Precision matthews PM-1440HVT-2 Manual

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Model PM-1440HVT-2 Lathe

5HP motor, variable spindle speed from built-in VFD: 30 to 2200 rpm

Single or three-phase 220Vac power

Ultra high-precision machine, with built-in coolant system

9 inch wide bed for exceptional stability

D1-5 camlock spindle mount, 2 inch spindle bore

40 in. between centers, 14 in. swing over bed, 20-3/4 in. over gap

Multi-speed gearbox for full-range screw cutting, TPI & mm pitch

Bidirectional power feed for saddle & cross-slide

Shipped with welded steel or cast iron stand

Total weight, including stand: welded steel 1850 lb; cast iron 2350 lb

PM-1440HVT-2 Shown with included

work light and coolant system

The PM-1440HVT-2 lathe is manufactured in Taiwan

PM-1440HVT-2 7-24-2024 V1

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

Page 1 Shipped with welded steel or cast iron stand Total weight, including stand: welded steel 1850 lb; cast iron 2350 lb PM-1440HVT-2 Shown with included work light and coolant system The PM-1440HVT-2 lathe is manufactured in Taiwan PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 2 Apron - are filled with oil), see Section 4. This manual contains essential safety advice on the proper setup, operation, maintenance, and service of the PM-1440HVT-2 lathe. Failure to read, understand and follow the manual may result in property damage or serious personal injury.
Page 3: Section 1 Installation
4. The headstock gear selectors are set for the lowest spindle speed. SETTING UP THE LATHE The PM-1440HVT-2 is shipped fully assembled in a single packing case. The machine can be lifted in one piece by an overhead hoist or forklift with slings and/or chains, all items rated for a total weight of at least 1-1/2 tons.
Page 4 1-9. Use #10 nuts and bolts, or similar. Location of the light is up to the user—about 3 inches away from the electrical com- partment has been found to work well. Figure 1-5 Machinist's level resting on lathe bed PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 5 Shown here in the neutral con- dition, leadscrew & feed shaft disengaged. Saddle Saddle moves left moves right COOLANT SPINDLE EMERGENCY SPEED STOP Figure 1-10 220 Vac fuses Figure 1-12 Upper front panel PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 6 Shift the motor control lever DOWN, Figure 1-13. The spindle should turn forward, counter clockwise, as Precision Matthews recommends draining and refilling all viewed at the chuck (nose) end. If desired the control three gearboxes (Headstock, Saddle Feed and Apron) af- system can be rewired for DOWN = Reverse.
Page 7: Section 2 Features & Specifications
General information The PM-1440HVT-2 is a high precision gap-bed lathe with a choice of welded sheet metal or cast iron stands, total weights 1850 lb or 2350 lb respectively. It is powered by 220 Vac, either single-phase or three-phase. A 5 HP motor is driven by a built-in VFD for spindle speeds ranging from 30 to 300 rpm (low range), and 300 to 2200 rpm (high range).
Page 8 Quill travel 4 in. Work holding (chucks not included) Faceplate 12 in. diameter Center rest (steady rest) capacity Up to 3-3/4 in. diameter Follower rest capacity Up to 1-1/2 in. diameter PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 9 ● 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-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 10: Section 3 Using The Lathe
Set the FEED DIRECTION knob to neutral, mid-position, What is not in this section ... Figure 3-1 (saddle feed disengaged). The PM-1440HVT-2 is a conventional engine lathe that re- Turn the SPINDLE SPEED potentiometer counter-clock- quires little explanation except for details specific to this partic- wise for a slow starting speed, Figure 3-1.
Page 11 CHUCKS & FACEPLATE The cams on the spindle are turned with a square-tip wrench The spindle nose on the PM-1440HVT-2 accepts D1-5 Cam- similar to the chuck key (may be same tool in some cases). lock chucks, faceplates and other work holding devices.
Page 12 Clamp screws hold the tailstock firmly against a transverse rib in the base casting. Loosen them if necessary to allow offsetting. Figure 3-10 Cam in locked condition PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 13 (jiggle) the spindle while feeling for the mesh, as above. DRIVE TRAINS To disengage the power feed, set the Saddle Feed lever to its The PM-1440HVT-2 headstock contains two gearboxes, up- mid-position. per and lower. The upper gearbox, Figure 3-13, selects the spindle-speed range, L (low) and H (high);...
Page 14 OUT and UP. To power the cross-slide, push the lever IN and DOWN. Test for engage- ment/dis-engagement by gently jiggling the saddle and cross- slide handwheels. PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 15 The large gears in Figures 3-19 are transposing gears, 120T and 127T. They allow a standard-thread leadscrew, in this case 4 TPI, to cut metric threads. The transposing gears are keyed together. Figure 3-20 UNC and UNF threads PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 17 Figure 3-26 Threading dial Minimize wear by swinging the dial indicator assembly away To make the first thread-cutting pass the leadscrew is run at from the leadscrew when not in use. PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 18 Figure 3-27 Threading dial plate 16T in the right-hand column is the number of teeth on the worm wheel that turns the dial. Figure 3-28 Threading dial visualization for selected U.S. threads PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 19 The follower rest, Figure 3-30, is secured to the saddle with two 8 mm socket head screws. Adjust the follower fingers as described for the steady rest. Figure 3-31 Saddle, cross-slide and compound locks PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 20 COOLANT SYSTEM An 8-inch long section of the bed at the headstock end can be The PM-1440HVT-2 lathe comes with a built-in coolant sys- removed to allow turning of diameters up to 20-3/4 in., Figure tem. The main components are a pump in the right-hand cabi- 3-32.
Page 21: Section 4 Servicing The Lathe
2. Remove the fill plug on the top surface of the headstock, Figure 4-1. 3. Place a drain pan (1 gallon minimum) on a stool or other support at about the height of the chip tray. PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 22 Replace the drain plug. Add oil to the halfway mark on the sight glass (about 1 qt). Figure 4-7 Tailstock oiler Sight glass Figure 4-5 Apron gearbox fill & drain plugs PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 23 Figure 4-13. The lock nut is then rotated a few degrees, and re-locked. Users are recommended to contact Precision Matthews for additional information on this procedure. Figure 4-10 Cross-slide & compound front gib screws Figure 4-13 Spindle bearing adjustment Figure 4-11 Cross-slide &...
Page 24 Factor #1, end-float, is correctable in both the cross-slide and compound. Figure 4-14 Handwheel attachment Leadscrew handwheels on the PM-1440HVT-2—cross-slide, compound and tailstock— are attached in a similar way, Fig- ures 4-13 and 4-14. The handwheel is locked to the leadscrew shaft by a key (not shown).
Page 25 Figure 4-18. If it is necessary to remove the belt, lower its tension by raising the motor mount a half- inch or so, then roll the belt off the upper (driven) pulley. Figure 4-19 Brake assembly (representative) PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 26 0.001” in 3 inches. If the headstock is (say) 10 inches long, this would be Figure B Quick alignment check corrected by tapping one end of the headstock forward or back PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 27 4. If there is a significant difference in TIR* from (1) to (2), try instructions for the PM-1440HVT-2 follow this section. to correct this by loosening, then re-tightening the chuck/ collet, while levering the outer end of the rod (gentle tap- ping with a non-marring hammer can also be helpful).
Page 28 Runout should be less than 0.0005" TIR. Figure H Headstock attachment screws, RH Figure F Morse taper test bar PM-1440HVT-2 HEADSTOCK ALIGNMENT Figure G is an exaggerated top-down view of what happens if the spindle is not precisely aligned with the lathe bed. This...
Page 35 The motor control shaft is turned by a lever on the saddle apron — Forward DOWN, Reverse UP, Mid-point OFF. FORWARD Motor control shaft REVERSE MOTOR OFF PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 36 FOOT BRAKE PEDAL Z11767 SHAFT Z11775 V-BELT PULLEY Z11813 CONNECTOR SHAFT Z11768 COLLAR Z11776 SET SCREW M10x20 Z11814 LEVER Z11769 CLAMP Z11777 Z11815 LEVER Z11770 SHAFT Z11778 SCREW 1/2"x1-1/2" Z11816 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 37 LEAD SCREW (4 TPI) (4 MM) Z11821 BUSHING Z11829 SWITCH Z11863 SHAFT Z11822 BRACKET Z11830 PIN 5x20 Z11864 FOR/REV, THIRD-ROD SHAFT Z11823 BUSH Z11831 CAP SCREW M4x40 Z11865 COLLAR Z11824 BUSH Z11832 SCREW M5x10 Z11866 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 38 SNAP RING ( S15 ) Z11901 PVC KNOB Z11902 OIL RING Z11903 SPRING PIN ( 5x30 ) Z11904 SET SCREW M8x10 Z11905 SCREW Z11906 PLUG (3/8 G. P.) Z11907 OIL SIGHT (29mm) Z11908 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 39 Z11951 BEARING CAP Z11913 COLLAR Z11921 Z11952 SHAFT Z11914 BEARING CAP Z11922 PLUNGER/SPRING/SCREW Z11953 GEAR M2x76T Z11915 MAIN SPINDLE Z11923 SENSOR Z11954 GEAR M2x23T Z11916 INDEXING CAP Z11924 SCREW Z11955 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 40 CHANGE GEAR ( M1.25 x 45T ) Z11981 CHANGE GEAR ( M1.25 x 66T ) Z11982 CHANGE GEAR ( M1.25 x 69T ) Z11983 CHANGE GEAR ( M1.25 x 78T ) Z11984 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 41 SHIFT FORK Z11990 CAP SCREW M6x30 Z11998 OIL RING ( P34 ) Z12007 HANDLE Z11991 BALL/SCREW/SPRING Z11999 SNAP RING ( S40 ) Z12008 LEVER Z11992 BALL/SCREW/SPRING Z12000 INDEXING PLATE Z12009 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 42 Z12046 KEY 6x65 Z12047 SNAP RING ( S25 ) Z12048 KEY 5x85 Z12049 KEY 5x12 Z12050 SNAP RING ( S20 ) Z12051 KEY 6x40 Z12052 BEARING ( #6302 ) Z12053 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 43 Z12066 SNAP RING ( S30 ) Z12067 CAP SCREW M6x20 Z12068 CAP SCREW M8x10 Z12069 BALL/SCREW/SPRING Z12070 PLUG ( 5/8" ) Z12071 SET SCREW M6x10 Z12072 OIL SIGHT (29mm) Z12073 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 44 THREAD BODY INDICATOR Z12227 THREAD DIAL BODY Z12228 GEAR M2x16T Z12229 FLAT WASHER Z12230 CAP SCREW M6x12 Z12231 CAP SCREW M6x45 Z12232 THREADING DAIL Fig 15 THREAD CHART PLATE Z12233 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 45 THRUST BEARING ( #2902 ) Z12137 CAP SCREW M6x25 Z12138 NAIL ( 2mm ) Z12139 BALL/SCREW/SPRING Z12140 SCREW M12x12 Z12141 KEEP ASSY Z12142 THRUST BEARING ( #51101 ) Z12143 NUT M12 Z12144 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 46 LEAD SCREW Z12150 BOLT Z12158 STEEL BALL AND SPRING Z12176 BRACKET Z12151 T-SLOT NUT Z12159 SCREW M6x16 Z12177 INDEXING RING Z12152 4 - WAY TOOL POST Z12160 SET SCREW M6x16 Z12178 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 47 SHAFT Z12181 SCREW Z12182 COLLAR Z12183 HANDLE Z12184 SHAFT Z12185 SCREW Z12186 HANDLE Z12187 SHAFT Z12188 SCREW Z12189 SCREW Z12190 SPRING PIN Z12191 SPRING PIN Z12192 CASTING Z12193 SCREW Z12194 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...
Page 48 SET SCREW M5x10 Z12219 PVC KNOB Z12220 KEY 5x12 Z12221 THRUST BEARING (#2902 ) Z12222 CAP SCREW M6x20 Z12223 SCREW M6x16 Z12224 OILER ( 1/4" ) Z12225 CAP SCREW M5x16 Z12226 PM-1440HVT-2 7-24-2024 V1 Copyright © 2024 Quality Machine Tools, LLC...

Precision matthews PM-1440HVT-2 Manual

Table of Contents

Need help?

Questions and answers

Related Manuals for Precision matthews PM-1440HVT-2

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

Page 3: Section 1 Installation

Page 7: Section 2 Features & Specifications

Page 10: Section 3 Using The Lathe

Page 21: Section 4 Servicing The Lathe

Page 29: Section 5 Parts

Table of Contents