Jet Tools JMD-15 User Manual

OWNER'S MANUAL

JMD-15/18/18PFN Mill/Drill Machine

(JMD-18 shown with optional CS-18 stand)

JET P.O. BOX 1349 Phone: [phone]

WMH Tool Group Auburn, WA 98071-1349 Fax: [phone]
www.wmhtoolgroup.com e-mail [e-mail] M-350020 05/02

This manual has been prepared for the owner and operators of a JET Mill/Drill. Its purpose, aside from
machine operation, is to promote safety through the use of accepted correct operating and maintenance
procedures. Completely read the safety and maintenance instructions before operating or servicing the
machine. To obtain maximum life and efficiency from your Mill/Drill, and to aid in using the machine
safely, read this manual thoroughly and follow instructions carefully.

Warranty & Service

The WMH Tool Group warrants every product it sells. If one of our tools needs service or repair, one of
our Authorized Repair Stations located throughout the United States can give you quick service.

In most cases, any one of these WMH Tool Group Repair Stations can authorize warranty repair, assist
you in obtaining parts, or perform routine maintenance and major repair on your JET, Performax, Wilton,
or Powermatic tools.

For the name of an Authorized Repair Station in your area, please call 1-800-274-6848, or visit
www.wmhtoolgroup.com

More Information

Remember, the WMH Tool Group is consistently adding new products to the line. For complete, up-to­date product information, check with your local WMH Tool Group distributor, or visit
www.wmhtoolgroup.com

WMH Tool Group Warranty

The WMH Tool Group (including Performax, Wilton and Powermatic brands) makes every effort to
assure that its products meet high quality and durability standards and warrants to the original retail
consumer/purchaser of our products that each product be free from defects in materials and
workmanship as follow: 1 YEAR LIMITED WARRANTY ON ALL PRODUCTS UNLESS SPECIFIED
OTHERWISE. This Warranty does not apply to defects due directly or indirectly to misuse, abuse,
negligence or accidents, normal wear-and-tear, repair or alterations outside our facilities, or to a lack of
maintenance.

THE WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD SPECIFIED ABOVE,
FROM THE DATE THE PRODUCT WAS PURCHASED AT RETAIL. EXCEPT AS STATED HEREIN,
ANY IMPLIED WARRANTIES OR MERCHANTIBILITY AND FITNESS ARE EXCLUDED. SOME
STATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS, SO
THE ABOVE LIMITATION MAY NOT APPLY TO YOU. THE WMH TOOL GROUP 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 EXLUSION OR LIMITATION OF INCIDENTAL
OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY
TO YOU.

To take advantage of this warranty, the product or part must be returned for examination, postage
prepaid, to an Authorized Repair Station designated by our office. Proof of purchase date and an
explanation of the complaint must accompany the merchandise. If our inspection discloses a defect, we
will either repair or replace the product, or refund the purchase price if we cannot readily and quickly
provide a repair or replacement, if you are willing to accept a refund. We will return repaired product or
replacement at JET’S expense, but if it is determined there is no defect, or that the defect resulted from
causes not within the scope of JET’S warranty, then the user must bear the cost of storing and returning
the product. This warranty gives you specific legal rights; you may also have other rights which vary
from state to state.

The WMH Tool Group sells through distributors only. Members of the WMH Tool Group reserve 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.

2



WARNING

Read and understand the entire contents of

this manual before attempting set-up or

operation of this mill/drill.

1. 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.

2. Keep guards in place. Safety guards must
be kept in place and in working order.

3. Remove adjusting keys and wrenches.
Before turning on machine, check to see
that any adjusting wrenches are removed
from the tool.

13. Keep children and visitors away. All
visitors should be kept a safe distance from
the work area.

14. Make the workshop child proof. Use
padlocks, master switches, and remove
starter keys.

15. 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.

16. Always use safety glasses. Every day
glasses only have impact resistant lenses;
they are not safety glasses.

17. Do not overreach. Keep proper footing
and balance at all times.

4. Reduce the risk of unintentional starting.
Make sure switch is in the OFF position
before plugging in the tool.

5. Do not force tools. Always use a tool at
the rate for which it was designed.

6. Use the right tool. Do not force a tool or
attachment to do a job for which it was not
designed.

7. Maintain tools with care. Keep tools
sharp and clean for best and safest
performance. Follow instructions for
lubrication and changing accessories.

8. Always disconnect the tool from the

power source before adjusting or
servicing.

9. 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.

10. Turn power off. Never leave a tool
unattended. Do not leave a tool until it
comes to a complete stop.

11. Keep work area clean. Cluttered areas
and benches invite accidents.

12. 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.

18. Do not place hands near the cutterhead

while the machine is operating.

19. Do not perform any set-up work while

machineisoperating.

20. Read and understand all warnings

posted on the machine.

21. 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.

22. Failure to comply with all of these

warnings may result in serious injury.

23. Some dust created by power sanding,
sawing, grinding, drillingand other
construction activities contains chemicals
known to cause cancer, birth defects or
other reproductive harm. Some examples
of these chemicals are:

• Lead from lead based paint

• crystalline silica from bricks and cement and

other masonry products, and

• arsenic and chromium from chemically­treated lumber.

24. Your risk from those exposures varies,
depending on how often you do this type of
work. To reduce your exposure to these
chemicals: work in a well ventilated area,
and work with approved safety equipment,
such as those dust masks that are
specifically designed to filter out
microscopic particles

3

Specifications: JMD-15/18/18PFN

Stock Number:

JMD-15................................................................................................................................... 350017

JMD-18................................................................................................................................... 350018

JMD-18PFN ............................................................................................................................ 350020

DrillingCapacity:

JMD-15............................................................................................................................................1”

JMD-18/18PFN...........................................................................................................................1-1/4”

Face Mill Capacity:

JMD-15......................................................................................................................................2-1/2”

JMD-18/18PFN.................................................................................................................................3”

End Mill Capacity:

JMD-15......................................................................................................................................... 1/2”

JMD-18/18PFN..............................................................................................................................3/4”

Swing:

All Models ................................................................................................................................15-7/8”

Maximum Distance Spindle to Table:

JMD-15.......................................................................................................................................... 15”

JMD-18.......................................................................................................................................... 18”

JMD-18PFN ...................................................................................................................................26”

Spindle Taper:

All Models ..................................................................................................................................... R-8

Spindle Travel:

JMD-15......................................................................................................................................3-1/2”

JMD-18/18PFN.................................................................................................................................5”

Quill Diameter:

JMD-15......................................................................................................................................2-1/2”

JMD-18/18PFN.................................................................................................................................3”

Head Swivel:

All Models ....................................................................................................................................360°

Column Diameter:

JMD-15......................................................................................................................................3-5/8”

JMD-18/18PFN...........................................................................................................................4-1/2”

Number of Power Downfeeds (JMD-18PFN only) ....................................................................................3

Range Of Power Downfeeds (JMD-18PFN only)......................................................0.004”, 0.007”, 0.001”

Number of Spindle Speeds:

All Models .......................................................................................................................................12

Range of Spindle Speeds:

JMD-15....................................................................................................................110 – 2,580 RPM

JMD-18/18PFN.........................................................................................................150 – 3,000 RPM

Maximum Table Travel:

JMD-15.......................................................................................................................................... 14”

JMD-18/18PFN.........................................................................................................................20-1/2”

Cross Travel:

JMD-15............................................................................................................................................6”

JMD-18/18PFN.................................................................................................................................7”

Working Surface of Table:

JMD-15.............................................................................................................................7-1/2” x 23”

JMD-18/18PFN............................................................................................................9-1/2” x 31-3/4”

Number of T-Slots:

All Models .........................................................................................................................................4

T-Slot Size:

JMD-15.......................................................................................................................................9/16”

JMD-18/18PFN..............................................................................................................................5/8”

T-Slot Centers:

All Models ..............................................................................................................................1-13/16”

4

Overall Dimensions:

JMD-15..............................................................................................36-1/2”L x 37-1/2”W x 35-1/2”H

JMD-18..............................................................................................42-1/2”L x 39-3/4”W x 43-1/2”H

JMD-18PFN ....................................................................................... 42-1/2”L x 39-3/4”W x 51-1/2”H

Base Dimensions:

JMD-15.....................................................................................................................12-1/2” x 19-3/4”

JMD-18/18PFN..........................................................................................................15-3/4” x 23-3/4”

Motor (UL Listed):

JMD-15...................................................................................1 HP, 1Ph, 115V/230V Prewired 115V

JMD-18/18PFN..................................................................................................2 HP, 1Ph, 230V only

Net Weight (approx.):

JMD-15..................................................................................................................................440 Lbs.

JMD-18..................................................................................................................................660 Lbs.

JMD-18PFN ...........................................................................................................................700 Lbs.

Shipping Weight (approx.):

JMD-15..................................................................................................................................540 Lbs.

JMD-18..................................................................................................................................760 Lbs.

JMD-18PFN ...........................................................................................................................800 Lbs.

The specifications in this manual are given as general information and are not binding. WMH Tool
Group 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.

Table of Contents

Warranty .................................................................................................................................................2

Warning...................................................................................................................................................3

Specifications.......................................................................................................................................4-5

Table of Contents....................................................................................................................................5

Contents of the Shipping Container.........................................................................................................6

Unpacking and Clean-up..........................................................................................................................6

Tools Needed for Assembly.....................................................................................................................6

Assembly.................................................................................................................................................7

Installation............................................................................................................................................... 7

Lubrication...............................................................................................................................................8

Electrical Connections .............................................................................................................................8

Controls..............................................................................................................................................9-10

Changing Spindle Speeds.................................................................................................................10-11

Arbor Replacement................................................................................................................................11

Gib Adjustment......................................................................................................................................12

Power Feed Operation...........................................................................................................................12

Adjusting the Spindle Return Spring......................................................................................................12

JMD-15 Parts Lists and Breakdowns.................................................................................................13-18

JMD-18 Parts Lists and Breakdowns.................................................................................................19-28

JMD-15 Wiring Diagram........................................................................................................................29

JMD-18 Wiring Diagram........................................................................................................................30

5

Contents of the Shipping Container

1. Mill/Drill Machine

Accessory Package:

1. 1/2” Drill Chuck w/ Chuck Key

1. Adjustable Carbide Facemill

1. Facemill Arbor

2. Bolts, Nuts, and Washers to
Attach Vise to Table

1. 2-1/2” Angle Vise (JMD-15)

1. 3-1/2” Angle Vise (JMD-18/18PFN)

3. Handle Rods

3. Rubber Knobs

1. 3/8”x1” Hex Socket Cap Screw

1. 3/8” Washer

1. Crank Body

1. Crank Handle

1. 3mm Hex Wrench

1. 5mm Hex Wrench

1. 23mm Hex Socket Wrench (JMD­18/18PFN)

3. Hand Wheels w/ Handles

1. Can Touch-Up Paint

1. Owner’s Manual

1. Warranty Card

1. Lifting Hook

Unpacking and Clean-up

1. Finish removing the crate from the m ill/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.

Tools Needed for Assembly

8” Adjustable Wrench or 1/4” to 1-1/4”
Combination Wrench Set

(JMD-18 shown with optional CS-18 stand)

6

Assembly

1. Screw rubber handles (A, Fig. 1) onto
handle shaft (B, Fig. 1). Screw handle shaft
into downfeed hub (C, Fig. 1) and tighten.
Flat spot on shaft accommodates a
combination or adjustable wrench. Note:
Handle shafts are already installed into hub
on JMD-18PFN.

2. Repeat for other two shaft assemblies.

3. Slide crank (D, Fig. 2) onto shaft and tighten
setscrew(E,Fig.2).Besuresetscrew
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.

bolts. Check for level again. Adjust as
necessary until the mill/drill is level after the
fastening hardware has been tightened.

Installation



WARNING

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. Open the belt cover and thread the lifting
hook into the head. There is a threaded
hole found between the column and the
spindle pulley.

3. Carefully lift the mill/drill with properly rated
equipment to a sturdy stand or work bench.
For best performance, through bolt the
mill/drill to a bench or stand.

4. Remove the lifting hook.

5. 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.

6. If the table is not level, shim under the low
corner(s) until level. Tighten the fastening

7

Lubrication

Lubricate ball oilers (A, Fig. 4) found by the X/Y­axis hand wheels, the oiler found by the
raising/lowering crank handle, and the oiler on
the 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 raise, 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.

4. Change the plug to one that is rated 230V or
hard wire the power cord.

The JMD-18/18PFN is rated at 230V only.
Again, be sure the power source is compatible
with the mill/drill before connecting to the power
source. Make sure the mill/drill is properly

grounded.

Electrical Connections



WARNING

A qualified electrician must make all

electrical connections!

Failure to comply may cause serious injury!

Before making any electrical connections, make
sure the power source available is compatible
with the m achine. Also, press the “Off” button
on the front of the machine before connecting to
the power source.

The JMD-15 is rated at 115/230V and comes
from the factory prewired at 115V.This
mill/drill comes with a plug designed for use on
a circuit with an outlet that looks like (A, Fig. 5).
The JMD-15 has a grounding prong as
illustratedin (A, Fig. 5).

To switch the JMD-15 to 230V operation:

1. Disconnect the machine from the power

source.

2. Remove the junction box cover on the
motor.

3. Change the wires according to the diagram
on the inside of the junction box cover, and
replace the junction box cover.

8

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 s top 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 ass embly 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: theknob(I,Fig.7)mustbe
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