Jet 321370K, Operating Instructions And Parts Manual

Page 1: ...h Belt Drive Bench Lathes Models BDB 919 929 JET 427 New Sanford Road LaVergne Tennessee 37086 Part No M 321378 Ph 800 274 6848 Edition 2 12 2020 www jettools com Copyright 2017 JET For machines with serial no after 1701178 This pdf document is bookmarked ...

Page 2: ... having a nominal rating less than 150 volts This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in Sketch A The tool has a grounding plug that looks like the plug illustrated in Sketch A A temporary adapter which looks like the adapter illustrated in Sketches B and C may be used to connect this plug to a 2 pole receptacle as shown in Sketch B if a pro...

Page 3: ...RCE TOOL It will do the job better and safer at the rate for which it was designed 12 USE RIGHT TOOL Don t force tool or attachment to do a job for which it was not designed 13 WEAR PROPER APPAREL Do not wear loose clothing gloves neckties rings bracelets or other jewelry which may get caught in moving parts Nonslip footwear is recommended Wear protective hair covering to contain long hair 14 ALWA...

Page 4: ...umber the heavier the cord Ampere Rating Volts Total length of cord in feet 120 V 25 ft 50 ft 100 ft 150 ft 240 V 50 ft 100 ft 200 ft 300 ft More than Not more than AWG 0 6 18 16 16 14 6 10 18 16 14 12 10 12 16 16 14 12 12 16 14 12 Not recommended Only the applicable parts of the Table need to be included For instance a 120 volt product need not include the 240 volt heading Table 1 Minimum Gage fo...

Page 5: ...0 3 Drill chuck optional 17 10 4 Morse taper arbor optional 17 10 5 Live center optional 17 10 6 Steady rest 18 10 7 Setting the steady rest 18 10 8 Follow rest 18 10 9 Stand optional 18 10 10 Four way tool post 19 10 11 Change Gears 19 11 0 Adjustment replacement 19 11 1 Adjustment of main spindle bearings 19 11 2 Adjustment of cross and top slide 19 11 3 Adjustment of compound feed screw and flo...

Page 6: ...List 44 13 14 1 Follow Rest Exploded View 45 13 14 2 Follow Rest Parts List 45 13 15 1 BD 919 Bed Assembly Exploded View 46 13 15 2 BDB 919 Bed Assembly Parts List 47 13 16 1 BDB 929 Bed Assembly Exploded View 48 13 16 2 BDB 929 Bed Assembly Parts List 49 13 17 1 Accessories Exploded View 50 13 17 2 Accessories Parts List 50 13 18 1 BDB 919 Stand 321375 Optional Accessory Exploded View 51 13 18 2 ...

Page 7: ...se contact your local supplier or JET JET can also be reached at our web site www jettools com Retain this manual for future reference If the machine transfers ownership the manual should accompany it Read and understand the entire contents of this manual before attempting assembly or operation Failure to comply may cause serious injury Register your product using the mail in card provided or regi...

Page 8: ...ash guard Steel Dimensions Bed width 4 1 2 in Overall dimensions LxWxH 41 x 22 x 20 in 51 x 22 x 20 in Shipping dimensions LxWxH 41 x 22 x 22 in 51 x 22 x 22 in Weights Net weight approx 250 lbs 287 lbs Shipping weight approx 293 lbs 344 lbs 1 subject to local and national electrical codes 2 The specified values are emission levels and are not necessarily to be seen as safe operating levels As wor...

Page 9: ...pre mounted 1 52T Gear J 1 48T Gear K 1 46T Gear L 1 45T Gear M 1 44T Gear N 1 40T Gear O 1 38T Gear P 2 32T Gear Q 1 30T Gear R 1 28T Gear pre mounted 1 Tension Roller Lever S 1 Handle T 1 Female Chuck Key U 2 Male Chuck Keys V 1 1 Cross Point Screwdriver W 1 1 Flat Blade Screwdriver X 1 5pc Hex Wrench Set Y 1 4mm T Handle Hex Wrench not shown 2 Open End Wrenches 8 10mm 12 14mm Z parts marked wit...

Page 10: ... that the BDB 919 and BDB 929 Lathes be connected to a dedicated minimum 25 amp circuit with a circuit breaker or time delay fuse Local codes take precedence over recommendations 7 0 General description 7 1 Lathe bed The Lathe bed is made of high grade iron By combining high cheeks with strong cross ribs a bed of low vibration and rigidity is produced The main motor is mounted to the rear of the b...

Page 11: ... slide and the cross slide travel in dovetailed slides and have gibs adjustable nuts and graduated collars A four way tool post is fitted on the top slide Figure 6 The four way tool post can be converted to a single tool holder with parts enclosed in the toolbox See sect 13 11 1 for assembly of tool holder For accurate facing operations the carriage can be locked by tightening the hex socket cap s...

Page 12: ... bearing on both ends The nut and setscrew on the right end are designed to take up play on the leadscrew 7 7 Gear box The gearbox Figure 11 is made from high quality cast iron and is mounted on the left side of the machine bed The motor drives through handle changeable speeds Always raise idler Figure 4 to the disengaged position when changing speeds 7 8 Drive and electrical equipment The main dr...

Page 13: ...ross Slide Handwheel 6 Top Slide Handwheel 7 Longitudinal Lock Screw 8 Tool Post 9 Tailstock Spindle Handwheel 10 Tailstock Spindle Clamping Lever 11 Tailstock Locking Lever 12 Tailstock Off Set Adjustment 13 Automatic Feed Lever 14 Gear Box Quick Change Lever 15 Emergency switch 16 Power Button Light 17 Left Right Screw Lever ...

Page 14: ...be obtained by using shims under the tool Figure 13 When turning the tool has a tendency to bend under pressure For best results tool overhang should be kept to a minimum of 3 8 or less 9 2 Manual turning Apron travel cross travel and top slide handwheels can be operated for longitudinal or cross feeding Figure 14 9 3 Longitudinal turning with auto feed To use automatic feed establish the gear com...

Page 15: ... constant adjustment until the piece is absolutely true checks the zero position of the tailstock 9 5 Taper turning by setting the top slide By angling the top slide tapers may be turned Figure 17 Loosen two screws 1 Figure 17 top slide can then be rotated A graduated scale permits accurate adjustment of the top slide This method can only be used for short tapers 9 6 Turning Between Centers For tu...

Page 16: ...nut When the tool reaches the part it will cut the initial threading pass When the tool reaches the end of the cut stop the machine by turning the motor off and at the same time back the tool out of the part so that it clears the thread Do not disengage the half nut lever Reverse the motor direction to allow the cutting tool to traverse back to the starting point Repeat these steps until you have ...

Page 17: ...dent lathe chuck This special chuck Figure 22 has four independently adjustable chuck jaws These permit the holding of asymmetrical pieces and enable the accurate set up of cylindrical pieces 10 3 Drill chuck optional Use the drill chuck to hold centering drills and twist drills in the tailstock Figure 23 10 4 Morse taper arbor optional An arbor is necessary for mounting the drill chuck in the tai...

Page 18: ...knurled screws so that fingers are snug but not tight against the workpiece Tighten three nuts 1 Figure 26 Lubricate the sliding points with machine oil 4 When after prolonged operation the jaws show wear the tips of the fingers may be filed or re milled 10 8 Follow rest The follow rest Figure 27 is mounted on the saddle and follows the movement of the turning tool Only two sliding fingers are req...

Page 19: ... 1 Adjustment of main spindle bearings The main spindle bearings are adjusted at the factory If end play becomes evident after considerable use the bearings may be adjusted Loosen setscrew 1 Figure 31 in the slotted nut 2 Figure 31 on the back of the spindle Tighten slotted nut until all end play is taken up The spindle should still revolve freely Caution Excessive tightening or preloading will da...

Page 20: ...w Remove the compound slide and adjust screw 1 Figure 34 until the backlash between the spindle and the nut is eliminated For operator convenience the compound may be located in two positions on the cross slide 11 5 Compound slide spindle backlash adjustment Remove two screws holding the spindle bracket in position and unscrew the spindle Adjust the screw ring 1 Figure 35 until all backlash has be...

Page 21: ...n both nuts 11 7 Replacing the V belt Remove tension on the V belt by pulling lever toward front of the machine Figure 37 Remove belt from the pulley and replace with new belt Move lever toward motor to tension belt Close the cover Caution To avoid breaking the belt move the tension lever towards the front of the machine before starting Figure 38 Figure 36 Figure 37 Figure 37 Figure 38 ...

Page 22: ...ts of oil into oil ball on leadscrew bracket 7 Lightly coat screw and guides of top slide with oil 8 1 to 2 squirts of oil into oil ball on top of tailstock body 9 Lightly coat guides of carriage with oil 10 1 to 2 squirts of oil into hub for feed lever 11 1 to 2 squirts of oil into two oil balls on top of apron and ball in front of it 12 Replace gearbox oil once each year or more often if machine...

Page 23: ...a m to 5 00 p m CST Having the Model Number and Serial Number of your machine available when you call will allow us to serve you quickly and accurately Non proprietary parts such as fasteners can be found at local hardware stores or may be ordered from JET Some parts are shown for reference only and may not be available individually 13 1 1 Headstock Assembly Exploded View ...

Page 24: ...919 012 Gear 40T 1 13 BDB919 013 Pulley 1 14 BDB919 014 Nut M28X1 1 15 BDB919 015 Bushing 1 16 TS 1524011 Socket Set Screw M8 1 25X8 1 17 BDB919 017 Shaft 1 18 BDB919 018 Bushing 2 19 BDB919 019 Gear 80T 1 20 F006080 E Retaining Ring Ext 9mm 1 21 BDB919 021 Ball Oiler 6mm 2 22 BDB919 022 Gear 40T 1 23 BDB919 023 Gear 28T 1 24 BDB919 024 Shaft 1 25 BDB919 025 C Washer 20mm 1 26 F009921 Socket Hd Bu...

Page 25: ...25 13 2 1 Drive Belt Assembly Exploded View ...

Page 26: ...ey 1 113 BDB919 113 Pulley 1 114 F006041 C Retaining Ring Ext 12MM 1 115 BDB919 021 Ball Oiler 6MM 1 116 BDB919 116 Spacer 1 117 BDB919 117 Collar 1 118 BDB919 118 Pulley 1 119 BDB919 119 Large Flat Washer 14MM 1 120 TS 1550041 Flat Washer 6MM 1 121 TS 1503011 Hex Socket Hd Cap Screw M6 1 0X8 1 122 VB 5M710 V Belt 5M710 1 123 BDB919 123 Cog Belt 160XL050 1 124 TS 1503051 Hex Socket Hd Cap Screw M6...

Page 27: ...ing Ring Int 28mm 1 206 BDB919 206 Washer 1 207 BDB919 207 Spring 1 208 BDB919 208 Stud Bolt 1 209 TS 1524011 Socket Set Screw M8 1 25X8 1 210 TS 1503031 Hex Socket Hd Cap Screw M6 1 0X12 1 211 BDB919 211 Pivot 1 212 BDB919 212 Wave Washer 34mm 1 213 F006079 C Retaining Ring Ext 34mm 1 214 JSS16 062 Hex Thin Nut M10 1 215 TS 2311101 Hex Nut M10 1 216 BDB919 216 Washer 10mm 1 217 BDB919 217 Shaft 1...

Page 28: ...er 20mm 1 309 BDB919 021 Ball Oiler 6mm 1 310 BDB919 310 Washer 1 311 F012070 Roll Pin 4x12mm 1 312 BDB919 312 Gear 56T 1 313 BDB919 313 Spacing Ring 1 314 TS 1503011 Hex Socket Hd Cap Screw M6 1 0X8 1 315 TS 2361061 Lock Washer 6mm 1 316 TS 1503081 Hex Socket Hd Cap Screw M6 1 0X35 1 317 BDB919 317 Gear 30T 1 318 BDB919 318 Gear 32T 2 319 BDB919 319 Gear 38T 1 320 BDB919 320 Gear 40T 1 321 BDB919...

Page 29: ...29 13 5 1 Electrical Exploded View ...

Page 30: ...5H BE102C 1 409 BDB919 409 Rubber Gasket 2X15mm 1 410 TS 1502011 Hex Socket Hd Cap Screw M5 0 8x8 9 411 TS 1550031 Flat Washer 5mm 9 412 BDB919 412 Electrical Box Cover 1 413 F009875 Socket Hd Button Screw M4 0 7X8 6 414 BDB919 414 DIN Rail Upper 1 415 BDB919 415 Contactor Delixi CJX21210 110V 1 416 BDB919 416 Capacitor Cover 2 417 BDB919 417 Capacitor 20 mF 1 418 BDB919 418 Cap 2 419 BDB919 419 C...

Page 31: ...1 506 BDB919 506 Acrylic Sheet 1 507 TS 1502021 Hex Socket Hd Cap Screw M5 0 8x10 2 508 TS 1550031 Flat Washer 5mm 2 509 BDB919 509 Tube 1 510 BDB919 510 Shaft 1 511 TS 1522011 Socket Set Screw M5 0 8X6 2 512 TS 1540011 Hex Nut M3 4 513 TS 1550011 Flat Washer 3mm 4 514 F009922 Socket Hd Button Screw M3 0 5X6 4 515 TS 1550021 Flat Washer 4mm 2 516 F009923 Socket Hd Button Screw M4 0 7X6 2 517 TS 15...

Page 32: ...32 13 7 1 Gear Box Exploded View ...

Page 33: ...26 BDB919 626 Shift Lever 1 627 BDB919 627 Fork 1 628 F006043 C Retaining Ring Ext 15mm 5 629 BDB919 629 Gear 20T 1 25 1 630 BDB919 630 Bracket 1 631 TS 1502031 Hex Socket Hd Cap Screw M5 0 8X12 8 632 F012093 Roll Pin 4X26 1 633 BDB919 633 Collar 1 634 BDB919 634 Flange 1 635 BB 6002RZ Bearing 6002RZ 2 636 BDB919 636 Gear 27T 1 25 1 637 BDB919 637 Gear Shaft 18T 1 25 1 638 JWDP12 128 Key Double Rd...

Page 34: ...34 Index No Part No Description Size Qty 705 BDB919 705 Gear 12T 1 25M 1 706 BDB919 706 Screw 1 707 TS 1502021 Hex Socket Hd Cap Screw M5 0 8X10 1 708 BDB919 708 Washer 1 709 BDB919 709 Handle 1 ...

Page 35: ...35 13 8 1 Apron I Exploded View ...

Page 36: ...0 1 723 KEY3308 Key Double Rd Hd A3X3X8 2 724 AHJ12 25 C Retaining Ring Ext 14mm 1 725 BDB919 725 Shaft 1 726 JWDP12 078 Key Double Rd Hd A4X4X6 1 727 BDB919 727 Gear 41T 1M 1 728 BDB919 728 Handle 1 729 BDB919 729 Gear 13T 1M 1 730 TS 1523011 Socket Set Screw M6X6 2 731 BDB919 731 Spring 2 732 SB 5MM Steel Ball 5mm 3 733 BDB919 733 Bracket 1 734 BDB919 734 Gear 36T 1M 1 735 TS 1503071 Hex Socket ...

Page 37: ... 759 BDB919 759 Thread Dial 1 760 BDB919 760 Thread Dial Body 1 761 TS 1550041 Flat Washer 6mm 1 762 TS 1503131 Hex Socket Hd Cap Screw M6 1 0X60 1 763 BDB919 763 Worm Gear 64T 0 5Mn 1 764 TS 2361081 Lock Washer 8mm 1 765 TS 1540061 Hex Nut M8 1 766 TS 1521051 Socket Set Screw M4 0 7X12 2 767 BDB919 767 Set Screw Spcl M5 0 8X25 1 768 TS 1540031 Hex Nut M5 1 769 BDB919 769 Double End Stud 1 770 BDB...

Page 38: ...38 13 10 2 Saddle and Cross Slide Exploded View ...

Page 39: ...1 0X10 1 820 TS 1523031 Socket Set Screw M6 1 0X10 1 821 F004021 Dowel Pin 3X24mm 4 822 TS 1521041 Socket Set Screw M4 0 7X10 3 823 BDB919 823 Hex Nut M4 3 824 BDB919 824 Slide Block 1 825 TS 1550041 Flat Washer 6mm 3 826 TS 1503041 Hex Socket Hd Cap Screw M6 1 0X16 3 827 BDB919 827 Clip 1 828 TS 1523061 Socket Set Screw M6 1 0X20 1 829 TS 2311061 Hex Nut M6 1 830 TS 1503061 Hex Socket Hd Cap Scre...

Page 40: ...40 13 11 1 Compound Slide Exploded View ...

Page 41: ...1503021 Hex Socket Hd Cap Screw M6 1 0X10 3 915 TS 1521071 Socket Set Screw M4 0 7X20 3 916 TS 1540021 Hex Nut M4 3 917 TS 1540041 Hex Nut M6 2 918 5783461 Roll Pin 3X8mm 1 919 130603018 Roll Pin 3X14mm 1 920 BDB919 920 Lock Nut 1 921 BDB919 921 Washer 8mm 1 922 BDB919 922 Lock Handle 1 923 BDB919 923 Lead Screw 1 924 BDB919 924 Lead Screw Mount 1 925 BDB919 925 Graduated Ring 1 926 BDB919 926 Han...

Page 42: ...42 13 12 1 Tailstock Exploded View ...

Page 43: ...dle 1 1014 BDB919 711 Leaf Spring 1 1015 BDB919 1015 Lever 1 1016 BDB919 1016 Handwheel 1 1017 BDB919 1017 Nut 1 1018 BDB919 1018 Set Screw M8X8 1 1019 BDB919 1019 Handle 1 1020 BDB919 1020 Handle Screw 1 1021 BDB919 1021 Pin 1 1022 Y31126180 Roll Pin 4X28mm 1 1023 BDB919 1023 Screw 1 1024 BDB919 1024 Clamping Plate 1 1025 TS 1541031 Nylon Lock Hex Nut M8 1 1026 F014002 Woodruff Key 3X5X13mm 1 102...

Page 44: ...ion Size Qty 1101 BDB919 1101 Rest Casting 1 1102 BDB919 1102 Jaw 3 1103 BDB919 1103 Screw 3 1104 TS 2361081 Lock Washer 8mm 3 1105 TS 1541031 Hex Nut M8 4 1106 BDB919 1106 Adjusting Screw 3 1107 BDB919 1107 Clamping Plate 1 1108 TS 1490091 Hex Cap Bolt M8X50 1 1109 TS 2361081 Lock Washer 8mm 1 ...

Page 45: ...Description Size Qty 1201 BDB919 1201 Follow Rest Casting 1 1202 BDB919 1202 Jaw 2 1203 BDB919 1203 Screw 2 1204 BDB919 1204 Adjusting Screw 2 1205 TS 1541031 Hex Nut M8 2 1206 TS 2361081 Lock Washer 8mm 2 1207 TS 1503071 Hex Socket Hd Cap Screw M6X30 2 1208 TS 2361061 Lock Washer 6mm 2 ...

Page 46: ...46 13 15 1 BD 919 Bed Assembly Exploded View ...

Page 47: ...2 1310 BDB919 1310 Motor 3 4HP 550w 1PH 1 1311 BDB919 1311 Washer 2 1312 PM1000 188 Socket Set Screw M6X35 4 1313 TS 2361061 Lock Washer 6mm 4 1314 TS 1540041 Hex Nut M6 4 1315 BDB919 1315 Large Washer 6mm 2 1316 KF2R5525 Key Double Rd Hd A5X5X25 1 1317 BDB919 1317 Chip Pan 1 1318 BDB919 1318 Rack 1 1319 TS 1501031 Hex Socket Hd Cap Screw M4X10 6 1320 BDB919 1320 Taper Pin 6x16mm 3 1321 BDB919 132...

Page 48: ...48 13 16 1 BDB 929 Bed Assembly Exploded View ...

Page 49: ...2 1310 BDB919 1310 Motor 3 4HP 550w 1PH 1 1311 BDB919 1311 Washer 2 1312 PM1000 188 Socket Set Screw M6X35 4 1313 TS 2361061 Lock Washer 6mm 4 1314 TS 1540041 Hex Nut M6 4 1315 BDB919 1315 Large Washer 6mm 2 1316 KF2R5525 Key Double Rd Hd A5X5X25 1 1317 1 BDB929 1317 Chip Pan 1 1318 1 BDB929 1318 Rack 2 1319 TS 1501031 Hex Socket Hd Cap Screw M4X10 8 1320 BDB919 1320 Taper Pin 6x16 4 1321 1 BDB929...

Page 50: ...ce Plate 190mm 1 1404 BDB919 1404 Spindle Bar 1 1405 BDB919 1405 Chuck Bar 1 1406 BDB919 1406 Dead Center MT2 MT2 2 1407 BDB919 1407 Oil Bottle 1 1408 JHL610 901 Hex Wrench 2mm 2mm 1 1409 TS 152704 Hex Wrench 3mm 3mm 1 1410 TS 152705 Hex Wrench 4mm 4mm 1 1411 TS 152706 Hex Wrench 5mm 5mm 1 1412 TS 152707 Hex Wrench 6mm 6mm 1 1413 WB25 1010 Wrench 8 10mm 8 10mm 1 1414 WB25 1011 Wrench 12 14mm 12 14...

Page 51: ...hru 1510 1 1501 BDB919 1501 Left Stand H 760mm 1 1502 BDB919 1502 Door Latch Assembly 2 1503 BDB919 1503 Stand Plate L 385mm 2 1504 BDB919 1504 Right Stand H 760mm 1 1505 TS 1540071 Hex Nut M10 4 1506 TS 1550071 Flat Washer 10mm 4 1507 TS 149105 Hex Cap Screw M10x35 2 1508 TS 1550041 Flat Washer 6mm 8 1509 TS 1503021 Hex Socket Hd Cap Screw M6X10 8 1510 JET 92 JET Logo not shown 92x38mm 1 ...

Page 52: ...u 1510 1 1501 BDB919 1501 Left Stand H 760mm 1 1502 BDB919 1502 Door Latch Assembly 2 1503 1 BDB929 1503 1 Stand Plate L 645mm 2 1504 BDB919 1504 Right Stand H 760mm 1 1505 TS 1540071 Hex Nut M10 4 1506 TS 1550071 Flat Washer 10mm 4 1507 TS 149105 Hex Cap Screw M10x35 2 1508 TS 1550041 Flat Washer 6mm 8 1509 TS 1503021 Hex Socket Hd Cap Screw M6X10 8 1510 JET 92 JET Logo not shown 92x38mm 1 ...

Page 53: ...3 14 0 Wiring diagram for BDB 919 929 Lathes 1 1 1 2 X V 2 W 1 C 1 C 2 M 1 U 2 W 2 V 1 U 1 3 1 1 0 7 5 4 2 9 8 6 S A P E N L X X X X X X X X X 9 1 0 7 8 5 6 3 4 1 2 R O L KM KM KM S B 1 S B 2 15 16 KM 11 ...

Page 54: ...54 15 0 Speed and threading charts ...

Page 55: ...itional action needed JET has Authorized Service Centers located throughout the United States For the name of an Authorized Service Center in your area call 1 800 274 6846 or use the Service Center Locator on the JET website More Information JET is constantly adding new products For complete up to date product information check with your local distributor or visit the JET website How State Law App...

Page 56: ...56 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...