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SERVICE MANUAL M a g n a S h e a r

1. CHECKING THE BRAKE COIL OPERATION FORCE CONTROL INDUSTRIES INC INDUSTRIAL Section 6 TROUBLE SHOOTING 6 1 TROUBLE SHOOTING CHART eee 9 6 2 TROUBLE SHOOTING COILS 10 Section 7 REPAIR and REPLACEMENT 7 1 GENERAL INFORMATION enne 11 7 2 CLEANING AND INSPECTION eene 11 7 3 REPAIR OR REPLACEMENT nenne 11 7 4 MEASURING STACK HEIGHT 11 7 5 REPLACING BRAKE STACK 2 12 7 6 REPLACING CIRCUIT BOARD eene 13 7 7 REPLACING HOLDING COIL eee 14 Disassembly een 14 B Reassembly S 14 7 8 REPLACING ARMATURE PLATE BUSHINGS 14 7 9 REPLACING OIL SEAL 31 14 7 10 REPLACING HUB amp FAN SUB ASSEMBLY 15 Section 8 ILLUSTRATED PARTS LIST 8 1 GENERAL INFORMATION nenne 16 8 2 DRIVE MOTORS croire a rU ERREUR 16 8 3 FACTORY REBUILD SERVICE 16 8 4 ORDERING REPLACEMENT 16 8 5 NAME PLATE AND MODEL NUMBER 17 REPAIR PARTS LISTS Pans BIS FOUTE B T 18 Figure 8
2. 442 1 95 72 60 ventas industrialmagza com 6 2 TROUBLESHOOTING COILS A Coil Resistance Test Remove the cover from the Junction Box 405 and disconnect the 2 Coil Leads from both terminals on the Terminal Strip J1 located on the Circuit Board 400 Hook Up a Meg Ohmmeter to both coil leads as shown in Figure 6 1 Set the Meg Ohmmeter to Ohm range and test Resistance at 500 VDC The Resistance should read as follows MSB2 Coil Resistance 47 Ohms 10 A reading outside of this range would indicate that the Coil is bad and needs to be replaced See Section 7 for Coil Replacement BRAKE RESISTANCE SIZE OHMS MSB2 47 x 10 SET TO OHM POSITION MEG 0HMMETER MEG OHM JUNCTION BOX WITH COVER REMOVED REMOVE COIL LEADS FROM TERMINALS ON J1 AND CLIP A MEG OHMMETER TO THEM Figure 6 1 Coil Resistance Testing NOTE A Hi Pot Tester can be used for this test but do not exceed 1250 VDC 10 INDUSTRIAL B Coil Current Leakage Test Remove the cover from the Junction Box 405 and disconnect the 2 Coil Leads from both terminals on the Terminal Strip J1 located on the Circuit Board 400 Connect 1 alligator clip to both Coil Leads and the other one to Chassis Ground Screw 426 See Figure 6 2 A reading of 10 Meg Ohms or greater indicates that the Coil is fine and does not need to be replaced Anything much less would indicate that there is a short to ground
3. 129 from the Input Housing 15 and lift it off the Main Housing 8 5 Remove the O Ring 104 and discard it 6 Press the Oil Seal 31 out of the Input Housing 15 7 Clean out the oil seal bore and lightly coat the bore with Permatex 3D Sealant Press the new Oil Seal 31 into the bore with an arbor press 8 Lubricate a new O Ring 104 and place it in the o ring groove in the Input Housing 15 9 Attach the Input Housing 15 with the 2 Screws 72 and 2 Lockwashers 129 Torque to 14 Ft Lbs FORCE CONTROL INDUSTRIES INC MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com 10 Lubricate the lip of the Oil Seal 31 and the Wear 11 Sleeve 32 with a little vaseline or equivalent Slide the Brake Assembly over the 2 Studs 155 and onto the hub spline as far as it will go You will probably have to rotate the motor shaft to align the spline teeth with the brake stack CAUTION Be very careful not to damage the lip of the Oil Seal 31 IMPORTANT Be sure that all of the Friction Disc splines are engaged on the Hub spline before installing the Allen Nuts 136 Also look inside the Fan Shroud to be sure that the Brake is fully seated in the Fan Shroud 12 Install the 2 Lockwashers 127 and 2 Allen Nuts 136 to the extended Studs 155 Torque to 25 Ft Lbs 13 Make sure that all the fittings pipe
4. AUTORIZADO 442 1 95 72 60 ventas industrialmagza com REPAIR PARTS LIST MSB2 MagnaShear Motor Brake Electric Box and Circuit Board Figure 8 3 Ref No 400 Circuit Board Button Hd Screw 10 24 x 1 4 405 Junction Box Pan Hd Screw 8 32 x 1 2 410 Indicator Lamp Button Hd Cap Screw 1 4 20 x 1 2 415 Electrical Fitting Nylon Washer 416 Receptacle 5 Pin Lock Washer 1 4 417 Receptacle Nut Stand Off 425 Gasket NOTES Indicates parts in Overhaul Kit MSB2 MagnaShear Motor Brake Electric Box and Circuit Board CIRCUIT BOARD Figure 8 3 MSB2 MagnaShear Motor Brake Electric Box and Circuit Board 22 FORCE CONTROL INDUSTRIES INC 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 1 95 72 60 ventas industrialmagza com REPAIR PARTS LIST MSB2 MagnaShear Motor Brake Vertical Installation Figure 8 4 Air Breather 1 8 x 1 1 2 Lg Pipe Nipple Sight Gauge 3 8 x 1 3 4 Lg Nipple Vert Down Only 3 8 NPT Pipe Plug Sq Hd 3 8 NPT Pipe Plug 3 8 NPT Street Elbow Vert Up Only Vertical Up 1 8 NPT Pipe Plug Vert Down Only Vertical Down 1 8 NPT Elbow Vert Down Only 3 8 NPT Elbow Vert Down Only 1 8 NPT Pipe Cap Vert Up Only NOTES Indicates parts in Overhaul Kit MSB2 MagnaShear Motor Brake Vertical Installation VERTICAL UP VERTICAL DOWN Figure 8
5. and the Coil would need to be replaced See Section 7 for Coil Replacement MEG OHMMETER SET TO MEG 0HM POSITION CHASSIS GROUND SCREW 426 REMOVE COIL LEADS FROM TERMINALS ON J1 TWIST THEM TOGETHER amp CLIP A MEG OHMMETER TO THEM AS SHOWN JUNCTION BOX WITH COVER REMOVED Figure 6 2 Coil Current Leakage Testing NOTE A Hi Pot Tester can be used for this test but do not exceed 1250 VDC FORCE CONTROL INDUSTRIES INC MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com Section 7 REPAIR and REPLACEMENT WARNING SHUT OFF AND LOCK OUT ALL ELECTRICAL POWER BEFORE ATTEMPTING TO MAKE ANY REPAIRS TO THE BRAKE UNIT 7 1 GENERAL INFORMATION Unless the Motor Brake is to be completely overhauled it should be disassembled only to the extent necessary to gain access to the worn or damaged parts During disassembly and reassembly procedure refer to the exploded view drawings in Section 8 for a visual ref erence to all parts They are as follows 1 Figure 8 1 Fan Shroud Fan Collet and Hub 2 Figure 8 2 MSB2 MagnaShear Motor Brake 3 Figure 8 3 Electric Box and Circuit Board 4 Figure 8 4 Vertical Installation 7 2 CLEANING AND INSPECTION Clean metal parts in a suitable solvent and dry with low pressure compressed air The Drive Plates 12 can be cleaned in a solvent but DO NOT clean the Friction Discs 13 in solvent Use on
6. 0 18 227 DIST AUTORIZADO 442 1 95 72 60 ventas industrialmagza com Section 3 INSTALLATION IMPORTANT SAFETY PRECAUTIONS The MagnaShear Motor Brake units described in this manual must not be installed in any manner except as specified and must not be operated at speeds horsepower loads or temperatures other than those specified in this manual Failure to limit the operation of the drive to the con ditions specified could damage the unit or damage interconnected equipment and void the Warranty WARNING BEFORE INSTALLATION OR ATTEMPTING ANY REPAIRS TO THE MOTOR BRAKE OPEN THE DISCON NECTS TO THE DRIVE MOTOR LOCK IT OUT TO AVOID THE POSSIBILITY OF PERSONAL INJURY 3 1 RECEIVING THE MagnaShear MOTOR BRAKE Check the brake for shortage or damage immediately after arrival Prompt reporting to the carriers agent with notations made on the freight bill will expedite satisfac tory adjustment by the carrier A Assembled Electric Brake Motor EBM If your MagnaShear Motor Brake is shipped pre assembled to a drive motor it is filled with oil and ready to run except for installing the Air Breather 45 and electrical wiring See Figure 3 2 and 3 3 for Electrical Wiring Diagram NOTE Before shipment the Air Breather 45 is removed and a pipe plug put in its place This is done to prevent oil spillage during shipment In most cases this will be a red plastic plug This plug must be removed and the Brea
7. 1 MSB2 MagnaShear Motor Brake Fan Shroud Fan Collet and Hub 19 Parts List Figure 8 2 20 Figure 8 2 Repair Parts MSB2 MagnaShear Motor Brake 21 Parts List Figure 8 3 eere 22 Figure 8 3 Electric Box and Circuit Board 22 Parts List Figure 8 4 eene 23 Figure 8 4 Vertical Installation 23 MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 1 95 72 60 ventas industrialmagza com Section 1 DESCRIPTION and OPERATION 1 1 UNIT DESCRIPTION The MSB2 MagnaShear Fully Electric Motor Brake with Oil Shear dependability is available with 4 1 2 FAK NEMA standard mounting flange IEC Frames are also available Spring set torque ratings range are 6 Lb Ft to 12 Lb Ft A spring set brake stack is released when 120 VAC power is supplied to the Brake Coil Control logic is made simple by use of the motor starter auxiliary con tactors Back EMF effect from the motor windings is eliminated The units are ideal for a wide variety of applications including indexing tables lifts transfer conveyors tap heads and other start stop devices Applications requir ing the brake to be released on an average of more than 50 of the time o
8. 17 55 58 63 28 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com REPAIR PARTS LIST Figure 8 1 MSB2 MagnaShear MOTOR BRAKE Fan Shroud Fan Collet and Hub Ref No A2 Brake Hub 7 Adapter Fan Shroud Lockwasher 3 8 A 32 Wear Sleeve Allen Nut 3 8 16 81 Brass Washer Low Hd Screw 3 8 16 x 1 1 4 Lg 94 Hex Hd Screw 3 8 16 x 1 1 4 Lg Stud 3 8 16 x 7 Lg A105 O Ring Hub and Fan Sub Assembly 110 Collet 5 8 Dia Bore 7 8 Dia Bore A These parts cannot be ordered as individual parts They are a part of the Hub and Fan Sub Assembly 900 18 FORCE CONTROL INDUSTRIES INC 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 1 95 72 60 ventas industrialmagza com MSB2 MagnaShear Motor Brake Fan Shroud Fan Collet and Hub SUB ASSEMBLY See Figure 8 3 TORQUE REQUIREMENTS S E SCREW 149 25 Ft Lbs MagnaShear MSB2 il i ai ELECTRIC BRAKE SUB ASSEMBLY See Figure 8 4 for VERTICAL INSTALLATION See Figure 8 2 Figure 8 1 MSB2 MagnaShear Motor Brake Fan Shroud Fan Collet and Hub FORCE CONTROL INDUSTRIES INC 19 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 1 95 72 60 ventas industrialmagza com REPAIR PARTS LIST MSB2 MagnaShear Motor Brake Sub Assembly Figure 8 2 Ref No 5 Thrust Plate Pi
9. 4 MSB2 MagnaShear Motor Brake Vertical Installation FORCE CONTROL INDUSTRIES INC 55 53 63 23 31 MTY 81 83 54 10 18 SL DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com 23 Manual Revision amp Printing History MSB2 MagnaShear Motor Brake REVISION REVISION REVISION PRINTING ME REVISION ACTION DESCRIPTION SED LL Optimized digital size of document Made new PDF document Converted to Windows platform Added Revision Histor y ed 502 MSB2 001 02 1 04 Brooks Brooks 24 FORCE CONTROL INDUSTRIES INC CX MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 1957260 ventas industrialmagza com FORCE CONTROL INDUSTRIES INC Worldwide Leader in Oil Shear Product Design Providing Todays Industries with Oil Shear Clutch Brake Drives and Electronic Drive Systems That Delivers Flexibility e Efficiency Endurance Performance Dependability Built to Last Guaranteed to Perform FORCE CON TROL FORCE CONTROL INDUSTRIES INC MAIN OFFICE P O Box 18366 Fairfield Ohio 45018 3660 Dixie Highway Fairfield Ohio 45014 Tel 513 868 0900 Fax 513 868 2105 E Mail info forcecontrol com Web www forcecontrol com 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 1 95 72 60 ventas industrialmagza com
10. 777 ISO 9001 WI 502 MSB2 001 02 SERVICE MANUAL FOR 5 2 MagnasShear FULLY ELECTRIC OIL SHEAR MOTOR BRAKE WARNING Read this manual before any installation maintenance or operation FORCE CONTROL MANUFACTURERS OF MECHANICAL AND FORCE CONTROL INDUSTRIES INC ELECTRICAL POWER TRANSMISSION EQUIPMENT INDUSTRIAL MEX 55 53 63 23 31 MTY 81 83 54 10 18 EES DIST AUTORIZADO 442 1 95 72 60 ventas industrialmagza com Limited Warranty Upon written approval of the application by Force Control Industries Inc the standard warranty period will be extended to 24 months from date of shipment Force Control Industries Inc Force Control warrants its products to be free from defects in material and workmanship under normal and proper use for a period of one year from the date of shipment Any products purchased from Force Control that upon inspec tion at Force Control s factory prove to be defective as a result of normal use during the one year period will be repaired or replaced at Force Controls option without any charge for parts or labor This limited warranty shall be void in regard to 1 any product or part thereof which has been altered or repaired by a buyer without Force Control s previous written consent or 2 any product or part thereof that has been subjected to unusual elec trical physical or mechanical stress or upon which the original identification marks have be
11. ECIFICATIONS 2 1 2 2 2 3 2 4 MagnaShear MOTOR BRAKE SPECIFICATIONS THERMAL HORSEPOWER RATING MagnaShear EBM SPECIFICATIONS MagnaShear MOTOR BRAKE DIMENSIONS Section 3 INSTALLATION and START UP IMPORTANT SAFETY PRECAUTIONS 3 1 3 2 3 3 3 4 3 5 3 6 RECEIVING THE MagnaShear MOTOR BRAKE A Assembled Electric Brake Motor EBM B MagnaShear Motor Brake VERIFYING MOTOR SPECIFICATIONS CHECKING BRAKE STACK ALIGNMENT MOUNTING THE BRAKE TO THE MOTOR WIRING SPECIFICATIONS 002 SIDE a Section 4 LUBRICATION 4 1 4 2 4 3 4 4 CHECKING THE OIL LEVEL 0 2 4 OPERATINGTEMPERATURES eene A Ambient Temperatures Oil SUMP Temperature eee CHANGING THE 0 0 002 2240 A Horizontal and Vertical Brake Down B Vertical Brake TYPE OF OIL eeeeeeerrernnnnnnnnnnnn Section 5 OPERATIONAL CHECKS 9 1 5 2 CHECKING THE BRAKE OPERATION
12. Hd Bolt into the Hub 2 until it contacts the 3 8 16 x 1 2 Lg set screw Holding the Hub 2 with the screw driver continue turning the bolt until the Hub 2 is forced off the Collet 110 See Figure 7 4 Remove both the 3 8 16 Set Screw and the 1 2 13 Hex Hd Bolt Mount the Collet 110 Hub and Fan Sub Assembly 2900 and the Motor Brake Assembly back on the motor as described in Section 3 4 MOUNTING THE BRAKE TO THE MOTOR Make an Operational Check to make sure that every thing in properly re assembled See Section 5 OPERATIONAL CHECKS 15 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com Section 8 ILLUSTRATED PARTS LIST 8 1 GENERAL INFORMATION This section illustrates lists and describes all parts for the MSB2 MagnaShear Motor Brake Parts are identi fied on the exploded views with Part Reference Numbers These Numbers correspond to the Part Reference Number given in the Parts Lists The Part Name and Quantity Used is also given in the Parts List This Part Reference Number Part Name and Quantity should be used when ordering Replacement Parts 8 2 DRIVE MOTORS The Drive Motors used with these MagnaShear Motor Brakes are standard motors and may be repaired or replaced by any qualified Motor Re build Facility or Supplier 8 3 FACTORY REBUILD SERVICE Reconditioning Service is offered by Force Control Industries Inc at the factory A complet
13. MA MG 1 Standard Hot Pilot Dia Allowable Allowable Allowable imensions Minus Shaft Runout Face Runout m amet NE NP m a PH E CAUTION T I R in excess of this maximum will result in a potential leak condition 3 3 CHECKING BRAKE STACK ALIGNMENT It will first be necessary to check the brake stack to make sure that the friction disc splines are all aligned with each other Use the following procedure 1 Place the brake on the work bench in a vertical posi tion with the Input Housing 15 pointing upwards 2 With a flashlight visually check the brake stack to see if the spline teeth are all aligned with each other FORCE CONTROL INDUSTRIES INC MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com 2 STUDS 155 DRIVE MOTOR FACE 6 1 4 772222744444 Figure 3 2 Hub Alignment If they are not aligned with each other then 120 VAC will have to be applied to the brake coil to release the brake stack 3 Remove the cover from the Electric Box 405 and with a similar Test Set up which is shown in Figure 5 1 apply 120 VAC to the Terminal Strip J1 on the Circuit Board 400 This will release the brake stack Lubricate the lip of the Oil Seal 31 located in the Input Housing 15 with a little vaseline or white grease With a screw driver or appropriate t
14. alent and re install them back into the hub Do not tighten the screw at this time The Collet 110 must be loose in the hub bore Slide the Hub and Fan Sub Assembly 900 with the Collet 110 in place over the motor shaft IMPORTANT Do not lubricate the motor shaft or collet bore Tape a steel straightedge to the face of the Fan Shroud 7 as shown in Figure 3 2 above Tap the Hub and Fan Sub Assembly 900 lightly to position it on the motor shaft The Hub 2 has a notch machined in it for positioning Align this notch 5 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com with the back edge of the straightedge as shown in Figure 3 2 This alignment should be 1 64 NOTE The hub and collet will move approx 1 32 further onto the shaft when the Screw 94 is tightened Take this into account when positioning the hub on the shaft 7 Tighten Screw 94 after the hub and collet have been properly positioned Torque to 25 Ft Lbs 8 Re check alignment If it is within the 1 64 toler ance remove the straightedge If it isn t loosen and remove the Screw 94 Re apply the Blue Loctite 242 to the screw threads and repeat Steps 3 thru 8 9 Lubricate the Wear Sleeve 32 located on the Fan 120 with a little vaseline or white grease Also re coat the lip of the Oil Seal 31 with a little vaseline or white grease 10 Slide the Brake Sub A
15. ate a new O Ring 104 with Vaseline or equivalent and install it on the End Housing 9 10 Set the Main Housing 8 in place 11 Lubricate the other new O Ring 104 with Vaseline or equivalent and install it into the o ring groove of the Input Housing 15 12 Set the Input Housing 15 in place on the Main Housing 8 13 Attach with 2 Screws 72 and 2 Lockwashers 129 Torque to 14 Ft Lbs If the Brake Stack is the only repair to be made then re attach the Brake Assembly to the Fan Shroud 7 and the motor face Electric Box Connector shown in Position COIL LEADS COMPRESSION NUT RUBBER SEAL ELECTRICAL FITTING 415 ELECTRICAL BOX 405 ELECTRICAL FITTING 415 Figure 7 3 Electric Box with Cover Removed FORCE CONTROL INDUSTRIES INC INDUSTRIAL 14 First lubricate the lip of the Oil Seal 31 with Vaseline or equivalent Carefully slide the Brake Assembly over the 2 extended Studs 155 Be very careful not to damage the oil seal lip NOTE You will probably have to rotate the motor shaft by hand to align the spline on the Hub 2 with the spline teeth in the brake stack 15 Attach with 2 Lockwashers 127 and 2 Allen Nuts 136 Torque to 25 Ft Lbs 16 Replace the drain plugs and or any other fittings removed and fill with fresh oil as specified in Section 4 LUBRICATION 7 6 REPLACING CIRCUIT BOARD 400 See Figure 7 3 1 Take the cover off t
16. cuit Faulty MagnaShear circuit board Replace circuit board Worn friction surfaces Check disc stack for wear and replace if necessary 2 Brake fails to release properly Electrical control circuit Check control circuit Faulty MagnaShear circuit board Replace circuit board Faulty coil Replace coil Low voltage at coil Check wire size and voltage 3 Brake torque too high Excessive spring force Contact Force Control Low oil level Check oil level and add oil 4 Brake torque too low Inadequate spring force Contact Force Control 5 Noise and vibration Motor mounted on poor foundation Improve installation Tighten mounting bolts 6 Drive overheats Brake fails to engage See 1 and 2 above 200 F max or disengage properly Improper oil level Check oil level Add Drain as req d 7 Oil leakage Bad oil seal Disassemble and replace Gaskets Tighten all external screws Poor ventilation Remove breather and clean 8 Brake does not repeat Electrical control circuit Check control circuit Faulty MagnaShear circuit board Replace circuit board Oil temperature change Check temperature Machine resistance changed Lubricate bearings For installations requiring precise starting and stopping operating temperatures are important Operating tempera tures between 115 F and 165 are recommended FORCE CONTROL INDUSTRIES INC 9 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO
17. d oil used in the MSB2 MagnaShear Motor Brake was designed to operate in ambient tempera tures up to 125 F If the ambient temperature will fall outside of this range please contact Force Control Industries Inc for specific recommendations on proper lubricant and oil seals B Sump Temperature The maximum recommended oil sump temperature is 200 F 4 3 CHANGING THE OIL See Figure 4 1 below IMPORTANT Always open the disconnects to the drive motor and lock them out before changing the oil Every three months completely drain the oil from the Horizontal PIPE PLUG 62 REMOVE TO FILL PIPE PLUG 64 REMOVE TO DRAIN Figure 4 1 Lubrication FORCE CONTROL INDUSTRIES INC INDUSTRIAL Vertical Brake Down PIPE PLUG 64 REMOVE TO DRAIN brake by removing the Drain Plug 64 or the Pipe Cap 67 The Sight Gauge 46 and Air Breather 45 should also be removed and cleaned at this time The oil should be changed more frequently when used in harsh environments or high cyclic applications A Horizontal and Vertical Brake Down 1 Remove Pipe Plug 64 and drain out all of the oil into a suitable container Save or discard as condi tion warrants Replace the drain pipe plug when fin ished 2 Remove the Pipe Plug 62 and fill with fresh oil to the center of the Sight Gauge 46 Replace the fill pipe plug when finished Vertical Brake Up Remove Pipe Cap 67 and drain out all of the oi
18. d up with a Drive Plate 12 on top 4 Place any shims that are required for the correct stack height on last It will now be necessary to energize the brake coil to get the 3 Hex Nuts 165 3 Lockwashers 128 and 3 Flat Washers 193 on the 3 Driver Pins 195 THRUST PLATE 5 3 HEX NUTS 165 3 LOCK WASHERS 128 3 FLAT WASHERS 193 3 DRIVER PINS 195 E SHIMS 335 336 SSF 337 IF REQUIRED SB ae S 2 5 DRIVE PLATES 12 SEC m 4 FRICTION DISCS 13 2 B gt Jw 12 SEPARATOR SPRINGS 17 ARMATURE PLATE 56 O RING 104 SPRINGS 36 FORCE CONTROL INDUSTRIES INC MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com 5 Remove the cover from the Electric Box 405 an with a similar Test Set Up as shown in Figure 5 1 apply 120 VAC to the 2 AC In terminals on the Terminal Strip J1 This will allow the brake stack to drop down 6 Place the Thrust Plate 5 on the Brake Stack 7 Install the 3 Flat Washers 193 3 Lockwashers 128 and 3 Hex Nuts 165 back on the Driver Pins 195 Torque to 7 Ft Lbs IMPORTANT Make sure that the spline teeth in the Friction Discs 13 are all aligned with each other and the Friction Discs 13 are also cen tered in the stack 8 Disconnect the 120 VAC from the brake coil and replace the cover on the Electrical Box 405 9 Lubric
19. e Parts weighing more than 150 Lbs will be shipped Motor Freight Air freight and other transportation services are available but only if specified on your order FORCE CONTROL INDUSTRIES INC MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com Force Control Industries Inc For Service Parts Call conor 513 868 0900 Magna Shear MOTOR BRAKE Model No MSB 2 4 H 012 S A 1 C 1 SerialNo Use Mobil ATF 210 Type F U S PATENTS 5 172 789 5 242 039 5 389 049 5 533 425 5 603 395 OTHER U S amp FOREIGN PATENTS PENDING iso 9001 CERTIFIED 8 5 PLATE AND MODEL NUMBER The Name Plate shown is located on the Adapter Fan Shroud The Example shown is a size MSB2 4 1 2 Pilot Dia Horizontal Mounting 12 Lb Ft Torque No Manual Release 5 8 Collet Bore Dia 115 VAC Connector located on front side of Conduit Box and with an Engineering Revision of 1 Size 1 EB MSB2 Pilot Diameter FAK 2 EB 4 500 Mounting Position 3 EB Horizontal EB Brake Up D Brake Down Torque 4 5 6 FII 6 Lb Ft O ggd 12 Lb Ft Manual Release 7 Not Available FORCE CONTROL INDUSTRIES INC INDUSTRIAL Collet Bore 8 Revisi evision 11 Motor Shaft Dia By Force LAU ces EE Voltage 9 EN 115 VAC Connector Location 10 SIDE VIEW
20. e factory rebuild will be 50 the cost of a new unit if the housings are reusable If Housings need to be replaced there will be an additional cost Contact Force Control Industries Inc for authorization and shipping instruction before returning a drive unit for this service Force Control cannot be responsible for units returned to the factory without prior notice and authorization Care must be given to the packing of returned drives Always protect mounting feet by attaching to a skid 16 INDUSTRIAL Shipment damaged drives always delays repairs It is usually impossible to recover damage costs from the carrier When possible describe the problem experi enced on your shipping papers Return to Force Control Industries Inc 3660 Dixie Highway Fairfield Ohio 45014 Phone 513 868 0900 Fax 513 868 2105 E Mail info forcecontrol com 8 4 ORDERING REPLACEMENT PARTS When ordering replacement parts please specify all of the following information 1 Brake Model Number On the Name Plate 2 Brake Serial Number On the Name Plate 3 Part Reference Number From the parts list or exploded view drawing 4 Part Name From the parts list 5 Quantity From the parts list 6 Complete Shipping Information Failure to include information for items 1 through 6 will only delay your parts order Unless another method is specified for item 6 parts weighing less than 150 Lbs will be shipped United Parcel Servic
21. emove the 2 O Rings 104 and discard them 6 Take the 3 Hex Nuts 165 3 Lockwashers 128 and 3 Flat Washers 193 off the 3 Driver Pins 195 in an even manner to release the spring pressure safely 7 Lift the Thrust Plate 5 off the Brake Stack 8 The Brake Stack can now be removed from the 3 Driver Pins 195 See Figure 7 2 2 SCREWS 72 VLL IJ 2 LOCKWASHERS 129 O RING 104 MAIN HOUSING 8 Figure 7 2 Replacing the Brake Stack 12 INDUSTRIAL INPUT HOUSING 15 END HOUSING 9 9 Take the 12 Separator Springs 17 out of the Brake Stack If there are any shims in the stack leave them there to measure the Stack Height 10 Place the Brake Stack in an arbor press and mea sure the Stack Height to determine whether or not the Brake Stack needs to be replaced See Figure 7 1 If the Brake Stack needs replaced then use the fol lowing procedure 11 Measure the new stack with the same procedure as shown in Figure 7 1 to determine the amount of shims required The normal shim requirement is 020 Reassembly 1 Install Drive Plate 12 then 3 Separator Springs 17 over the 3 Driver Pins 195 2 Next place a Friction Disc 13 on the installed Drive Plate 12 3 Continue with this process until 5 Drive Plates 12 4 Friction Discs 13 and 12 Separator Springs 17 are installed You will en
22. en removed or altered Transportation charges for shipping any product or part there of that the buyer claims is covered by this limited warranty shall be paid by the buyer If Force Control determines that any product or part thereof should be repaired or replaced under the terms of this limited warranty it will pay for shipping the repaired or replaced product or part thereof back to the buyer EXCEPT FOR THE EXPRESS WARRANTY SET OUTABOVE FORCE CONTROL DOES NOT GRANTANY WARRANTIES EITHER EXPRESSED OR IMPLIED INCLUDING IMPLIED WARRANTIES OF MERCHANTABIL ITY OR FITNESS FOR USE The warranty obligation set forth above is in lieu of all oblig ations or liabilities of Force Control for any damages Force Control specifically shall not be liable for any costs incurred by the buyer in disconnecting or re installing any product or part thereof repaired or replace under the limited warranty set out above FORCE CONTROL EXPRESSLY EXCLUDES ALL LIABILITY FOR ANY INDIRECT OR CONSE QUENTIAL DAMAGES THE BUYER MAY SUSTAIN IN CONNECTION WITH THE DELIVERY USE OR PERFORMANCE OF FORCE CONTROL PRODUCTS Under no circumstances shall any liability for which Force Control is held responsible exceed the selling price to the buyer of the Force Control products that are proven to be defective This limited warranty may be modified only in writing signed by a duly authorized officer of the company This limited warranty applies exclusively to Force Control products war rant
23. eration electrical power is not required to energize the coil since the MagnaShear Motor Brake has a normally spring loaded brake when the coil is de energized INDUSTRIAL Disconnect the load to the motor Install a torque wrench on the motor shaft and apply torque The brake should slip at approximately the static torque of the brake Refer to page 3 for torque ratings 5 2 CHECKING THE BRAKE COIL OPERATION 1 Remove the cover from the Conduit Box 405 2 Disconnect the black and white power leads from the Brad Harrison Cable Connector 416 to AC In on Terminal Strip J1 located on the Circuit Board 400 3 Connect the test power leads to AC In on J1 Turn the On Off Switch to ON The Power Indicator Light should come on 4 Manually turn the Drive Motor Output Shaft If the shaft turns then the Brake Coil and Control Circuit is operating properly If it is not able to be turned then the Brake Coil or Circuit Board is not functioning properly See Section 6 Trouble Shooting CAUTION Physical damage or mal function in the motor or brake stack can also prohibit shaft rotation FORCE CONTROL INDUSTRIES INC MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com Section 6 TROUBLESHOOTING 6 1 TROUBLESHOOTING CHART PROBLEM POSSIBLE CAUSE REMEDY 1 Brake fails to engage properly Electrical control circuit Check control cir
24. he Circuit Board 400 Also remove the compression nut from the Electrical Fitting 415 and pry the rubber seal out of the fitting and off of the coil leads See Figure 7 3 12 Remove Screw 153 and Lockwasher 275 13 Lift the Holding Coil 284 out of the end housing 14 Remove and discard O Ring 103 B Reassembly 1 Lubricate a new O Ring 103 with vaseline or equivalent and install it into the End Housing 9 counterbore 2 Place a new Holding Coil 284 into the End Housing 9 pushing the coil leads up through the Electrical Fitting 415 3 Attach the Coil 284 with 1 Lockwasher 275 and 1 Screw 153 Make sur that the coil wires are at the top of the brake Torque to 60 Ft Lbs 4 Place the rubber seal on the coil leads and pull the wires through taking up all the slack in the wires Seat the rubber seal into the threaded part of the Electrical Fitting 415 Tighten down the compres sion nut See Figure 7 3 5 Attach the coil leads to the Terminal Strip J1 on the Circuit Board 400 and replace the cover on the Electrical Box 405 6 Set the End Housing 9 so the Coil 284 is facing upright According to the sketch made at disassem bly place the correct number of Springs 36 into the End Housing 7 Set the Armature Plate 56 and Armature Ring 58 over the 3 Driver Pins 195 and in position on the springs 14 INDUSTRIAL Continue the Reassembly with the sa
25. he Electric Box 405 2 Disconnect all the wires from the 2 Terminal Strips J1 and J2 on the Circuit Board 400 3 Remove the 3 Screws 428 and 3 Nylon Washers 431 4 Take the old Circuit Board 400 off and replace it with a new one 5 Re attach with 3 Screws 428 and 3 Nylon Washers 431 Re connect the wires to J1 and J2 Terminal Strips 6 Replace the electric box cover POWER INDICATOR LIGHT 410 CIRCUIT BOARD 400 ELECTRICAL BOX 405 CHASSIS GROUND SCREW 426 5 PIN BRAD HARRISON CONNECTOR 416 RED amp ORANGE WIRES NOT USED 3 SCREWS 428 3 NYLON WASH 431 13 MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com 7 7 REPLACING HOLDING COIL 284 See Figures 7 3 8 2 and 8 3 A Disassembly See 7 5 REPLACING THE BRAKE STACK and repeat Steps 1 thru 8 to remove the brake from the motor and to disassemble the brake down to the brake stack 9 Pull the Armature Plate 56 and Armature Ring 58 up off the 3 Driver Pins 195 NOTE If for some reason you want to replace the 3 Bushings 116 in your existing Armature Plate 56 see 7 8 REPLACING ARMATURE PLATE BUSHINGS 10 Remove the 6 or 8 Springs 36 from the brake NOTE A free hand sketch of the spring loca tions may help you at reassembly 11 Dis connect the coil leads from J1 terminal strip located on t
26. ies for motors and gear reducers and other component parts may be provided by their respective manufactures Any legal action for breach of any Force Control warranty must be commenced within one year of the date on which the breach is or should have been discovered A Return Goods Authorization RGA number must be obtained from the factory and clear ly marked on the outside of the package before any equipment will be accepted for war ranty work Force Control will pay the shipping costs of returning the owner parts that are covered by warranty Force Control believes that the information in this document is accurate The document has been carefully reviewed for technical accuracy In the event that technical or typo graphical errors exist Force Control reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition The reader should consult Force Control if errors are suspected In no event shall Force Control be liable for any damages arising out of or related to this document or the information contained in it FORCE CONTROL INDUSTRIES INC MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 1 95 72 60 ventas industrialmagza com 1 1 1 2 1 3 TABLE OF CONTENTS Section 1 DESCRIPTION and OPERATION UNIT 22 iiti iiie THE OIL SHEAR PRINCIPLE osi isis oiii OPERATION e Section 2 SP
27. imum oil temperature and 1800 RPM motor Duty is percentage of time brake is released Coil is Energized 2 FORCE CONTROL INDUSTRIES INC 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 1957260 ventas industrialmagza com 2 3 MSB2 MagnaShear ABM Specifications Assembled Brake Motor 7 Brake Available Torques MotorRPM y wc Sie Lb Ft 1 4 1800 56 56 MSB2 6 8 and 12 MSB2 6 8 and 12 MSB2 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 6 8 and 12 DT90L4 6 8 and 12 2 4 MSB2 MagnaShear Motor Brake Dimensions BRAKE COIL CONDUIT ATMOSPHERIC BRAD HARRISON 5 PIN FAH BOX amp CIRCUIT BOARD ELECTRICAL CONNECTOR BREATHER 4 502 4 500 MOUNTING REGISTER E NI 19 MNTG REGISTER 4 3 8 16 MNTG SCREWS SIGHT GAUGE DRAIN 90 APART ON A 5 875 B C 62 8 02 Std Motor Shaft Tolerances Std Motor Register Tolerances 625 Dia amp 875 Dia 4 500 Dia 0000 0005 000 003 2 00 875 1 37 FORCE CONTROL INDUSTRIES INC 55 53 63 23 31 81 83 54 1
28. l into a suitable container Save or discard as condi tion warrants Replace the pipe cap when finished 2 Remove the Pipe Plug 62 and fill with fresh oil to the center of the Sight Gauge 46 Replace the fill pipe plug when finished CAUTION Do not overfill the brake unit Excess oil will cause the brake to over heat 4 4 TYPE OF OIL Use only Mobil Automatic Transmission Fluid ATF 210 Type F or Mobil Multi Purpose Automatic Transmission Fluid for most drives Other fluids may be specified for special applications Always use the type of oil specified on the Name Plate Vertical Brake Up PIPE PLUG 62 PIPE PLUG 62 REMOVE TO FILL REMOVE TO FILL SIGHT PIPE CAP 67 REMOVE TO DRAIN MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com Section 5 OPERATIONAL CHECKS Make these Operational Checks with the MagnaShear Motor Brake shut down and completely assembled with the drive motor attached Provisions for manual operation checks must be made if the drive unit has been removed for service and repair 120 VAC 60 Hz electrical service is required to ener gize the coils See Figure 5 1 below for the Test Set Up 5 AMP ON OFF FUSE SWITCH INDICATOR LIGHT WHITE RED L1 120 VAC 1 60 Hz 2 COIL CIRCUIT BOARD Figure 5 1 Test Set Up Electrical Schematic 9 1 CHECKING THE BRAKE OPERATION To check the Brake Op
29. lmagza com 1 3 OPERATION CONDUIT BOX CIRCUIT BOARD The cross section in Figure 1 2 shows the MSB2 SPLINED HUB WITH MagnaShear Motor Brake in the Stopped posi INTEGRAL OIL PUMP tion with the brake stack engaged The MSB2 MagnaShear Motor Brake will default to this position when all power is lost f X 44 To run the Drive Motor the Brake Coil is ener grt 1 5 gized pulling the Armature Plate Assembly away amp WEAR N y iis a p from the Brake Stack which allows the splined eve 5 BRAKE COIL hub and drive motor to rotate independently from P 777 22 5 Eo a the motor brake TAPER To stop the Drive Motor the Brake Coil is d und o stop the Drive Motor the Brake Coil is de rx energized This allows the brake springs to push 4 1 2 DIA AK SES ALUMINUM the Armature Plate Assembly against the Brake MOTOR REGISTER ws zm Stack clamping it and stopping the splined hub 7 Lea COOLING FINS and drive motor CAST LIGHTWEIGHT BRAKE STACK THRUST PLATE SPRING LOADED Figure 1 2 MagnaShear MSB2 Motor Brake Cross Section Section 2 SPECIFICATIONS 2 1 MSB2 MagnaShear Motor Brake Specifications AVAILABLE MAX INRUSH COIL STATIC DYNAMIC HOLDING MAX KE per SIZE DIA BORE SPRINGS ENGMT 4 Sec CURRENT 20 Inches Inches Lb Ft Lb Ft Ft Lbs Amps Ohms NOTES Above ratings are based on 96 C max
30. ly a clean dry and lint free rag to clean them Solvent will damage the friction material used on them Always keep the Friction Discs 13 and Drive Plates 12 in the same order as they were removed After cleaning inspect parts for cracks distortion scor ing nicks burrs or any other damage that would affect CLAMP STACK IN AN ARBOR PRESS SPACER Figure 7 1 Measuring Stack Height FORCE CONTROL INDUSTRIES INC INDUSTRIAL the operation of the brake Pay particular attention to the Wear Sleeve 32 locat ed on the Fan and Hub 900 and the Oil Seal 31 located in the Input Housing 15 Check for nicks scratches or any damage that would cause leakage 7 3 REPAIR OR REPLACEMENT A fine stone or crocus cloth may be used to remove minor surface defects from parts if the operation or seal ing action of the part is not affected The use of coarser abrasives or other machining methods should not be attempted and damaged parts should be replaced Replacement is recommended for the following parts when needed 1 Replace all Gaskets O Rings Oil Seals and Wear Sleeves removed at disassembly NOTE The Wear Sleeve 32 located on the Fan and Hub 900 cannot be replaced as an individual part If it is damaged and needs replaced the whole Fan and Hub 900 will have to be replaced 2 Replace Brake Stack as a complete Assembly 3 The Circuit Board 400 and Holding Coil 284 are also common re
31. me procedure described in 7 5 REPLACING THE BRAKE STACK B Reassembly Steps 1 thru 15 7 8 REPLACING ARMATURE PLATE BUSHINGS A new Armature Plate 56 will come with the 3 Bronze Bushings 116 already pre reamed and installed If you want to keep your existing Armature Plate 56 and only replace the 3 Bronze Bushings 116 Use the following procedure 1 Remove the 4 Screws 152 and take the Armature Ring 58 off the Armature Plate 56 2 Remove the 3 existing bushings with an arbor press Make sure that the holes in the Armature Plate 56 are clean and free of any nicks burrs or foreign material 3 Carefully press the 3 new Bronze Bushings 116 into the Armature Plate 56 with an arbor press 4 Re attach the Armature Ring 58 to the Armature Plate 56 with the 4 Screws 152 Torque to 7 Ft Lbs 7 9 REPLACING OIL SEAL 31 1 First drain all the oil from the unit into a suitable con tainer See Section 4 LUBRICATION for location of drain plugs Save or discard as condition warrants 2 Also disconnect the 5 Pin Brad Harrison Cable from the Electric Box 405 Remove the 2 Allen Nuts 136 and 2 Lockwashers 127 from the End Housing 9 and pull the Brake Assembly straight back out of the Fan Housing 7 CAUTION Be very careful not to damage the lip of the Oil Seal 31 when removing the Brake Assembly 4 Remove the 2 Screws 72 and 2 Lockwashers
32. ments 120VAC Type 10 AC High Inrush Current Motor Starter 5 amp BRAKE COIL BRAD HARRISON EINE Bump the Drive Motor to check for correct rotation If the rotation is incorrect change two of the phase wires and recheck rotation Verify that the Brake Coil Indicator Light on the Conduit Box is ON while the drive 2 Red 4 Orange Not sed motor Is running 3 Green Ground Next complete a cycle to insure that there are no inter ference problems within the system Figure 3 4 Electrical Connector Set up Position Switches as required 6 FORCE CONTROL INDUSTRIES INC 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com INDUSTRIAL Section 4 LUBRICATION 4 1 CHECKING THE OIL LEVEL When the brake is installed and weekly thereafter or until experience dictates otherwise check the oil level Always check the oil level with the brake at room tem perature and while it is not running The MSB2 MagnaShear Motor Brake has an Oil Sight Gauge 46 to visually check the fluid level See Figure 4 1 below for the location of this sight gauge It is located on the side of the End Housing 9 for hor izontal brakes and on the side of the Main Housing 8 for vertical brakes The oil level is to be at the center of this Sight Gauge 46 for all models with the drive motor turned off 4 2 OPERATING TEMPERATURES A Ambient Temperature The standar
33. ool align the teeth as best as you can with each other Carefully insert the splined end of the Hub and Fan Sub Assembly 900 into the brake stack spline as far as it will go This will align the teeth perfectly CAUTION Be very careful not to damage the lip of the Oil Seal 31 when inserting the hub Turn the 120 VAC off and then pull the Hub and Fan 900 back out of the brake very carefully Replace the cover on the electric box 3 4 MOUNTING THE BRAKE TO THE MOTOR See Figures 3 2 and 8 1 First check the motor shaft pilot diameter and mounting FORCE CONTROL INDUSTRIES INC INDUSTRIAL STRAIGHTEDGE TAPED TO FAN SHROUD 7 2 NS ALIGN NOTCH ON HUB 2 WITH THIS SURFACE OF THE SCREW 494 TORQUE TO 25 Ft Lbs FAN SHROUD 7 face for any nicks scratches or burrs Clean up and de burr if necessary 1 MEX 55 53 63 23 31 Apply a little Blue Loctite 242 to the 2 Studs 155 and screw them into the drive motor leaving 6 1 4 exposed from the motor face The 2 holes are indicated with a grey tone in Figure 3 2 above Let the Loctite set for approx 5 minutes before pro ceeding any further Slide the Fan Shroud 7 over the 2 extended Studs 155 and attach to the motor face with 2 Lockwashers 127 and 2 Screws 149 Torque to 25 Ft Lbs Remove the Screw 94 and Washer 81 from the Hub 2 Coat the threads with Blue Loctite 242or equiv
34. pe Plug 1 8 NPT 8 Main Housing 6 Screw 5 16 18 4 3 4 Lg 9 End Housing 12 Drive Plate 13 Friction Disc Bronze Bushing 15 Input Housing Roll Pin 17 Separator Springs 8 Ft Los Torque 31 Oil Seal 12 Ft Los Torque 36 Spring Lockwasher 1 4 8 Ft Los Torque Lockwasher 5 16 12 Ft Lbs Torque Low Hd Cap Screw 1 4 20 x 1 2 45 Air Breather Low Hd Cap Screw 1 2 13 x 1 1 4 46 Sight Gauge Hex Nut 1 4 20 52 hreaded Insert But Hd Screw 10 24 x 1 4 5 Flat Washer 55 Driver Pin 56 Lockwasher 1 2 58 Armature Ring Holding Coil 61 90 Street Elbow 3 8 NPT Shim 005 Blue 62 Pipe Plug 3 8 NPT Shim 010 Brown 63 90 Fitting Shim 020 Yellow NOTES Indicates parts in Overhaul Kit AR As Required 20 FORCE CONTROL INDUSTRIES INC 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 1 95 72 60 ventas industrialmagza com MSB2 MagnaShear Motor Brake Sub Assembly ELECTRIC BOX amp CIRCUIT BOARD SUB ASSEMBLY 5 See Figure 8 3 19 A wo K TORQUE REQUIREMENTS SCREW 72 14 Ft Lbs SCREW 152 7 Ft Lbs SCREW 153 60 Ft Lbs Figure 8 2 Repair Parts MSB2 MagnaShear Motor Brake FORCE CONTROL INDUSTRIES INC 21 55 53 63 23 31 MTY 81 83 54 10 18 DIST
35. placement parts 7 4 MEASURING STACK HEIGHT The Stack Height must be measured to deter mine whether or not the Brake Stack needs to be replaced If it measures under the Minimum Worn Stack Height then the Brake Stack needs to be replaced Also if you are installing a new brake stack it needs to be mea sured to determine the amount of shims required See Figure 7 1 CALIPERS MINIMUM WORN STACK HEIGHT W 0 Shims A00 NEW STACK HEIGHT W 0 Shims 493 45 7 ADD NECESSARY SHIMS TO BRING IT UP TO THE REQUIRED NEW STACK HEIGHT OF 513 477 11 MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industrialmagza com 7 5 REPLACING BRAKE STACK See Figures 7 2 8 2 and 8 3 A Disassembly 1 First drain all the oil from the unit into a suitable con tainer See Section 4 LUBRICATION for location of drain plugs Save or discard as condition warrants 2 Also disconnect the 5 Pin Brad Harrison Cable from the Electric Box 405 3 Remove the 2 Allen Nuts 136 and 2 Lockwashers 127 from the End Housing 9 and pull the Brake Assembly straight back out of the Fan Housing 7 CAUTION Be very careful not to damage the lip of the Oil Seal 31 when removing the Brake Assembly 4 Remove the 2 Screws 72 and 2 Lockwashers 129 from the Input Housing 15 and lift it and the Main Housing 8 off the End Housing 9 See Figure 7 2 5 R
36. plugs Sight Gauge 46 and Air Breather 45 are installed cor rectly Fill with oil as described in Section 4 LUBRICATION 7 10 REPLACING HUB AND FAN SUB ASSEMBLY 900 1 First drain all the oil from the unit into a suitable con tainer See Section 4 LUBRICATION for location of drain plugs Save or discard as condition warrants Also disconnect the 5 Pin Brad Harrison Cable from the Electric Box 405 Remove the 2 Allen Nuts 136 and 2 Lockwashers 127 from the End Housing 9 and pull the Brake Assembly straight back out of the Fan Housing 7 CAUTION Be very careful not to damage the lip of the Oil Seal 31 when removing the Brake Assembly Insert a large screw driver into the Hub 2 pump opening to keep the hub from turning Remove the Screw 94 and Brass Washer 81 with a socket head wrench from the Hub 2 The screw size is 3 8 16 Discard the Washer 81 Thread a 3 8 16 x 1 2 Lg Set Screw into the Collet 110 as shown in Figure 7 4 Make sure this set screw extends approx 1 8 beyond the end of the Collet 110 FORCE CONTROL INDUSTRIES INC INDUSTRIAL MEX 55 53 63 23 31 FAN SHROUD 7 DRIVE MOTOR 1 129 2 625 SHAFT LENGTH 3 8 16 X 1 2 LG SET SCREW HUB AND FAN ASSEMBLY 900 7 j 1 2 13 x 2 LG HEX HD BOLT COLLET 110 Figure 7 4 Removing Hub 2 and Collet 110 6 Thread a 1 27 13 Hex
37. r for long durations must be reviewed and approved by our engineering department MagnaShear MSB2 Motor Brake Ss NO SN 4 1 2 Dia Mounting Flange Figure 1 1 MSB2 MagnaShear Motor Brakes FORCE CONTROL INDUSTRIES INC INDUSTRIAL 1 2 The OIL SHEAR PRINCIPLE Conventional clutches and brakes depend on the friction between solid surfaces operating in air to transmit torque Friction does the job but produces a great amount of heat and wear The MSB2 MagnaShear Motor Brake is an Shear Brake with the friction sur faces operating in a constantly replenished film of oil The oil molecules tend to cling to each other and to the friction surfaces As moving and stationary elements are brought together a thin but positive film of oil is main tained between them which is controlled by the clamp ing pressure and carefully designed grooves in the fric tion discs Torque is transmitted from one element to the other through the viscous shear of the oil film As long as there is relative motion between the elements they are protected by the oil thus greatly reducing wear The replenished oil film also effectively transmits heat away from the friction elements MagnaShear MSB2 Motor Brake furnished as an Assembled Brake Motor 1 4 Horse Power 56 Motor Frame up to 1 Horse Power 145T or 184U Motor Frame Sizes MEX 55 53 63 23 31 MTY 81 83 54 10 18 DIST AUTORIZADO 442 195 72 60 ventas industria
38. ssembly over the 2 extended MOTOR STARTER r AUXILIARY CONTROLS Studs 155 as far as it will go Be very careful not to damage the Oil Seal 31 NOTE You will probably have to rotate the motor shaft by hand to align the spline on the Hub 2 with the spline teeth on the brake stack IMPORTANT Be sure that all of the Friction Disc splines are engaged on the Hub spline before installing the Allen Nuts 136 Also look inside the Fan Shroud to be sure that the Brake is fully seated in the Fan Shroud 11 Attach with 2 Lockwashers 127 and 2 Allen Nuts 136 Torque to 25 Ft Lbs 12 Install the Air Breather 45 and fill with oil as described in Section 4 Lubrication 3 5 WIRING SPECIFICATIONS See Figures 3 3 and 3 4 BRAKE CIRCUIT EUIS 9 AMP FUSE FOWARD CONTACTOR MF1 SEE NOTE 1 BRAKE COIL CUSTOMER FURNISHED 5 PIN BRAD HARRISON CONNECTOR BRAKE COIL FUNCTION ENERGIZED On Off RELEASE ON BRAKING OFF 3 6 START UP Verify that the Brake Coil is connected correctly Check to see if the Drive Motor is wired correctly fuses are in place and the motor disconnect is turned on Set up preliminary settings on positioning switches to insure the brake will stop INTERNAL SURGE PROTECTION REVERSE CONTACTOR MR1 INDICATOR LIGHT Figure 3 3 Electrical Schematic NOTE 1 1 Circuit Breaker Require
39. ther 45 installed to prevent damage to the brake The breather is taped to the motor shaft for ship ment Always check the oil level though to see if the oil level is in the center of the Sight Gauge 46 See Section 4 LUBRICATION B MagnaShear Motor Brake The standard MSB2 MagnaShear Motor Brake has been partially assembled at the factory for ease of ship ment and installation The motor brake is completely assembled except for the Fan Shroud 7 Fan and Hub Sub Assembly 900 Collet 110 and the Motor Mounting Screws 149 and Studs 155 INDUSTRIAL During Installation refer to Section 8 Repair Parts for a visual reference to all parts Figure 8 1 Fan Shroud Fan Hub and Collet Figure 8 2 MSB2 MagnaShear Brake Assembly Figure 8 3 Electric Box and Circuit Board Figure 8 4 Vertical Installation 3 2 VERIFYING MOTOR SPECIFICATIONS The Motor Manufacturer s Specifications must be verified first to ensure the Motor Brake Oil Seal Reliability 1 Motor Shaft Runout 2 Mounting Face Runout and 3 Motor Shaft to Pilot Diameter Eccentricity need to be checked with a Dial Indicator as shown in Figure 3 1 MOTOR SHAFT TO PILOT DIAMETER ECCENTRICITY FACE amp SHAFT RUNOUT SHAFT RUNOUT X DIAL INDICATOR MNTG FACE 4 5 DIA PILOT MNTG FACE me SHAFT MOUNTING FACE RUNDUT PILOT Figure 3 1 Verifying Motor Specifications MAXIMUM ALLOWABLE T I R Inches As Per NE

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