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Operating Instructions and Parts Manual
JMD-15/18/18PFN Mill/Drill Machine
JET
427 New Sanford Road Part No. M-350020
LaVergne, Tennessee 37086 Revision K 11/2020
Ph.: 800-274-6848 ECR 20102809342
www.jettools.com Copyright © 2017 JET
(JMD-18 shown with optional CS-18 stand)
1.0 Warranty and Service
JET warrants every product it sells against manufacturers’ defects. If one of our tools needs service or repair, please
contact Technical Service by calling 1-800-274-6846, 8AM to 5PM CST, Monday through Friday.
Warranty Period
The general warranty lasts for the time period specified in the literature included with your product or on the official
JET branded website.
JET products carry a limited warranty which varies in duration based upon the product. (See chart below)
Accessories carry a limited warranty of one year from the date of receipt.
Consumable items are defined as expendable parts or accessories expected to become inoperable within a
reasonable amount of use and are covered by a 90 day limited warranty against manufacturer’s defects.
Who is Covered
This warranty covers only the initial purchaser of the product from the date of delivery.
What is Covered
This warranty covers any defects in workmanship or materials subject to the limitations stated below. This warranty
does not cover failures due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear,
improper repair, alterations or lack of maintenance. JET woodworking machinery is designed to be used with Wood.
Use of these machines in the processing of metal, plastics, or other materials outside recommended guidelines may
void the warranty. The exceptions are acrylics and other natural items that are made specifically for wood turning.
Warranty Limitations
Woodworking products with a Five Year Warranty that are used for commercial or industrial purposes default to a
Two Year Warranty. Please contact Technical Service at 1-800-274-6846 for further clarification.
How to Get Technical Support
Please contact Technical Service by calling 1-800-274-6846. Please note that you will be asked to provide proof
of initial purchase when calling. If a product requires further inspection, the Technical Service representative will
explain and assist with any additional 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 Applies
This warranty gives you specific legal rights, subject to applicable state law.
Limitations on This Warranty
JET LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH PRODUCT.
EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN
IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
JET SHALL IN NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR FOR
INCIDENTAL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR
PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
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
whatsoever. JET
Product Listing with Warranty Period
90 Days – Parts; Consumable items
1 Year – Motors; Machine Accessories
2 Year – Metalworking Machinery; Electric Hoists, Electric Hoist Accessories; Woodworking Machinery used
for industrial or commercial purposes
5 Year – Woodworking Machinery
Limited Lifetime – JET Parallel clamps; VOLT Series Electric Hoists; Manual Hoists; Manual Hoist
Accessories; Shop Tools; Warehouse & Dock products; Hand Tools; Air Tools
NOTE: JET is a division of JPW Industries, Inc. References in this document to JET also apply to JPW Industries,
Inc., or any of its successors in interest to the JET brand.
®
branded products are not sold in Canada by JPW Industries, Inc.
2
2.0 Table of contents
Section Page
1.0 Warranty and Service ..................................................................................................................................... 2
2.0 Table of contents ............................................................................................................................................ 3
3.0 IMPORTANT SAFETY INSTRUCTIONS ....................................................................................................... 4
4.0 Specifications ................................................................................................................................................. 5
5.0 Contents of Shipping Container ..................................................................................................................... 6
6.0 Unpacking and Clean-up ................................................................................................................................ 6
7.0 Assembly ........................................................................................................................................................ 7
8.0 Installation ...................................................................................................................................................... 7
9.0 Lubrication ...................................................................................................................................................... 8
10.0 Electrical Connections .................................................................................................................................. 8
11.0 Controls ........................................................................................................................................................ 9
12.0 Adjustments ............................................................................................................................................... 10
12.1 Changing Spindle Speeds ...................................................................................................................... 10
12.2 Arbor Replacement ................................................................................................................................ 11
12.3 Gib Adjustment ....................................................................................................................................... 12
12.4 Power Feed Operation (JMD-18PFN only) ............................................................................................ 12
12.5 Adjusting Spindle Return Spring ............................................................................................................ 12
13.0 Replacement Parts ..................................................................................................................................... 13
13.1.1 JMD-15 Head Assembly – Exploded View .......................................................................................... 13
13.1.2 JMD-15 Head Assembly – Parts List ................................................................................................... 14
13.2.1 JMD-15 Table, Base, and Column Assembly – Exploded View .......................................................... 17
13.2.2 JMD-15 Table, Base, and Column Assembly – Parts List ................................................................... 18
13.3.1 JMD-18/18PFN Head Assembly – Exploded View .............................................................................. 19
13.3.2 JMD-18/18PFN Head Assembly – Parts List ...................................................................................... 20
13.4.1 JMD-18/JMD-18PFN Table, Base, and Column Assembly – Exploded View ..................................... 24
13.4.2 JMD-18/JMD-18PFN Table, Base, and Column Assembly – Parts List .............................................. 25
13.5.1 JMD-18PFN Power Feed Assembly – Exploded View ........................................................................ 27
13.5.2 JMD-18PFN Power Feed Assembly – Parts List ................................................................................. 28
14.0 Electrical Connections ................................................................................................................................ 30
14.1 Wiring Diagram: JMD-15 Only ................................................................................................................ 30
14.2 Wiring Diagram: JMD-18 Only ................................................................................................................ 31
3
3.0 IMPORTANT SAFETY
INSTRUCTIONS
Read and understand the entire contents of
this manual before attempting set-up or
operation of this mill/drill.
This machine is designed and intended for use
by properly trained and experienced personnel
only. If you are not familiar with the proper safe
use of mill/drills, do not use this machine until
proper training and knowledge has been obtained.
Keep guards in place. Safety guards must be
kept in place and in working order.
Remove adjusting keys and wrenches. Before
turning on machine, check to see that any
adjusting wrenches are removed from the tool.
Reduce the risk of unintentional starting. Make
sure switch is in the OFF position before plugging
in the tool.
Do not force tools. Always use a tool at the rate
for which it was designed.
Use the right tool. Do not force a tool or
attachment to do a job for which it was not
designed.
Maintain tools with care. Keep tools sharp and
clean for best and safest performance. Follow
instructions for lubrication and changing
accessories.
Always disconnect the tool from the power
source before adjusting or servicing.
Check for damaged parts. Check for alignment
of moving parts, breakage of parts, mounting, and
any other condition that may affect the tools
operation. A guard or any part that is damaged
should be repaired or replaced.
Turn power off. Never leave a tool unattended.
Do not leave a tool until it comes to a complete
stop.
Keep work area clean. Cluttered areas and
benches invite accidents.
Do not use in a dangerous environment. Do not
use power tools in damp or wet locations, or
expose them to rain. Keep work area well lighted.
Keep children and visitors away. All visitors
should be kept a safe distance from the work area.
Make the workshop child proof. Use padlocks,
master switches, and remove starter keys.
Wear proper apparel. Loose clothing, gloves,
neckties, rings, bracelets, or other jewelry may get
caught in moving parts. Non-slip footwear is
recommended. Wear protective hair covering to
contain long hair. Do not wear any type of glove.
Always use safety glasses. Every day glasses
only have impact resistant lenses; they are not
safety glasses.
Do not overreach. Keep proper footing and
balance at all times.
Do not place hands near the cutterhead while
the machine is operating.
Do not perform any set-up work while machine
is operating.
Read and understand all warnings posted on
the machine.
This manual is intended to familiarize you with
the technical aspects of this mill/drill. It is not,
nor was it intended to be, a training manual.
Failure to comply with all of these warnings
may result in serious injury.
WARNING: This product can expose you to
chemicals including lead which is known to the
State of California to cause cancer and birth
defects or other reproductive harm, and
ethylbenzene which is known to the State of
California to cause cancer. For more information
go to http://www.p65warnings.ca.gov.
WARNING: Some dust, fumes and gases
created by power sanding, sawing, grinding,
drilling, welding and other construction activities
contain chemicals known to the State of
California to cause cancer and birth defects or
other reproductive harm. Some examples of
these chemicals are:
lead from lead based paint
crystalline silica from bricks, cement and
other masonry products
arsenic and chromium from chemically
treated lumber
Your risk of exposure varies, depending on how
often you do this type of work. To reduce your
exposure to these chemicals, work in a wellventilated area and work with approved safety
equipment, such as dust masks that are
specifically designed to filter out microscopic
particles. For more information go to
http://www.p65warnings.ca.gov/ and http://www.
p65warnings. ca.gov/wood.
4
4.0 Specifications
Stock No. 350017 350018 350020
Drilling Capacity 1” 1-1/4” 1-1/4”
Face Mill Capacity 2-1/2” 3” 3”
End Mill Capacity 1/2” 3/4” 3/4"
Swing 14-1/2” 15-7/8” 15-7/8”
Maximum Distance Spindle to
Table
Spindle Taper R-8 R-8 R-8
Spindle Travel 3-1/2” 5” 5”
Quill Diameter 2-1/2” 3” 3”
Head Swivel 360° 360° 360°
Column Diameter 3-5/8” 4-1/2” 4-1/2”
Number of Power Downfeeds ---- ---- 3
Range of Power Downfeeds ---- ---- 0.0047”, 0.007”, 0.01”
Number of Spindle Speeds 12 12 12
Range of Spindle Speeds 110-2,580 RPM 150-3,000 RPM 150-3,000 RPM
Maximum Table Travel 14” 20-1/2” 20-1/2”
Cross Travel 6” 7” 7”
Working Surface of Table 7-1/2” x 23” 9-1/2” x 31-3/4” 9-1/2” x 31-3/4”
Number of T-Slots 4 4 4
T-Slot Size 9/16” 5/8” 5/8”
T-Slot Centers 1-1/2” 2-1/8” 2-1/8”
Overall Dimensions
Base Dimensions 12-1/2” x 19-3/4” 15-3/4” x 23-3/4” 15-3/4” x 23-3/4”
Motor (UL listed)
Net Weight (approx.) 440 lbs. 660 lbs. 700 lbs.
Shipping Weight (approx.) 540 lbs. 760 lbs. 800 lbs.
JMD-15 JMD-18 JMD-18PFN
15” 17-1/2” 26”
36-1/2”L x 37-1/2”W x
35-1/2”H
1HP, 1PH, 115/230V
(prewired 115V), 60Hz
42-1/2”L x 39-3/4”W x
43-1/2”H
2HP, 1PH, 115/230V,
(prewired 115V), 60Hz
42-1/2”L x 39-3/4”W x
51-1/2”H
2HP, 1PH, 115/230V,
(prewired 115V), 60Hz
The specifications in this manual are given as general information and are not binding. JET reserves the
right to effect, at any time and without prior notice, changes or alterations to parts, fittings, and accessory
equipment deemed necessary for any reason whatsoever.
5
5.0 Contents of Shipping
Container
1 Mill/Drill Machine
Accessory Package:
1 1/2” Drill Chuck w/ Chuck Key
1 Adjustable Carbide Facemill
1 Facemill Arbor
1 Bolts, Nuts, and Washers to
Attach Vise to Table
1 2-1/2” Angle Vise (JMD-15)
1 3” Angle Vise (JMD-18/18PFN)
3 Handle Rods (JMD-15/18)
3 Rubber Knobs (JMD-15/18)
2 Rubber Knobs (JMD-18PFN)
1 3/8”x1” Hex Socket Cap Screw
1 3/8” Washer
1 Crank Body (Installed)
1 Crank Handle
1 Spindle Guard Assembly
1 3mm Hex Wrench
1 4mm Hex Wrench
1 5mm Hex Wrench
1 23mm Wrench (JMD-18/18PFN)
3 Hand Wheels w/ Handles
1 Can Touch-Up Paint
1 Owner’s Manual
1 Warranty Card
1 Lifting Hook (Installed)
Tools Needed for Assembly
8” Adjustable Wrench or 1/4” to 1-1/4”
Combination Wrench Set
6.0 Unpacking and Clean-up
1. Finish removing the crate from the mill/drill.
Unbolt the machine from the crate bottom.
Report shipping damage, if any, to your
distributor.
2. Clean all rust protected surfaces using a
mild commercial solvent, kerosene or diesel
fuel. Do not use paint thinner, gasoline, or
lacquer thinner. These will damage painted
surfaces. Cover all cleaned surfaces with a
light film of Mobil DTE Oil Heavy Medium.
3. Open the belt cover and thread the lifting
hook into the head.
4. Carefully lift the mill/drill with properly rated
equipment to a sturdy stand or work bench.
5. Remove the lifting hook.
(JMD-18 shown with optional CS-18 stand)
6
7.0 Assembly
1. Screw rubber handles (A, Fig. 1) onto
handle rod (B, Fig. 1). Screw handle rod
into downfeed hub (C, Fig. 1) and tighten.
Flat spot on rod accommodates a
combination or adjustable wrench. Note:
Handle shafts are already installed into hub
on JMD-18PFN.
2. Repeat for other two rod assemblies.
3. Slide crank (D, Fig. 2) onto shaft and tighten
set screw (E, Fig. 2). Be sure set screw
seats on flat part of shaft.
4. Thread handle (F, Fig. 2) into crank and
tighten.
5. Slide handwheel (G, Fig. 3) onto table
handwheel shaft and tighten set screw.
Insert handle (H, Fig. 3) into handwheel and
tighten.
6. Repeat for two remaining table hand wheels.
7. Install spindle guard assembly (Figure 3a).
8.0 Installation
Machine is heavy! Use an
appropriate lifting device and use extreme
caution when moving the machine to its final
location. Failure to comply may cause
serious injury.
1. The location for the mill/drill should be well
lit, dry, and have room enough to allow the
head to rotate 360°.
2. Before bolting the mill/drill to a bench or
stand, the unit must be level in both
directions. Place a level on the table in both
directions.
3. If the table is not level, shim under the low
corner(s) until level. Tighten the fastening
bolts. Check for level again. Adjust as
necessary until the mill/drill is level after the
fastening hardware has been tightened.
7
9.0 Lubrication
Lubricate ball oilers (A, Fig. 4) by the X/Y-axis
hand wheels, the oiler at the raising/lowering
crank handle, and the oiler on front of the bed
once daily with Mobil DTE Oil Heavy Medium.
Lubricate the ways (B, Fig. 4) once daily with
Mobil DTE Oil Heavy Medium.
If the head does not rise or lower smoothly,
apply Mobilith AW2 to the rack, and Mobil DTE
Oil Heavy Medium to the column.
If the feed handles do not turn smoothly, apply
Mobilith AW2 to the cross and longitudinal lead
screws (C, Fig. 4). Access the cross lead screw
by moving the table forward and removing the
way cover.
The spindle bearings are permanently sealed
and require no lubrication.
10.0 Electrical Connections
5. Change power plug to one rated for 230V
and the appropriate amperage for your
machine, or hard wire the power cord to the
service panel (make sure a disconnect is
available for the operator).
A qualified electrician must
make all electrical connections. Make sure
the Mill-Drill is properly grounded. Failure to
comply may cause serious injury.
Before making any electrical connections, make
sure the power source available is compatible
with the machine. Also, turn the machine OFF
using the buttons or switch at the front of the
machine before connecting to the power source.
The JMD Mill/Drills are rated at 115/230V and
come from the factory prewired at 115V. The
JMD-15 comes with a plug designed for use on
a circuit with an outlet that looks like the one in
Fig. 5, and has a grounding prong as illustrated
in Fig. 5. The JMD-18 and JMD-18PFN are not
provided with a plug.
To switch the Mill/Drill to 230V operation:
1. Disconnect machine from power source.
2. Remove junction box cover on the motor.
3. Change the wires according to the diagram
on the inside of the junction box cover, and
reinstall junction box cover.
4. Replace thermal relay with one rated for
230V operation (see parts list).
8
11.0 Controls
Longitudinal Hand Wheels: (X-axis) (A, Fig. 6)
Located on either side of the table. Moves table
side to side.
Cross Feed Hand Wheel: (Y-axis) (B, Fig. 6)
Located on the front of the base. Moves table
toward, or away from the column.
Adjustable Table Stops: (C, Fig. 6)
Located on table front. Adjust to stop table at
any setting along the longitudinal axis.
Table Locks: (D & E, Fig. 6)
Longitudinal table locks are located on front of
the table. Cross-feed table locks are located on
the right side under the table. Turn clockwise to
lock.
Depth Stop:
JMD-15: (K, Fig. 8) located on the left side. Set
nuts for desired depth stop.
JMD-18: (F, Fig. 7) located in the front. Push in
the button on the front of the quick adjust stop
and move to desired position.
JMD-18PFN: Set the depth stop on the power
down feed assembly to desired depth for
repetitive drilling to the same depth, see “Power
Feed Operation” on page 12.
Downfeed Handles: (G, Fig. 7)
Located on the right side of the head casting.
Counter-clockwise movement advances the quill
toward the table. Return spring retracts the
handles. Note: the knob (I, Fig. 7) must be
loose for the downfeed handles to work.
Fine Feed Hand Wheel: (H, Fig. 7)
Located on the front of the head casting. To
activate, tighten the knob (I Fig. 7) and turn the
power feed speed range dial (J, Fig. 7) to zero.
9
Motor Mount Lock Lever: (A, Fig. 9)
Located on the right side of the head casting.
Locks and unlocks the motor mounting plate
enabling the user to tension v-belts.
Head Pivot Lock: (B, Fig. 9)
Located on the right rear of the head casting.
Loosen two hex nuts to rotate the head 360°.
Tighten two hex nuts to lock the head in
position.
On-Off Switch: (C, Fig. 10)
Turns spindle on and off, and changes spindle
direction. Allow the spindle to come to a stop
before reversing rotation.
Quill Lock Handle: (D, Fig. 10)
Located on the front left of the head casting.
Turn clockwise to lock the quill in the desired
position. Turn counter-clockwise to release.
Head Elevating Crank Handle: (E, Fig. 10)
Located at left rear of head casting. Loosen
head pivot lock nuts (B, Fig. 9) and turn handle
clockwise to raise head on the column and
counter-clockwise to lower head.
3. Release two latches (G, Fig. 11) on belt
cover and slide pulley guard open (I, Fig.
11).
This machine is designed
and intended for use by properly trained and
experienced personnel only. If you are not
familiar with the proper and safe use of
mill/drills, do not use this machine until
proper training and knowledge have been
obtained. Failure to comply may cause
serious injury.
12.0 Adjustments
12.1 Changing Spindle Speeds
1. Disconnect the machine from the power
source, unplug.
2. Loosen the motor mount lock lever (F, Fig,
11) and pull the motor toward the head
casting to release tension on the v-belts.
10
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