Precision matthews PM-30MV Manual
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Precision matthews PM-30MV Manual

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Model PM-30MV Milling Machine
2 HP (1.5 kW) brushless dc motor, 220 Vac single phase power
Quiet belt drive, no gears
Variable spindle speed from 50 to 3000 rpm
Table size 33" x 8-1/4"
Quill DRO for precise downfeed measurement
Square column design, heavy cast iron construction
Options: Table (X-axis) power feed; 3-axis DRO;welded steel stand/cabinet
Machine weight 530 lb, stand 75 lb
PM-30MV with 3-axis DRO (option)
Table power feed
(option)
PM-30MV on stand/cabinet (option)
PM-30MV v3 2020-10
1
Copyright © 2020 Quality Machine Tools, LLC

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Summary of Contents for Precision matthews PM-30MV

  • Page 1 Quill DRO for precise downfeed measurement Square column design, heavy cast iron construction Options: Table (X-axis) power feed; 3-axis DRO;welded steel stand/cabinet Machine weight 530 lb, stand 75 lb PM-30MV with 3-axis DRO (option) Table power feed (option) PM-30MV on stand/cabinet (option) PM-30MV v3 2020-10 Copyright ©...
  • Page 2 CHIP GUARD open? (close it) This manual describes PM-30MV machines as shipped from June 2017. It contains essential safety advice on the proper setup, operation, maintenance, and service of the machine. Failure to read, under- stand and follow the manual may result in property damage or serious personal injury.

  • Page 3: Section 1 Installation

    Setting up the mill The PM-30MV is shipped in two packing cases, one for the machine and tray (including optional 3-axis DRO), one for the stand, if ordered. The following procedure makes use of an engine hoist, minimum weight rating 1000 lb.
  • Page 4 Restore power by twisting the E-Stop button to the firmly right; this will cause it to pop out. Check that the chip guard switch disconnects power when the guard is swung out. PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...

  • Page 5: Section 2 Features & Specifications

    General information The PM-30MV is a robust “square column” mill with R8 spindle and continuously-variable spindle speed up to 3000 rpm. It is designed for day-in, day-out use in the model shop. With a weight of 530 lbs, excluding stand, it can handle far more than the typical small machine.
  • Page 6 Left-right travel (X-axis)* 23 in. Front-back travel (Y-axis)* 7-5/8 in. T-slots (3) 14 mm wide, 63.5 mm (2-1/2 in.) centerline spacing * DRO installation may limit these numbers T-slot dimensions PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 7 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-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...

  • Page 8: Section 3 Using The Mill

    R = Reverse (counter clockwise, looking down) Figure 3-1 Motor controls SPINDLE SPEEDS The PM-30MV is a belt-driven machine with two speed ranges, (L) 50-1500 rpm and (H)1400-3000 rpm. To select a speed range, disconnect power, then remove the blue motor cover (4 screws). Loosen the socket head screws on each side of the motor, then swing the motor forward to free the belt, Figure 3-2.

  • Page 9: Moving The Table

    “Positioning by Counting X-Y Divisions”, later in this section. PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 10 Figure 3-8. The headstock should also be locked, Figure 3-9. igure 3-9 Z-axis locks Figure 3-8 Quill locking lever PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 11 Install an edge-finder in collet or chuck (a tip diameter of ing it precisely either by counting divisions on the graduated 0.2” is assumed). collar inboard of hub (1), or by reference to the digital readout Lock the X-axis (optional). PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...

  • Page 12: Tapping Operations

    Be especially careful if the head has not been moved before – the paint seal may let go without warning. (First-time tilting may also call for unusual PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 13 As a starting Figure 3-17 shows a typical shop-made holder; it has a thread- point, aim for ± 0.001” with a sweep radius of 5 or 6 inches. PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 14 For routine milling operations the workpiece is held in a preci- Most 4” vises have either 14 mm or 16 mm slots, calling for sion vise. For the PM-30MV a 4” vise is most suitable. “Indicat- shop-made adapter keys as Figure 3-20. It is well worth the ing”...

  • Page 15: Section 4 Maintenance

    The lower screw is under the pleated way cover. to expose the remainder of the working surfaces, locking and cleaning at each setting. Spindle bearings See Servicing Quill and Spindle, two pages on. PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...

  • Page 16: Spindle Bearings

    Bearing manufacturers recommend that the free volume be- A second screw is located in a similar position on the other side of tween inner and outer should be no more than 30% filled with the leadscrew. PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 17 Figure 4-6 Quill DRO scale and quill assembly (representative) For illustration only: for servicing operations the scale should be case. detached from the quill and should remain in the DRO PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 18 Gear engagement “Proper engagement” is hard to specify. The separation that should The power feed available from Precision Matthews is powered exist between the gears can be gaged in several ways, one easy way by the standard 110Vac 60 Hz supply. It comes with a com- being to insert a scrap of standard printer paper (usually about 0.004”...

  • Page 19: Section 5 Parts

    Section 5 PARTS Model PM-30MV ELECTRICAL SCHEMATIC Fig 1 PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 20 PM-30MV ELECTRICAL BOX Fig 2 Dimensions in millimeters Ref Description Part Z5372 Front panel Z5373 Screw M4×8 Z5374 Potentiometer Z5375 Direction switch Z5376 Power ON/OFF Z5377 Fuse (5 A) Z5378 Washer 4 Z5379 Tach display Z5380 Contactor rail Z5381 Contactor...
  • Page 21 PM-30MV HEADSTOCK Fig 4 Speed sensor and bracket 41. Optically detects holes in index ring 82. PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 22 Z5420 Block B Z5455 Drawbar Z5490 Worm shaft Z5421 Washer 12 Z5456 Z5491 Faceplate Z5422 Screw M12×50 Z5457 Screw M4×8 Z5423 Bracket B Z5458 Fine-feed dial Z5424 Retaining clip Z5459 PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...
  • Page 23 PM-30MV TABLE & BASE Fig 5 Dimensions in millimeters Ref Description Part Ref Description Part Ref Description Part Handle M10×80 Z5492 Pipe connector Z5508 Z5523 Lock Nut M10 Z5493 Table Z5509 Position marker Z5524 Washer 10 Z5494 Dovetail nut Z5510 Screw M6×12...
  • Page 24 Bushing Z5567 Screw M5×12 Z5545 Key 4×12 Z5557 Bevel gear Z5568 Bearing 6001-2Z Z5546 Shaft Z5558 Z-axis leadscrew Z5569 Bearing flange Z5547 Key 4×16 Z5559 Leadscrew nut Z5570 Bushing Z5548 PM-30MV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC...

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