Harig AUTOMATIC PLC Manual Download Page 1

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AUTOMATIC PLC

SURFACE GRINDER

Harig Products, Inc.

1875 Big Timber Road

Elgin, IL 60123

Phone (847) 695-1000

Fax (847) 695-1043

Summary of Contents for AUTOMATIC PLC

Page 1: ...AUTOMATIC PLC SURFACE GRINDER Harig Products Inc 1875 Big Timber Road Elgin IL 60123 Phone 847 695 1000 Fax 847 695 1043 1 ...

Page 2: ...l Feed 9 Crossfeed 10 Coolant 10 Elevating Mechanism Downfeed 10 Table Park 10 Changing the Direction of the Table Park 11 Grinding Wheel Mounting 11 Grinding Magnetic Chucks 11 12 Maintenance 12 13 Troubleshooting 13 14 Chatter or Vibration Marks in Finish 14 15 Longitudinal Lines Scratchy Finish 15 Inaccurate Grinding 16 Motors Do Not Run 17 18 Oil Dripping 18 19 Uneven Down feed Response 19 20 ...

Page 3: ...or work piece MAKE CERTAIN work piece is SECURELY held in place NEVER attempt to hand hold or hand feed a work piece NEVER exceed the machine s capacity Refer to the proper ANSI OSHA Safety Codes for the care use and testing of grinding wheels Stop the machine and correct any malfunctions immediately see Maintenance manual or contact your supervisor Lock the table when you are not grinding Inspect...

Page 4: ... uneven areas If you experience rocking you will need to shim one end so that the chuck will be stable while grinding 2 To prevent the chuck from further moving while being ground block each end Do not clamp the ends or hold the chuck in place by energizing the chuck because warping may occur 3 Using a general purpose medium hardness 46 grit type grinding wheel wet grind the chuck with a non nitra...

Page 5: ...change the coolant if needed Check the spindle for noisy operation Make maintenance recommendations for any potential problems found Every 1000 hrs of run time Clean the oil pump filter clean the reservoir and change the oil Check the lube lines for leaks Check the hydraulic pump pressure fluid level and filter Clean the filter if needed Harig Hydraulic Oil Single Gallon Part No 16211213 Check the...

Page 6: ...t side of the stand Be sure to have this switch turned ON then momentarily turn the Power switch on the front panel to the right to begin operation Power On Off Switch Front Panel Table Spindle Crossfeed Crossfeed Thumbwheel Power Coolant Hydraulic Emergency Stop 6 ...

Page 7: ...10 Fig 6 Balance the machine by turning the cross feed hand wheel For safety support the machine on two 4ft pieces of 4 x 4 while installing leveling legs 2 5 Screw the 4 leveling legs located in standard accessory box into the holes in the base of the cabinet to project 5 8 below the bottom Step 3 Position the Machine Position your machine where desired No special pad floor reinforcement or drip ...

Page 8: ...pipe is a satisfactory ground If a satisfactory ground is not available drive an 8 foot copper ground rod into the ground and securely clamp the ground wire to it 9 2 Compare the rating label on the back of the spindle motor with your house current to make certain they correspond 9 3 Turn the main power disconnect handle to the OFF position and loosen the turn screws Open the control compartment C...

Page 9: ...longitudinal feed handwheel out about 1 1 4 inches Fig 5 A Momentarily turn the Table button towards the ON position The handwheel electrically locks out the hydraulic feed when engaged Once the table is started the control will keep track of directions and reversals until the main disconnect is turned off even if the proximity switch is tripped while moving the table manually The table will now p...

Page 10: ... to 9999 Turn the switch towards the OFF position to run the Crossfeed manually again COOLANT WET GRIND Your grinder may have come with a Coolant System Once installed your Wet Grind will turn on by turning the Coolant switch towards ON ELEVATING MECHANISM DOWNFEED Raise or lower grinding head assembly by turning handwheel Fig 7 A on the right side of the top of the column To change zero setting l...

Page 11: ...tighten under starting torque When changing wheel be sure adaptor is retightened If left loosed wheel may shift and cause chatter marks The socket on one spanner wrench fits the nut holding the adaptor on the spindle To remove adaptor unscrew nut completely left hand thread and screw in the puller furnished until the center screw hits the spindle end Tighten center screw until adaptor is free Fig ...

Page 12: ...aximum speed 52 ft min 5 Take a cross feed cut of at least 060 inch for each pass and set the depth of cut to 0002 inch 6 Dress the wheel after each cut across chuck to remove any lead 7 A loaded wheel whether caused by heavy cuts improper dressing or the wrong type of wheel can create heat building sufficient enough to warp the center of the chuck up into the wheel and seriously affect chuck flat...

Page 13: ... required are the following periodic checks D Check th Way Oil Part No 16211245 furnished with machine to bring level nearly full E Check hydraulic tank oil level R turn screws Sight gauge should indicate at least above the halfway point If not add Harig Hydraulic Oil Part No 16211213 Viscosity 115 SUS to bring the level to full C Using anything other than Harig Way Oil Part No 16211245 will void ...

Page 14: ...essing has been used for a time it is probably due to the fact that most grinding wheels vary in hardness around the periphery Since this chatter appearance is usually A Put additional tension on wh be causing wheel to shift slightly Redress after adding tension to the wheel nut B All grinding wheels are out o by holding the projecting part of the spindle housing while the grinder is running with ...

Page 15: ...this test F Grade of wheel to L Replace wheel with one of a so G Taper of adaptor sleeve in error If dirt or grit has been assembled on the ta sleeve by putting a thin film of Prussian blue inside the sleeve and press it on the spindle The spindle taper should show contact all around the circumference on two separate rings H Ball bearing failure T If a failure of either the sp being ground and a n...

Page 16: ...el or replace the wheel with a softer grade C Machine out of level Be sure that the cast stand is level The thickness of the four th V ways are exactly paralle anything other than its own cast stand and vibration isolation pads check base ways for twist by laying a small surface plate on two 1 000 inch rolls in the V ways and add two 582 0002 parallels on the flat ways of the base If the two rolls...

Page 17: ...performed by an authorized Harig distributor B Fuse blown out If more than one motor will not run if a motor runs slowly or if power on light will not turn on one or more fuses may be blown There are th p the machine to make equal or not more than 10 higher amperage If a single element fuse is used for replacement be sure it is rated at 3 times the amperage of the dual element fuse On rare occasio...

Page 18: ...made and one or more motors still do not run check motor starters and control panel wiring Open control compartment and visually che c starter solenoid with a fully in CAUTION Electrical connection or services to preclude personal injury or extensive machine damage All electrical service must be performed by an authorized Harig distributor Violation will void the warranty If motors run check contr...

Page 19: ...nd of the spindle Loosen the five 16 set screws holding the spindle cartridge in the housing approximately 1 8 The spindle dirt If grinder has been stopped and restarted with the wh sh center Retighten grin B No oil on column ways Check oil level in sight glass at the o oil if necessary Harig Part running and that filter screen is clean See LUBRICATION under MAINTENANCE Check that oil lines are in...

Page 20: ...cting to the front of the grinder With the column ways wiped clean of oil alternately twist the spindle housing from one side to the other The difference on the indicator reading when the twisting pressure is released should be less than 0005 Make this check at both the top and bottom positions of the spindle housing a well as in the middle and use the lowest reading Remove the back plate from the...

Page 21: ...ize this condition 8 CROSS FEED MALFUNCTION A Normal Operation utomatic cross feed occurs when the electric A module turns on the stepping motor The feed e hydraulic control output relay changes states as the table changes cycle is started when th direction Cross feed continues until the electronic module has moved the stepping motor the correct number of steps each step equal 0001 The feed distan...

Page 22: ...1 HARIG WAY OIL GAL 16211245 PUMP 16211506 115VOLT LUBRICATION SYSTEM ...

Page 23: ...CROSS FEED LOCK CLAMP ASSEMBLY 2 ...

Page 24: ...HYDRAULIC SYSTEM SCHEMATI psi bar 100xkP a HY DR AU LIC S C O NT INE NT A L SPEED CONTROL VALVE 17746556 3 ...

Page 25: ...SPINDLE AND ELEVATING ASSEMBLY COUPLINGS 16213126 COMPLETE SPINDLE ASSEMBLY 2HP 16211375 3HP 16211418 4 ...

Page 26: ...5 ELEVATING SCREW AND HAND WHEEL ASSEMBLY ...

Page 27: ...6 AUTOMATIC CROSS FEED ASSEMBLY ...

Page 28: ...8 16815665 618 GRINDER LONGITUDINAL POWER FEED ...

Page 29: ...ation Valve Pressure adjustment valve Oil level temp gauge Oil drain Table park solenoid Table park speed adjustment Hydraulic oil 16211213 Hydraulic pump assembly 17746596 Pressure gauge 17746581 Filter 17746626 Filter gauge 17746579 ...

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