Precision matthews PM-1440-2SM Manual

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PM-1440-2SM 8-2023

PM-1440-2SM Lathe

2SM-V Smoothly variable spindle speed from 30 to 400 & 135 to 2000 rpm

Inch threads from 4 to 112 TPI, metric threads from 0.1 mm to 7 mm pitch

40 in. between centers, 14 in. swing over bed, 19-1/2 in. over gap

NOTE: Aside from the drive systems, the two lathes described in this manual

are identical, and are referred to generically in most cases as PM-1440-2SM

and

Heavy duty VFD gap-bed machines with 3HP motor

Large bore spindle: 2 inch clearance

Adjustable runout 3-jaw chuck with reversible jaws

2SM Choice of 16 spindle speeds, 60 to 1800 rpm

Weight, including cast iron stand 1600 lb net

PM-1440-2SM-V Includes 8-inch 3-jaw chuck (reversible jaws,

adjustable runout), foot brake, coolant system & work light. Op-

tional 2-axis DRO shown here. Inset: PM-1440-2SM front panel.

PM-1440-2SM-V Lathe

D1-5 camlock spindle mount

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Summary of Contents for Precision matthews PM-1440-2SM

Page 1 2-axis DRO shown here. Inset: PM-1440-2SM front panel. NOTE: Aside from the drive systems, the two lathes described in this manual are identical, and are referred to generically in most cases as PM-1440-2SM PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 2 Section 4. This manual contains essential safety advice on the proper setup, operation, maintenance, and service of the PM-1440-2SM and PM-1440-2SM-V lathes. Failure to read, understand and follow the manual may result in property damage or serious personal injury.
Page 3 They must be filled before use, see Section 4. POWER light OFF? E-STOP button in, right arrow? (rotate to pop it out) Circuit breaker(s) in the electrical compartment tripped? PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 4: Section 1 Installation
L (Low). SETTING UP THE LATHE The PM-1440-2SM lathe is shipped fully assembled in a single With the lathe in its permanent location, level it using metal packing case. The machine can be lifted in one piece by an...
Page 5: Electrical Connections
(brake OFF). Check that the cap screw swings clear, opening Figure 1-6 the switch when the treadle is pressed, Figure 1-5. 220 Vac connection PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 6: Section 2 Features & Specifications
MODEL PM-1440-2SM-V Lathe General information The PM-1440-2SM-V is a robust, heavy duty gap-bed lathe designed for day-in, day-out use in production in the larger model machine shop. It features a 3 HP motor with variable frequency single-phase/three-phase converter (VFD) giving smoothly variable spindle speeds from 30 to 400 rpm and 135 to 2000 rpm. Power requirement is 220 Vac 1Ø.
Page 7 PM-1440-2SM-V SPECIFICATIONS Width 82 in. x Height 61 in. x Depth 31 in. (full range cross slide motion) Footprint: 70-1/4 in. wide x 15-3/4 in. deep Dimensions, approximate overall, incl. stand Bed length, excluding headstock: 54 in. Spindle centerline to floor: 47 in.
Page 8 • Clean the machine routinely – remove chips by brush or vacuum, not com- pressed air (which can force debris into the ways). No list of precautions can cover everything. You cannot be too careful! PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 9: Section 3 Using The Lathe
15. Shift the motor control lever UP. The spindle should Reverse, clockwise rotation, viewed at the chuck (nose) end. Precision Matthews recommends draining and refilling all three gearboxes (Headstock, Power Feed and Apron) after approximately 20 hours of initial run time. Lubricants are specified in Section 4.
Page 10 16. Shift the motor control lever UP. The spindle should Reverse, clockwise rotation, viewed at the chuck (nose) end. Precision Matthews recommends draining and refilling all three gearboxes (Headstock, Power Feed and Apron) after approximately 20 hours of initial run time. Lubricants are specified in Section 4.
Page 11: Motor Control
Don’t use JOG to do The rate of power-feed relative to spindle speed is set by the this! This may cause gear damage. external gears in combination with the internal gearbox below PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 12: Jog Feature
(W and Y) or the feed shaft (X). A distinctive feature of the PM-1440-2SM is its ability to cut a wide range of U.S. and metric threads with only two external gear sets, F and G, Figures 3-5, 3-6A, 3-6B and 3-9. A third set, H, is used for cutting worms to match worm wheels spec- ified by either diametral pitch (DP) or module number (MP).
Page 13 Figure 3-7. Setting the spring pressure [Gear set H enables the PM-1440-2SM-V lathe to convert from is a process of aiming for the best compromise between too the circular pitch of a worm wheel to the linear pitch of a match- high —...
Page 14 0.1963". In the table, the setup for this pitch is HCTY-1. Compare this with GCTY-1 (U.S. threads table, preceding page) for a 4 TPI thread, pitch 0.25". Gear set H runs the leadscrew slower (π/4) than G, so the worm pitch is 0.25 x π/4 = 0.1963". PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 15 (the short red line) with the 60 mark on the cross-slide. For 29 rotate thread. With the tool just grazing the workpiece, the split-nut the compound 1 degree more. PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 16 For all other TPI numbers every engagement, including the If in doubt, re-engage on the start line! first, must be at the point where a specific line on the thread- Figure 3-12 Threading dial visualization for selected U.S. threads PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 17 A battery-powered DRO gives a precise display of quill posi- Figure 3-16 DRO in inches mode tion, in inches and millimeters, Figure 3-15. Zero the display by pressing the ZERO/ABS button. PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 18: Additional Functions
REGULAR mode by briefly pressing the ON/OFF/ Starting the TOL function setup: the displayed value here, all PRE button one more time.) zeros, indicates that there was no preset value in memory. PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 19 — TOL at the lower right corner of the display, Figure 3-23. Figure 3-26 Compound lock screw Figure 3-23 Range monitoring mode, with TOL showing on the display. The value 1.8425 is arbitrary, for illustration only. PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 20 Figure 3-29 Gap insert (representative, taper pins not shown) Figure 3-28 Follower rest (representative photo) On the follower rest suppled with the PM 1440-2SM the brass fingertips are replaced by rollers. PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 21 CAUTION ... HANDLING CAMLOCKS D1-5 chucks and faceplates are heavy, some more than 30 The spindle nose on the PM-1440-2SM accepts D1-5 Camlock lb. They will cause serious damage if allowed to fall. Even chucks, faceplates and other work holding devices.
Page 22 4-jaw independent chuck.) Fully tighten the cap screws and re-indicate; if necessary, back-off the cap screws and re-adjust — looking for a TIR of maybe less than 0.001". PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 23 Figure 3-38. Gear cover interlock Gear cover interlock Speed sensor Spider Figure 3-40 1440-2SM Two-speed belt drive (spider removed) Figure 3-38 1440-2SM-V Spider, interlock & speed sensor PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 25: Section 4 Servicing The Lathe
1. Run the lathe a few minutes to warm the oil if necessary. 2. Open the drive train cover left of the headstock. 3. Remove the fill plug on the top surface of the headstock, Figure 4-1. Figure 4-2 Headstock and gearbox plugs PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 26 Figure 4-7 Saddle, cross slide and compound oilers A 9th oiler, not shown, is above the saddle handwheel Fill plug Sight glass Drain plug Figure 4-5 Apron gearbox oil plugs Figure 4-8 Tailstock oilers PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 27: Gib Adjustment
Factor #1 is correctable in both the cross-slide and compound. Leadscrew handwheels on the PM-1440-2SM are all attached in a similar way, Figures and 4-9 and 4-13. The handwheel is Figure 4-9 Cross slide & compound front gib screws locked to the leadscrew shaft by a key (not shown).
Page 28: Foot Brake
Figure 4-15. Over-tightening can make disengagement of Figure 4-17 Footbrake switch the split nut difficult. Figure 4-15 Split nut gib screws PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 29: Drive Belt Adjustment
Figure 4-18. Adjust the motor position, then re-tighten. There should be no need to loosen the bolts attach- ing the motor to the motor-mount casting. Figure 4-18 Motor mount nuts PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 30 0.001” in 3 inches. If the headstock is (say) 10 inches long, this would be corrected by tapping one end of the headstock forward or back Figure B Quick alignment check PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 31 1. Adjust the chuck for minimum runout at position (1). 2. Check the runout at (2). Pointer movement when traversing if the chuck is worn). Figure E Perfect alignment: zero indicator change be- tween locations 1 and 2 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 32 Runout should be less than 0.0005" TIR. Figure A2 Headstock attachment screws, RH Figure F Morse taper test bar PM-1440-2SM HEADSTOCK ALIGNMENT Figure A1 is an exaggerated top-down view of what happens if the spindle is not precisely aligned with the lathe bed. This...
Page 34 PM-1440-2SM Electrical Schematic Fig 1b When troubleshooting failure to operate, check first the interlocks marked ● When pushed, the E-STOP button remains in, disconnecting power until reset by twisting action. ● KA is the enabling (gate) contactor. It is controlled by...
Page 36 PM-1440-2SM-V Electrical Schematic Fig 2b When troubleshooting failure to operate, check first the interlocks marked ● When pushed, the E-STOP button remains in, disconnecting power until reset by twisting action. ● KA is the enabling (gate) contactor. It is controlled by...
Page 39 Z11036 Pedal shaft Z3654 Taper pin 5×60 Z11037 Brake (1000) Z3655 Sleeve Z11038 Screw M6×10 Z11079 Skt hd set screw M6×8 Z11039 Screw M12×50 Z11080 Bearing cover Z11040 Screw M6×10 Z11081 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 43 Circlip 20 Z11228 Spring 1×6×20 Z11138 Gear 2.25×53 Z3762 Gear Z3808 Screw M8×10 Z11139 Front plug Z3763 Taper pin 6×60 Z11230 Handle Z3716 Z3764 Screw M6×50 Z11231 Collar Z3765 Frame Z3719 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 46 Z3169 Gear Z3234 Roll pin 4×18 Z11308 Key 8×55 Z11269 Shaft Z3171 Shaft/gear Z3236 O-ring 10×1.9 Z11310 O-ring 47×3.1 Z11271 Knob BM8×40 Z11311 Spanner nut Z3238 Handle Z3174 Collar Z3239 Z3175 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 49 Oil seal FB203005 Z11414 Screw M8×12 Z11454 Gasket Z4409 Screw M5×12 Z11415 Spring 1×5×20 Z11455 Spring pin 5×30 Z11376 Head cover Z4452 Ball 1/4" Z11456 Gear 19-50 Z11377 Gasket Z4453 Shaft Z4494 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 50 Z11481 Screw M8×12 Z11482 Sight glass A20 Z11483 Gearbox cover Z4521 Nut M16×1.5 Z11485 Bushing 12090 Z11486 Sleeve Z11487 Thrust bearing 51104 Z11488 Spacer Z11489 Bushing 1415 Z11490 Screw M5×10 Z11491 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 51 Key 5×20 Z11470 Washer Z4360 Gear 66T Z11520 Bushing Z11471 Nut M12 Z11513 Gear 42T Z11521 Gear quadrant Z4509 Shaft Z4362 Screw M8×30 Z11522 T-nut Z4510 Washer Z4363 Key 5×20 Z11523 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 53 Hex nut M8×50 Z11560 Key 5×5×20 Z11600 Drain plug 1/8" Z3397 Gear Shaft Z3437 Half-nut indicator Z3398 Skt hd cap screw M8×30 Z11602 Oil sight glass A20 Z11563 Taper pin 8×40 Z11603 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 54 Pin 3×16 Z11612 Plate Z11643 Bushing Z11607 Leadscrew 2.54mm pitch Z11613 Wiper Z11644 Oiler Z11608 Screw 6×26 Z11614 Screw M10×45 Z11645 Cross slide Z11609 Screw M8×10 Z11615 Leadscrew nut 2.54mm Z11646 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 55 Handle Z11664 Screw M5×25 Z11665 Handwheel Z11666 Screw Z11667 Compound slide Z11668 Screw M8×16 Z11669 Z11670 Screw M6×16 Z11671 Handle Z11672 Screw M5×40 Z11673 Leadscrew nut 2.54mm Z11674 Dimensions in millimeters PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 56 Z11699 Casting Z4082 Lock Block Z4083 Knob M10×50 Z11702 Screw Z11703 Shaft Z11704 Collar Z11705 Pin 5×24 Z11706 Washer B12 Z11707 Nut M12 Z11708 Screw Z4086 Base Z11710 Clamp Plate Z4088 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...
Page 57 Bearing Z11739 Set screw M6×10 Z11740 Hex nut M6 Z11741 Set screw M6x16 Z11742 Follower rest body Z11743 Cap screw M8x40 Z11744 Dowel pin Z11745 Roll pin Z11725 Dowel pin Z11726 PM-1440-2SM 8-2023 Copyright © 2023 Quality Machine Tools, LLC...

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Pm-1440-2sm-v

Precision matthews PM-1440-2SM Manual

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Summary of Contents for Precision matthews PM-1440-2SM

Page 4: Section 1 Installation

Page 5: Electrical Connections

Page 6: Section 2 Features & Specifications

Page 9: Section 3 Using The Lathe

Page 11: Motor Control

Page 12: Jog Feature

Page 18: Additional Functions

Page 24: Coolant System

Page 25: Section 4 Servicing The Lathe

Page 27: Gib Adjustment

Page 28: Foot Brake

Page 29: Drive Belt Adjustment

Page 33: Section 5 Parts

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Precision matthews PM-1440-2SM Manual

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