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Pedestal Belt Sander Model 248-3 USER MANUAL - DeBurr-It!

1. DeBurr It Abrasive Tool Manufacturing Pedestal Belt Sander Model 248 3 USER MANUAL Revised 07 01 14 Copyright 2014 DeBurr It Abrasive Tool Division of PCE Midwest LLC 812 Warehouse Rd Toledo OH 43615 Belt sander is protected by multiple applied for patents Table of Contents Section 1 Installation and Setup Uncrating 3 Installation 4 Installing and adjusting abrasive belts 6 Changing sander frame angle 8 Changing sander direction if 9 applicable Section 2 Use Use with tool rest 10 Use without tool rest 11 Variable speed if applicable 12 Cleaning 13 Section 3 Troubleshooting Vibration issues 14 Belt slippage and belt wobbling 15 Variable Speed Drive 16 Customer service contact info 17 Section 1 Uncrating Thank you for your purchase of our 3 wheel 2x48 pedestal belt sander Using our customer feedback and expert engineering we are able to provide affordable abrasive solutions in robust designs If you purchased your unit via the internet or mail order your new unit will arrive expertly packed and ready to install Remove all bracing from the crate and remove unit by lifting straight up from the motor side IMPORTANT NEVER LIFT FROM THE SIDE COVER This is only a protective cover and not made to lift the weight of the sander Contents of the crate of the crate will be 1x Complete Sander unit
2. can overheat if it is placed in a position of extreme heat or lack of sufficient air circulation Make sure to keep the unit in an ambient temperature between 15F 9C to 105F 40C If the VFD overheats stop the sander and let the VFD cool Provide a cooler ambient running conditions or stop using the sander Unit will not respond to speed changes Check the connections on the back of the potentiometer and on the input connections on the drive Potentiometer is 10k ohm max of resistance Refer to VFD manufacturer user manual and check parameters to view minimum and maximum set frequencies Minimum frequency should be 30 and maximum should be 100 Unit will not start with foot pedal Refer to diagram and check connections inside foot pedal and on input connections of the drive VFD tripping breaker Replace VFD 16 Customer Serivce Contacts Office Phone 419 913 1966 Email support deburrit com Please include the model number serial number and a short summary of the problem you are having We will contact you as soon as possible Our website is always being updated with technical documents and video procedure Please visit it often for updates www deburrit com 17
3. ND If no FORWARD REVERSE control operator is supplied jump the terminals COM to the desired direction IIIMPORTANT NEVER OVERRIDE DEFAULT DEBURR IT PARAMETER SETTINGS WITHOUT CONSULTING DEBURR IT TECHNICAL DEPARTMENT All parameters have been throroughly tested and changing any parameters will void any safety or warranty conditons 12 Cleaning Abrasive dust can be hazardous to your health as well as other people and animals Always wear a breathing dust mask when sweeping up debris as well as cleaning the unit Avoid using high pressure compressed air as it will make this abrasive dust airborne Wipe down the unit will a clean soft dry cloth such as a tshirt rag Using low pressure compressed air lt 15 psi blow off bearings and around the drive pulley Too much pressure could pop the dust seals off of the bearings Wipe down the unit completely again with a clean rag and a mild cleaner such as Simple Green IMPORTANT DO NOT WASH DOWN THE SANDER WILL RUNNING WATER After giving the unit a good cleaning check all mounting bolts for tightness as well as spindles and mounting hardware Tighten if necessary 13 Section 3 Vibration Issues Due to the high speed nature of the machine vibration issues can arise if there are componets that have come loose or have worn beyond their acceptable service levels Vibration of Drive Pulley The drive pulley will vibrate if the set screws have become loose The dr
4. age your workpiece 10 Using the Sander Without Tool Rest There are plenty of applications where you would need to remove the tool rest Always use extreme caution when operating without a tool rest as its possible your work piece could get away from you and cause damage to the user to something else or someone else Removing the tool rest Turn the machine off and remove the belt Remove the lower spindle knob completely Remove the tool rest and put in place the supplied precision washer Reinstall the lower spindle knob and tighten as you would if the tool rest was there Reinstall the belt and perform the retensioning procedure Precision Washer Standard Washer Lower Spindle Knob Exploded and Assembled Views To operate turn on the unit Only use enough pressure against the abrasive belt so you do not loose control of the part you are working Easier access to the lower idler wheel is now available You can use this wheel just as any grinding wheel 11 Variable Speed Drive A variable speed drive option will let you increase or decrease the speed of the motor We always recommend using our supplied VFD with the correct parameters already setup for safe operation of the sander NEVER use a rheostat to control the speed of any single or polyphase AC induction motor Please consult DeBurr It technical department if you are using a non supplied VFD FOOTSWTCH ON OFF FWD REY L1 Ti L1 T2 L3 T3 SROUND GROU
5. another in house innovative design to quickly line belts back up No tools required and takes just seconds Below is a diagram of the adjustments you will need to use Lockscrews should always be finger tight If they aren t slightly wiggle the Belt Runout Adjustment back and forth until you take the tension of the thread of the lockscrews Once the adjustment has been made your belt will track true until it stretches out too much from wear or until you change the belt IMPORTANT ALWAYS ADJUST RUNOUT WITH THE SPRINDLE HANDLE TIGHT AND ALWAYS PERFORM RETENSIONING BEFORE ADJUSTING RUNOUT Retensioning Loosen spindle handle slightly Retighten spindle handle Runout adjustment hardware To adjust run out loosen all three lockscrews a few turns All new belts and re tensioned belts will always slightly run off the idler wheel After changing or retensioning turn the Belt Runout Adjustment slightly clockwise Turn on the sander Adjust the Belt Runout Adjustment until the belt is centered on the top crowned idler IMPORTANT DO NOT RUN THE BELT FOR AN EXCESSIVELY LONG TIME WITH IT BIASED EXTREMELY TO ONE SIDE OR THE OTHER OF ANY OF THE PULLEYS DAMAGE TO RUNNING COMPONENTS AND OR FRAME WILL OCCUR While the machine is still on retighten the lockscrews finger tight The belt is adjusted Changing Sander Frame Angle Among the other innovative features of our unit is the ability to change positions of the frame This mea
6. ive pulley is supplied with two set screws locked in place with a thread locking agent If the set screws have loosened completely remove each screw and apply Loctite 249 and reinstall tightly Let the Loctite cure for 24 hours If vibration continues remove wheel and inspect the bore Using a precision measuring instrument measure the bore of the drive wheel Check the bore diameter at serveral points around the bore circumference The maximum allowed diameter is 0 628 15 95mm If the bore has enlargened beyond this replace drive wheel Vibration of Lower or Upper Idler Wheels First make sure upper and lower spindle handles knobs are tight Inspect the tightness of each spindle screw If any spindle screw is loose carefully remove spindle and apply Loctite 249 and reinstall Torque to 21 ft Ibs 30 Nm Remove belt and check each idler by hand for any rough or broken bearings If any bearing is broken DeBurr It will reload the bearings for free under warranty Vibration of Upper Frame Check the tightness of the two 20 bolts holding the tensioner assembly to the frame Check the tightness of the shoulder screw holding the main handle to the frame Check the integrity of the two urethane washers in between the lower and upper frame Reinstall the mounting bolts to so the nylon nut is flush with the end of mounting screw Vibration of the Lower Frame Check the four mounting bolts for tightness High Frequency Vibration on Work Re
7. ns you can have the most flexibility to comfortably perform the task at hand DISCONNECT POWER BEFORE ATTEMPTING TO CHANGE THE ANGLE OF THE FRAME Remove the abrasive belt Remove the 3 of the 4 mounting bolts Securely grasp the frame and remove the last bolt Using the babbit as a guide rotate the frame in 45 degree increments to the closest indexed position of the desired angle Lower Mounting Bolts Reattach the mounting hardware securely The frame must be sitting flat against the C face of the motor or belt tracking will be severely running o Changing Belt Direction ALL WIRING CHANGES SHOULD BE PERFORMED BY A LICENSED PROFESSIONAL DEBURR IT IS NOT RESPONSIBLE FOR ANY PROPERTY OR HUMAN BODY DAMAGES IMPORTANT NEVER OPERATE THE UNIT IN WHICH THE PART COULD BE PROJECTED INTO YOUR FACE OR ANYONE OTHER PERSON Wait until the unit has been turned off and has come to a complete stop Reverse unit as appropiate for the style of control Restart until and pay attention to any belt adjustments that need to be made Single Phase Follow directions on motor nameplate for which wires to change Three Phase DOL only Swap any two phases Three Phase reversing control Select the opposite direction of current rotation VFD Selector switch operator should be installed to reverse direction on the VFD direction input If equipped with foot switch control no wiring changes will be needed at the foot switch Note If y
8. or 15A minimum Three Phase Connect the three power conductors of the whip to DOL magnetic starter with overloads sized accordingly Connect the ground to the ground lug VFD All VFD units have three phase motors Connect the three power conductors to the T1 T2 T3 terminals on the drive Connect incoming power to L1 L2 L3 A ground conductor MUST be ran from the motor to the drive and from the drive to the building ground to reduce electrical noise Refer to our VFD setup manual for settings and control wiring Installing and Adjusting Abrasive Belts Our unique belt tensioning system allows you to quickly change out belts in under a minute Remove the side knob of the safety cover to expose the belt track Loosen the upper spindle handle slightly to allow the spring to put tension on the belt Pull main handle towards you While manually compressing the tension spring slip the belt off the drive wheel first then off the bottom wheel then off the top crowned wheel Install new belt by first pulling the main handle Start by putting the new belt over the lower wheel and upper crown wheel then slip onto the drive wheel Release the main handle Snug up the upper spindle handle DO NOT OVER TIGHTEN OR YOU WILL DAMAGE THE UNIT Adjusting Runout of New or Used Belts All belts will have to be adjusted at one point or another due to wear or due to their manufacturing process DISCONNECT POWER BEFORE CHANGING BELTS DeBurr It uses
9. our abrasive belts have a directional arrow you may need to remove the belt and reinstall so the direction indicated matches the direction traveled Section 2 Using with and adjusting Tool Rest Using the sander with the tool rest makes for repeatable angles as well as a safer way to grind against an object The standard tool rest adjust from 0 degrees 90 degrees perpendicular to the belt down to 22 degrees 112 degrees relative to the belt To adjust the tool rest turn off the sander Slightly loosen the lower spindle knob Adjust tool rest to desired angle Re tighten knob firmly before restarting the sander From the factory there is a 0 04 to 0 063 1 1 5mm gap between the belt and tool rest This is too discourage parts from being lodged between the tool rest and the belt If the gap becomes too small grinding sparks may deflect against the tool rest The the gap because too large it becomes easier to get small parts stuck between the tool rest and the belt DeBurr It recommends replacing the tool rest of the gap increases beyond 0 20 Smm ALWAYS WEAR EYE AND BREATHING PROTECTION WHEN USING ANY ABRASIVE TOOLS ABRASIVE DUST IS TOXIC TO YOUR HEALTH To operate sander turn on unit Using moderate pressure push the work piece against the abrasive belt Let the piece rest on the tool rest using your hands to guide the piece into and along the abrasive surface Applying too much pressure will overheat and possibly dam
10. st or Belt Rest Check all mounting hardware for tightness Check gusset welds for cracks on belt rest 14 Belt Slippage and Wobbling Belt slippage occurs when the tension is too loose or if there is some type of lubricant that has contaminated the back of the abrasive belt Make sure oil or grease hasn t contaminated the back of the belt If so replace belt Follow the retensioning proceedure If this fails to retension the belt follow the steps below to reset the preload on the main spring Completely remove the belt Remove bolt nuts from the tensioner assembly Reinstall the first standard nut until it starts to compress the tension spring continue a half turn Reinstall the nylon lock nut against the first nut BON oe While holding the nylon nut in place with one wrench turn the first nut in the loosen direction to tighten against the nylon nut If procedure fails to tension belt replace tension spring Belt wobbling can occur if the upper or lower frame are not secured tightly or if the upper frame lock screws are too loose Belt wobbling can also occur if idler pulleys bearings are worn Check lock screws to make sure they are firmly tightened by hand Inspect bearings for worn or broken bearings 15 Variable Speed Drive This covers only operational isses with the VFD For technical issues with the unit please refer to the factory user manual provided to you by the VFD manufacturers Overheating The VFD
11. with a prewired for 115v power cable and switch if single phase unit or direct wired for three phase control 1x Precision washer 1x Warranty slip Thoroughly check the unit for any damage and notify DeBurr It right away if any is found It is important to us our parcel service delivers your unit undamaged If you purchased a VFD or any control accessories these will be in a separate box Even if these components were not sold directly from DeBurr It please inspect all items for damage Installation ALL THREE PHASE AND VARIABLE SPEED DRIVE CONNECTIONS SHOULD BE PERFORMED BY A LICENSE PROFESSIONAL ALL ELECTRICAL REPAIRS SHOULD BE PERFORMED BY LICENSED PROFESSIONALS DEBURR IT ASSUMES NO RESPONSIBILITY TO ANY PROPERTY OR HUMAN BODY DAMAGES IF ANY MODIFICATIONS ARE DONE TO THE ELECTRICAL SUPPLY BY PURCHASING THIS UNIT AND ATTEMPTING TO INSTALL BUYER AGREES TO THESE TERMS Choose a stable stand or table to run your belt sander on Universal pedestal stands offer the most flexibility and allows the sander to be used to its maximum potential If you do not have a stand picked out yet DeBurr It manufactures stands for specifically for its sander Lag the stand firmly to the ground or attach the base of the motor securely to a heavy duty table using 5 16 18 bolts washers and lock nuts of a minimum of grade 5 hardware Single Phase Plug the unit into a grounded 115v outlet The receptacle and circuit current rating should be rated f

Pedestal Belt Sander Model 248-3 USER MANUAL - DeBurr-It!

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