HAAS SERVICE AND OPERATOR MANUAL ARCHIVE
Haas Technical PublicationsManual Archive Cover Page Rev AJune 6, 2013HAAS SERVICE AND OPERATOR MANUAL ARCHIVEVF-Series Service Manual 96-7045 English November 26 1993 This content is for illustrative purposes. Historic machine Service Manuals are posted here to provide information for Haas machine owners. Publications are intended for use only with machines built at the time of original publication. As machine designs change the content of these publications can become obsolete. You should not do mechanical or electrical machine repairs or service procedures unless you are qualifiedand knowledgeable about the processes. Only authorized personnel with the proper training and certification should do many repair procedures.WARNING: Some mechanical and electrical service procedures can beextremely dangerous or life-threatening.Know your skill level and abilities.All information herein is provided as a courtesy for Haas machine ownersfor reference and illustrative purposes only. Haas Automation cannot be heldresponsible for repairs you perform. Only those services and repairs that areprovided by authorized Haas Factory Outlet distributors are guaranteed.Only an authorized Haas Factory Outlet distributor should service or repair aHaas machine that is protected by the original factory warranty. Servicing byany other party automatically voids the factory warranty.
VF Series Service ManualTROUBLESHOOTINGThis section is intended for use in determining the solution to a known problem. Solutions given areintended to give the individual servicing the CNC a pattern to follow in, first, determining the problem'ssource and, second, solving the problem.The troubleshooting tips are organized in this section according to the area of the CNC that may begiving sign of a problem. (Ex.: Out-of round circles in drilling will be found under the heading GeneralMachine Operation - Accuracy).If the problem you are experiencing cannot be found under the heading you expect, please tryseveral other possible headings. If the problem is still not found, contact Haas Automation for furtherdetails.BEFORE YOU BEGIN:· USE COMMON SENSEMany problems are easily overcome by correctly evaluating the situation. All machine operations arecomposed of a program, tools, and tooling. You must look at all three before blaming one as thefault area. If a bored hole is chattering because of an overextended boring bar, don t expect themachine to correct the fault. Don t suspect machine accuracy if the vise bends the part. Don t claimhole mis-positioning if you don't first center-drill the hole.· FIND THE PROBLEM FIRSTMany mechanics tear into things before they understand the problem, hoping that it will appear asthey go. We know this from the fact that more than half of all warranty returned parts are in goodworking order. If the spindle doesn t turn, remember that the spindle is connected to the gear box,which is connected to the spindle motor, which is driven by the spindle drive, which is connected tothe I/O BOARD, which is driven by the computer. The moral here is don t replace the spindle drive ifthe belt is broken. Find the problem first; don t just replace the easiest part to get to.· DON T TINKER WITH THE MACHINEThere are hundreds of parameters, wires, switches, etc., that you can change in this machine. Don tstart randomly changing parts and parameters. Remember, there is a good chance that if youchange something, you will incorrectly install it or break something else in the process. Consider fora moment changing the processor's board. First, you have to download all parameters, remove adozen connectors, replace the board, reload and reconnect, and if you make one mistake or bendone tiny pin it WON'T WORK. You always need to consider the risk of accidentally damaging themachine anytime you work on it. It is cheap insurance to double-check a suspect part before physically changing it. The less work you do on the machine the better.HAAS AUTOMATION, INC.96-7045VF SERIES SERVICE MANUAL1
VF Series Service Manual2VF SERIES SERVICE MANUAL96-7045Publication Date: November 26, 1993
VF Series Service Manual1. General Machine Operation1.1 MACHINE NOTRUNNINGPROBLEM:?· Replace MOTIF PCB (Section 4.1, ElectricalService).PROBLEM:?Machine cannot be powered on.SOLUTION:SOLUTION:· Check for green POWER LED at front of CRT.· Check input voltage to machine (Section 2,Electrical Service).· Check for power connections to CRT fromIOPCB.· Check main circuit breaker at top right ofelectrical cabinet; switch must be at the onposition.· Check video cable (760) from VIDEO PCBto CRT.· Check overvoltage fuses (Section 3.1,Electrical Service).· Check wiring to POWER OFF button onfront control panel.· Replace CRT (Section 5.1, Electrical Service).PROBLEM:?· Check wiring to AUTO OFF relay to IOPCB.· Replace IOPCB (Section 4.3, ElectricalService).· Replace Microprocessor PCB (Section 4.1,Electrical Service).· Replace VIDEO PCB (Section 4.1, ElectricalService).PROBLEM:· Replace MOTIF PCB (Section 4.1, ElectricalService).Machine can be powered on, but turns offby itself.SOLUTION:· Check settings #1 and #2 for Auto OffTimer or Off at M30.· Check alarm history for OVERVOLTAGE orOVERHEAT shutdown.· Check AC power supply lines forintermittent supply.· Check wiring to POWER OFF button onfront control panel.Any LED on Microprocessor PCB goes out(except HALT).SOLUTION:· Replace POWER PCB (Section 4.4, ElectricalService).?Machine turns on, keyboard beeps, but noCRT display.PROBLEM:?Machine turns on, CRT works, but no keyboardkeys work.SOLUTION:· Check keyboard cable (700) from VIDEO toKBIF PCB.· Replace keypad (Section 5.5, ElectricalService).· Replace KBIF PCB (Section 4.6, ElectricalService).· Replace IOPCB (Section 4.3, Electrical Service).· Check Parameter 57 for Power Off at E-STOP.HAAS AUTOMATION, INC.96-7045VF SERIES SERVICE MANUAL3
VF Series Service Manualaccordingly. Vibrations at different speedsare usually caused by all of the aboveexcept that harmonics are in play. If theproblem is severe and cannot simply becorrected, you may have to considerreplacing the gearbox and spindle withfactory-balanced units.1.2 VIBRATIONVibration is a subjective evaluation withperceptions varying among individuals, makingit difficult to determine in mild cases if there isan actual problem. Because the VF Series usesa gear head, it will be noisier than a direct driveor belt system. In obvious cases, it is a matterof determining the source which is not easy,since all parts rotate together and sound can betransferred readily. Vibrations also need to bedistinguished from noise such as a bad bearing.We will assume that vibrations would be something that could be felt by putting your hand onthe spindle covers. One crude method of measurement would be to take an indicator on amagnetic base extended 10 inches between thetable and spindle housing and observe thereading of the indicator. A reading of more than.001 would indicate excessive vibration. The twocommon sources of noise are the spindle andaxis drives.Most complaints about vibration, accuracy,and finish can be attributed to incorrect machining practices such as poor quality or damagedtooling, incorrect speeds or feeds, or poorfixturing. Before concluding that the machine isnot working properly, ensure that good machining practices are being observed.These symptoms will not occur individually(Ex. A machine with backlash may vibrateheavily, yielding a bad finish.). Put all of thesymptoms together to arrive at an accuratepicture of the problem.PROBLEM:?Machine vibrates while jogging the axiswith the hand wheel.SOLUTION:· The HAAS control uses very high gainaccelerations curves. This vibration as youjog is simply the servos quickly trying tofollow the handle divisions. If this is aproblem, try using a smaller division on thehandle. You will notice the vibration moreat individual clicks than when you areturning the handle faster. This is normal.PROBLEM:?The machine vibrates excessively in a cut.SOLUTION:· This is a tough one to call becausemachining practices come into play.Generally speaking, the least rigid elementof a cut is the tool because it is the smallestpart. Any cutter will vibrate if pushedbeyond its tensile strength. In order toeliminate the machine as the source of theproblem, you need to check the spindle andthe backlash of the axes as described inthe following sections. Once machiningpractices have been eliminated as thesource of vibration, observe the machine inboth operation and cutting air. Move theaxes (individually) without the spindleturning and then turn the spindle withoutmoving the axes. Isolate whether thevibration comes from the headstock orfrom an axis. Isolate the source of vibrationper Sections 2.2, 3.2, and Section 6.PROBLEM:?Machine vibrates while spindle is on and isnot cutting. Sometimes only at specificRPM.SOLUTION:· If the spindle alone causes vibration of themachine this is usually caused by the belt/pulley drive system. This occurs becausea pulley is either out of balance, misaligned,or belt tension is incorrect. It is extremelyimportant that when servicing the spindletransmission that pulleys are checked forrunout. Balance is almost impossible tocheck except by trial and error. This methodcan be accomplished by putting additionalwashers under one of the allen bolts of thelocking collar and observing the effect. Bymoving from bolt to bolt you should seebetter or worse results and take action4VF SERIES SERVICE MANUAL96-70451.3ACCURACYBefore you complain of an accuracy problem, please make sure you follow these simpledo s and don ts.· Don t ever use a wiggler test indicator forlinear dimensions. They measure in an arcPublication Date: November 26, 1993
VF Series Service Manualand have sine/cosine errors over largerdistances.· Don t use magnetic bases as accurate teststops. The high accel/decel of the axis cancause them to move.· Don t attach test points to the sheet metalof the spindle head or table.· Don t check for thermal growth with anindicator on a long extension magnetic base.PROBLEM:?SOLUTION:· The spindle is not parallel to the Z axis.Check the spindle sweep to the table andthe squareness of the Z axis with a cylindersquare. If available use a spindle masterbar and indicate the spindle to the Z axis.· Do insure that test indicators and stops areabsolutely rigid and mounted to machinedcasting surfaces.· Do check a suspected error with anotherindicator or method for verification.· Do ensure that the indicator is parallel to theaxis being checked to avoid tangentialreading errors.PROBLEM:?· Check the levelness of the machine (Seethe Installation Manual).Once machining practices have been eliminated as the source of the problem, determinespecifically what the machine is doing wrong.· Check for backlash (Section 3.3).· Check the squareness of the X axis to theY axis.PROBLEM:Machine will not interpolate a round hole.SOLUTION:· Check the levelness of the machine (Seethe Installation Manual).Machine mis-positions holes.SOLUTION:· Do center drill holes before using jobberlength drills if accuracy is questioned.?Bored holes are out of round, or you borea hole at a given X/Y position and thencheck at the same location using a testindicator and it indicates you are out ofposition.PROBLEM:?Machine leaves large steps when using ashell mill.SOLUTION:· Check the levelness of the machine (Seethe Installation Manual).· Check for backlash (Section 3.3).PROBLEM:?Bored holes do not go straight through theworkpiece.· Check the sweep of the machine (Section5.3, Mechanical Service).SOLUTION:· Check the levelness of the machine (Seethe Installation Manual).· Check for squareness in the Z axis.· Cutter diameter too large for depth of cut.1.4FINISHPROBLEM:PROBLEM:?Machine bores holes out-of-round.SOLUTION:· Check the levelness of the machine (Seethe Installation Manual).· Check the sweep of the machine (Section 5.3,Mechanical Service).HAAS AUTOMATION, INC.Machining yields a poor finish.SOLUTION:· Check for backlash (Section 3.3).· Check the condition of the tooling and thespindle (Section 2).96-7045VF SERIES SERVICE MANUAL5
VF Series Service Manual6VF SERIES SERVICE MANUAL96-7045Publication Date: November 26, 1993
VF Series Service Manual2. Spindle2.1 NOT TURNINGPROBLEM:?Spindle not turning.SOLUTION:· If there are any alarms, see Section 6.· Check that the spindle turns freely whenmachine is off.· If motor turns but spindle does not, seeSections 3 and 9, Mechanical Service.· Command spindle to turn on 1800 RPMand check spindle drive display. If displayblinks "bb", check spindle orientationswitch (Section 7, Mechanical Service). Ifspindle drive does not light the RUN LED,check forward/reverse commands fromIOPCB (Section 4.3, Electrical Service).· Check the wiring of analog speed commandfrom MOTIF PCB to spindle drive (cable 720).· If spindle is still not turning, replace MOTIFPCB (Section 4.1, Electrical Service).· If spindle is still not turning, replace spindledrive (Section 5, Mechanical Service).· Check for rotation of the gearbox (VF-1,VF-2, VF-3) or the motor (VF-0). If themotor or gearbox operates, check thedrive belt (Section 3, Mechanical Service).· Disconnect the drive belt. If the spindlewill not turn, it is seized and must bereplaced (Section 5, Mechanical Service).NOTE: Before using the replacementspindle, the cause of the previous failuremust be determined.2.2 NOISEMost noises attributed to the spindle actually lie in the motor/gearbox or drive belt of themachine. Isolate the sources of noise as follows:SOLUTION:· On VF-1, VF-2, and VF-3 models, first determineif the noise is related to the RPM of themotor or the RPM of the spindle. Forexample: If the noise appears at 2000RPM in high gear, listen for a similar noiseat 500 RPM in low gear. If the same noisepersists, the problem lies with the gearbox.If the noise disappears, the problem couldbe either the gearbox or the spindle, andfurther testing is necessary.· Check the alignment of the pulleys to thebelt. Correct as necessary (Sections 3 and4, Mechanical Service).· Remove the head covers and check themachine's drive belt tension (Section 3.3,Mechanical Service). If the noise persists, turn the drive beltover on the pulleys. If the noise issignificantly different, the belt is at fault.Replace the belt(Section 3, Mechanical Service). If the noise does not change, removethe belt and go on to the next step.· Check the pulleys for excessive runout(more than 0.003" axial or radial).· Run the motor (VF-0) or the gearbox (VF-1,VF-2, VF-3) with the drive belt disconnected.If the noise persists, the problem lies withthe gearbox/motor. If it disappears, go onto the next step.· Check for the correct amount of lubricationto the spindle bearings (1-2 cc every twohours) in an air mist-lubricated spindle. If the spindle is not getting lubrication,correct the problem per the lube and airdiagram at the back of this manual andreplace the spindle (Section 5, MechanicalService). If the spindle is getting lubrication, replace the spindle (Section 5, MechanicalService).PROBLEM:?Excessive noise coming from the spindlehead area.HAAS AUTOMATION, INC.96-7045VF SERIES SERVICE MANUAL7
VF Series Service Manual2.3 OVERHEATINGWhen investigating complaints of overheating, a temperature probe must be used toaccurately check the temperature at the top ofthe spindle taper. The temperature displayed inDiagnostics is not relevant.A machine that runs at high RPM continuously will have a much warmer spindle than amachine that runs at a lower RPM. New spindlestend to run much warmer than spindles that havealready been broken in. In order to run a validtest on a new spindle, ensure that it is properlybroken in.To break in a spindle, do the following:· Run the spindle at 300 RPM for at leasttwo (2) hours.· Increase the spindle speed to 1000 RPMfor 20 minutes.· Increase the spindle speed to 3000 RPMfor 20 minutes.· Increase the spindle speed to 7000 RPMfor 20 minutes.· Stop the spindle and allow to cool toroom temperature.· Turn the spindle on to 7000 RPM andmonitor the temperature inside thespindle taper at 15-minute intervalsuntil the temperature drops off, thenstabilizes. This will take about two (2)hours.· Temperatures of about 140 arepossible at the end of this test.If the spindle fails this test, check thefollowing:· Check for correct amount of lubrication(1-2 cc every two hours). NOTE: Overlubrication is a common source of overheating. Check the oil flow carefully.· Check the drive belt tension (Section 3,Mechanical Service). Too-tight beltswill cause heating of the top bearing inthe spindle housing.· Ensure that the correct oil is beingused (Lubrication Chart, page 131).8VF SERIES SERVICE MANUAL96-70452.4STALLING/LOWTORQUEGenerally, complaints of stalling or lowtorque relate to incorrect tooling or machiningpractices. A spindle that is tending to seize willyield a poor finish machining, run very hot andvery loud. Investigate machining problemsbefore concluding the problem exists with thespindle or spindle drive.It is important to consider what horsepowerand torque is available in various speed rangesof the spindle. If your machine is a VF-1 or VF-2(with a transmission), the following horsepowerand torque are available in low gear:SPEED (RPM) TORQUE (ft-lb) HORSEPOWER0-10045-90less than 2100-500903 to 7.5500-125090-357.51250-184035-257.5 to 5If your machine is a VF-0 (no transmission) or aVF-1 or VF-2 and you are in high gear, thefollowing are available:SPEED (RPM) TORQUE (ft-lb) HORSEPOWER0-40011-22less than 2400-2000223 to 7.52000-500022-97.55000-75009-67.5 to 5If your machine is a VF-3, the following horsepower and torque are available in low gear:SPEED (RPM) TORQUE (ft-lb) HORSEPOWER0-12560-120less than 3125-6251204 to 10625-1550120-45101550-184045-3210 to 7If your machine is a VF-3 and you are in highgear, the following are available:SPEED (RPM) TORQUE (ft-lb) HORSEPOWER0-60015-30less than 3600-2500304 to 102500-625030-11106250-750011-910 to 7If you still have spindle torque problems andthere is no mechanical cause such as binding orfriction in the transmission or spindle, the motoror spindle drive are the cause. The first choicePublication Date: November 26, 1993
VF Series Service Manualfor replacement is the spindle drive. If there isstill a problem, the entire motor/transmissionassembly must be replaced.2.5 ORIENTATIONPROBLEM:?Spindle loses correct orientation.SOLUTION:· Check alarm history, looking for spindleoverload and axis overcurrent alarms.These alarms indicate the machine is notbeing properly operated.· Check the orientation ring for tightness(Section 7, Mechanical Service). Ensurethe shaft on which the ring mounts is freeof grease.· Check the orientation ring for cracks nearthe bolt holes or near the balancing holes. If there are cracks, replace the ring(Section 7, Mechanical Service). If there are no cracks, remove the drivebelt (Section 3, Mechanical Service) andverify that the pulley on the transmissionoutput shaft is tight. On most machines,there is no key on the transmission pulley.· Check the shot pin on the gearbox forbinding, damage, and proper operation.Replace it if it is damaged.heavy milling. If sticking only occurs duringthese situations, no service is necessary.SOLUTION:· Check the condition of the customer'stooling, verifying the taper on the toolingis ground and not turned. Look for damageto the taper caused by chips in the taperor rough handling. If the tooling issuspected, try to duplicate the symptomswith different tooling.· Check the condition of the spindle taper.Look for damage caused by chips ordamaged tooling. Also, look for damagesuch as deep gouges in the spindle tapercaused by tool crashing. See Section 5,Mechanical Service, for spindle cartridgereplacement.· Duplicate the cutting conditions underwhich the deflection occurs, but do notexecute an automatic tool change. Tryinstead to release the tool using the toolrelease
HAAS SERVICE AND OPERATOR MANUAL ARCHIVE WARNING: Some mechanical and electrical service procedures can be extremely dangerous or life-threatening. Know your skill level and abilities. All information herein is provided as a courtesy for Haas machine owners for reference and illustrative purposes only. Haas Automation cannot be held
Haas Next Generation and Classic Controls 111 Haas NGC: Entering Mill Offsets 201 Haas NGC: Entering Lathe Offsets 202 Haas NGC: Locating Program Zero on the Mill 211 Haas NGC: Locating Program Zero on the Lathe 212 Haas Mill Classic Control: Panel Overview 250 Haas Lathe Classic Control: Panel Overview 256
TM OPERATION MANUAL THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES. . Bur Haas Symbol rd e Haa s Haas e Haas et Haas a eae Haas at Haa s y a Haas. DLW400ESA4 WELDER/GENERATOR OPERATION MANUAL — REV. # 0 (03/14/18) — PAGE 7 . 2. manual. — .
provided by authorized Haas Factory Outlet distributors are guaranteed. Only an authorized Haas Factory Outlet distributor should service or repair a Haas machine that is protected by the original factory warranty. Servicing by any other party automatically voids the factory warranty. Lathe Operators Manual 96-8700 RevR English June 2007
Productivity Inc Haas CNC TL Series Lathe Operator Manual Page 9 The Haas CNC Control Powering On the Machine To power up a Haas machine, regardless of where the machine turret was when it was turned off, press POWER ON. The machine must first find its fixed machine zero reference point before any operations can occur.
Haas Automation Inc. ("Haas" or "Manufacturer") provides a limited warranty on all new mills, turning centers, and rotary machines (collectively, "CNC Machines") and their components (except those listed below under Limits and Exclusions of Warranty) ("Components") that are manufactured by Haas and sold by Haas or its authorized
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Pile properties: The pile is modeled with structural beam elements and can be assigned either linear-elastic or elastic-perfectly plastic material properties. Up to ten different pile sections can be included in a single analysis. Soil p-y curves: The soil is modeled as a collection of independent (Winkler) springs. The load-
