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Foley 673 Service Manual

Automatic bedknife grinder
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- ORIGINAL INSTRUCTIONS -
MODEL 673
AUTOMATIC
BEDKNIFE GRINDER
SERVICE
MANUAL
You must thoroughly read and understand this manual before assembling or maintaining the
equipment, paying particular attention to the Warning & Safety Instructions.
6737952 (1-2020)

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Summary of Contents for Foley 673

  • Page 1 - ORIGINAL INSTRUCTIONS - MODEL 673 AUTOMATIC BEDKNIFE GRINDER SERVICE MANUAL You must thoroughly read and understand this manual before assembling or maintaining the equipment, paying particular attention to the Warning & Safety Instructions. 6737952 (1-2020)
  • Page 2 - ORIGINAL INSTRUCTIONS - IMPORTANT SAFETY MESSAGE As manufacturers of sharpening equipment, we want to confirm to you, our customers, our concern for safety. We also want to remind you about the simple, basic, and common sense rules of safety when using this equipment.

  • Page 3: Table Of Contents

    - ORIGINAL INSTRUCTIONS - TABLE OF CONTENTS Safety Message ............................2 Safety Instructions ..........................3 -6 Service Data ............................7 Maintenance ............................8 - 13 Adjustments ............................14 - 17 Control Box Component ID ........................18 Troubleshooting ............................. 19 - 35 Parts Diagram ............................

  • Page 4: Safety Instructions

    SAFETY INSTRUCTIONS - ORIGINAL INSTRUCTIONS - TO AVOID INJURY, READ AND UNDERSTAND THE SAFETY ITEMS LISTED BELOW. IF YOU DO NOT UNDERSTAND ANY PART OF THIS MANUAL AND NEED ASSISTANCE, CONTACT YOUR LOCAL DEALER. 1. KEEP GUARDS IN PLACE and in working order. 12.
  • Page 5 SAFETY INSTRUCTIONS - ORIGINAL 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".
  • Page 6 SAFETY INSTRUCTIONS - ORIGINAL INSTRUCTIONS - UNPLUG THE EQUIPMENT PRIOR TO DOING ANY SERVICE ON THIS EQUIPMENT. FAILURE TO REMOVE POWER TO THIS EQUIPMENT BEFORE SERVICING MAY RESULT IN INJURY OR DEATH. IF POWER IS REQUIRED FOR TESTING OR TROUBLESHOOTING, THIS SHOULD BE PERFORMED BY A TRAINED PROFESSIONAL OR LICENSED ELECTRICIAN.

  • Page 7: Service Data

    SERVICE DATA - ORIGINAL INSTRUCTIONS - SKILL AND TRAINING REQUIRED FOR SERVICING This Service Manual is designed for technicians who have the necessary mechanical and electrical knowledge and skills to reliably test and repair the Bedknife Grinder. For those without that background, service can be arranged through a local distributor.

  • Page 8: Maintenance

    MAINTENANCE - ORIGINAL INSTRUCTIONS - LUBRICATION OF LINEAR BEARINGS STEP 1--Thoroughly clean the shafts. STEP 2--Flood spray the two shafts with a spray lubricant (do not use a teflon based lubricant) until the lubricant is dripping off the shafts. Then run the carriage back and forth through its full range of travel.
  • Page 9 MAINTENANCE - ORIGINAL INSTRUCTIONS - TESTING FOR PLAY IN THE BEARINGS USING THE DIAL INDICATOR MUST BE POSITIONED BEARING TESTER FORK OVER THE BEARING BEING TESTED AND LOCATED WITHIN 1" OF THE SIDE OF The traverse bearings on this grinder tend to wear THE CARRIAGE BASE.
  • Page 10 MAINTENANCE - ORIGINAL INSTRUCTIONS - CARRIAGE LINEAR BEARING REPLACEMENT LINEAR BEARING 1. Remove the optional carriage bellows (if used) from the carriage. 2. Remove the four screws of one linear bearing and slide the linear bearing off the end of the carriage shaft. 3.
  • Page 11 - ORIGINAL INSTRUCTIONS - MAGNET REPAIR ASSEMBLY If a magnet is damaged or fails on your 673 ACCU-Pro Bedknife Grinder or if the linear bearing fails, follow the detailed instructions below: 1. Contact the Foley United Customer Service Department at 800-225-9810 and get a Return Goods Authorization (RGA) number.
  • Page 12 MAINTENANCE - ORIGINAL INSTRUCTIONS - 8. Now reinstall the lock block and bellows using the saved fasteners. The screw indicated in FIG. 4 must be left installed in both sides of the INA bearing or the bearing will come apart. The lock block and bellows are designed to use the remaining three screws on the INA bearing for each side for attachment, avoiding the retained screw in the bearing.
  • Page 13 MAINTENANCE - ORIGINAL INSTRUCTIONS - CLEANING AND MAINTENANCE GUIDELINES FOR POLYCARBONATE WINDOWS Adherence to regular and proper cleaning procedures is recommended to preserve appearance and performance. DO NOT USE GASOLINE to clean polycarbonate windows! WASHING TO MINIMIZE SCRATCHING Wash polycarbonate windows with a mild dish-washing liquid detergent and lukewarm water, using a clean soft sponge or a soft cloth.

  • Page 14: Adjustments

    ADJUSTMENTS - ORIGINAL INSTRUCTIONS - TO ADJUST THE TRAVEL LIMIT SENSORS For the travel limit sensors to work properly and reverse the direction of the carriage at each end of a traverse, a distance of 3/16 in. +/- 1/32 [4.75 mm +/- 0.75] must be maintained between the top of the switch and the actuator bracket on the bottom of the carriage.
  • Page 15 ADJUSTMENTS - ORIGINAL INSTRUCTIONS - TRAVERSE BELT TENSION 3/4” [19.0 mm] To adjust the tension on the traverse belt tighten the screws and nuts located at the right side of the traverse belt. Tighten nuts until the compression springs measure 3/4" [19.0 mm].
  • Page 16 ADJUSTMENTS - ORIGINAL INSTRUCTIONS - TRAVERSE DRIVE CONTROL BOARD (TDC) Fwd Torque---FWD TQ The Traverse Drive Control Board has nine The Foward Torque setting determines the potentiometers and four switches as shown maximum current limit for driving the motor in on drawing 6734502 which is included.
  • Page 17 ADJUSTMENTS - ORIGINAL INSTRUCTIONS - FIG. 10 FIG. 11...

  • Page 18: Control Box Component Id

    ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - CONTROL BOX RELAYS: RY2. RY3, RY4, RY5, RY6 STEP MOTOR TRAVERSE DRIVE POWER SUPPLY CONTROL BOARD LOW VOLTAGE PROGRAMMABLE (TDC) RELAY (LVR) LOGIC CONTROL STEPPER INFEED (PLC) CONTROL (SIC) BLUE TERMINAL BLOCKS (TBW) OR (TBB) GREY TERMINAL BLOCKS (TBG) TERMINAL...
  • Page 19 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - SKILL AND TRAINING REQUIRED FOR ELECTRICAL SERVICING This Electrical Troubleshooting section is designed for technicians who have the necessary electrical knowledge and skills to reliably test and repair the electrical system. For those without that background, service can be arranged through your local distributor.
  • Page 20 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--AC Main Power Controls: no electrical power to control panel. Possible Cause Checkout Proceedure Emergency Stop A. Pull Up on ESS Button Machine works Switch(ESS)is depressed Yes--end troubleshooting No--go to Step B. next You must push the System B.
  • Page 21 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--AC Main Power Controls: no electrical power to control panel. Possible Cause Checkout Proceedure No 120 Volts AC power to K. Check for 120V to SCB SCB (03SCB--) to nuetral (blue) terminal out Secondary Circuit Breaker of FTR for 120VAC (SCB) 6 Amp.
  • Page 22 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--Machine Shuts off when you turn on Grinding Motor switch. Possible Cause Checkout Proceedure Guard Door is open. A. Close the guard doors. Machine works Yes--end troubleshooting No--go to Step B. next Low Voltage Relay is B.
  • Page 23 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM-- Grinding Motor not working. Possible Cause Checkout Proceedure Grinding Motor Switch A. Turn GMS switch to on Machine works (GMS) is not on Yes--end troubleshooting No--go to Step B. next Guard door is not closed B.
  • Page 24 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM-- Grinding Motor not working. Possible Cause Checkout Proceedure Bad Circuit Breaker L. Verify Power out of Circuit Check for 120 Volts (AC) from terminals TB2- Breaker at Terminal Strip 2 6 (terminal 6 on right terminal strip) to FTR (TB2) terminal 6.
  • Page 25 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--Traverse Drive not working. Possible Cause Checkout Proceedure Traverse Motor Switch A. Turn TMS switch to on Traverse Works (TMS) is not on Yes--end troubleshooting No--go to Step B. next "Traverse Speed Pot (TSP) B.
  • Page 26 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--Traverse Drive not working. Possible Cause Checkout Proceedure No DC Voltage from (TDC) K. Check for 90 Volts DC across Check (TDC) terminals #A1 to #A2 for 90 Traverse Drive Control (TDC) terminals #A1 to #A2 this voltage drives the DC traverse Yes--got to Step L next motor.
  • Page 27 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--Traverse does not stop to reverse directions when flag goes under the traverse limit sensor on the left side or right side of machine. Possible Cause Checkout Proceedure Gap between flag and A. Gap between flag and If incorrect, adjust per adjustment section of sensor is incorrect.
  • Page 28 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--Traverse Speed Control goes at one speed only. Possible Cause Checkout Proceedure Defective speed control A. Check potentiometer for Check for 10,000 ohms red to white wires potentiometer 10,000 ohms.Remove three Full CCW--0 ohms wires from Traverse Drive Full CW--10,000 ohms Control red, white, and black.
  • Page 29 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--Electromagnets do not function. Possible Cause Checkout Proceedure Elecromagnet switch (EMS) A. Turn EMS switch to on Traverse Works is not on. Yes--end troubleshooting No--go to Step B. next Circuit Breaker tripped B. Check Circuit breaker on Electromagnets work front of Control Panel.
  • Page 30 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--Tooling Bar Rotation Actuator does not function Possible Cause Checkout Proceedure Actuator Motor Switch A. Push (AMS) switch to the up Actuator works (AMS) is not on or Down position. Yes--end troubleshooting No--go to Step B. next Circuit Breaker tripped B.
  • Page 31 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM-- Coolant Pump does not function Possible Cause Checkout Proceedure Coolant Pump Switch (CPS) A. Push CPS switch to ON. Coolant Pump works is not on. Yes--end troubleshooting No--go to Step B. next Coolant flow valve closed. B.
  • Page 32 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM-- Infeed does not function Possible Cause Checkout Proceedure Infeed Switch is not A. Press and hold Infeed Jog Infeed works works pressed. Switch (IJS) switch to ON. Yes--end troubleshooting (Infeed or Outfeed) No--go to Step B. next Note: Pressing infeed will cause a .001"...
  • Page 33 ELECTRICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM-- No Auto function Possible Cause Checkout Proceedure Power is not on. A. Pull up on Red E-stop button Display comes on- Displays 0 and press Reset Button Yes--Skip to Step D No--go to Step B. next Power Supply 2 (PW2) B.
  • Page 34 MECHANICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--Top face of bedknife is ground in a convex shape (high in the center) or concave shape (low in the center) Possible Cause Checkout Proceedure Reason Grinding wheel is loading A. Dress the wheel as A loaded wheel creates undue pressure on up with grinding grit.
  • Page 35 MECHANICAL TROUBLESHOOTING - ORIGINAL INSTRUCTIONS - PROBLEM--Grinding Wheel is glazing too quickly. Possible Cause Checkout Proceedure Reason Wheel needs dressing. A. Dress the wheel before the Wheel will glaze if not dressed often finish-grinding pass on each enough. If grinding wheel is not extended bedknife.
  • Page 36 PARTS LIST 6729503 MAIN BASE ASSEMBLY...
  • Page 37 PARTS LIST (Continued) 6729503 MAIN BASE ASSEMBLY Diagram No. Part No. Description 1..........B190834 ........10--32 x 1/2 Button Head Socket Cap Screw 2..........B250816 ........1/4-20 x 1/2 Button Head Socket Cap Screw 3..........B251011 ........1/4-20 x 5/8 Socket Head Cap Screw 4..........
  • Page 38 PARTS LIST (Continued) 6729503 MAIN BASE ASSEMBLY...
  • Page 39 86..........6709199 ........Proximity Panel 87..........6729014 ........Actuator Assembly W168 (12V Rod End) 88..........6709209 ........Coolant Pump Assembly W118 89..........6739002 ........673 Decal W/CB Symbols 90..........6709568 ........Electrical Box Weldment 91..........6709569 ........Coolant Tank Weldment 92..........
  • Page 40 PARTS LIST (Continued) 6729514 GRINDING HEAD ASSEMBLY...
  • Page 41 PARTS LIST (Continued) 6729514 GRINDING HEAD ASSEMBLY Diagram No. Part No. Description 1..........B190611 ........10-24 x 3/8 Socket Head Cap Screw 2..........B192011 ........10-24 x 1-1/4 Socket Head Cap Screw 3..........B251216 ........1/4-20 x 3/4 Button Head Socket Cap Screw 4..........B252016 ........
  • Page 42 PARTS LIST (Continued) 6739504 GRINDING HEAD INFEED ASSEMBLY...
  • Page 43 PARTS LIST (Continued) 6739504 GRINDING HEAD INFEED ASSEMBLY Diagram No. Part No. Description 1..........B190811 ........10-24 x 1/2 Socket Head Cap Screw 2..........B190813 ........10-24 x 1/2 Button Head Cap Screw 3..........B192831 ........10-32 x 1-3/4 Socket Head Cap Screw 4..........
  • Page 44 PARTS LIST (Continued) 6729509 TRAVERSE & CARRIAGE ASSEMBLY...
  • Page 45 PARTS LIST (Continued) 6729509 TRAVERSE & CARRIAGE ASSEMBLY Diagram No. Part No. Description 1..........B190811 ........10-24X1/2 Socket Head Cap Screw 2..........B191211 ........10-24X3/4 Socket Head Cap Screw 3..........B250816 ........1/4-20X1/2 Button Head Socket Cap Screw 4..........B251026 ........1/4-28X5/8 Socket Head Cap Screw 5..........B252016 ........
  • Page 46 PARTS LIST (Continued) 6709562 BEDKNIFE SUPPORT ASSEMBLY...
  • Page 47 PARTS LIST (Continued) 6709562 BEDKNIFE SUPPORT ASSEMBLY DIAGRAM NO. PART NO. DESCRIPTION 1............. B190411 ..........Socket Head Cap Screw 10-24 x 1/4 2............. B190805 ..........Flat Head Socket Cap Screw 10-24 x 1/2 3............. B191011 ..........Socket Head Cap Screw10-24 x 3/8 4.............
  • Page 48 PARTS LIST (Continued) 6739502 CONTROL PANEL ASSEMBLY...
  • Page 49 27..........6709213 ........Control Travel Stop 28..........6739509 ........Control Panel Weldment W/LED 29..........6739001 ........673 Control Panel Decal 30..........6739005 ........673 Traverse Potentiometer 31..........6739501 ........Control Sub Panel Assembly 32..........6739503 ........673 Control Panel Top Weldment...
  • Page 50 8..........3707378 ........DIN RAIL 14.0 LG 9..........3707487 ........PILOT LAMP SOCKET 10..........3707488 ........AMBER FLUTED DOME LENS 11..........3707489 ........LAMP - 24V 12..........3707556 ........STARTER MAGNETIC 1 HP 13..........6729009 ........PLC AROMAT FOR 673...
  • Page 51 PARTS LIST (Continued) 6739501 CONTROL PANEL SUB-ASSEMBLY DIAGRAM NO. PART NO. DESCRIPTION 14..........3707589 ........CIRCUIT BREAKER 15 AMP 15..........3707625 ........SCREWLESS TERMINAL BLOCK END STOP 16..........3707626 ........JUMPER ADJACENT TERMINAL BLOCK 17..........3707627 ........TERMINAL BLOCK END PLATE 18..........

  • Page 52: Wiring Diagram

    WIRING DIAGRAM 6734502 196SIC 187TB2-19 177TB2-19 206TB2-19 102TB2-19 131GTB-19 23TB2-18 103TB2-18 132GTB-19 130GTB-19 186TBW-18 47GTB-19 134TBW-18 104TB2-17 22TB2-17 195TBW-18 206TBW-18 194TBW-17 96TBW-17 105TB2-16 94TB2-16 203TBW-17 50TBW-17 184TBG-16 212TBG-16 185TBG-16 106TB2-15 21TB2-15 210TBG-15 133TBG-15 204TBG-15 196TBG-15 193TBG-14 205TBG-14 107TB2-14 96TB2-14 135TBG-14 53TBG-14 93TB2-13 135RY2-A1...
  • Page 53 WIRING DIAGRAM 6734502 ALM- ALARM 195SIC-V- 196SIC-V+ AMS - ACTUATOR MOTOR SWITCH BAT - BATTERY (12VDC) CB1 - CIRCUIT BREAKER 1 CB2 - CIRCUIT BREAKER 2 CB3 - CIRCUIT BREAKER 3 CB4 - CIRCUIT BREAKER 4 CPS - COOLANT PUMP SWITCH DSP - 7 SEGMENT DISPLAY EMS - ELECTROMAGNET SWITCH 131PW2-GND...
  • Page 54 ELECTRIC SCHEMATIC 6733502 NEUTRAL 115 VAC MCB- 15 AMP LINE FILTER SCB- 6 AMP ALARM CLOSES WHEN BATTER VOLTAGE IS BETWEEN 11-10VDC. OUTPUT IS SHUT OFF WHEN BATTERY IS BELOW 10 VDC ALARM 10 AMP BATTERY 12 VDC AMBER LIGHT EMS ON/OFF MAGNET MAGNET...