small F or Other Light Materials (165 FPM) (200 FPM) Chester UK HV128 Bandsaw ... -
Page 6: Troubleshooting
3. Clamp work more securely. 4. Blade is too fine for the work. 4. Use a course TPI blade. Motor Overheating 1. Blade tension is too high. 1. Reduce the blade tension. 2. Drive belt tension is too high. 2. Reduce the drive belt tension. 3. Blade is too course. 3. Use a smaller TPI blade. 4. Blade is too fine. 4. Use a courser TPI blade. 5. Gears need lubrication. 5. Lubricate gears. 6. Cut is binding blade. 6. Decrease the feed and speed. Bad, Crooked or Rough Cuts 1. Feed pressure is too great. 1. Adjust spring to reduce pressure. 2. Guide pivots are misaligned. 2. Adjust guide pivots. 3. Inadequate blade tension. 3. Increase blade tension. 4. Blade is dull. 4. Replace blade. 5. Incorrect speed. 5. Adjust speed. 6. Blade guides are spaced out too much. 6. Adjust guide spacing. 7. Blade guide assembly is loose. 7. Tighten guide assembly. 8. Blade is too course. 8. Use a finer TPI blade. Blade is Twisting 1. Cut is binding blade. 1. Decrease feed pressure. 2. Blade tension is too high. 2. Decrease the blade tension. Chester UK HV128 Bandsaw ... -
Page 7: Features
Transport after unpacking, please use a heavyduty fibre belt in order to lift the machine. FIG. B TRANSPORT RECOMMENDATIONS 1. Tighten all locks before operating. 2. Always keep a proper footing & balance while moving the bandsaw. 3. Disconnect the power supply, and make sure the machine is properly grounded. 4. Check the blade making sure that it is running in a counterclockwise direction 5. Keep the bandsaw out of direct sunlight, dust, wet or water. INSTALLATION 1. The saw may be mounted on a work bench or stand using six bolts. The rear end of the base must be mounted on the rear of the stand or bench to permit the 2. vertical operation for this bandsaw. Chester UK HV128 Bandsaw ... -
Page 8: Minimum Space For Machine Operation
Adjust the motor automatic stop key so the motor will stop when the workpiece is cut off. 3. Adjust the stock stop to the desired length position. 4. Open the vice to accept the workpiece to be cut. If the piece is long in length, it will require some support. 5. Rotate the hand wheel to tighten the work piece. 6. Turn on the switch, and change the blade speed to best suit the workpiece being cut. Let the saw head down slowly to touch the workpiece lest the blade should be broken by 7. excessive pressure. Rotate the adjusting rod to obtain the correct pressure. 8. HELPFUL CUTTING HINTS The harder the material, the slower the cutting speed should be. 1. Use of cutting oil is recommended when the blade speed is higher. 2. To increase the feed, turn the feed screw adjustment (at the left of the base) counter clockwise: 3. to decrease turn clockwise. Do not adjust more than one turn at a time. Chester UK HV128 Bandsaw ... - Page 9 6. Adjust the blade tension knob clockwise until correct, as to assure no slippage on the blade occurs. Do not tighten excessively. 7. Place 23 drops of oil on the table. 8. Replace the blade guard. STARTING THE SAW 1. Never operate the saw without the blade guards in place. 2. Be sure the blade is not in contact with the work when the motor is started. 3. Start the motor; allow the saw to reach full speed. 4. Do not drop or force the head. Provide the cutting force by letting the head down slowly into the work. 5. Correct feed is important, excessive pressure can break the blade or stall the saw. Insufficient pressure dulls the blade rapidly. 6. Never use a new blade to complete previously started cut. Do not start cutting on the sharp corners. 7. Chester UK HV128 Bandsaw ...
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Page 10: Telltale Chips
Turn the blade tension adjustable knob counter clockwise so that the blade might loosen a little. 3. Adjust the hexhole screw in the hole of the slide block, until the front blade wheel rises backward a little, so that the blade will be kept in position. 4. Tighten the blade tension adjustable knob until the blade obtains the correct tension. 5. Check the tracking by turning on the bandsaw. If the blade slides forward, go back to step 4 until the rear blade touches the flange of the blade wheel. 6. Disconnect the power to the machine. 7. Replace the blade guards. Chester UK HV128 Bandsaw ... - Page 11 Attention: This is the most important adjustment on your saw. It is impossible to get satisfactory work from your saw if the blade guides are not properly adjusted. Note: There should be from 0.000 (just touching) 0.001 clearance between the blade and guide bearing. To obtain this clearance adjust as follows: 1. Each of the two guide bearings is mounted to an eccentric bushing that can be adjusted. Loosen the nut while holding the bolt with an allen key. 2. 3. Position the eccentric by turning the bolt to the desired position of clearance. (The blade must be completely vertical while it is cutting). 4. Tighten the nut, then the adjustable blade guide bearing will be fixed. 5. Adjust the second blade guide bearing in the same manner. BLADE TENSION ADJUSTMENT 1. Make sure the motor is shut off. 2. Press the blade lightly with left hand, make the rear blade against the flange of the blade wheel and feel the blade tension (so that the blade does not come off from the wheel). 3. Adjust the blade tension adjustable knob with the right hand, until the blade obtains the correct tension. FIG. 1 Chester UK HV128 Bandsaw ...
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Page 12: Maintenance
If the temperature of the spindle caused overheating or a strange noise, stop the machine immediately to check. (c) Keep the work area clean, release vice, cutter, workpiece from table, switch off the power source and clean chip / dust away from the machine. Then follow instructions on lubrication before leaving. 2. Weekly Maintenance (a) Clean and coat the leading screw with oil. (b) Check to see if the sliding surfaces and turning parts lack lubricant (lubricate if so). Monthly Maintenance 3. (a) Check if the fixed parts are loose. (b) Lubricate bearing, worm and the worm shaft to avoid wear. Chester UK HV128 Bandsaw ... -
Page 13: Lubrication
Yearly Maintenance 4. (a) Adjust the table to a horizontal position for maintaining the accuracy. (b) Check the electric cord, plug and switches at least once a year. This will help to avoid loosening or wear. LUBRICATION 1. Clean the bandsaw after each operation and coat with rustless oil. 2. Use SAE30 oil to lubricate components. 3. Lubricate the lead screw on the vice as required. 4. The drive gears are in an oil bath, they will not require a lubricant change more often than once a year, unless a leak or over heating. Chester UK HV128 Bandsaw ... -
Page 14: Part Diagram
PARTS DIAGRAM Chester UK HV128 Bandsaw ... -
Page 15: Part List
1 38 S708 Cross Round Head Screw 3/16" x 3/8" 2 39 3039_1 Scale 1 43 3043 Wire Protector Black Color 1 44 Power Cable 1 45 3045 Spring Handle Bracket 1 45_1 3045_1 Spring Handle Bracket 1 46 3046 Spring Adjusting Screw 1 47 3047 Spring 1 48 S708 Cross Round Head Screw 3/16" x 3/8"L 4 Chester UK HV128 Bandsaw ... - Page 16 73 K006 Key 5 x 5 x 25L 2 74 K008 Key 5 x 5 x 30L 1 75 S006 Hex. Head Screw 1/4" x 1/2"L 10 76 3076 Switch Cut Off Tip For ON OFF Switch 1 76 3076_1 Switch Cut Off Tip For Toggle Switch 1 76 3076_2 Switch Cut Off Tip 1 77 3077 Blade Wheel (Rear) 1 77 3077_1 Blade Wheel (Rear) For Customer Request Only 1 Chester UK HV128 Bandsaw ...
- Page 17 2 105 P020 Spring Pin § 4 x 20L 1 106 3106 Sliding Plate Draw Block 1 106 3106_1 Assembly Drawing 1 107 3107_1 Blade Wheel Shaft 1 108 3108 Shaft Block 1 109 3109 Blade Tension Sliding Guides 2 110 3110 Motor Pulley Cover 1 111_1 3111S_1 Motor Pulley Cover Plastic 1 112 Belt A22 1 Chester UK HV128 Bandsaw ...
- Page 18 Hex. Head Screw 5/16" x 1"L 1 200 S006 Hex. Head Screw 1/4" x 1/2"L 1 201 N007 Hex. Nut 5/16" 1 202 N003 Hex. Nut 1/4" 1 203 Toggle Switch 1 204 3131 Switch Cover 1 205 Switch 1 206 Hex. Nut 1 207 32312 Position Pin 1 208 32310 Plum Handle 1 Chester UK HV128 Bandsaw ...
- Page 19 CIRCUIT DIAGRAM ELECTRICAL SPECIFICATION Chester UK HV128 Bandsaw ...
- Page 20 CIRCUIT DIAGRAM ELECTRICAL SPECIFICATION Chester UK HV128 Bandsaw ...
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