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Amada RG35S–100 Operator's Manual

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PRESS BRAKE (ZII)
RG35S–100
OPERATOR'S MANUAL
E02
RG25-125-
-200510

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  • Page 1 PRESS BRAKE (ZII) RG35S–100 OPERATOR'S MANUAL RG25-125- -200510...
  • Page 2 Operator's Manual: Press Brake (ZII) RG35S-100 © 2005 by AMADA CO., LTD. No part of this publication may be photocopied or otherwise reproduced with- out the prior written permission of AMADA CO., LTD. Printed in Japan...

  • Page 3: Table Of Contents

    CONTENTS Part I Safety..................I-1 1. Safety rules ................I-2 2. DANGER and WARNING plates........... I-10 Part II Description................II-1 1. Functions ................II-2 2. General view ................II-3 3. Specifications.................II-5 4. Dimensions ................II-6 5. Standard accessories ............II-9 6. Options..................II-10 Part III Installation................
  • Page 4 Part V Operation ................V-1 1. Inspection before start of day’s work ........V-3 2. Preparing for operation ............V-3 3. Turning on power ..............V-5 4. Removing tools ..............V-6 4-1. Preparing for removing tools...........V-6 4-2. Removing punches ............V-8 4-3. Removing dies ..............V-9 5. Installing tools ............... V-11 5-1.
  • Page 5 Part VI Maintenance...............VI-1 1. Inspection before start of day’s work ........VI-2 2. Maintaining hydraulic system..........VI-4 2-1. Checking hydraulic oil level..........VI-4 2-2. Changing hydraulic oil............ VI-5 2-3. Maintaining tools ............VI-6 3. Lubrication ................VI-7 4. Hydraulic circuit diagrams............. VI-8 4-1.

  • Page 7: Part I Safety

    Part Safety 1. Safety rules ..................I-2 2. DANGER and WARNING plates..........I-10...

  • Page 8: Safety Rules

    1. SAFETY RULES Observe these safety rules to prevent injuries and accidents: a) Never modify the machine. If the control circuit or other part of the machine is modified, the ram may malfunction. b) Whenever the machine is not in use, remove the key from the POWER ON/OFF keyswitch, and hand it to the chief operator for custody.
  • Page 9 h) When changing the tools, strictly observe the following rules: • Before installing and removing the dies, turn the POWER ON/OFF keyswitch to OFF, remove the key from the keyswitch, and keep it by yourself. (Install and remove the dies as described in “4.
  • Page 10 If your machine is equipped with optional one-touch punch holders, keep the following rules: • When applying pressure to the ONE-TOUCH PUNCH HOLDER LEVER POSITIONS punches or bending the worksheet, POSITION POSITION POSITION turn the punch holder levers to the position ◯...
  • Page 11 Before adjusting the stoppers, turn the POWER ON/OFF keyswitch to OFF, remove the key from the keyswitch, and keep it by yourself. Be sure to adjust the stoppers from the rear of the machine. k) Correctly set the position where the bending speed of the ram is to be changed.
  • Page 12 Otherwise the worksheet may be pushed forward when the backgauge moves forward. n) Use Amada genuine punches and dies on the machine. The machine performs various controls by reference to the Amada genuine punches and dies. Non-genuine punches and dies are different in brittleness and allowable tonnage from the genuine punches and dies.
  • Page 13 p) When bending a large worksheet, be careful of its springing upward. Hold one side of the worksheet or otherwise be ready for its springing upward. q) Before bending each worksheet, check that the tools are securely installed and tightened. With a sharp bend or U-bend, the punches and dies may eat into the worksheet and fall together with the worksheet.
  • Page 14 When rebending the same worksheet, align the nose line of the punches with the bend line of the worksheet. If the worksheet is rebent without aligning the lines, abnormal noise may be produced, and the tools may break and scatter in a dangerous manner. s) Whenever trouble occurs during the operation of the machine, press one of the EMERGENCY STOP buttons, turn the POWER ON/OFF keyswitch to OFF, remove the key from the keyswitch, keep it by yourself, and fix the...
  • Page 15 When relocating the machine, ask AMADA about how to move the machine. If moved incorrectly, the machine may turn over.

  • Page 16: Danger And Warning Plates

    2. DANGER AND WARNING PLATES Keep the DANGER and WARNING plates well noticeable and never remove them. I-10...
  • Page 17 Hazard seriousness level Indicates an imminently hazardous situation DANGER which, if not avoided, will result in death or serious injury. Indicates a potentially hazardous situation WARNING which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation CAUTION which, if not avoided, may result in minor or moderate injury.
  • Page 18 I-12...

  • Page 19: Description

    Part Description 1. Functions ..................II-2 2. General view ................II-3 3. Specifications................II-5 4. Dimensions ................. II-6 5. Standard accessories ..............II-9 6. Options..................II-10 II-1...

  • Page 20: Functions

    1. FUNCTIONS This machine is a hydraulic press brake of the central pressure application and parallel rising type. It has the following features: • The hydraulic circuit is simplified to minimize oil leakage and facilitate maintenance. • A main cylinder is installed at the center of the ram to minimize the distortion produced in the upper and lower beams during pressure application.

  • Page 21: General View

    2. GENERAL VIEW NOTE This drawing shows the general view of the RG50 machine. REAR GUARD HYDRAULIC UNIT Hydraulic oil tank and hydraulic drive unit are located at rear of lower beam. EMERGENCY EMERGENCY STOP BUTTON STOP BUTTON FRAME UPPER BEAM ELECTRICAL ENCLOSURE Power distribution and control circuits are built in.
  • Page 22 II-4...

  • Page 23: Specifications

    3. SPECIFICATIONS Metric unit system (International system of units) Model Item RG35S RG50 RG80 RG100 Maximum bend length (mm) 1250 2085 2505 3100 Press capacity (kN) Stroke length (mm) Open height without punch holders (mm) Approach speed at 50/60 Hz (mm/sec) 46/55 38/45 38/45...
  • Page 24 English unit system Model Item RG35S RG50 RG80 RG100 Maximum bend length (in.) 49.2 82.1 98.6 122.0 Press capacity (US tonf) 38.6 55.1 88.2 110.2 Stroke length (in.) Open height without punch holders (in.) 14.6 14.6 14.6 14.6 Approach speed at 50/60 Hz (ips) 1.8/2.2 1.5/1.8 1.5/1.8...

  • Page 25: Dimensions

    4. DIMENSIONS 390 mm 225 mm {15.4 in.} {8.9 in.} 60 mm {2.4 in.} 60 mm {2.4 in.} *Depth of RG35S, RG50, RG80 **Depth of RG100 II-7...
  • Page 26 Unit: mm Model RG35S 1200 1020 1955 1495 1800 1355 1745 RG50 2000 1520 1910 1495 1820 1670 2025 2410 RG80 2400 2050 2065 1495 1920 2240 2515 2895 RG100 3000 2550 1035 2305 1555 2110 2750 3065 1090 3445 Unit: in.

  • Page 27: Standard Accessories

    5. STANDARD ACCESSORIES Item Description Applicable model Tool box 30 mm Single-ended wrench 13 mm 45° offset box 14 × 17 mm wrench Tool set 8 mm, long type Allen wrench 5 mm φ20 × 200 mm Brass bar Hammer 1/2 pound 26 L RG35S...

  • Page 28: Options

    6. OPTIONS Name Function Auto-backgauge system • Can set worksheet contact positions (bending positions) for up to 99 processes. • Allows continuous bending by programmed operation. • Displays set values and current position of backgauge by LEDs. • Has such functions as elongation compensation, backlash compensation, and timing.

  • Page 29: Installation

    2-5. Leveling................III-6 2-6. Supplying hydraulic oil ............III-8 2-7. Supplying electric power ............III-8 When the machine is delivered to you directly from AMADA, it is usually transported by the specialized carrier. Instruct them where to install the machine. Select such a machine installation place where the space required for...

  • Page 30: Environmental Conditions

    1. SUMMARY 1-1. Environmental conditions • Keep the machine at least 10 m {33 ft} away from a welder or any other equipment that may produce electrical noise and magnetic fields. • Where the ambient temperature is not higher than 5 °C {41 °F}, keep the machine and hydraulic pump motor energized during the day's work.

  • Page 31: Things To Be Supplied By Customer

    1-3. Things to be supplied by customer Primary power cable Four-conductor VCT cable (600V polyvinyl chloride insulated cabtyre cable) 380/400/460 V specification Current carrying Model Each conductor size capacity RG35S 9.1 A 2 mm RG50 13.2 A RG80 3.5 mm 23.0 A RG100 8 mm...

  • Page 32: Installation Procedures

    2. INSTALLATION PROCEDURES 2-1. Location Select a place where an ample space can be secured for the machine by paying full attention to the required floor area and the following items: • There must be no pillars and other obstacles where the tools are installed and removed.

  • Page 33: Lifting

    2-2. Lifting The machine requires special lifting WARNING devices. Never use steel pipes or apply wire rope slings directly to the frame of the machine. Doing so is not only dangerous, but also damages the machine. If it is necessary to lift the machine for layout change, for example, ask a qualified contractor to perform the work.

  • Page 34: Foundation

    Before carrying the machine to the location, execute the foundation work by referring to the foundation drawing supplied by AMADA. If the ground is soft with a bearing capacity of 49 kN/m {0.51 US tonf/ft...
  • Page 35 Levelness in front-back direction Place a stretch bar (or die holder) on the two leveling pins inside each of the left and right frames of the machine. FRONT REAR SPIRIT LEVEL DIE HOLDER LEVELING PINS Insert a thickness gauge between the front or rear leveling pin and the stretch bar.

  • Page 36: Supplying Hydraulic Oil

    26 L {6.9 US gal} RG50, RG80 51 L {13.5 US gal} RG100 65 L {17.2 US gal} Recommended hydraulic oil: Amada Oil A-110 Esso Nuto H46 Mobil DTE 25 Shell Tellus Oil 46 (ISO VG46 equivalent) The hydraulic oil Super Hyrando 56 of Nippon Oil Co., Ltd. is delivered with the machine.
  • Page 37 Checking rotation direction of hydraulic pump motor To check the rotation direction of the WARNING hydraulic pump motor, do not get any part of your body or clothing too close to any rotating parts (like the coupling of the motor to the pump). If you have any part of your body or clothing caught in a rotating part, you may get hurt.
  • Page 38 NOTICE Supply electric power to the machine from a source different from that of a welder or any other equipment that produces electrical noise. Use a welder, electric drill, sander, or grinder at least 10 m {33 ft} away from the machine. The type of primary power cable varies with machine model.

  • Page 39: Controls

    Part Controls 1. Controls on electrical enclosure............ IV-2 2. Controls on upper beam ..............IV-3 3. Hydraulic equipment controls ............ IV-4 4. Other controls ................IV-6 IV-1...

  • Page 40: Controls On Electrical Enclosure

    1. CONTROLS ON ELECTRICAL ENCLOSURE [6] MACHINE CIRCUIT BREAKER [2] POWER LAMP [1] POWER ON/OFF KEYSWITCH [5] EMERGENCY STOP BUTTON [4] HYD. OFF BUTTON [3] HYD. ON BUTTON [1] POWER ON/OFF keyswitch Used to turn on and off the power of the machine. [2] POWER lamp Illuminates to indicate that the machine circuit breaker is turned to ON to supply electric power to the machine.

  • Page 41: Controls On Upper Beam

    2. CONTROLS ON UPPER BEAM (Not installed on RG35S) [1] EMERGENCY lamp Illuminates to indicate that the machine is under the emergency stop condition. [2] DOWN button Pressed to force down the ram. [3] EMERGENCY STOP button or buttons Pressed in an emergency to stop all motions of the machine. When pressed and locked, the EMERGENCY lamp is illuminated.

  • Page 42: Hydraulic Equipment Controls

    3. HYDRAULIC EQUIPMENT CONTROLS [1] Pressure adjusting knob (Regulator) Used to adjust the pressure applied between the punches and dies. Turned counterclockwise (–) to decrease the pressure and clockwise (+) to increase the pressure. To obtain the maximum press capacity, usually keep the knob turned fully clockwise (+).
  • Page 43 [3] Multiple opening limit setting lever Used to set the multiple opening limit (stop position) of the ram. Open the ram to the position where you want to stop the ram, and turn down the lever to set the stop position. Turn up the lever to clear the stop position and open the ram to the maximum opening limit.

  • Page 44: Other Controls

    4. OTHER CONTROLS [2] PEDAL [2] PEDAL STOPPER STOPPER [1] BAR PEDAL [1] BAR PEDAL [1] Bar pedal Pressed to adjust the ram approach speed or stop the ram mid-stroke. The ram closes to the multiple closing limit when the bar pedal is fully pressed and opens to the multiple opening limit or maximum opening limit when the bar pedal is released.

  • Page 45: Operation

    Part Operation 1. Inspection before start of day’s work .......... V-3 2. Preparing for operation ............... V-3 3. Turning on power ................ V-5 4. Removing tools ................V-6 4-1. Preparing for removing tools ..........V-6 4-2. Removing punches .............. V-8 4-3. Removing dies ..............V-9 5.
  • Page 46 7-2-3. Installing and removing rear clamping plates....V-29 8. Aligning tools ................V-32 8-1. RG35S ................V-32 8-2. RG50, RG80, and RG100........... V-34 9. Setting tool origin ............... V-37 10. Bending operation..............V-38 10-1. Setting rising speed change position ........ V-38 10-2.

  • Page 47: Inspection Before Start Of Day'swork

    1. INSPECTION BEFORE START OF DAY’S WORK Inspection before the start of the day's work is very important for the safe and trouble-free operation of the machine. Before starting its operation, inspect the machine as described in “1. Inspection before start of day’s work”...
  • Page 48 Turn the cut-off valve knob fully counterclockwise to enable the pressure gauge. Turn the pressure adjusting knob fully clockwise (+).

  • Page 49: Turning On Power

    3. TURNING ON POWER Start the machine as described below. Turn on the shop circuit breaker. Turn the machine circuit breaker to ON. The POWER lamp illuminates. Insert the key in the POWER ON/OFF keyswitch, and turn the keyswitch to ON. Push back the bar pedal lock lever, except RG35S.

  • Page 50: Removing Tools

    4. REMOVING TOOLS Never put your hand or hands between the DANGER punches and dies. When changing the tools, strictly observe the following cautions: Before removing the dies, turn the POWER ON/OFF keyswitch to OFF, remove the key from the keyswitch, and keep it by yourself.
  • Page 51 With the bar pedal fully pressed, turn the multiple closing limit setting handwheel clockwise to set the height between the punch holders and die H + 2 to 3 mm holders to the 2 to 3mm 2 to 3 mm 2 to 3 mm {0.08 to 0.12 in.} (0.08 to 0.12 in.)

  • Page 52: Removing Punches

    10 To perform the subsequent tasks safely, press the HYD. OFF button, turn the POWER ON/OFF keyswitch to OFF, and remove the key from the keyswitch. 4-2. Removing punches When removing the punch in step 1, do WARNING not support it from below with your hand as shown below.

  • Page 53: Removing Dies

    When optional one-touch punch holders (refer to page V-23) are available: Turn the punch holder lever or levers counterclockwise as shown right. Slide the punch sideways to remove it. 4-3. Removing dies After removing the punches, remove the dies from the ram as described below.
  • Page 54 Removing 1V-dies Loosen the front die-block fixing bolts, and remove the die together with the die block. NOTICE The rear clamping plates of the ram and die blocks establish the reference surface for aligning the punches and dies. Never loosen them. CLAMPING 1V-DIE PLATES...

  • Page 55: Installing Tools

    5. INSTALLING TOOLS Never put your hand or hands between the WARNING punches and dies. When changing the tools, strictly observe the following cautions: Before installing the dies, turn the POWER ON/OFF keyswitch to OFF, remove the key from the keyswitch, and keep it by yourself.

  • Page 56: Installing Dies

    5-2. Installing dies Install the dies on the ram as described below. Installing 2V-dies NOTICE REAR Install 2V-dies so that the V-groove to be used faces STEP the rear of the machine by considering safety in the FRONT event of die breakage. When the die holders are (OPERATOR SIDE) installed with the step facing...
  • Page 57 Installing 1V-dies for forming sashes Install the 1V-dies for forming sashes as described for the 2V-dies on the previous page. 1V-DIE (FOR FORMING SASHES) DIE HOLDER DIE FIXING BOLT DIE HOLDER FIXING BOLT Installing 1V-dies NOTICE The rear clamping plates of the ram and die blocks establish the reference surface for aligning the punches and dies.

  • Page 58: Installing Punches

    5-3. Installing punches When installing a punch, do not support it WARNING from below with your hand as shown below. Otherwise you may get your hand or fingers pinched. After installing the dies, install the punches to the punch holders as described below.
  • Page 59 When optional one-touch punch holders (refer to page V-23) are available: Insert the fall prevention tongue of the punch into the fall prevention groove of the clamping plate or plates as shown lower left, and slide the punch into position. Tighten the punch holder lever or levers clockwise to prevent the punch from as shown lower right.

  • Page 60: Preparing For Special Bending

    6. PREPARING FOR SPECIAL BENDING 6-1. Installing and removing punch holders When special-shaped punches are used or when a worksheet comes into contact with punch holders during bending, the punch holders may be removed from the upper beam for bending the worksheet. Install and remove the punch holders as described below.

  • Page 61: Installing Punch Holders

    6-1-2. INSTALLING PUNCH HOLDERS NOTE The numbers that specify their installation position of the punch holders are marked on the punch NUMBERS holders and upper beam. Install each punch holder in the position that matches its marked number. Turn the POWER ON/OFF keyswitch to OFF, and remove the key from the...

  • Page 62: Installing Punches Rearside Front

    Place a worksheet along the entire length of the dies, clear the PRESSURE GAUGE pedal stopper, and press the bar pedal to apply a pressure lower than the allowable tonnage of the tools and bring the punch holders into tight contact with the upper beam.

  • Page 63: Installing Wide Dies

    Remove the fixing bolts of the clamping plate of each punch holder, and remove the clamping plate. Install the clamping plates at the rear of FRONT the punch holders, and fasten them with the fixing bolts. Install the punches. (Refer to “5. Installing tools” in this Part.) 6-3.

  • Page 64: Other Uses

    7. OTHER USES 7-1. Adjusting punch holders If the worksheet is not bent to a uniform angle along the entire bend length, adjust the punch holders as described below. Before adjusting the punch CLAMPING BOLTS holder, record the current value of the scale marked WEDGE FIXING on the wedge.
  • Page 65 SCALE Apply the accessory brass bar to either of WEDGE the left and right sides STRIKE of the wedge, and strike it with a BRASS BAR hammer. NOTE HAMMER To bend the BENDING TO ACUTE ANGLE worksheet to an acute angle, strike the brass bar from right to left facing the front of the...
  • Page 66 Actually bend the worksheet to check that the bend angle is uniform. If the bend angle is not uniform, repeat the procedure from the beginning. V-22...

  • Page 67: Using One-Touch Punch Holders (Option

    7-2. Using one-touch punch holders (option) Names of parts WEDGE FIXING BOLT CLAMPING BOLT UNCLAMP STOPPER PIN CLAMP STOPPER PIN SCALE WEDGE SUPPORT FRONT CLAMPING PLATE REAR FIXING BOLTS PUNCH HOLDER LEVER REAR CLAMPING PLATE FRONT FIXING BOLT FALL PREVENTION PUNCH HOLDER MECHANISM V-23...
  • Page 68 Punch holder lever positions ONE-TOUCH PUNCH HOLDER LEVER POSITIONS POSITION POSITION POSITION POSITIONS FOR OPERATING LEVER AND INSTALLING AND REMOVING PUNCHES Position ◯ Turn the lever to this position to install and remove the punches by sliding them sideways. NOTE When the lever is turned to the position ◯...

  • Page 69: Installing And Removing Punches From Front

    7-2-1. INSTALLING AND REMOVING PUNCHES FROM FRONT Before installing and removing the WARNING punches, turn the POWER ON/OFF keyswitch to OFF, remove the key from the keyswitch, and keep it by yourself. Installing punches from front If the punch is 100 mm {4 in.} or more in WARNING length, do not install it from the front of the machine.
  • Page 70 Turn the punch holder LEVER POSITION lever clockwise to the position ◯ , and turn up the unclamp stopper pin. UNCLAMP STOPPER PIN After positioning the punch, turn the punch holder lever clockwise to the position ◯ to clamp the punch. Install the punch as described in “5-3.
  • Page 71 Removing punches from front If the punch is 100 mm {4 in.} or more in WARNING length, do not remove it from the front of the machine. You cannot safely support it with your hand or hands. Turn down the UNCLAMP unclamp stopper pin, STOPPER PIN...

  • Page 72: Installing And Removing Punches By Sliding Them

    7-2-2. INSTALLING AND REMOVING PUNCHES BY SLIDING THEM ALONG GROOVE OF REAR CLAMPING PLATES Before installing and removing the WARNING punches, turn the POWER ON/OFF keyswitch to OFF, remove the key from the keyswitch, and keep it by yourself. Installing punches in rear clamping plates Insert the fall prevention tongue of the punch into the fall...

  • Page 73: Installing And Removing Rear Clamping Plates

    Removing punches from rear clamping plates When loosening the rear fixing bolts, do WARNING not turn them counterclockwise by more than one and a half turns. If the bolts are turned by more than one and a half turns, the rear fall prevention mechanism does not operate, allowing the punch to fall in a dangerous manner.
  • Page 74 Turn the rear fixing REAR FIXING BOLT bolts counterclockwise with BOLT COLLAR an Allen wrench, and remove them from the rear fixing nuts. Remove the bolt REAR FIXING BOLT collars from the front clamping plate, lift the punch holder, and BOLT COLLAR remove the rear clamping plate.
  • Page 75 Installing rear clamping plates Do not turn the rear fixing bolts WARNING counterclockwise by more than one turn from the finger-tightened position. If the bolts are turned by more than one turn, the rear fall prevention mechanism may not operate, allowing the punch to fall in a dangerous manner.

  • Page 76: Aligning Tools

    8. ALIGNING TOOLS Never put your hand or hands between the WARNING punches and dies. Apply to the installed tools a pressure that is not higher than the allowable tonnage marked on them. Unless a proper pressure is applied to them, the tools may break and scatter in a dangerous manner.
  • Page 77 With the bar pedal fully pressed, slowly turn the multiple opening limit setting handwheel clockwise. The ram slowly closes. (Its multiple closing limit rises.) When the clearance between the punches and punch holders is about to disappear, turn the PRESSURE multiple closing limit setting GAUGE handwheel further clockwise,...

  • Page 78: Rg50, Rg80, And Rg100

    8-2. RG50, RG80, and RG100 When you are aligning the tools with the CAUTION bar pedal locked, do not stop the hydraulic pump motor by pressing the HYD. OFF button or turning the POWER ON/OFF keyswitch to OFF. Doing so will open the ram.
  • Page 79 With the bar pedal fully pressed, slowly turn the multiple closing limit setting handwheel clockwise. The ram slowly closes. (Its multiple closing limit rises.) When the clearance between the punches and punch holders is about to disappear, turn the PRESSURE multiple closing limit setting GAUGE handwheel further clockwise,...
  • Page 80 Clear the pedal stopper, fully press the bar pedal, and push PUSH BACK back the bar pedal lock lever. The bar pedal is unlocked. BAR PEDAL LOCK LEVER Release the bar pedal to complete the tool aligning procedure. The ram opens to the multiple opening limit and stops. V-36...

  • Page 81: Setting Tool Origin

    9. SETTING TOOL ORIGIN Never put your hand or hands between the WARNING punches and dies. Apply to the installed tools a pressure that is not higher than the allowable tonnage marked on them. Unless a proper pressure is applied to them, the tools may break and scatter in a dangerous manner.

  • Page 82: Bending Operation

    Tool selection is very important in bending. Select your tools by referring to the AMADA tool catalog. Usually, the allowable tonnage is marked on the tools. If the tools do not have the allowable tonnage marked on them, contact AMADA.

  • Page 83: Setting Multiple Opening Limit

    Clear the pedal stopper, and fully press the bar pedal. The ram closes to the multiple closing limit and stops. With the bar pedal fully pressed, turn the multiple closing limit setting handwheel clockwise to close the ram to such a position that the clearance between the punch nose and die top...

  • Page 84: Bending Worksheet

    10-3. Bending worksheet Bend the worksheet as described below. 10-3-1. TEMPORARILY SETTING MULTIPLE CLOSING LIMIT Loosen the handwheel lock knob to unlock the multiple closing limit setting handwheel. Clear the pedal stopper, and fully press the bar pedal. The ram closes to the multiple closing limit and stops. With the bar pedal fully pressed, turn the multiple closing limit...

  • Page 85: Setting Worksheet

    10-3-2. SETTING WORKSHEET Do not adjust the stoppers by reaching WARNING from the front of the machine. Adjust the stoppers from the rear of the machine. NOTE For the operation of the optional backgauge, refer to its operator’s manual. Release the bar pedal. The ram opens to the multiple opening limit and stops.

  • Page 86: Setting Bend Angle

    10-3-3. SETTING BEND ANGLE NOTE For the pressure required for a normal bending operation, refer to the bending pressure chart affixed to the machine. While holding the set worksheet with both hands, clear the pedal stopper, and fully press the bar pedal to close the ram to the temporarily set multiple closing limit.
  • Page 87 Remove the worksheet from the machine, and check the bend angle as shown right. When the worksheet is bent to the desired angle, the bending procedure is completed. When the worksheet is not bent to the desired angle, do as described below.

  • Page 88: Turning Off Power

    11. TURNING OFF POWER Whenever the machine is not in use, CAUTION remove the key from the POWER ON/OFF keyswitch, and hand it to the chief operator for custody. When the ram is positioned above the maximum opening limit, stopping the hydraulic pump motor opens the ram even if the bar pedal is locked.
  • Page 89 Turn the machine circuit breaker to OFF. The POWER lamp extinguishes. Turn off the shop circuit breaker. V-45...

  • Page 90: Troubleshooting

    Press its reset button. Release it. (Unlock it or remove Bar pedal is pressed and held. obstacle.) Excessive uneven load was applied Contact AMADA. during bending operation. Shop circuit breaker is turned off. Turn it on. Pressure adjusting knob is not Turn it fully clockwise (+).
  • Page 91 Oil level in hydraulic oil tank is low. Maintaining hydraulic system” in Part pressure is not delivered. Hydraulic pump is faulty. Contact AMADA. Clean or change them as described Filters in hydraulic oil tank are in “2. Maintaining hydraulic system” clogged.

  • Page 92: Clearing Emergency Stop Condition

    13. CLEARING EMERGENCY STOP CONDITION When one of the EMERGENCY STOP buttons is pressed, the ram and the hydraulic pump motor immediately stop, and the EMERGENCY lamp comes on. Clear the emergency stop condition as described below. Pull the pressed EMERGENCY STOP button. If the multiple opening limit of the ram is set, turn up the multiple opening limit setting lever to clear the multiple opening limit.

  • Page 93: Part Vi Maintenance

    Part Maintenance 1. Inspection before start of day’s work ......... VI-2 2. Maintaining hydraulic system............. VI-4 2-1. Checking hydraulic oil level..........VI-4 2-2. Changing hydraulic oil............VI-5 2-3. Maintaining tools ..............VI-6 3. Lubrication ................. VI-7 4. Hydraulic circuit diagrams............VI-8 4-1.

  • Page 94: Inspection Before Start Of Day'swork

    AMADA. There are no hydraulic oil Visually check. If there is hydraulic oil leak, leaks. contact AMADA for repairing Ram normally operates. Refer to “Checking ram for If ram does not normally operation” on next page. operate, contact AMADA.
  • Page 95 Checking ram for operation Check the ram for proper operation as described below. Remove the tools from the machine. Fully press the bar pedal. The ram closes to the multiple opening limit and stops. NOTICE To close the ram with the punches and dies installed, turn the multiple opening limit setting handwheel fully counterclockwise, and fully press the bar pedal.

  • Page 96: Maintaining Hydraulic System

    2. MAINTAINING HYDRAULIC SYSTEM If the hydraulic oil is badly contaminated, change it. NOTICE When dirt, dust, and other foreign matter are deposited in large amounts in the hydraulic circuit, the hydraulic pump may produce abnormal noise and decrease in discharge capacity, and the ram may decrease in bending speed and vibrate.

  • Page 97: Changing Hydraulic Oil

    RG35S 26 L {6.9 US gal} RG50, RG80 51 L {13.5 US gal} RG100 65 L {17.2 US gal} Recommended hydraulic oil: Amada Oil A-110 Esso Nuto H46 Mobil DTE 25 Shell Tellus Oil 46 (ISO VG46 equivalent) NOTICE When the hydraulic oil is changed, also clean the filters in the hydraulic oil tank.

  • Page 98: Maintaining Tools

    Periodically change the arrangement of the tools on the upper beam and ram. • To maintain bending accuracy, regrind the tools as soon as they are worn. NOTE For regrinding the tools, contact AMADA. VI-6...

  • Page 99: Lubrication

    3. LUBRICATION Before maintaining or cleaning the WARNING machine, turn off the shop circuit breaker, and relieve the residual hydraulic pressure in the machine. Post a sign to inform other workers that the machine is under maintenance. Lubrication is very important to maintain bending accuracy and avoid machine troubles.

  • Page 100: Hydraulic Circuit Diagrams

    4. HYDRAULIC CIRCUIT DIAGRAMS 4-1. RG35S VI-8...
  • Page 101 Hydraulic parts list Name RG35S AC motor Hydraulic pump Hydraulic filter Main cylinder Distributor Sequence valve Multiple closing limit valve Check valve Check valve Check valve Cut-off valve Pressure gauge Solenoid valve Hydraulic filter VI-9...

  • Page 102: Rg50, Rg80, And Rg100

    4-2. RG50, RG80, and RG100 VI-10...
  • Page 103 Hydraulic parts list Name RG50 RG80 RG100 AC motor Hydraulic pump Hydraulic filter Main cylinder Auxiliary cylinder Distributor Solenoid valve Multiple closing limit valve Check valve (1) Check valve (2) Check valve (3) Cut-off valve Pressure gauge Solenoid valve VI-11...
  • Page 104 VI-12...

  • Page 105: Electric Circuit Diagrams

    5. ELECTRIC CIRCUIT DIAGRAM Ram up/down Maximum opening limit Ram maximum opening limit Ram maximum opening limit Multiple closing limit VI-13...
  • Page 106 VI-14...
  • Page 107 Electric parts list Symbol Name Motor (three-phase) Magnetic switch Circuit breaker (main) Circuit breaker (motor) Circuit protector Fuse Fuse (option) Transformer Transformer (option) Transformer Key selector switch Pushbutton switch Pushbutton switch (with lamp) SB3, 4, 5 Pushbutton switch (push-pull type) SQ1, 2 Limit switch Limit switch...
  • Page 108 Symbol Name Panblock terminal Panblock terminal Panblock terminal Panblock terminal VI-16...
  • Page 110 AMADA COMPANY, LTD. 200, Ishida, Isehara, Kanagawa, JAPAN Printed on recycled paper.

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