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Operating Instructions and Parts Manual
Geared Head Mill-Drill Machines
Models: JMD-40GH, JMD-40GHPF, JMD-45GH, JMD-45GHPF
JMD-40GH
JMD-45GHPF
JET
427 New Sanford Road
LaVergne, Tennessee 37086
Part No. M-351040
Ph.: 800-274-6848
Edition 1 03/2017
www.jettools.com
Copyright © 2017 JET
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Summary of Contents for Jet JMD-40GHPF
- Page 1 This .pdf document is bookmarked Operating Instructions and Parts Manual Geared Head Mill-Drill Machines Models: JMD-40GH, JMD-40GHPF, JMD-45GH, JMD-45GHPF JMD-40GH JMD-45GHPF 427 New Sanford Road LaVergne, Tennessee 37086 Part No. M-351040 Ph.: 800-274-6848 Edition 1 03/2017 www.jettools.com Copyright © 2017 JET...
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Page 2: Important Safety Instructions
A guard or other part that is Do not use this mill-drill for other than its damaged should be properly repaired or intended use. If used for other purposes, JET replaced. disclaims any real or implied warranty and holds itself harmless from any injury that may result 17. -
Page 3: Switch Lock-Out
26. Maintain tools with care. Keep cutters sharp 33. Don’t use in dangerous environment. Don’t use and clean for the best and safest performance. power tools in damp or wet location, or expose Follow instructions for lubricating and changing them to rain. Keep work area well lighted. accessories. -
Page 4: Table Of Contents
12.3.1 JMD-40GH,-45GH (non-powerfeed) Gears Assembly – Exploded View ..........24 12.3.2 JMD-40GH,-45GH (non-powerfeed) Gears Assembly – Parts List ............. 25 12.4.1 JMD-40GHPF,-45GHPF (powerfeed) Gear Head Assembly – Exploded View ........26 12.4.2 JMD-40GHPF,-45GHPF (powerfeed) Gear Head Assembly – Parts List ........... 27 12.5.1 JMD-40GHPF,-45GHPF (powerfeed) Gears Assembly- Exploded View .......... -
Page 5: About This Manual
Whatever accepted methods or materials are used, always make personal safety a priority. If there are questions or comments, please contact your local supplier or JET. JET can also be reached at our web site: www.jettools.com. -
Page 6: Specifications
4.0 Specifications Table 1 Model number JMD-40GH JMD-40GHPF JMD-45GH JMD-45GHPF Stock number 351040 351041 351045 351046 Motor and Electricals Motor type Totally-enclosed, fan-cooled, induction Horsepower Phase single Voltage 115/230 (prewired 115V) Cycle 60 Hz Listed FLA (full load amps) 20 / 10... -
Page 7: Mounting Hole Centers
= not applicable The specifications in this manual were current at time of publication, but because of our policy of continuous improvement, JET reserves the right to change specifications at any time and without prior notice, without incurring obligations. -
Page 8: Setup And Assembly
(See Figure 4-1 for mounting hole spacing.) Check for level again. Adjust as necessary until mill-drill is level after fastening hardware has been tightened. NOTE: An optional stand is available from JET, see sect. 11.0. 5.5 Assembly See Figure 5-1 to identify parts. -
Page 9: Lubrication
Slide handwheels (A) onto shafts at front and necessary, do not connect the equipment-grounding both ends of table. If needed, tap with rubber conductor to a live terminal. mallet to seat handwheels onto shafts. Tighten set screws. Check with qualified electrician or service personnel if the grounding Thread handle (D) onto each handwheel and instructions are not completely understood, or if... -
Page 10: Voltage Conversion
6.2 Voltage conversion Tap drawbar head with rubber mallet to dislodge arbor. To convert machine to 230 volt operation: Change incoming power leads according to Do not loosen drawbar wiring diagram on inside cover of motor junction more than 3 or 4 turns before hitting with box. -
Page 11: Gib Adjustments
7.4 Gib adjustments 7.4.1 Table gibs See Figure 7-3. Gibs have been properly adjusted manufacturer. After a period of time, however, movement of the table over the ways will cause normal wear and some “play” between components. To adjust gibs to eliminate this play, proceed as follows. -
Page 12: Operation
8.0 Operation 8.1 Operating controls Refer to Figure 8-1 (non-powerfeed models) or Figure 8-2 (powerfeed models). Depth stop and scale. Non-powerfeed models: Turn knurled knob (A ) until pointer (A ) reaches desired mark on scale. Powerfeed models: Turn scale (A ) to desired depth, and tighten lock handle Downfeed handle (B). -
Page 13: Manual Coarse Feed
To stop feed before cycle has ended, push (N and O, Figure 5-1). Install arbor into spindle using handle (B) toward head. procedure in sect. 7.1. NOTE: Set downfeed dial (H) to zero when not using For best results, all milling operations should be powerfeed. -
Page 14: Lubrication
9.3 Lubrication Note: Spindle bearings are sealed and do not require further lubrication. Applicable Recommended lubricant Location (see Figure 13-1) Frequency model (an equivalent may be used) ® Ball oiler, handwheels (L Mobil DTE Oil Heavy Medium Once daily ® Ball oiler, front of table (L Mobil DTE Oil Heavy Medium... -
Page 15: Troubleshooting Jmd-40Gh/45Gh Series Mill-Drills
10.0 Troubleshooting JMD-40GH/45GH series Mill-Drills Symptom Possible Cause Correction* Motor will not start. Low voltage. Check power line for proper voltage. Open circuit in motor or loose Inspect all lead connections on motor for connection. loose or open connections. Overload has tripped. Press reset button on junction box, and retry. -
Page 16: Optional Accessories
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. Figure 9-1: optional stand... -
Page 17: Jmd-40Gh,-40Ghpf Table, Base, And Column Assembly - Exploded View
12.1.1 JMD-40GH,-40GHPF Table, Base, and Column Assembly – Exploded View... -
Page 18: Jmd-40Gh,-40Ghpf Table, Base, And Column Assembly - Parts List
12.1.2 JMD-40GH,-40GHPF Table, Base, and Column Assembly – Parts List Index No. Part No. Description Size 601 .... JMD18-228G ..... Table ................ 31L ........ 1 602 .... JMD18-229 ....Fixed T-Block ....................2 603 .... JMD18-230 ....Stop Ring ....................... 2 604 .... - Page 19 Index No. Part No. Description Size 642 .... TS-0720131 ....Lock Washer ............5/8” ........ 5 643 .... TS-0208022 ....Hex Socket Head Cap Screw ........5/16”-24x1/2” ....2 644 .... JMD18N-644 ..... Lock Washer ............5/16” ......3 645 .... JMD18N-645 ..... Plug................PT1/4”x3/8” ....1 646 ....
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Page 20: Jmd-40Gh,-45Gh (Non-Powerfeed) Gear Head Assembly - Exploded View
12.2.1 JMD-40GH,-45GH (non-powerfeed) Gear Head Assembly – Exploded View... -
Page 21: Jmd-40Gh,-45Gh (Non-Powerfeed) Gear Head Assembly - Parts List
71 ....2401071 ....Lever Shaft (Left) ................... 1 72 ....JMD40GH-72 .... Name Plate ....................1 ....JET-92 ....... JET Logo (not shown) ..........92x38MM ...... 1 73 ....GHD20-73 ....Phillips Head Screw ..........3/16” x 3/8” ....8 74 .... - Page 22 Index No. Part No. Description Size 76-1 ... 2401076-1 ....Pointer ......................1 77 ....GHD20-77 ....Screw ......................2 79 ....2412001G ....Casting......................1 81 ....GHD20-81 ....Oil Plug ......................1 82 ....TS-0209031 ....Hex Socket Cap Screw ..........3/8”-16 x 3/4” ....6 83 ....
- Page 23 Index No. Part No. Description Size 188 .... GHD20-188 ....Screw ............... 3/16” x 3/8” ....1 249 .... GHD20-249 ....Rivet....................... 2 287 .... GHD20-287 ....Spring Pin ..............Ø4x16Lmm ....2 293 .... HP309 ....... Taper Pin ..............M6xØ7 (1:48) ....1 315 ....
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Page 24: Jmd-40Gh,-45Gh (Non-Powerfeed) Gears Assembly - Exploded View
12.3.1 JMD-40GH,-45GH (non-powerfeed) Gears Assembly – Exploded View... -
Page 25: Jmd-40Gh,-45Gh (Non-Powerfeed) Gears Assembly - Parts List
12.3.2 JMD-40GH,-45GH (non-powerfeed) Gears Assembly – Parts List Index No. Part No. Description Size 1 ....2401001-2 ....Main Shaft Cover ................... 1 3 ....JMD40GH-03 .... Draw Bar ..............7/16” ......1 4 ....GHD20-4 ....Retainer Ring, Internal ..........R68 ....... 1 5 .... -
Page 26: Jmd-40Ghpf,-45Ghpf (Powerfeed) Gear Head Assembly - Exploded View
12.4.1 JMD-40GHPF,-45GHPF (powerfeed) Gear Head Assembly – Exploded View... -
Page 27: Jmd-40Ghpf,-45Ghpf (Powerfeed) Gear Head Assembly - Parts List
12.4.2 JMD-40GHPF,-45GHPF (powerfeed) Gear Head Assembly – Parts List Index No. Part No. Description Size 40 ....GHD20PF-40 .... Screw ............... 3/16” x 3/8” ....1 42 ....61105 ......Spring Base ....................1 43 ....GHD20PF-43 .... Spring Pin ..............3 x 12 mm ..... 2 44 .... - Page 28 Index No. Part No. Description Size 106 .... GHD20PF-106 ..Oil Plug ......................1 107 .... TS-0209081 ....Hex Socket Head Cap Screw ........3/8”-16 x 3/4" ....6 108 .... GHD20PF-108 ..Miter Pin......................2 109 .... TS-0267021 ....Set Screw ..............1/4"-20 x 1/4" ....4 110 ....
- Page 29 346 .... GHD20PF-346 ..Manual Feed Knob ..................1 347 .... JMD40GHPF-347 ..Name Plate ....................1 ....JET-92 ....... JET Logo (not shown) ..........92x38MM ...... 1 348 .... 2450086A ....Pinion Shaft ....................1 349 .... 2450097 ....Clutch Key Pin ............Ø7x23L mm ....2 350 ....
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Page 30: Jmd-40Ghpf,-45Ghpf (Powerfeed) Gears Assembly- Exploded View
12.5.1 JMD-40GHPF,-45GHPF (powerfeed) Gears Assembly- Exploded View... -
Page 31: Jmd-40Ghpf,-45Ghpf (Powerfeed) Gears Assembly - Parts List
12.5.2 JMD-40GHPF,-45GHPF (powerfeed) Gears Assembly – Parts List Index No. Part No. Description Size 1 ....2401001-2 ....Main Shaft Cover ................... 1 2 ....GHD20-28 ....Oil Seal ......................1 3 ....JMD45GH-03 .... Draw Bar ..............7/16” ......1 4 .... -
Page 32: Jmd-45Gh,-45Ghpf Table And Base Assembly - Exploded View
12.6.1 JMD-45GH,-45GHPF Table and Base Assembly – Exploded View... -
Page 33: Jmd-45Gh,-45Ghpf Table And Base Assembly - Parts List
12.6.2 JMD-45GH,-45GHPF Table and Base Assembly – Parts List Index No. Part No. Description Size 601 .... JMD18-228G ..... Table ................ 31L ........ 1 602 .... JMD18-229 ....Fixed T-Block ....................2 603 .... JMD18-230 ....Stop Ring ....................... 2 604 .... - Page 34 * Contents of Accessory Package: ....JMD18-020 ....Cutter Arbor ....................1 ....JMD18-022 ....Handle ......................4 ....JMD18-039 ....Handle Rod ....................3 ....JMD18-040 ....Knob ......................3 ....JMD18-050 ....Lock Handle ....................1 ....
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Page 35: Jmd-45Gh,-45Ghpf Square Column Assembly - Exploded View
12.7.1 JMD-45GH,-45GHPF Square Column Assembly – Exploded View... -
Page 36: Jmd-45Gh,-45Ghpf Square Column Assembly - Parts List
12.7.2 JMD-45GH,-45GHPF Square Column Assembly – Parts List Index No. Part No. Description Size 501 .... JMD45GH-501 ..Vertical Square Column ................. 1 502 .... JMD45GH-502 ..Headstock Swivel Base ................. 1 503 .... JMD45GH-503 ..Oil Cup ..............PT1/8" ......2 504 .... -
Page 37: Electrical Connections, Jmd-40Gh/45Gh Series
13.0 Electrical Connections, JMD-40GH/45GH series 13.1 Wiring Diagram 115V... -
Page 38: Wiring Diagram 230V
13.2 Wiring Diagram 230V... -
Page 39: Warranty And Service
JET sells through distributors only. The specifications listed in JET printed materials and on official JET website are given as general information and are not binding. JET reserves the right to effect at any time, without prior notice, those alterations to parts, fittings, and accessory equipment which they may deem necessary for any reason ®... - Page 40 427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.jettools.com...
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