ACCU-Pro MODEL 670 SEMI-AUTOMATIC
Contents
1. Controls electrical power to the motor which turns the drive shaft to traverse the carriage Ar FOR SAFETY WHENEVER OR STOP IS PRESSED TO SHUT GRINDING WHEEL Switch ON OFF DOWN THE MACHINE SHUT Controls electrical power to the grinding head motor This OFF ALL SWITCHES EXCEPT switch is tied into the door interlock This switch will FOR THE ELECTROMAGNET function only when the door is closed SWITCH YOU CAN THEN 2 PRESS START TO START THE COOLANT PUMP Switch ON OFF a GRINDER Controls electrical power to the flood coolant system ELECTROMAGNET SWITCH and LIGHT ON OFF 3 Controls electrical power to the electromagnets for holding the bedknife and bedbar iD This switch is independent from the start and stop lt 7 switches and is powered through the standby power A supply Green light indicates power to magnets is on TOOLING POSITION SWITCH MOMENTARY ENN Controls DC electrical power to the tooling rotation X V actuator Pushing up causes the tooling to rotate up tothe Bi preset top face stop Pushing down causes the tooling to rotate to the preset front face stop ALWAYS TURN THE GRINDING i WHEEL ON FIRST TO AVOID A The START and STOP buttons control the main power to VOLTAGE DROP TO THE the Grinder except the electromagnets which are REVERSING CIRCUIT OF THE independently powered Use the other switches to CARRIAGE TRAVERSE control the separate operating functions To start the grinding operation With2. UNITED Setting the Standard With the World s Most Valued Grinders ACCU Pro MODEL 670 SEMI AUTOMATIC BEDKNIFE GRINDER This book consists of two manuals The OPERATORS MANUAL which contains all the information on operating and doing routine daily maintenance on this equipment The ASSEMBLY and SERVICE MANUAL which is used by the maintainence department to install the equipment and to do all maintenance except routine daily maintenance ACCU Pro MODEL 670 SEMI AUTOMATIC BEDKNIFE GRINDER OPERATORS MANUAL SAFETY INSTRUCTIONS manual to alert you to possible Safety Hazards Safety Awareness Symbols are inserted into this i Whenever you see these symbols follow their instructions The Warning Symbol identifies special instructions or procedures which if not correctly followed could result in personal injury KEEP GUARDS IN PLACE and in working order REMOVE WRENCHES AND OTHER TOOLS KEEP WORK AREA CLEAN DON T USE IN DANGEROUS ENVIRONMENT Don t use Grinder in damp or wet locations or expose it to rain Keep work area well lighted KEEP ALL VISITORS AWAY All visitors should be kept a safe distance from work area MAKE WORK AREA CHILD PROOF with padlocks or master switches DON T FORCE THE GRINDER It will do the job better and safer if used as specified in this manual USE THE RIGHT TOOL Don t force the Grinder or an attachment to do a job for which it was not designed WEAR PROP
3. Continued USING A FLARE CUP WHEEL FOR ADDED CLEARANCE The shape of some bed bars requires using an optional flare cup grinding wheel to clear the end supports See FIG 19 Flare cup wheels can be ordered in several 6 150 mm diameter versions For most applications the 6 vitrified wheel is used However ifthe end mounting flanges of the bedknife are more than 2 50 mm high or near the front face of the knife you may need the optional 6 flared cup wheel For Part Numbers and descriptions of all available grind FLARED CUP WHEEL ing wheels refer to the Grinding Wheels list on Page 12 FIG 19 OPERATING INSTRUCTIONS Continued MOUNTING A BEDKNIFE FOR GRINDING Inspect and Clean the Bedknife EHRE Inspect the bedknife for damage cracks warping 5 bushing wear excessive bedknife wear Replace or repair if necessary see the mowing unit manufacturer s manual Thoroughly clean the bed knife especially on the bottom where the electromag nets will attach It is recommended to thoroughly wire brush these areas FRONT FACE STOP PIN Set the Bedknife Angles 1 From the Mowing Unit manual or from the Mowing Unit manufacturer determine what the correct top face angle and front face angle is for your bed knife See Page 10 Move the tooling Rotation Actuator so the tooling bar stop is at midpoint between the front face stop and the top face stop See Fig 20 Move the Tooling Rotation stop pin for the fron
4. The red light will come on on the control panel Turn and park both alignment gage tips BEDKNIVES WITH DUAL CUTTING EDGES Some mowing unit manufacturers and some after market bedknife manufacturers make a bedknife with Dual Cutting Edges as shown in FIG 24 A ee FIG 24 A Because of the two radiused surfaces that these bedknives present to the Electromagnets there is minimal holding force Therefore to achieve a solid hold with the Electromagnets you must file the bottom side of the bedknife with a flat bastard file as shown in Fig 24 B You must file with a uniform stroke across both radius File until you have developed flats on the radius that are a minimum of 3 32 09 2 3mm wide and uniform in width for the length of the magnet on each end of the bedknife FIG 24 B OPERATING INSTRUCTIONS Continued ALIGNING TO A WORN BEDKNIFE This alignment method is different than the alignment GRINDING WHEEL AT LEFT END OF BEDKNIFE detailed on page 17 in that in this alignment you are aligning the worn bedknife faces to the grinding head traverse The reason for using this method is that some bedknives are worn unevenly primarily due to the reel adjustments To get the maximum life from these bed knives and remove the least stock you may want to grind them using the established surfaces as the alignment Ll PLU
5. HOLD THE BEDKNIFE FOR APPROXIMATELY 10 MINUTES THEN THE BEDKNIFE WILL FALL Check Clearances and Set Traverse Limits Position the grinding head so that the grinding wheel just touches the top face of the bedknife Check to see if the rim of the grinding wheel is extended 1 2 50mm above the top face of the grinding wheel If you have previously ground the front face it most often will be correct If not with the vertical cam and lock lever adjust the grinding head See Fig 32 If the shape of the bedbar interferes with the wheel guard or 1 2 12 7 NM grinding wheel you will need to make adjustments per page 15 COC Lf a ANA 2 N i IF THE GRINDING WHEEL RIM DOES NOT EXTEND OVER THE BEDKNIFE FACE IT WILL WEAR UNEVENLY AND CAUSE GROOVES ACROSS THE SURFACE OF THE BEDKNIFE Check for interference 1 Back out the grinding head so the wheel no longer touches the top face of the bedknife 2 If you have just ground the front face the travel limit should still be correct but you should still verify no inter ferences as described below If you did not grind the front face follow the full procedure listed below Slide the left and right proximity switches to the far ends of the rail Leave their knobs loose Set the TRAVERSE knob at 4 5 FT MIN Set the CARRIAGE TRAVERSE switch ON Traverse the carriage to the left until the contact area of the grinding wheel is about 1 beyond the area to be ground on the bedknife
6. OR ALTER the size of the mounting hole If wee won t fit the machine get one that will DON T ever EXCEED MAXIMUM and SPEED established for the wheel DON T use mounting flanges on which the bearing surfaces ARE NOT CLEAN FLAT AND FREE OF BURNS DON T TIGHTEN the mounting nut EXCESSIVELY DON T grind on the SIDE OF THE WHEEL see Safety Code B7 2 for exception DON T start the machine until the WHEEL GUARD IS IN PLACE DON T JAM work into the wheel DON T STAND DIRECTLY IN FRONT of a grinding wheel whenever a grinder is started 10 DON T FORCE GRINDING so that motor slows noticeably or work gets hot AVOID INHALATION OF DUST generated by grinding and cutting operations Exposure to dust may cause respiratory ailments Use approved NIOSH or MSHA respirators safety glasses or face shields and protective clothing Provide adequate ventilation to eliminate dust or to maintain dust level below the Threshold Limit Value for nuisance dust as classified by OSHA Setting the Standard With the World s Most Valued Grinders We are committed to Providing superior customer support training and service Manufacturing the highest quality products at an unequaled value Setting the industry standard by investing in technological product innovation Manufacturing products specifically designed to maintain original equipment manufacturers specifications Interacting with and supporting all orig
7. SOME REEL ASSEMBLIES ESPECIALLY ON GREENS MOWERS HAVE A MINIMAL ADJUSTMENT RANGE BE SURE THE MISALIGNMENT YOU USE IS WITHIN THE RANGE OF THE REEL ASSEMBLY SO YOU CAN ACHIEVE PROPER REEL TO BEDKNIFE ADJUSTMENT GRINDING WHEEL AT RIGHT END OF BEDKNIFE This is accomplished by touching the grinding wheel to the worn bedknife ELECTROMAGNETS IF YOU INFEED THE GRINDING WHEEL EXCESSIVELY THE BEDKNIFE MAY SLIDE ON THE With the bedknife bedbar mounted per procedure on page 17 and in the front face grinding position Move the grinding head to the left end of the bedknife Now adjust the carriage infeed handwheel until the wheel just touches the bedknife inside the unworn end nib See FIG 25 Next move the grinding head to the right end of the bedknife Now without moving the grinding head infeed loosen the lock tee knob and adjust the tooling bar right side adjuster until the grinding wheel just touches the bedknife inside the unworn end nib See FIG 26 Because when you adjust the right side the left side also moves a small amount you should go to the left and right sides several times to verify that you just contact the knife at both ends Now lock the lock tee knob on the right side adjuster and check the dial indicator The dial indicator reading difference from 500 is the amount you have adjusted the grind out of correct alignment Make ce
8. all switches OFF and the guard door closed press the START button Turn the GRINDING WHEEL switch ON Turn the COOLANT PUMP and CARRIAGE TRAVERSE switches ON GETTING TO KNOW YOUR GRINDER Continued DRIVE CARRIAGE FIG 3 Vertical Eccentric Adjustment and Lock Moves the grinding head up and down Horizontal Handwheel Moves the grinding head infeed in and out Horizontal Adjustment Scale Calibrated in 002 in 05mm increments so you can accurately move the grinding wheel in for each pass across the face of the bedknife GRINDING HEAD FIG 3 Wheel Guard Lock Screws A T knob holds the guard in position Loosen it to pivot the guard when the guard interferes with the bedbar Diamond Wheel Dresser Allows you to dress the grinding wheel Cleaning and dressing the grinding wheel improves the quality of the grind See Page 13 for more information COOLANT SYSTEM FIG 3 See Page 14 for more information about the system Coolant Nozzle Directs a stream of coolant onto the bedknife and grinding wheel if the coolant system is turned on For precise aiming the nozzle and connecting tubing are completely flexible Coolant Flow Valve Controls the volume of coolant flowing to the nozzle Use only enough flow to cool the bedknife Excess flow will cause excess splashing and won t improve performance SEEN oy Gy AR amp GETTING TO KNOW YOUR GRINDER Continued FIXED ELECTROMA
9. then turn the traverse potentiometer to zero Be prepared to STOP the traverse earlier if there is any interference between the grinding wheel and the bedbar With the carriage still in the position determined in Step 3 above slide the left proximity switch in until its LED lights then tighten the proximity bracket OPERATING INSTRUCTIONS Continued GRINDING THE TOP FACE Continued Traverse back to the right until the grinding wheel reaches the point where it covers the entire area to be ground and goes past that point by 1 25 mm or more if possible Then set the right proximity switch in the same manner NOTE The area of the grinding wheel which contacts the bedknife is on the left side of the wheel When grinding the left end of the bedknife the area of the wheel which doesn t contact the bedknife will still be over the bedknife See FIG 33 When you go to the right end of the Grinder the wheel traverses completely off the bedknife Infeed the grinding wheel until it very lightly touches the bedknife on the left side Now traverse to the right end of the bedknife to assure that the right side is not closer to the grinding wheel Back the wheel out if necessary until you can traverse full length with a very light touch at the closest point Grind the Bedknife When you are satisfied with the grinding head travel begin grinding REFER ALSO TO THE SAFETY RULES WHEN GRINDING ON PAGE 3 NOTE At this point you
10. won t know the condition of the grinding wheel after the previous job Always dress the wheel before grinding See Page 12 With the guard door closed set the GRINDING WHEEL switch at ON Set the COOLANT PUMP switch at ON and check that the nozzle is directing coolant onto the bedknife See FIG 18 Set the TRAVERSE knob at about 12 FT MIN NOTE If an excessive amount of metal stock will have to be removed on one end recheck your setup first and then check the straightness of the bedknife a BS ies ar If it is bowed or twisted replace it Continue grinding the bedknife in this manner until you are satisfied with the top face grind 4 Set the carriage traverse switch at on With the Dress the wheel when necessary See horizontal infeed handwheel crank the head in Dressing the Grinding Wheel on page 13 clockwise until the grinding wheel is removing metal lightly from the bedknife It is recommended During the grinding process watch the spark to take off about 002 to 003 05 to 075 mm per pattern for the full length of grind the sparks pass during the rough grind should look equal for the full length of grind NOTE The horizontal adjustment dial is calibrated in Dress the wheel before making the final spark 002 05 mm increments out grind OPERATING INSTRUCTIONS Continued GRINDING THE TOP FACE Continued On the spark out passes crank the grinding head in clock wise only about 001 025
11. ER APPAREL Wear no loose clothing gloves neckties or jewelry which may get caught in moving parts Nonslip footwear is recommended Wear protective hair covering to contain long hair ALWAYS USE SAFETY GLASSES SECURE YOUR WORK Make certain that the bedbar and bedknife is securely fastened with the electromagnets provided before operating The Caution Symbol identifies special instructions or procedures which if not strictly observed could result in damage to or destruction of equipment DON T OVERREACH Keep proper footing and balance at all times MAINTAIN GRINDER WITH CARE Follow instructions in the Assembly and Service Manual for lubrication and preventive maintenance DISCONNECT POWER BEFORE SERVICING REDUCE THE RISK OF UNINTENTIONAL STARTING Make sure all switches are OFF before plugging in the Grinder USE RECOMMENDED ACCESSORIES Consult the manual for recommended accessories Using improper accessories may cause risk of personal injury CHECK DAMAGED PARTS A guard or other part that is damaged or will not perform its intended function should be properly repaired or replaced KNOW YOUR EQUIPMENT Read this manual carefully Learn its application and limitations as well as specific potential hazards KEEP ALL SAFETY DECALS CLEAN AND LEGIBLE If safety decals become damaged or illegible for any reason replace immediately Refer to replacement parts illustrations in Service Manual fo
12. GNET SUPPORT FIG 4 Ip a o The bedknife and bedbar is held in position by two L ADJUSTABLE ELECTROMAGNET electromagnets The left side electromagnet position is Me fixed SZ gt LOCK KNOB N A ADJUSTABLE ELECTROMAGNET SUPPORT FIG 4 The right side electromagnet is adjustable to match bedknife width Electromagnet Lock Knob Locks the right electromagnet assembly in position on the tooling bar slide ZEROING DIAL R H TOOLING ALIGNMENT ADJUSTER A A Lo er FIG 5 S Adjustment Handwheel euere Adjusts the right side of the tooling assembly to allow HANDWHEEL the tooling assembly to be adjusted out of parallel position to get maximum life from used bedknives Zeroing Dial Indicator After the right side adjustment has been moved out of alignment to maximize bedknife life it can be returned to the factory set zero position by adjusting until the dial indicator reads 500 BEDKNIFE GAGE FIG 4 On the outside of each electromagnet is a retractable bedknife gage These gages are used to align the bedknife to the grinding wheel carriage travel See Page 17 for detailed explanation of use STANDBY POWER SUPPLY FIG 6 Electromagnetic energy holds the bedknife bedbar assembly in place during grinding If the power is interrupted at an outside source the bedknife would release To avoid this situation a Standby Power FIG 6 Supply is connected into the
13. They are adjustable by loosening the star knob and sliding the assembly along the rail and retightening STAR KNOB GENERAL OPERATING INFORMATION eu MOUNTING A GRINDING WHEEL To replace the grinding wheel See FIG 11 Turn the GRINDING WHEEL switch OFF Unscrew the mounting flange that holds the grinding wheel using a 3 4 open end wrench Remove the old wheel and install the new one Screw on the flange finger tight then tighten approximately 1 8 turn further with the wrench It will self tighten when the motor is turned on IF THE WHEEL FLANGE IS OVERTIGHTENED THE GRINDING WHEEL MAY CRACK AND FLY APART After you install a new or different wheel it is recommended that you dress it before grinding Dressing trues the grinding surface of the wheel and removes the hard glaze sometimes remaining from the manufacturing process This dressing properly prepares the wheel for grinding See Page 13 GRINDING WHEELS AVAILABLE FOR ACCU Pro BEDKNIFE GRINDER WHEEL PART NO COLOR DESCRIPTION SIZE GRIT 3700060 White red flare cup wheel 60 6 3 1 4 x 2 0 627 inch bore vitrified ruby 3700062 White flare cup wheel 46 6 3 1 4 x 2 0 627 inch bore vitrified 3700268 White red straight cup wheel 60 6 x 2 x 0 627 inch bore vitrified ruby 3700411 White straight cup wheel 46 6 x 2 x 1 25 inch bore vitrified 3700696 Borazon straight cup wheel 120 For normal or extra har
14. ULT PHYSICIAN AND DO NOT INDUCE VOMITING HAZARD POTENTIAL APPLIES TO CONCENTRATE AND IS LESS AT NORMAL USE DILUTION Mixing the Coolant Mix Part No 3708620 Coolant in the Coolant Tank at a ratio of 50 parts water to 1 part concentrate Refer also to the label on the Coolant container If the Tank is empty this will take about 6 gallons of water and 1 pint of concentrate 24 liters of water and 0 5 liter of concen trate THE COOLANT RATIO AS SPECIFIED MUST BE USED TO HIGH A CONCENTRATION OR LOW A CONCENTRATION WILL CAUSE CORROSION AND PERFORMANCE PROB LEMS NEN RUCKER Using the Coolant Direct the nozzle so the coolant sprays onto the bedknife face being ground See FIG 17 or 18 Some coolant will then also be deflected onto the grinding wheel Adjust the flow valve so there is a steady stream of coolant Avoid a stronger flow than needed excessive coolant doesn t cool more and increases splattering Fluid Level in Coolant Tank Check the fluid level in the Coolant Tank daily to avoid running out while grinding Keep the coolant level between 1 and 4 25 and 100 mm from the top of the tray The pump inlet must always be completely submerged in water Never add plain water to the coolant when the level is low Always add water and concentrate in the correct propor tions It is recommended to pre mix coolant and water in a separate container for this purpose GENERAL OPERATING INFORMATION
15. URFACE OF THE BEDKNIFE Check for interference Back out the grinding head so the wheel no longer touches the front face of the bedknife Slide the left and right proximity switches to the far ends of the rail Leave their knobs loose Set the TRAVERSE knob at 4 5 FT MIN Set the CARRIAGE TRAVERSE switch ON Traverse the carriage to the left until the contact area of the grinding wheel is about 1 beyond the area to be ground on the bedknife then turn the traverse potentiometer to zero Be prepared to STOP the traverse earlier if there is any interference NN between the grinding wheel and the bedbar a ee With the carriage still in the position determined in Step 3 above slide the left proximity switch in until its LED lights then tighten the proximity bracket knob Traverse back to the right until the grinding wheel reaches the point where it covers the entire area to be ground and goes past that point by 1 25 mm or more if possible Then set the right proximity switch in the same manner NOTE The area of the grinding wheel which contacts the bedknife is on the left side of the wheel When grinding the left end of the bedknife the area of the wheel which doesn t contact the bedknife will still be over the bedknife See FIG 29 When you go to the right end of the Grinder the wheel traverses completely off the bedknife Infeed the grinding wheel until it very lightly touches the bedknife on the left side Now traverse to
16. bs 354 kg Shipping Weight 920 Ibs 417 kg Maximum Grinding Length 34 in 863 mm Sound Level Less than 75 Dba DAILY MAINTENANCE On a daily basis clean the grinder by wiping all areas down On a daily basis check coolant tray fluid level and filter sock content Replace filter sock when full about 6 15 cm On a daily basis inspect the grinder for loose fasteners or components and tighten Contact your company s Maintenance Department if damaged or defective parts are found DO NOT USE COMPRESSED AIR TO CLEAN GRINDING DUST o FROM THE GRINDER OPERATING INSTRUCTIONS PLEASE TAKE SPECIAL NOTE OF THE FOLLOWING WARNING DECALS LOCATED ON THE ACCU PRO BEDKNIFE GRINDER Symbols to Read ER operators manual wear Symbol for hot surface safety glasses and which could cause disconnect power before burns servicing Symbol for keep visitors a safe distance away from grinder and the Symbol identifying a symbol for sharp object panel cover or area as which will cause serious having live electrical injury components within Symbol for caution relating to RPM of the motor and minimum safe rated RPM of the grinding wheel WARNING FOR YOUR OWN SAFETY READ ASSEMBLY AND OPERATING MANUAL BEFORE OPERATING Always use safety glasses and ear protection Do not wear gloves neckties loose clothing etc This machine operates with a large amount of hot sparks Do not operate near flammables Stay clear of g
17. d onto the bedknife during grinding to minimize heat buildup COOLANT TRAY A large tray along the back of the Grinder serves as a splash guard and collects the splashed liquid for return to the Coolant Tank BEDKNIFE SUPPORTS T CONTROL BOX DRIVE CARRIAGE TRAVERSE MOTOR PROXIMITY SWITCHES STANDBY POWER SUPPLY Er COOLANT TANK COOLANT TRAY GETTING TO KNOW YOUR GRINDER Continued CONTROL PANEL FIG 2 TRAVERSE FT MIN KNOB Sa Controls the travel speed ofthe carriage and grinding head from 0 35 feet 0 10 7 meters per minute TRAVERSE KNOB ELECTROMAGNET TOOLING POSION START Button Green Acts as a reset button after STOP has been pressed The grinding motor switch must be in the off position or the guard ACCU PRO door must be closed or the start button will not reset BEDEHIFE GPINDEP IF THE TRAVERSE SWITCH OR THE COOLANT PUMP SWITCH ARE IN THE ON POSITION THEIR FUNCTIONS WILL IMMEDIATELY START WHEN START IS PRESSED CARRIAGE TRAVERSE COOLANT PUMP GRINDING WHEEL FIG 2 STOP Button Red Shuts down power to the Grinder with the exception of the electromagnets CARRIAGE TRAVERSE Switch ON OFF gt
18. dened 6 x 1 1 2 x 0 625 inch bore bedknife For more information on flare cup wheels see Page 15 GENERAL OPERATING INFORMATION Continued DRESSING THE GRINDING WHEEL Dress the grinding wheel whenever there is any glazing glazing is the buildup of stone dust grinding grit and coolant on the face of the wheel For best results also dress the wheel before making the final grind REFER ALSO TO THE SAFETY RULES WHEN GRINDING ON PAGE 3 For dressing always move the grinding head to the right hand side of the machine as shown in FIG 12 so you are clear of the bedknife With the wheel turning lift the dresser movement arm off its holder push it forward and swing the dresser around to the grinding face of the wheel Turn the adjuster ring until the diamond point just touches the wheel See FIG 13 or 14 When completed rotate handle clockwise against the lock bracket before pulling back and replace the dresser movement arm in the holder DRESSER MOVEMENT ARM NOTE Excessive dressing will shorten the life of the wheel and may cause the diamond to be dislodged from the dresser tip To little dressing will inhibit proper grinding Replacing the Wheel A new vitrified grinding wheel is 2 51 mm deep When it wears down to a depth of 0 75 19 mm it should be re placed See FIG 15 t min 19mm FIG 15 ROTATING THE WHEEL GUARD Some bedk
19. electromagnet circuit If the power is interrupted it will power the magnets for THE NORMAL LIFE OF THE approximately 5 minutes BATTERY IS THREE YEARS THE BATTERY SHOULD BE FOR SAFETY IF THE POWER IS REPLACED AFTER THREE INTERRUPTED THE OPERATOR YEARS OF USE SHOULD REMOVE THE BED KNIFE WITHIN 3 5 MINUTES STANDBY POWER SUPPLY GENERAL OPERATING INFORMATION WHEN TO SHARPEN THE BEDKNIFE NOTE To fully sharpen a reel mower you need to grind the reel blades using a Reel Grinder and re shape the cutting edge of the bedknife using the ACCU Pro Bedknife Grinder NOTE New bedknives should be ground before being put into use New bedknives deform and move to match the shape of the bedbar at the time of installation and therefore must be ground to a straight surface after installation When the grass is not being cut cleanly or the cut ends of the grass appear torn or ragged the edges of the reel blade and bedknife have become rounded and need sharpening See FIG 7A The purpose of sharpening is to restore the sharp edges to the reel and bedknife as well as to return the mowing unit to the manufacturers recommended configuration See FIG 7B BEDKNIFE GRINDING ANGLES The bedknife has two faces that normally need to be ground the top face and the front face on some models the front face may be curved and not need grinding The proper grinding angles for the two faces will vary depending on the reel man
20. inal equipment manufacturers This machine is intended for grinding the bedknife from a reel type mowing unit ONLY Any use other than this may cause personal injury and void the warranty To assure the quality and safety of your machine and to maintain the warranty you MUST use original equipment manufactures replacement parts and have any repair work done by a qualified professional ALL operators of this equipment must be thoroughly trained BEFORE operating the equipment Do not use compressed air to clean grinding dust from the machine This dust can cause personal injury as well as damage to the grinder Machine is for indoor use only Do not powerwash machine Low Voltage Relay WARNING The grinder is equipped with a low voltage relay which is factory preset at 100 FACTORY VAC If the power supply line does not deliver 100 VAC power under load the PRESET relay will open and trip out the starter If this occurs your power supply line is ADJUSTMENT inadequate and must be correct before proceeding further with the grinder WILL VOID ADJUSTMENT OF THE LOW VOLTAGE RELAY MAY CAUSE WARRANTY ELECTRICAL COMPONENT FAILURE ADJUSTMENT OF THE LOW VOLTAGE RELAY WILL VOID ALL ELECTRICAL COMPONENT WARRANTY CONTENTS Safety Warnings Daily Maintenance Getting to Know your Grinder General Operating Instructions Operating Instructions SPECIFICATIONS Electrical Requirements 115V 50 60 Hz 15 amp circuit Net Weight 780 I
21. ind Dress the wheel when necessary see Dressing the Grinding Wheel on Page 13 Dress the wheel before the final spark out grind For spark out procedure see the top of page 23 By partially grinding both surfaces the top face and the front face as shown in FIG 30 you will resharpen a used bedknife with the least metal removal FIG 30 also shows how much stock would be removed if you ground the top face surface until sharp Par tially grinding both surfaces is the preferred method for life utiliza tion of the bedknife SHUT OFF THE COOLANT PUMP SWITCH BEFORE YOU SHUT OFF THE GRINDING WHEEL TO ALLOW THE WHEEL TO SPIN DRY IF THE WHEEL RETAINS TOO MUCH COOLANT IT WILL BE UNBALANCED WHEN YOU AGAIN TURN ON THE GRINDING MOTOR OPERATING INSTRUCTIONS Continued GRINDING THE TOP FACE NOTE The following instructions presume that you have already studied all previous sections of this manual Position the Head for Top Face Grinding See Fig 31 When rotating from front face grinding to top face grinding the grinding head must be backed out two full turns If you have not preset the top face angle do so at this time per the procedure on Page 16 Rotate the tooling assembly to the top face position up BECAUSE ELECTROMAGNETIC ENERGY IS HOLDING THE BEDKNIFE IN THIS VERTICAL POSITION DO NOT LEAVE THE BED KNIFE IN THIS POSITION FOR EXTENDED PERIODS OF TIME IF THE POWER WOULD INTERRUPT THE STANDBY POWER SUPPLY WILL
22. mm and then let the grinding wheel spark out For sparking out always traverse the grinding head 10 20 passes without cranking the grinding head in further To get the finest top face grind set the TRAVERSE knob at slow speed about 5 FT MIN for this final grinding sparkout This process improves the surface finish of the grind and improves the grind quality NOTE What you are looking for is a near sparkout about a 99 reduction in grinding spark from a normal grind Don t continue sparking out until you have no sparks because this could be an extremely long time SHUT OFF THE COOLANT PUMP SWITCH BEFORE YOU SHUT OFF THE GRINDING WHEEL TO ALLOW THE WHEEL TO SPIN DRY IF THE WHEEL RETAINS TOO MUCH COOLANT IT WILL BE UNBALANCED WHEN YOU AGAIN TURN ON THE GRINDING MOTOR If after grinding when the bedknife bedbar assembly is installed in the mowing unit and it does not appear to be ground straight the right side adjuster on the tooling bar should be verified to be perfectly straight to the grinding head traverse rails To verify use the optional Magnetic Base Dial Indicator Part no 6100501 Set the top face angle pin at 0 de grees and rotate the tooling assembly to the top face grind position Install the magnet base on the top of the motor with the arm extended so the dial indicator touches the electromagnet face See Fig 34 Disengage the traverse actuator with the release lever Slide the grinding head from magnet t
23. nives and bedbars have mounting ears so close to the bedknife top face that there is no clearance for the wheel guard For these applications generally a flared cup grinding wheel should be used and the grinding wheel guard can be loosened and rotated so the clearance area of the guard allows the bedknife to be ground without interference When completed ALWAYS reposition the guard to its normal position with the clearance notch down See FIG 16 FOR OPERATOR SAFETY THE GRINDING WHEEL GUARD MUST BE USED WITH THE CLEARANCE AREA UP ONLY WHEN REQUIRED FOR BEDBAR CLEARANCE GENERAL OPERATING INFORMATION Continued USING FLOOD COOLANT For quality grinding we highly recommend using flood coolant to prevent heat buildup on the knife edge IF YOU DO DRY GRIND NEVER ALLOW THE BEDKNIFE EDGE TO CHANGE COLOR OR YOU o MAY LOSE THE TEMPER IN THE KNIFE EDGE ALWAYS READ THE MATERIAL SAFETY DATA SHEET MSDS FOR THE COOLANT YOU ARE USING BELOW ARE WARNINGS THAT APPLY TO MOST COOLANTS AVOID CONTACT OF COOLANT WITH EYES IT WILL CAUSE EYE IRRITATION WEAR FACE SHIELD OR GOGGLES WHEN HANDLING CONCENTRATE IN CASE OF CONTACT FLUSH EYES WITH WATER FOR 15 MINUTES AND CONTACT A PHYSICIAN AVOID BREATHING MISTS PROVIDE LOCAL VENTILATION KEEP CONCENTRATED BOTTLE CLOSED WHEN NOT IN USE CONTINUED CONTACT OF CONCENTRATE ON SKIN MAY CAUSE IRRITATION WASH WITH SOAP AND WATER AFTER CONTACT DO NOT TAKE INTERNALLY IF INGESTED CONS
24. o magnet The dial indicator on the magnetic base should read zero No change from magnet to mag net If it does not loosen the right side tooling bar adjuster lock tee knob and then adjust the right side adjuster hand wheel until you get zero zero across the two magnets When this is achieved relock the tee knob Now adjust the machine dial indicator which is mounted to the right side tooling adjuster so it reads 500 This is done by loosening the setscrew that holds the dial indicator reposi tioning the indicator and retightening the setscrew Bed knives ground with this setting The same as the factory original setting should be correct REMOVING THE BEDKNIFE Remove the bedknife by rotating the tooling assembly to the front face grinding position down Grasp the bedknife and turn off the electromagnet If the next bedknife to be ground is the same type and size as the previous simply mount it and proceed
25. r the proper location and part numbers of safety decals DO NOT OPERATE THE GRINDER WHEN UNDER THE INFLUENCE OF DRUGS ALCOHOL OR MEDICATION SAFETY INSTRUCTIONS IMPROPER USE OF GRINDING WHEEL MAY CAUSE BREAKAGE AND SERIOUS INJURY Grinding is a safe operation if the few basic rules listed below are followed These rules are based on material contained in the ANSI B7 1 Safety Code for Use Care and Protection of Abrasive Wheels For your safety we suggest you benefit from the experience of others and carefully follow these rules DO DO always HANDLE AND STORE wheels in a CAREFUL manner DO VISUALLY INSPECT all wheels before mounting for possible damage DO CHECK MACHINE SPEED against the established maximum safe operating speed marked on wheel DO CHECK MOUNTING FLANGES for equal and correct diameter DO USE MOUNTING BLOTTERS when supplied with wheels DO be sure WORK REST is properly adjusted DO always USE A SAFETY GUARD COVERING at least one half of the grinding wheel DO allow NEWLY MOUNTED WHEELS to run at operating speed with guard in place for at least one minute before grinding DO always WEAR SAFETY GLASSES or some type of eye protection when grinding 10 DO TURN OFF COOLANT before stopping to avoid creating an out of balance condition DON T DON T use a cracked wheel or one that HAS BEEN DROPPED or has become damaged DON T FORCE a wheel onto the machine
26. rinding wheel contact area when grinding Always stay clear of all rotating and moving parts Insure adequate dust control before operation Only properly trained personnel should operate the machine Keep all visitors a safe distance from the machine Be certain that the cutting unit is securely fastened with the clamps and handles provided before operating Do not ever exceed maximum operating speed SEE PAGE 3 marked on the grinding wheel Read grinding wheel safety section in your manual before grinding FOR GRINDING Disconnect your machine from the main power WHEEL SAFETY source before performing any adjustments mechanical servicing or electrical servicing When machine is in automatic cycle do not leave the work area without turning off power Keep all guards in place and in good repair Before operating inspect the machine for loose damaged or missing parts If found repair or replace Remove all tools from operating area GETTING TO KNOW YOUR GRINDER Fig 1 shows the major areas of the Grinder which will be referred to in the operating instructions in the remainder of this manual The next few pages show details of some of those areas and point out the various controls you will use when operating CONTROL BOX The control box contains the electrical controls for the Grinder START and STOP switches are located on the top panel See Page 7 for details GRINDING HEAD The grinding head consists of the grinding
27. rtain that this setting is within the range of adjustment of your mowing unit If not a YOU MUST RETURN THE TOOLING compromise offset will be ASSEMBLY RIGHT SIDE ADJUSTER required BACK TO THE 500 POSITION FOR THE NEXT BEDKNIFE OR YOU WILL Grind the front face per the instructions on Page 19 and GRIND IT INCORRECTLY 20 Then rotate the tooling bar to the Top Face position and repeat the above procedure to offsetthe Top Face Grind the top face per the instructions on Page 21 24 OPERATING INSTRUCTIONS Continued GRINDING THE FRONT FACE ur NOTE The following instructions presume that you have already studied all previous sections of this manual NOTE On some mower bedknives the front face is curved and therefore may not have to be sharpened Position the Head for Front Face Grinding See Fig 27 If you have not preset the front face angle and top face angle stops do so at this time per the procedure on page 16 Ro tate the tooling assembly to the front face position down Check Clearances and Set Traverse Limits Position the grinding head so that the grinding wheel just touches the front face of the bedknife With the vertical cam and lock lever adjust the grinding head so the grinding wheel rim extends 1 2 12mm or as much as possible above the front face to be ground See FIG 28 IF THE GRINDING WHEEL RIM DOES NOT EXTEND OVER THE BEDKNIFE FACE IT WILL WEAR UNEVENLY AND CAUSE GROOVES ACROSS THE S
28. t face to the correct angle See Fig 20 Move the Tooling Rotation stop pin for the top face to the correct angle See Fig 20 Prepare the Machine for Mounting the Bedknife Pivot the tooling assembly to the horizontal position Front face grinding position Traverse it allthe way to the right then crank the carriage back away from the electromagnets to gain clearance for the bed knife Always wipe any grindings dirt etc from the electro magnets before mounting the bedknife OPERATING INSTRUCTIONS Continued MOUNTING A BEDKNIFE FOR GRINDING Continued MAGNET LOCK KNOB Mount the Bedknife 1 Pull both gage tips forward and rotate to lock into position Loosen the magnet lock knob and on the right side magnet assembly See FIG 21 Set the bedknife bedbar assembly to be ground on the electromagnets Move the right side magnet assembly until the alignment Gace aie gage tips are at both ends of the bedknife then tighten the right side magnet lock knob enough to secure the magnet 2 Check the right side adjuster The dial indicator should read 500 If not loosen the lock tee knob and adjust the handwheel until the dial indicator reads 500 and lock the tee knob See FIG 22 3 Position the bedknife so the unworn tips on a used eee bedknives or the ends of a new bedknife are on the gage DNIA tips See FIG 23 Pull the bedknife forward firmly against the gage tip and then turn on the electromagnets See FIG 24
29. the right end of the bedknife to assure that the right side is not closer to the grind ing wheel Back the wheel out if necessary until you can traverse full length with a very light touch at the closest point OPERATING INSTRUCTIONS Continued GRINDING THE FRONT FACE Continued Grind the Bedknife When you are satisfied with the grinder head travel begin grind ing REFER TO THE SAFETY RULES WHEN GRINDING ON PAGE 3 NOTE During the grinding process watch the spark pattern for the full length of grind the sparks should look equal for the full length of grind 1 With the guard door closed set the GRINDING WHEEL switch at ON 2 Set the COOLANT PUMP switch at ON and check that the nozzle is directing coolant onto the bedknife See FIG 17 3 Set the TRAVERSE knob at about 12 FT MIN NOTE If an excessive amount of metal stock will have to be removed on one end of the bedknife recheck your setup first and then the straightness of the bedknife If it is bowed or twisted replace it 4 Set the carriage traverse switch ON With the horizontal infeed handwheel crank the grinding head in clockwise until the wheel is removing metal lightly from the bedknife It is recommended to take off about 002 to 003 05 to 075 mm per pass NOTE The horizontal adjustment dial is calibrated in 002 05 mm increments 5 Continue grinding the bedknife in this manner until you are satisfied with the front face gr
30. ufacturer Always follow the manufacturer s recommended specifications for bedknife angles Typically however There will be a 8 to 10 degrees clearance angle ground on the top face It will usually be measured relative to the bedknife mounting surface See FIG 8 A There will be a 0 30 degrees clearance angle ground on the front face It will usually be measured relative to a line perpendicular to the bedknife mounting surface See FIG 8 B How to obtain these angles is discussed in more detail in the operating instructions beginning on Page 16 Dull Reel Blade and Bedknita Sharp Reel Blade and Badkrife A Top Face Angle 8 TO 10 RR 3 a s Mounting Suris Front Face Angle Mounting Suro BEDKNIFE This lena ig role 1 Dec mining zur GENERAL OPERATING INFORMATION continued TOOLING ROTATION Ok FACE STOP To achieve the angles as described on page 10 the ACCU Pro bedknife grinder has a movable tooling bar pie with calibrated stops Fig 9 shows the upper or top face ee z me FAGE STRE stop and the lower or front face stop The tooling bar is oe moved from stop to stop with an electromechanical actuator on the left side of the grinder It is moved by pressing the tooling position switch on the control panel TRAVERSE TRAVEL LIMIT PROXIMITY SWITCHES The ACCU Pro bedknife grinder has proximity PROXIMITY SWITCH switches to stop the carriage travel and reverse direction See Fig 10
31. wheel and safety guard and the motor which drives the wheel See Page 8 for details DRIVE CARRIAGE AND VERTICAL ADJUSTER The carriage and vertical adjuster provide a movable support for the grinding head A handwheel see Page 8 for details adjusts the grinding wheel position forward and back An eccentric cam and lock adjusts the grinding wheel position up and down TRAVERSE MOTOR AND DRIVE SHAFT A drive shaft with a linear actuator traverses the carriage from side to side to move the grinding wheel along the bedknife The shaft is driven by a motor at the right end of the machine GRINDING HEAD BEDKNIFE SUPPORTS Two electromagnets assemblies support the bedknife for grinding A fixed electromagnet on the left end and an adjustable electromagnet on the right end See Page 9 for details TOOLING ROTATION To grind the top face and front face of the bedknife the tooling assembly rotates This rotation is accomplished through an electromechanical actuator with calibrated stop pins to set the correct angle See Page 11 for details PROXIMITY SWITCHES Two movable switches determine the left and right limits of carriage traverse An LED on the switch lights when the switch actuator on the bottom of the carriage gets close to the head of the switch touching the switch head with a steel object will trigger the switch See Page 11 for details COOLANT TANK A tank which sets under the Grinder holds liquid coolant to be spraye
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