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4.2 OPERATING PREPARATION 

   

  There are several steps will be taken before start the machine. 

(1) CHOOSE PROPER SAW BLADE : 

Select the saw blade best suited to the workpiece to be cut, Size and shape of the workpiece , and   
type of material should all be considered when selecting the saw blade to be used . There is a reference   
chart in chapter 9 which can help you to select the right saw blade and cutting conditions . 

 

(2) UNPACK THE SAW BLADE : 

Usually the saw blade is packed in 3 circle ,unpack it one circle first grip the part to release another 2   
circles gradually , tear off the saw-cap protective shield , inspect the blade teeth , make sure that the   
cutting edge of the blade teeth point to the right . If they point to the left the blade should be turned over. 

 

(3) PLACE THE SAW BLADE ONTO BOTH THE DRIVE AND DRIVEN WHEELS ---- 

a. Turn the hydraulic blade tension handle clockwise , to fully loosen the driven wheel . 
b. Open both the drive and driven wheel covers , place the saw blade onto both the drive and driven   
wheels. Check the cutting edge of the saw blade , to ensure that it point to the right. 
c. Insert the saw blade into both the left and right blade guides so that the back edge of the saw blade 
  touches the back-up roller of each guide . 
d. The back edge of the saw blade should make contact with the flange of the drive and driven wheel ,   
turn count -clockwise the hydraulic blade tension handle to tighten 

the saw blade , Then the blade 

is  

properly tensioned . 
e. Don't forget to tighten the insert adjusting screw . 

 

(4) WORKPIECE CLAMPING : 

a. Raise the saw frame , open the vise , place the workpiece on the roller table . 
b. Gently push the workpiece into the roller-feed vise, taking care not hit the feed rollers. 
c. Clamp the workpiece in vise. 

 

(5) ADJUST THE BLADE GUIDE ARM : 

Blade guide arm adjustment 

   
 

a. unlock the guide arm and carbide guides to move the guide 
arm. 

1. Turn clockwise throat flow control valve V1 to close the 
in-flow to the guide arm lock and carbide tightening. 
2. Turn counter-clockwise throat flow control valve V2 to let the 
oil out back to tank, to release the guide arm lock and carbide 
tightening. 
3. Move the guide arm to the proper position that just wide 
enough to clear the workpiece for cutting. 

       

b. lock the guide arm and carbide guides before cutting. 

1. Turn counter-clockwise throat flow control valve V1 to let the 
in-flow to the guide arm lock and carbide tightening. 
2. Turn clockwise throat flow control valve V2 to close the oil out 
back to tank, to have the guide arm locked and carbide tightened 
to the saw blade. Properly position the blade guide arms 
according  
to the diameter (or the width) of the workpiece to be cut. 

 
 

4 - 3 

Содержание H-550A

Страница 1: ...AUTOMATIC BANDSAW H 550A INSTRUCTION MANUAL MEGA MACHINE CO LTD DOC NO H550A 100 U CTRL NO 06 UPDATE 1998 07 27 DOC VER A...

Страница 2: ...lation operation lubrication maintenance and trouble shooting As MEGA MACHINE COMPANY LIMITED is constantly improving the design of its machines there may be some instance where this book differs some...

Страница 3: ...ection 3 4 4 Operation 4 1 Control Panel 4 1 4 2 Operating preparation 4 3 4 3 Manual Operation 4 4 4 4 Automatic operation 4 5 4 5 Special Operation 4 5 4 6 Break In Operation 4 5 5 Maintenance 5 1 H...

Страница 4: ...1 INTRODUCTORY ILLUSTRATIONS 1 1 Principal Parts 1 1...

Страница 5: ...n 82 105 138 180 230 260 kW Blade 5 6 Hydraulic1 5 Coolant0 1 Motor Output HP Blade 7 5 Hydraulic 2 Coolant 1 8 Hydraulic pressure bar 40 kg Net Gross 3800 4500 Weight lb Net Gross 8360 9900 Specifica...

Страница 6: ...machine as shown in the fig 2 If forklift is used then fig 3 Sufficient space should be left around the machine to allow safe handling of materials and inspection and maintenance operation Should the...

Страница 7: ...must be level and flat After the proper leveling position has been obtained anchor the machine with anchor bolts The position of anchor bolts and floor dimensions are shown in fig 4 Contact portion wi...

Страница 8: ...s they leave no lint or strings The machine as received by you has been completely drained of all oil Before any attempt is made to run it Before any motor connections are made every detail of the fol...

Страница 9: ...of index cycles when off cut pieces longer than 500mm are required Maximum 9 time stroke can be set Blade speed LED Display This blade speed tachometer indicates how fast the saw blade is running in...

Страница 10: ...rkpiece and thereafter it will descend at the designated cutting speed 10 REAR VISE SWITCH This switch control the rear vise jaws in manual mode switched to the left makes the front vise open and swit...

Страница 11: ...of index cycles when off cut pieces longer than 500mm are required Maximum 9 time stroke can be set Blade speed LED Display This blade speed tachometer indicates how fast the saw blade is running in...

Страница 12: ...tched to the right makes the front vise clamp 11 MANUAL FEED FORWARD BUTTON When this button is pressed the workpiece moves forward The workpiece stops advancing when the button is released NOTE Turn...

Страница 13: ...each guide d The back edge of the saw blade should make contact with the flange of the drive and driven wheel turn count clockwise the hydraulic blade tension handle to tighten the saw blade Then the...

Страница 14: ...the off cut and carry out all the procedures as described above in 4 2 Operating Preparation 1 Depress the RAISE button to lift the saw frame until the cutting edge of the saw blade clears the workpie...

Страница 15: ...ng a workpiece if the saw blade suddenly jams in the workpiece depress the FRAME RAISE button to lift the saw frame immediately 2 The saw blade jamming in the workpiece is most likely because of a Sli...

Страница 16: ...swinging up and down in line p above procedures have been done in our factory before machine dispatched now for checking test please dry run the machine by raising the saw frame to the very top positi...

Страница 17: ...ke sure tighten the set screw after zeroing zeroing knob b After zeroing knob a turn knob a at 5 position and let the machine running in the same condition as previous did dry running turn knob b whil...

Страница 18: ...5 MAINTENANCE The maintenance of this machine is divided three portions as following 5 1 HYDRAULIC CIRCUIT 5 1...

Страница 19: ...n Device DAPHNE FLUID 32T Few Twice a year 2 Drive Wheel Bearing Grease Few Thrice a year 3 Guide Slides Shell Tonna 33 Few Oil daily 4 Transmission Gear Box DAPHNE GEAR LUBE 320 Few Twice a year 5 Cu...

Страница 20: ...the life of the band Too low a speed could cause overfeeding Always reduce the speed when cutting dry 7 Break in Procedure The normal feed rate should be reduced to about 1 2 for the first 50 square...

Страница 21: ...is determined by a cubed factor so increasing the distance between the guides by a factor of 2 decreases the beam strength by a factor of 2 3 or 8 You lose a lot very quickly 16 Brushes A good set of...

Страница 22: ...ct Excessively hard material surface Soften material surface Excessive cutting rate Reduce cutting rate Non annealed workpiece Replace with suitable workpiece Insufficient or lean cutting fluid Add fl...

Страница 23: ...nect 2 Turn on 3 Push reset button a Load workpiece b Depress FRAME RAISE button c Depress QUICK APPROACH switch 2 The saw frame descends out of sequence 1 Solenoid valve blocked 2 Piping leakage 3 Pa...

Страница 24: ...inate breakdown 2 Press Blade ascending button 1 2 06 Saw frame touches fast to lower limit switch abnormal 1 Eliminate breakdown 2 Press Blade ascending button 1 2 07 Sensor switch abnormal 1 Elimina...

Страница 25: ...to leave unused overlong 5 minutes 30 Auto cutting piece counting over 1 Press Blade ascending button 2 Press the key CLEAR 1 2 CLEAR 31 Blade descending button jammed 1 Eliminate breakdown 2 Press Bl...

Страница 26: ...000 31000 50000 27000 50000 26000 50000 26000 44000 25000 42000 19000 31000 16000 23000 15000 23000 10000 20000 10000 20000 10000 20000 NOTE 1 All conditions described above are based on the use of hi...

Страница 27: ...210 190 215 200 230 200 225 230 250 190 210 190 230 220 240 170 190 180 200 200 220 210 230 180 210 180 210 160 190 190 220 190 220 180 215 150 180 200 230 210 240 175 200 180 220 210 250 220 260 240...

Страница 28: ...1 special W 1 extra W 1 regular H 12 H 13 H 21 H 22 H 24 S 1 S 2 S 5 L 6 L 7 217 241 217 241 228 255 187 207 207 228 156 187 156 196 156 196 205 228 217 241 177 212 173 228 190 230 180 230 140 170 75...

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