Hubbell MMD21 User's Manual
Contents
1. a 5 Ru j 1 2 3 4 MCOLLARI SLIP RINGS th i i i SUP RING en asc iS doe COVER ed E d n SLIP RING ENCLOSURE E 600 VOLT AC 250 VOLT DC WATERTIGHT DUST TIGHT DO NOT EXCEED AMPERAGE RATING OF CABLE OR SLIP RING NUMBER OF CIRCUITS MAY VARY FROM TWO MINIMUM TO 36 MAXIMUM FOUR CIRCUITS SHOWN NOTE Wire size wire connectors connection sequence and connection methods must comply with National Electrical code and Local Electrical ordinances If in doubt contact a local electrical contractor or electrical inspector COLOR SEQUENCE FOR TYPE SO CABLE THREE CONDUCTOR CABLE 1 BLACK 2 WHITE 3 GREEN ground FOUR THRU TWELVE CONDUCTOR CABLE 1 BLACK 2 WHITE 3 RED 4 GREEN ground 5 ORANGE 6 BLUE 7 WHITE W BLACK TRACER 8 RED W BLACK TRACER 9 GREEN W BLACK TRACER 10 ORANGE W BLACK TRACER 11 BLUE W BLACK TRACER 112 BLACK W WHITE TRACER dk dk dk dk dk HH dk dk MMD21 DIRECT DRIVE ELECTRIC CABLE REEL REPLACEMENT PARTS LIST NOTE Applicable mounting hardware included with each kit ITEM KIT NO DESCRIPTION QTY ITEM KIT NO DESCRIPTION QTY 1 012393 Frame Assembly 1 20 P06 03 ESNA Lock Nut 50 13 Z P ar 2 012406 Discs Set of two 1 21 021762 Hub Lock Pins ar 3 012397 Main Shaft Assembly 1 22 012457 Button Plug 1 Includes drive pin and retaining rings 4 012402 Bearina Kit 22. B 1 23 012285 Collector Assembly 2 Pole 35 Amp 1 earing Kit 2 Bore 23 012286 Collector Assembly 3 Pole 35 Amp 1 Includes housing and gasket 23 012287 Collector Assembly 4 Pole 35 Amp 1 5 012401 Bearing Kit 1 75 Bore 1 23 012288 Collector Assembly 6 Pole 35 Amp 1 Includes housing and gasket 23 012289 Collector Assembly 8 Pole 35 Amp 1 23 012290 Collector Assembly 10 Pole 35 Amp 1 124 D K 1 Ve Susie 23 012291 Collector Assembly 12 Pole 35Amp 1 7 012213 Stub Shaft Std Rotation 1001 1 23 012292 Collector Assembly 14 Pole 35 Amp 1 7 01221301 Stub Shaft Rev Rotation 1001 1 23 012293 Collector Assembly 16 Pole 35 Amp 1 7 012214 Stub Shaft Std Rotation 1002 1 23 012294 Collector Assembly 20 Pole 35 Amp 1 7 01221401 Stub Shaft Rev Rotation 1002 1 23 012295 Collector Assembly 24 Pole 35 Amp 1 7 012371 Stub Shaft Std Rotation 1003 1 23 012296 Collector Assembly 30 Pole 35 Amp 1 7 01237101 Stub Shaft Rev Rotation 1003 1 23 012297 Collector Assembly 36 Pole 35 Amp 1 7 014619 Stub Shaft Std Rotation 1004 1 23 012298 Collector Assembly 2 Pole 75 Amp 1 7 01461901 Stub Shaft Rev Rotation 1004 1 23 012299 Collector Assembly 3 Pole 75 Amp 1 8 012416 Wrapper Kit 5 Wide 8 to 14 Dia 1 23 012300 Collector Assembly 4 Pole 75 Amp 1 Includes 4 wrapper sections 23 012376 e ector Assembly 6 Pole 75 Amp 1 u RE V ny 23 012377 ollector Assembly 8 Pole 75 Amp 1 8 01241 eee Pee ure 1 23 037194 Coll
3. spanner wrench into holes in spring hub Fig 2 Rotate wrench counterclockwise for standard rotation Number of 360 turns should match last digit in model number on serial plate f model number includes an R reel is reverse rotation and wrench must be rotated clockwise See EXPLANATION on parts list page SPRING COUNTER HOUSING CLOCKWISE FOR STANDARD ATION N SPANNER WRENCH SPRING Figure 1 HUB Figure 2 CAUTION Do not exceed number of turns indicated on serial plate Over tensioning can cause a broken spring sheared shaft or other damage NOTE If reel is equipped with ratcheted adjustment wrench follow instructions on separate sheet NOTE On reels containing more than one spring the hubs are connected at the factory Therefore by tightening the outer spring the inside spring s will be tightened 7 Remove collector cover and connect individual supply conductors to collector terminals See ELECTRICAL CONNECTIONS diagram on parts page MAINTENANCE Periodically A Use compressed air to clean collector assembly and inside of collector housing Inspect collector assembly for brush wear and pitted slip rings B Inspect cable for wear and check mounting bolts and dk ps a BROKEN SPRING _ other hardware for tightness SPRING OK INDICATORS C Check for broken springs E Pa by pulling about 2 3 cable off reel and observing Broken OUT wi
4. Cover Kit 20 5 long 1 12 012427 Pawl Kit 25 012414 Collector Cover Kit 28 5 long 1 Includes 2 pawls and springs 26 012458 Seal Ring only 1 13 017191 Spanner Wrench 1 27 012096 Hoop Kit 1 14 032804 Ratchet Wrench Kit 1 28 012091 Spool Lock Assembly 1 Includes mounting bolts 29 015660 Entrance Assembly Kit 1 50 NPT 1 15 017055 Extension Bolts ar 4 bolts per kit less hardware Includes Pipe Nipple Condulet and Dome Cover 16 016182 Carriage Bolt 50 13 x 1 5 ar NOTE 17 021291 Lockwasher 56 med Z P ar ae consue apn for optional accessories roller guides ratchet lock limit 18 100959 Hex Nut 50 13 Z P ar a see 19 101211 Flat Washer 50 ar MODEL NUMBER EXPLANATION Aenean MILL DUTY FRAME SPRING NO OF NO OF AMPACITY CORE PRETENSION REEL SERIES SERIES SPRINGS POLES DIAMETER TURNS CODE AMPS NES MMD 21 100 2R 12 3 10 1 7 7 12 125 INDICATES REVERSE ROTATION 20 200 NO LETTER INDICATES STANDARD ROTATION CABLE REMOVAL Use the following procedure to remove worn or damaged cable from reel prior to installation of new cable CAUTION Failure to relieve all spring tension prior to removing cable could result in damage to equipment or personal injury Follow instructions carefully 1 Move machine serviced by reel to a position closest to reel Springs will still be under pre tension at this point Turn off all electric power Lock spool to prevent turning us
5. INSTALLATION and MAINTENANCE INSTRUCTIONS MMD21 DIRECT DRIVE ELECTRIC CABLE REELS All units are provided with right hand rotation unless otherwise specified This means that cable is pulled off spool top left or bottom right spool rotates clockwise to wind cable when viewing spring end of reel See diagram on parts page Clock type springs provide power for automatic cable take up Spring must be pretensioned at time of installation to insure that tension is applied to cable at all times A tension adjustment spanner wrench is provided with each reel WARNING Some reels with large or multiple springs are equipped with a ratcheted adjustment wrench Follow separate instruc tions for its use Failure to use ratcheted wrench on reels so equipped could result in serious personal injury A WARNING Do not attempt to relieve spring tension using span ner wrench Doing so may result in personal injury INSTALLATION 1 Insure that machinery to be serviced by reel is at position closest to reel 2 Securely mount reel in desired position using 3 8 M10 bolts Be sure spool is aligned with cable run 3 Position optional cable guide if reel is so equipped See CABLE INSTALLATION DRAWING 4 Connect free end of cable to junction box on machine or adjust cable stop so that desired length of cable extends from reel 5 Remove cover plate on spring housing to expose shaft and spring hub See Figure 1 6 Insert
6. ector Assembly 2 Pole 125Amp 1 HD d 23 037294 Collector Assembly 3 Pole 125 Amp 1 9 012444 Cable Clamp Kit 38 74 Dia Cable 1 23 037295 Collector Assembly 4 Pole 125 Amp 1 U bolt with lockwashers and hex nuts 23 012304 Collector Assembly 2 Pole 200 Amp 1 9 012445 Cable Clamp Kit 75 1 11 Dia Cable 1 23 012381 Collector Assembly 3 Pole 200 Amp 1 9 012446 Cable Clamp Kit 1 12 1 50 Dia Cable 1 23 012382 Collector Assembly 4 Pole 200 Amp 1 10 012459 Cable Connector 38 50 Cable Dia 1 23 012383 Collector Assembly 6 Pole 200 Amp 1 10 012460 Cable Connector 50 62 Cable Dia 1 23 012384 Collector Assembly 8 Pole 200 Amp 1 10 012461 Cable Connector 62 75 Cable Dia 1 24 012440 Brush Kit 35 Amp ar 10 012462 Cable Connector 75 88 Cable Dia 1 Each kit includes 4 brushes and 4 fingers 10 012463 Cable Connector 88 1 00 Cable Dia 1 24 012441 Brush Kit 75 Amp ar 10 012464 Cable Connector 1 00 1 12 Cable Dia 1 24 012443 Brush Kit 125 Amp 200 Amp ar 10 012465 Cable Connector 1 12 1 25 Cable Dia 1 E 10 012466 Cable Connector 1 25 1 38 Cable Dia 1 25 012409 m E a 10 012467 Cable Connector 1 38 1 50 Cable Dia 1 25 012410 Collector Cover Kit pum long 1 11 017051 Spring Motor Kit Std Rot 100 ar 25 012411 Collector Cover Kit 13 long 1 Includes pawl pawl springs cover gaskets and snap ring 25 012412 Collector Cover Kit 15 5 long 1 11 017052 Spring Motor Kit Rev Rot 100 ar 25 012413 Collector
7. ing either a spool lock mechanism or by tying off Disconnect cable from machine junction box Grip spool by hand and carefully release spool lock or tie Slowly unwind remaining tension Again lock or tie spool to prevent rotation Remove cable from spool Loosen U bolt and water tight connector and disconnect conductors from slip ring Install new cable following instruction at right CABLE INSTALLATION Use the following procedure to replace cable or if reel was ordered without cable Refer to CABLE INSTALLATION REFERENCE DRAWING below akWN Feed one end of the cable through water tight connector on the main shaft inside the spool and into the slip ring side See drawing below NOTE This may require that jacket of cable be stripped to allow conductors to pass through shaft Connect individual conductors to appropriate rings on collector using crimp fitting or similar connection method Tighten water tight connector and U bolt provided on drum wrapper segment Do not over tighten Wind the cable onto the reel spool by hand rotating spool in direction it turns free of spring tension Connect free end of cable to machine junction box Pretension reel and complete installation as previously described COLLECTOR REPLACEMENT Turn off all power to reel Remove collector cover and gasket Disconnect electric leads to and from collector Remove drive stud bolt from bearing housing Remove button pl
8. s 8 Install replacement spring motor s pawls and pawl springs NOTE Pawl springs must be located between the pawls and the deepest section of the shaft grooves Make sure that pawls and pawl springs are inserted flush with ends of shaft and hub or they may rub against inspection cover SPRING OV ON NO SPOOL PAWL HUB SHAFT Spring not E shown SPRIN Install SHAFT SIDE VIEW GROOVE against flat 9 Tighten nuts and extension bolts securing spring housing s to reel frame 10 Connect free end of cable to junction box on machine or adjust cord stop so that desired length of cord extends from reel 11 Tension spring with spanner wrench Refer to INSTALLATION section 12 Replace inspection cover CONTINUED ON BACK PAGE muli Always specify SERIAL NUMBER amp MODEL NUMBER when ordering parts ILLUSTRATED PARTS LIST MMD21 DIRECT DRIVE ELECTRIC CABLE REELS TO DETERMINE ROTATION OF REEL STANDARD REVERSE ROTATION ROTATION Cable is payed out and retracted as shown when viewing reel from spring motor side CABLE LEADWIRES lt lt _ MOVING END LEADWIRE INPUT FIXED END CABLE CUSTOMER SUPPLIED R BRUSH TERMINAL LIP RIN CONNECTIONS m LEADWIRES ARE Coton WATER TIGHT NUMBER TAGGED E CABLE GRIP SLIP RING LEAD TO REEL MOVING CABLE _ MAINSHAFT CONNECTIONS
9. th 2 3 d Spring Indicators on sides of SPRING EN OS K spring canisters Fig 3 BROKEN Q f NOTE Bearings and springs Figure 3 are prelubricated and require no periodic maintenance SPRING REPLACEMENT WARNING Do not attempt to remove spring from its housing Clock type springs can be dangerous to handle Removal of spring from housing could result in personal injury The unique SAFETYCHANGE spring motor consists of a spring and hub sealed within a housing A replacement spring is supplied sealed in its housing and the old unit should be dis carded completely Turn off all electric power Disconnect cable from machine junction box Wind all cable onto reel to relieve all spring tension Remove inspection cover from face of spring housing Rotate spool clockwise and observe inner shaft Shaft should rotate clockwise and hub with spring attached should remain stationary NOTE Do not attempt to remove spring if resistance is met or hub tends to rotate with shaft Continue to rotate spool and strike end of shaft several sharp blows with a lead hammer or rubber mallet until shaft rotates freely and hub remains stationary Remove 4 nuts which secure spring motor s to frame Slide spring motor s off shaft and discard NOTE On multi spring reels be sure to remove and save dowel pins which connect one spring hub with another Also remove snap rings on shaft between spring housing
10. ug from hole in side of housing Insert long 1 8 Allen wrench through hole and loosen two set screws in collector locking collar Set screws are at 90 to one another NOTE Older reels may have lock screws which must be removed to reach set screws holding collector to shaft 1 Unspool new cable from shipping spool and lay out 6 Slide collector off shaft to eliminate twist 7 Install new collector by reversing above steps NOTE This step is not essential but will aid in winding operation of the reel and prolong cable life CABLE INSTALLATION REFERENCE DRAWING SPOOL ROTATION DIRECTION INSTALL CABLE TO WIND CABLE WHEN THIS DIRECTION VIEWED FROM SPRING SIDE TERMINATE THIS END TO 4 POSITION CABLE STANDARD ROTATION MACHINE JUNCTION BOX CABLE GUIDE SO THAT ROLLER PLATE i PAYOFF E FACES CABLE PAY pum ATTACH INDIVIDUAL BUTTON U BOLT OFF DIRECTION GUIDE CONDUCTORS TO PLUG COLLECTOR LEADS WATER TIGHT cx EOCATION AT THIS END LINE CONNECTOR ENTRANCE 2I e PRETENSION HUB COLLECTOR PAYOFF DIRECTION REMOVE SLIP RING ASSEMBLY SPRING MOTOR MAIN SHAFT HOOP GUIDE DIRECTION OPTIONAL GUIDE LOCATION Ca Hubbell Company Printed in USA GLEASON REEL CORP P O Box 26 600 South Clark St Mayville WI 53050 0026 Phone 920 387 4120 Fax 920 387 4189 Bulletin No 040259 a
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