Operating Instructions and Parts Manual
MILL
Models: ETM–949 and ETM–949EVS
®
JET
427 New Sanford Road
LaVergne, Tennessee 37086
www.jettools.com
Ph.: 855-336-4032
Part No. M-894010
REV D1 10/2018
Copyright © 2017 JET
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 1-855-336-4032, 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, jettools.com.
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.
HOW TO GET TECHNICAL SUPPORT
Please contact Technical Service by calling 1-855-336-4032. 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 1-855-336-4032 or use the Service Center Locator on the JET website.
2
MILL
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, jettools.com.
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 STA TED HEREIN, ANY IMPLIED WARRANTIES OF MERCHANT ABILITY AND FITNESS FOR A P ARTICULAR
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 of ficial 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® branded
products are not sold in Canada by JPW Industries, Inc.
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.
ETM–949 | ETM–949EVS
3
2.0 TABLE OF CONTENTS
1.0 WARRANTY AND SERVICE .........................................................................................................................................2
2.0 TABLE OF CONTENTS .................................................................................................................................................4
3.0 SAFETY WARNINGS ....................................................................................................................................................5
4.0 INTRODUCTION ...........................................................................................................................................................6
5.0 SPECIFICATIONS .........................................................................................................................................................6
6.0 UNPACKING .................................................................................................................................................................7
6.1 CONTENTS OF THE SHIPPING CONTAINTER ......................................................................................................7
7.0 SET-UP AND INSTALLATION .......................................................................................................................................7
7.1 PREPARING THE MILLING MACHINE FOR SERVICE ..........................................................................................7
8.0 ELECTRICAL CONNECTIONS ...................................................................................................................................11
8.1 GENERAL ELECTRICAL CAUTIONS ....................................................................................................................11
8.2 WIRE SIZES ...........................................................................................................................................................11
8.3 LUBRICATION ........................................................................................................................................................11
9.0 OPERATING INSTRUCTIONS ....................................................................................................................................11
9.1 OPERATING CONTROLS ......................................................................................................................................11
9.2 MOTOR SWITCH ...................................................................................................................................................11
9.3 SPEED CONTROL .................................................................................................................................................13
9.4 SPINDLE BRAKE ...................................................................................................................................................13
9.5 HIGH-NEUTRAL-LOW SHIFT LEVER ...................................................................................................................13
9.6 QUILL POWER FEED LEVER ................................................................................................................................13
9.7 FEED RATE LEVER ...............................................................................................................................................14
9.8 FEED TRIP CAM LEVER .......................................................................................................................................14
9.9 FEED DIRECTION CONTROL ...............................................................................................................................15
9.10 COARSE FEED HANDLE ....................................................................................................................................15
9.11 QUILL LOCK LEVER ............................................................................................................................................15
9.12 MICROMETER ADJUSTING NUT ........................................................................................................................15
9.13 FINE FEED HANDWHEEL ...................................................................................................................................15
9.14 DEPTH SCALE AND STOP ..................................................................................................................................16
9.15 POWER FEED OPERATION ................................................................................................................................16
9.16 DRAW BAR OPERATION - CHANGING TOOLING .............................................................................................17
9.17 CLAMPING WORK PIECES TO THE TABLE .......................................................................................................17
10.0 ADJUSTMENTS ........................................................................................................................................................17
10.1 MILL HEAD - LEFT/RIGHT ADJUSTMENT ..........................................................................................................17
10.2 MILL HEAD - FORE/AFT ADJUSTMENT .............................................................................................................18
10.3 POSITIONING THE RAM .....................................................................................................................................19
10.4 GIB ADJUSTMENT ...............................................................................................................................................20
10.5 POWER FEED TRIP LEVER MECHANISM .........................................................................................................20
10.6 TABLE LEAD SCREW BACKLASH ADJUSTMENT .............................................................................................21
10.7 SPINDLE PIN (COLLET RETENTION) ................................................................................................................22
11.0 MAINTENANCE .........................................................................................................................................................23
11.1 LUBRICATION .......................................................................................................................................................23
11.2 PERIODIC MAINTENANCE REQUIREMENTS ....................................................................................................23
12.0 RECOMMENDED SPEED FOR MILL AND DRILL OPERATION .............................................................................24
13.0 REPLACEMENT PARTS ...........................................................................................................................................24
14.0 WIRING DIAGRAM ...................................................................................................................................................48
3.0 SAFETY WARNINGS
1. Read and understand the entire owner’s manual before attempting assembly or operation.
2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with all of these warnings may
cause serious injury. Replace the warning labels if they become obscured or removed.
3. This turret mill is designed and intended for use by properly trained and experienced personnel only. If you are not familiar with the
proper and safe operation of a turret mill, do not use until proper training and knowledge have been obtained.
4. Do not use this turret mill for other than its intended use. If used for other purposes, JET
and holds itself harmless from any injury that may result from that use.
5. Always wear approved safety glasses/face shields while using this turret mill. (Everyday eyeglasses only have impact resistant
lenses; they are not safety glasses.)
6. Before operating this turret mill, remove tie, rings, watches and other jewelry, and roll sleeves up past the elbows. Remove all
loose clothing and confine long hair. Non-slip footwear or anti-skid floor strips are recommended. Do not wear gloves.
4
®
, disclaims any real or implied warranty
MILL
7. Wear ear protectors (plugs or muffs) during extended periods of operation.
8. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.
9. Make certain the switch is in the OFF position before connecting the machine to the power supply.
10. Make certain the machine is properly grounded.
11. Make all machine adjustments or maintenance with the machine unplugged from the power source.
12. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting wrenches are re-moved from the
machine before turning it on.
13. Keep safety guards in place at all times when the machine is in use. If removed for maintenance purposes, use extreme caution
and replace the guards immediately.
14. Some coolants used for machining contain chemicals that may be hazardous to your health if not used properly. Read and
understand all information on the coolant container and protect yourself accordingly.
15. Check damaged parts. Before further use of the machine, a guard or other part that is damaged should be carefully checked to
determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving
parts, breakage of parts, mounting and any other conditions that may affect its operation. A guard or other part that is damaged
should be properly repaired or replaced.
16. Do not use power tools in damp/wet locations or other dangerous environments. Do not expose them to rain. Keep work area well
lighted. Provide for adequate space surrounding work area and non-glare, overhead lighting.
17. Keep work area and the floor around the machine clean and free of scrap material, oil and grease.
18. Keep visitors a safe distance from the work area. Keep children away. Workshop should be childproof; padlocks, master switches,
remove starter keys.
19. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are careless acts that can result
in serious injury.
20. Maintain a balanced stance at all times so that you do not fall or lean against the cutters or other moving parts. Do not overreach
or use excessive force to perform any machine operation.
21. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for which it was not designed.
The right tool will do the job better and more safely.
22. Use recommended accessories; improper accessories may be hazardous.
23. Maintain tools with care. Keep cutters sharp and clean for the best and safest performance. Follow instructions for lubricating and
changing accessories.
24. Turn off the machine and disconnect from power before cleaning. Use a brush or compressed air to remove chips or debris — do
not use your hands.
25. Do not stand on the machine. Serious injury could occur if the machine tips over.
26. Never leave the machine running unattended. Turn the power off and do not leave the machine until it comes to a complete stop.
27. Remove loose items and unnecessary work pieces from the area before starting the machine.
28. Clamp workpiece or brace against column to prevent rotation. For safety and use of both hands, use clamps or a vise to hold work
when practical.
29. Use recommended speed for drill accessory and workpiece material.
30. Direction of feed — feed work into a blade or cutter against the direction of rotation of the blade or cutter only.
31. Installation work and electrical wiring must be done by qualified electrician in accordance with all applicable codes and standards.
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 well-ventilated area and work with approved safety equipment, such as dust masks that are specifi cally designed to fi lter out
microscopic particles. For more information go to http://www.p65warnings.ca.gov/ and http://www.p65warnings.ca.gov/wood.
ETM–949 | ETM–949EVS
5
Familiarize yourself with the following safety notices used in this manual:
!
This means that if precautions are not heeded, it
may result in minor injury and/or possible machine
damage.
This means that if precautions are not heeded, it
may result in serious or even fatal injury.
!
4.0 INTRODUCTION
This manual is provided by JET® covering the safe operation and maintenance procedures for a JET Model ETM-949 and
ETM-949EVS. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions and parts breakdown. Your machine has been designed and constructed to provide years of trouble-free
operation if used in accordance with the instructions as set forth in this document.
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. Retain this manual for future reference. If the machine transfers ownership, the manual should accompany it.
5.0 SPECIFICATIONS
Model Number
Stock Number
Table Size (LxW) (in.) 9 x 49
Spindle Taper (in. x TPI) R-8
Quill Diameter (in.) 3-3/8
Number of Spindle Speeds Variable
Range of Spindle Speeds (RPM) 60-4500 / 60-5000
Quill Down Feed Rates (IPR) .0015-.003-.006
Spindle Travel (in.) 5
Head Movement (deg.) R90° & L45° F&B
Max Distance Spindle to Table (in.) 18-3/4
Distance Spindle to Column (max. in.) 21-2/5
Distance Spindle to Column (min. in). 6
Collet Capacity
Table Longitudinal Travel (in.) 36
Table Cross Travel (in.) 12
T-Slots Number and Size (in.) 3 and 5/8
T-Slot Centers (in.) 2-1/2
Work Table Weight Capacity (lbs.) 750
Travel of Knee (in.) 16
Travel of Ram (in.) 14
Motor (HP)
Inverter E type, 230V 3Ph
Overall Dimensions (LxWxH) (in.) 64 x 66 x 84
Net Weight (lbs.) 2420
Gross Weight (lbs.) 2420
ETM-949, ETM-949EVS,
ETM-949EVS-Type 2
894010, 894050,894050-1
1/8-7/8
3 HP, 230V 3Ph
CSA/CUS Certified
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.
6
MILL
6.0 UNPACKING
Open shipping container and check for shipping damage.
Report any damage immediately to your distributor and
shipping agent. Do not discard any shipping material until
the Turret Mill is assembled and running properly.
Compare the contents of your container with the following
parts list to make sure all parts are intact. Missing parts,
if any, should be reported to your distributor. Read the
instruction manual thoroughly for assembly, maintenance
and safety instructions.
!
Read and understand the entire contents of this
manual before attempting set-up or operation!
Failure to comply may cause serious injury.
If your mill is supplied with an optional Table Powerfeed
and/or DRO, be sure to consult the separate instruction
materials that accompany them.
6.1 CONTENTS OF THE SHIPPING CONTAINER
Note: Some parts may be pre-installed on the mill.
1 Turret Mill (not shown)
1 Flat Way Cover
1 Pleated Way Cover
1 Draw Bar
3 Table Adjustment Handles
1 Tool Box, containing:
1 Hex Key Set (1.5-10mm) *
1 17/19mm Box Wrench *
1 Cross Point Screw Driver #2 *
1 Flat Blade Screw Driver #2 *
1 Oil Can *
1 Elevating Crank Handle
1 Handwheel
1 Coarse Feed Handle
1 Can Silver Touch Up Paint
1 Can Black Touch Up Paint
1 Eye Bolt
1 Operator’s Manual (not shown)
1 Warranty Card (not shown)
* parts with an asterisk are also included in the tool box
service kit, p/n ETM-949/EVS.
7.0 SET-UP AND INSTALLATION
7.1 PREPARING THE MILLING MACHINE FOR
SERVICE
1. Remove any crating which may be covering the ma-
chine on the pallet.
2. Remove accessory items from the pallet or machine
table. Compare these items with the list on the
previous page.
3. Check the tightness of the lifting ring on the ram to be
certain it is tight.
4. Check the tightness of the lock handles on the ram
(see Figure 23) to be certain the ram is locked tight.
5. Remove the nuts and/or bolts, which secure the ma-
chine to the pallet.
6. Center an overhead crane or other suitable overhead
lifting device and sling arrangement over the lifting
ring.
Note: This machine weighs over 2400 pounds! Be
certain the lifting arrangement is new or in excellent
condition and has a safety factor that will account for
age, difficulties in lifting, etc. When lifting using the
ring, the machine will tip forward. If you wish, you can
minimize this tipping by rigging a support sling over
the front of the machine. Be careful when doing this,
to prevent the sling from damaging any components
on the front of the machine. Be sure to steady the mill
to prevent it from spinning.
ETM–949 | ETM–949EVS
Fig. 1
7. Lift the machine off the pallet no higher than neces-
sary to clear the hold-down hardware, then pull
the pallet out of the way. Do NOT get hands or feet
underneath the machine when removing the pallet!
8. Put the machine base over the hold-down system
where the machine will be spotted. Anchor bolts of
sufficient size and length must be fastened to the floor
according to the footprint of the mill. See diagram on
page 9.
7
Note: The accompanying diagrams show you the maximum dimensions of the machines with the table, ram,
etc., fully extended in all possible directions. When
spotting the machine be certain to leave room not only
for the machine itself, but also for operator clearance
and clearance for workers servicing the machine, and
any unusual sizes of workpieces that might extend off
the machine’s table.
9. When the machine is over its anchors, level the ma-
chine using shims under the corners needing them.
The machinist’s level used for leveling should be
placed on the table. The table is the reference surface
for both side-to-side and fore-and-aft leveling. Be cer tain you get it level in BOTH directions.
!
Mill must be supported equally under all four
corners. Failure to comply may cause the column to
twist and put a bind in the table ways.
10. When the machine is level, secure the base to the
anchor system.
Some of the following steps may have already been performed on the machine. If so, ignore the instructions related
to those particular steps. Otherwise, perform them in the
order listed, referring to Figure 9 for any clarification.
15. Install the table traverse and cross-feed cranks on
their respective shafts using the nuts on the shafts to
secure the cranks.
16. Remove any rust proofing from the drawbar and its
washer, and put the drawbar with washer installed into
the spindle center through the top of the machine.
17. Slide the fine feed handwheel over the handwheel hub
and push it back until its rollpin engages the hole in
the hub and the wheel is flush with the hub surface.
18. Put the coarse feed handle on the feed shaft and tap
it lightly until its roll pin engages a hole in the hub and
it is flush against the hub surface.
19. Unwrap and clean the knee crank and install it on its
shaft.
20. Install the rubber way covers at front and behind the
table.
IMPORTANT: Before attempting to raise the mill head,
refer to Mill Head – Left/Right Adjustment in the Adjustments section for procedures to safely raise and set up
the mill head.
11. Loosen the four hex head nuts (see A, Figure 20)
about 1/4 turn each (counterclockwise), just enough to
allow rotation of the head.
12. While assisting the worm mechanism by putting
upward pressure on the motor by hand, use the
wrench supplied with the machine to turn the worm nut
and raise the head to upright position.
13. Tighten the headbolts slightly — not torqued — just
snug.
14. Using mineral spirits or other cleaning solvent, clean
all of the rust proofing from where it may have been
applied. This is important; moving the table or any
other components before removing the rust proofing
will only put rust proofing where you don’t want it.
8
MILL
ETM–949 DIMENSIONS
ETM–949 | ETM–949EVS
Fig. 2
9
ETM–949 OVERVIEW AND TERMINOLOGY
Speed Range Panel
Turret
Lifting Ring
Ram
Head Assembly
Spindle Brake
Feed Rate Lever
Fine Feed Handwheel
Feed Direction
Control
Feed Trip Cam
Lever
Quill Stop
Vari-Speed Handwheel
Quill Locking
Lever
Hi/Lo Shift Lever
Coarse Feed
Handle
Power Feed Lever
Motor Switch
Longitudinal
Crank (2)
Knee Locking
Handle (2)
10
Column
Auto Lubricator
Flat Way Cover
Saddle Locking Handle
Table Stop
T able Locking
Handle (2)
Crossfeed
Crank
Knee
Knee Crank
Fig. 3
MILL
8.0 ELECTRICAL CONNECTIONS
power leads.
8.3 LUBRICATION
!
All electrical connections must be made by a
qualified electrician! Failure to comply may cause
serious injury!
8.1 GENERAL ELECTRICAL CAUTIONS
This machine must be grounded in accordance with the
National Electrical Code and local codes and ordinances.
This work should be done by a qualified electrician. The
machine must be grounded to protect the user from electrical shock.
8.2 WIRE SIZES
!
For circuits which are far away from the electrical
service box, the wire size must be increased in
order to deliver ample voltage to the motor.
To minimize power losses and to prevent motor overheating and burnout, the use of wire sizes for branch circuits or
electrical extension cords according to the following table
is recommended:
AWG Number
Conductor Length
0 – 50 Ft. No. 14 No. 14
50 – 100 Ft. No. 14 No. 12
Over 100 Ft. No. 12 No. 8
Confirm that power at the site matches power requirements of the mill before connecting to the power source.
The ETM-949 has been pre-wired for 230 volt operation.
Before connecting to the power source, make sure that the
switch is in the off position.
The mill must be properly grounded.
Check for proper spindle rotation in the high-speed range.
The spindle should rotate clockwise when viewed from the
top of the machine. If the spindle rotates counter-clockwise, disconnect from power and switch two of the three
230/460 Volt
Lines
120 Volt Lines
Table 1
!
Do not operate the mill before lubricating the
machine fully. Failure to comply may cause damage
to the machine.
Refer to the Maintenance/Lubrication section and make
sure the machine has been fully lubricated before operating.
9.0 OPERATING INSTRUCTIONS
9.1 Operating Controls
The milling machine is equipped with an automatic lubrication system. Ensure that reservoir has the proper amount
of lubricant. The system reservoir is located on the left
side of the machine on the knee.
The position of the milling machine mill head can be set
up to accommodate the work piece being machined. The
mill head can be set up for angles to the left or right and
for fore and aft angles. The mill head can also be rotated
on its turret. The ram can be moved back and forth to
reach work piece locations at the fore and aft extremes of
worktable travel. Refer to the Adjustments section.
9.2 Motor Switch
The Motor Switch is located on the right side of the
machine on the control panel arm. The switch has two
positions: FWD (forward) and REV (reverse).
Setting the switch to FWD will provide clockwise spindle
rotation. Use FWD for normal, right-hand tooling.
FWD (clockwise) operation occurs only when the gearbox is in the low speed position. When the gearbox is in
high-speed position, the motor switch must be in the REV
position to provide right-hand or clockwise rotation. Refer
to Figure 5 for a chart of required switch positions.
The motor switch controls a three-phase motor. The motor
can be switched from FWD to REV and back with the
motor running, and will reverse direction when the switch
setting is changed. At higher speeds, this may put strain
on the timing belt but there will be no damage to the motor
or gear mechanism.
ETM–949 | ETM–949EVS
11
Motor Switch
Fig. 4
12
Fig. 5
MILL
9.3 SPEED CONTROL
9.3.1 VARIABLE SPEED CONTROL
!
Change speed only while the spindle is turning.
Brake Lever
The vari-speed handwheel (A, Figure 6) is used to control
the spindle speed. The speeds for high and low speed
ranges are displayed on the panel on the front of the mill
head (B, Figure 6).
All speed changes must be made while the motor is running. Attempting speed changes without the motor running
can result in damage to the drive mechanism.
B
A
Fig. 6
9.3.2 ELECTRONIC VARIABLE SPEED
The dial on the EVS control panel controls the main motor speed. Motor rpm is displayed on the display screen.
When in low gear, the light beside display 1 will be illuminated. When in high gear the light beside display 2 will be
illuminated.
Fig. 7
9.5 HIGH-NEUTRAL-LOW SHIFT LEVER
The mill head can be driven directly (High Speed) or
through the back gear (Low Speed) in the mill head. The
selection is made by changing the position of the shift
lever.
The shift lever is located at the lower right side of the mill
head (Figure 8). The lever position closest to the operator
is the High setting. The lever position away from the operator is the Low setting. The middle position is the Neutral
setting.
!
Do not shift the High-Low Gear Lever while the motor is running. Rotate the spindle by hand to facilitate changing lever positions.
9.4 SPINDLE BRAKE
The spindle brake lever is located on the upper left side of
the mill head (Figure 7). Pull lever downward to apply the
brake. The spindle brake is also equipped with a power cut
off microswitch. When the brake is applied, the power to
motor is also disengaged.
ETM–949 | ETM–949EVS
Fig. 8
9.6 QUILL POWER FEED LEVER
!
Do not use power feed at speeds above 3000 R.P.M.
13
!
new position.
Note: The knob is spring loaded – pull out to rotate to
It is recommended to disengage the power feed
worm gear whenever the power feed is not required.
This avoids unnecessary wear on the worm gear.
!
Do not move the Quill Power Feed Lever unless
the motor is at a complete stop. When changing
the lever position, do it gently. If the gear does not
engage, jog the motor and allow it to stop before
attempting to change.
The quill power feed lever is located on the right side of
the mill head (Figure 9). It is used to engage and disengage the quill power feed mechanism.
The power feed is engaged by pulling out the knob and rotating the handle to a new locked position. When engaged,
the power feed mechanism will drive the spindle upward or
downward. The power feed mechanism will not drive the
spindle when the handle is in the disengage position.
Quill Power Feed
Lever
Unlike other controls on the machine, the lever shifts into
engagement more easily with the motor running, and the
quill feed lever engaged.
Feed
Rate
Lever
Fig. 10
9.8 FEED TRIP CAM LEVER
The Feed Trip Cam Lever (A, Figure 11) is located on
the left side of the head behind the Manual Fine Feed
Handwheel (B, Figure 11). It engages the overload clutch
on the pinion shaft when positioned to the left. The Feed
Trip Cam Lever stays engaged until Quill Stop (C, Figure
14) comes in contact with Micrometer Adjusting Nut (A,
Figure 14) forcing it to drop out automatically, or until it is
released manually by engaging the lever to the right.
9.7 FEED RATE LEVER
The Feed Rate Lever (Figure 10) is used to set the
per-revolution rate of the power feed mechanism. Three
feed rates are available: 0.0015-inch, 0.003-inch, and
0.006-inch per revolution. The positions are shown on an
indicator plate under the feed rate lever.
The rate is selected by pulling out the knob on the feed
rate lever and moving the handle to the detent of the desired feed rate.
14
B
Fig. 9
A
Fig. 11
MILL
9.9 FEED DIRECTION CONTROL
9.11 QUILL LOCK LEVER
The Feed Direction Control (B, Figure 12) determines
whether the power feed will move up, down, or not move
at all. The position of the knob depends upon the direction
of spindle rotation (see the Motor Switch section). The
position of the control may be changed with the system
stopped or running. If the control does not engage easily,
move the fine feed handwheel (A, Figure 12) back and
forth to aid engagement.
If the spindle is rotating clockwise, in is downfeed; out is
upfeed. If the spindle rotation is counterclockwise, out is
downfeed; in is upfeed. Neutral position is between the in
and out position.
!
It is recommended that the Feed Direction Knob be
left in the neutral position when not in use.
A
B
The Quill Lock Lever (B, Figure 13) is located on the right
side of the head. Rotate the handle clockwise to lock the
quill in a desired position. Rotate the handle counter-clockwise to release.
A
B
Fig. 13
9.12 MICROMETER ADJUSTING NUT
The Micrometer Adjusting Nut (A, Figure 14) is located
on the front of the head. Use for setting specific spindle
depth.
Fig. 12
9.10 COARSE FEED HANDLE
The Coarse Feed Handle (A, Figure 13) is located on the
right side of head. The Coarse Feed Handle is used for
non-precision drilling operations and for moving the quill
to a specific depth. A return spring will retract the spindle
automatically once the handle is released.
9.13 FINE FEED HANDWHEEL
When the controls are set for the Fine feed using Handwheel position (see Figure 5), the Fine Feed Handwheel
(A, Figure 12) can be used for manual fine feed control in
either upward or downward direction of the quill.
!
Remove the Manual Fine Feed Handwheel when not
in use. Failure to comply may cause serious injury.
ETM–949 | ETM–949EVS
15
9.14 DEPTH SCALE AND STOP
Referring to Figure 14:
The Depth Scale and Stop are used in drilling operations
to set the depth of the drilled hole. The depth scale is
located on the front of the mill head. The scale consists of
a Micrometer Adjusting Nut (A), Micro-nut quick adjust (B),
Quill Stop (C), Quill Stop Screw (D), and Scale (E).
The Micrometer Adjusting Nut is set to the desired dimension and is held in place by the friction applied by the
micro-nut quick adjust. The quill stop provides a positive
stop for quill travel.
The graduations on the micrometer nut are in 0.001 inch
increments. Adjustment of quill travel is made by rotating the micrometer nut, or by pressing the micronut quick
adjust button and sliding the nut up or down.
C
A
B
3. Engage the Feed Trip Cam Lever (D) by pulling away
from head assembly.
4. Adjust Micrometer Adjusting Nut (H) against Quill Stop
(G).
5. Continue turning the Micrometer Adjusting Nut (H)
until the Feed Trip Cam Lever (D) trips.
6. Ensure Quill Lock (K) is disengaged by rotating count-
erclockwise.
7. Start the spindle (See Fig. 5):
8. Select feed rate with the Variable Speed Control
Handwheel (E).
9. Set the Feed Rate Lever (B) to the feed rate required
for the tooling and material required.
10. Place the Quill Feed Engagement Lever (F) in the
Engaged position.
11. Select feed direction by setting the Feed Direction
Knob (C) position per the table:
Spindle Direction Feed Direction Knob Position
CW
Down In
Up Out
Down Out
CCW
Up In
Table 2
D
E
Fig. 14
9.15 POWER FEED OPERATION
The Feed Trip Adjustment sets the point at which the quill
will reset during Power Feed.
Referring to Figure 15:
!
Be sure that the Manual Fine Feed Handwheel is removed. Failure to comply may cause serious injury.
1. Move adjuster nut to allow for ample spindle travel.
2. With the Quill Feed Handle (J), advance the quill to
the point where the feed should stop.
12. Engage the Feed Trip Cam Lever (D) by pulling away
from head assembly.
Note: Due to variables in tool diameter, coatings,
coolant, and materials, no specific spindle speed or
feed rate recommendations are provided. Use general
shop manuals that have data applicable to the milling
and drilling operations being performed. Or, contact
the supplier of the tooling, coolant, and material for
specific recommendations.
IMPORTANT: The power feed can be used for drills up
to 3/8” in diameter (mild steel). Use manual feed for
drills larger than 3/8”.
!
The overload clutch is factory set to hold up to 200
lbs. downfeed pressure on the quill (accommodates
drills up to 3/8”). Do not attempt to adjust clutch
pressure.
16
MILL
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