This .pdf document is bookmarked
Operating Instructions and Parts Manual
Step-Pulley Turret Mill
Model JVM-836
JET
427 New Sanford Road
LaVergne, Tennessee 37086 Part No. M-690036
Ph.: 800-274-6848 Revision C 11/2014
www.jettools.com Copyright © 2014 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 1-800-274-6846, 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 Co vered
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 ma chines in the pr ocessing of metal, plastics, or oth er m aterials 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 provid e pr o of
of initia l p u rch a s e whe n 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 Appli es
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; Light-Duty Air Tools
1 Year – Motors; Machine Accessories; Heavy-Duty Air Tools; Pro-Duty Air Tools
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
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 Safety warnings .............................................................................................................................................. 4
4.0 About this manual .......................................................................................................................................... 5
5.0 Specifications ................................................................................................................................................. 6
6.0 JVM-836 Installation Layout ........................................................................................................................... 7
7.0 Setup and Assembly ...................................................................................................................................... 8
7.1 Unpacking .................................................................................................................................................. 8
7.2 Contents of shipping container ................................................................................................................... 8
7.3 Site preparation .......................................................................................................................................... 9
7.4 Lifting the mill ............................................................................................................................................. 9
7.5 Completing assembly ................................................................................................................................. 9
7.6 Lubrication ................................................................................................................................................ 10
8.0 Electrical connections .................................................................................................................................. 10
8.1 Conversion from 115V to 230V (JVM-836-1 only) ..................................................................................... 10
8.2 Wire Sizes ................................................................................................................................................ 10
9.0 Controls ........................................................................................................................................................ 11
10.0 Operation ................................................................................................................................................... 12
10.1 Precautions ............................................................................................................................................ 12
10.2 Clamping work piece to table ................................................................................................................. 12
10.3 Changing speeds ................................................................................................................................... 12
10.4 Fine feed ................................................................................................................................................ 12
10.5 Draw bar operation; changing tooling ..................................................................................................... 13
11.0 Adjustments ............................................................................................................................................... 13
11.1 Head movement: left and right ............................................................................................................... 13
11.2 Positioning ram ....................................................................................................................................... 14
11.3 Gib adjustment ....................................................................................................................................... 14
11.4 Ram wear plate adjustment .................................................................................................................... 14
11.5 Table lead screw backlash adjustment .................................................................................................. 14
12.0 Speed charts for JVM-836 ......................................................................................................................... 16
13.0 Replacement Parts ..................................................................................................................................... 16
13.1.1 JVM-836 Head Assembly – Exploded View ........................................................................................ 17
13.1.3 JVM-836 Head Assembly – Parts List ................................................................................................. 18
13.2.1 JVM-836 Upper Head Assembly – Exploded View ............................................................................. 20
13.2.2 JVM-836 Upper Head Assembly – Parts List ...................................................................................... 21
13.3.1 JVM-836 Leadscrew Assembly – Exploded View ............................................................................... 23
13.3.2 JVM-836 Leadscrew Assembly – Parts List ........................................................................................ 24
13.4.1 JVM-836 Base Assembly – Exploded View ........................................................................................ 25
13.4.2 JVM-836 Base Assembly – Parts List ................................................................................................. 26
13.5.1 JVM-836 One Shot Lubrication System – Exploded View .................................................................. 28
13.5.2 One Shot Lubrication System – Parts List ........................................................................................... 28
14.0 Electrical Connections for JVM-836 ........................................................................................................... 29
3
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.
3. Replace the warning labels if they become
obscured or removed.
4. This turret mill is designed and intended for
use by properly trained and experienced
perso nnel on ly. If you are no t fam iliar w ith the
proper and safe operation of a turret mill, do
not use until proper training and knowledge
have been obtained.
5. Do not use this turret mill for other than its
intended use. If used for other purposes, JET
disclaims any real or implied warranty and
hold s itself harmles s from a ny injury t hat may
result from that use.
6. Always wear approved safety glasses/face
shields while using this mill. Everyday
eyeglasses only have impact resistant lenses;
they are not safety glasses.
7. Before operating this machine, remove tie,
rings, watches and other jewelry, and roll
sleeves up past the elbows. Remove all loose
clothi ng a nd confine long hair.
8. Non-slip safety footwear and anti-skid floor
strips are recommended. Do not wear gloves.
9. Never place hands near or around a revo lving
tool or part.
10. Wear ear protectors (plugs or muffs) during
extended periods of operation.
11. Some dust created by power sanding, sawing,
grinding, drilling and other construction
activities contain 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, 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 face or dust masks
that are specifically designed to filter out
microscopic particles.
12. Do not operate this machine while tired or
under the influence of drugs, alcohol or any
medication.
13. Make certain the switch is in the OFF po sition
before connecting the machine to the power
supply.
14. Make certain the machine is properly
grounded.
15. Make all machine adjustments or maintenance
with the machine unplugged from the power
source.
16. Workpiece must be attached or clamped to the
table. Never hold a workpiece with your hand.
17. Use correct spindle speed and table feed for
the particular job.
18. Do not start machine with cutter in contact with
workpiece.
19. Disengage power feed when not in use.
20. Remove adjusting keys and wrenches. Form a
habit of checking to see that keys and
adjusting wrenches are removed from the
machine before turning it on.
21. 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 after
completion of maintenance.
22. 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.
23. Provide for adequate space surrounding work
area and non-glare, overhead lighting.
24. Keep the floor around the machine clean and
free of scrap material, oil and grease.
25. Keep visitors a safe distance from the work
area. Keep children away.
26. Make your workshop child proof w ith padlocks,
master switches or by removing starter keys.
27. Give your work undivided attention. Looking
around, carrying on a conversation and “horseplay” are careless acts that can result in
serious injury.
4
28. Maintain a balanced stance at all times so that
you do not fall or lean against the cutter or
other moving parts. Do not overreach or use
excessive force to perform any machine
operation.
29. Use the right tool at the correct speed and
feed rate. Rotate spindle clockwise for righthand tools, counterclockwise for left-hand
tools. 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.
30. Use recommended accessories; improper
accessories may be hazardous.
31. Frequently clean this machine. Maintain tools
with care. Keep cutters sharp and clean for the
best and safest performance. Follow
instructions for lubricating and changing
accessories.
Familiarize yourself with the following safety notices used in this manual:
This means that if preca utions are not heeded, it m ay result in minor injury a nd/or possible
machine damage.
32. Turn off the machine before cleaning. Use a
brush or compressed air to remove chips or
debris — do not use your hands.
33. Do not stand on the machine. Serious injury
could occur if the machine tips over.
34. Never leave the machine running unattended.
Turn the power off and do not leave the
machine until it comes to a complete stop.
35. Remove loose items and unnecessary work
pieces from the area before starting the
machine.
36. Don’t use in dangerous environment. Don’t
use this machine in damp or wet locations, or
expose it to rain. Keep work area well lighted.
37. Some coolants used for machining contain
chemicals that may be hazardous to your
health if not used properly. Read and
understand all user information listed on the
coolant container and protect yourself
accordingly.
This means that if precautions are not heeded, it may result in serious, or possibly even fatal,
injury.
4.0 About this manual
This manual is provided by JET, cover ing the safe operation and maintenance procedures for a J ET Model
JVM-836 Turret Mill. 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 consistent, long-term operation if used in accordance with the instructions 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.
Read and understand the entire contents of this manual before attem pting assembly
or operation! Failure to comply may cause serious injury!
5
5.0 Specifications
Mode l Number ................................................................................... JVM-836-1..................................... JVM-836-3
Stock Number ......................................................................................... 690036........................................... 690038
Motor an d Electricals:
Motor type .................................................................................. TEFC induction............................... TEFC induction
Horsepower ................................................................................................ 1-1/2.............................................. 1 -1/ 2
Phase ............................................................................................................... 1.................................................... 3
Voltage ....................................................................... 115/230V (prew ired 115V) ....................................... 230V only
Cycle ..........................................................................................................60Hz.............................................. 60Hz
Listed FLA (full load amps) ........................................................................... 18/9............................................ 4.7/5.7
Power Transfer ............................................................................................. belt................................................. belt
Motor Speed ...................................................................................... 1720 RPM............................... 1720/840 RPM
Sound Emission (tested at 3 ft. from machine):
Without loa d.......................................................................................... 75 dB............................................. 75 dB
With load ......................................................................................... 80-85 dB........................................ 80 -85 dB
Head and Spindle:
Spind le Taper ............................................................................................... R-8................................................. R-8
Quill Diameter ............................................................................................ 3-3/8”............................................. 3-3 /8”
Number of Spindle Speeds................................................................................ 5.................................................. 10
Range of Spindle Speeds ..................................................................... 240-1550........................................ 120-1550
Spindle Travel .................................................................................................5”................................................... 5 ”
Head Movement ...............................................................................90° L and R.................................... 90° L and R
Maximum Distance Spindle to Table ......................................................... 13-3/4”........................................... 1 3-3 /4”
Maximum Distance Spindle to Column ..................................................... 15-3/4”........................................... 15-3/4 ”
Minimum Distance Spindle to Column ........................................................ 5-1/4” ............................................. 5-1/4 ”
Collet Capacity ................................................................................... 1/8” – 7/8”.......................................1/8” – 7/8”
Ram Travel .............................................................................................. 10-1/2”........................................... 10-1 /2”
Ram Rotation ...................................................................................90° L and R.................................... 90° L and R
Table:
Table Size ................................................................................... 7-7/8 x 35-3/4”................................ 7-7/8 x 35-3/4”
Longitudinal Table Travel ......................................................................... 22-1/4”........................................... 22-1/4”
Table Cross Tra v el .................................................................................... 9-1/2” ............................................. 9-1/2”
T-Slots, Number ............................................................................................... 3.................................................... 3
T-Slots, Size ................................................................................................. 5/8”................................................ 5/8”
T-Slots, Spacing ........................................................................................ 2-1/2” ............................................. 2-1/2”
Table Weight Capacity .............................................................................. 500 lb............................................. 500 lb
Knee Travel ................................................................................................... 14”................................................. 14”
Dimensions:
Overall Dimensions, assembled ........................................... 55”W x 52”D x 77”H........................ 55”W x 52”D x 77”H
Shipping Dimensions ........................................................... 67”W x 56”D x 66”H........................ 67”W x 56”D x 66”H
Weights:
Net Weight (ap prox .) ............................................................................... 1617 lb........................................... 1610 lb
Shipping We ig ht (approx) ........................................................................ 1700 lb........................................... 1700 lb
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
6.0 JVM-836 Installation Layout
Figure 1
7
7.0 Setup and Assembly
7.1 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 T urret 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.
NOTE: Some parts shown below m ay have come preinstalled on the mill.
7.2 Contents of shipping container
Refer to Figure 2.
1 Turret Mill (not shown)
1 Flat Way Cover (rear)
1 Pleated Way Cover (front)
1 Knee Crank
1 Draw Bar
4 Handles
1 Tool Box, containing:
1 Hex Key Set (1.5-10mm)
1 17/19mm Box Wrench
1 Cross Point Screw Dri ver #2
1 Flat Blade Screw Driver #2
1 Plastic Oil Bottle
1 Handwheel
1 Adjustable Wrench
1 Operator’s Manual (not shown)
1 Warranty Card (not shown)
Figure 2: shipping contents
NOTE: If your mill is supplied with an optional Table Powerf eed and/or Digital Readout, be sure to consult the
separate instruction materials that accompany them.
8
7.3 Site preparation
The mill must be placed o n an even surface and
bolted to the floor. Anchor bolts of sufficient size
and length must be f astened to the f loor according
to the mill’s footprint. See the site installation
diagram in Figure 1.
Mill must be supported equally
under all four corners. Failure to comply may
cause the column to twist and put a bind in the
ways.
7.5 Completing assembly
7.4 Lifting the mill
Finish removing the sides of the crate. Leave mill
bolted to pallet until ready to move to its final
location.
The preferred method for lifting mill is with a hook
throug h the hoisti ng r i ng wh ich i s mou nt e d a top t he
ram. Steady the mill to prevent it from spinning.
An alternate method for lifting mill is with a sling.
Refer to Figure 3 for proper position of sling under
ram. Note position of ram and t hat table has been
moved against column. Tighten ram locking bolts
(A, Figure 3) before lifting.
(Note: If the mill head is already upright, skip to
step 5 below. Otherwise, begin with step 1.)
Before attempting to raise mill
head, familiarize yourself with instructions in
section 11.1, for procedures to sa fely raise a nd
set up the mill head.
1. Remove handwheel (A, Figure 4).
2. Loosen four hexagonal nuts (B, Figure 4)
about 1/2 turn each counterclockwise, just
enough to allow rotation of head. Do not
remove these nuts unless you are prepared to
remove the head.
3. Apply upward pressure on motor by hand to
relieve pressure on worm mechanism, and use
a 19mm socket and breaker bar to turn worm
nut (C, Figure 4) and raise head to upright
position.
4. Slightly tighten nuts (B , Figure 4); not torq ued,
just sn ug f or no w. Before operating mill, follow
procedures in section 11.1 to verify angle
settings and properly tighten the four nuts.
Figure 3: sling location
Keep people a safe distance
away while mill is being moved .
Carefully lift mill and move to a position over the
anchor bolts. Lower mill over anchor bolts and
check for leve l, with a machi nist’s level plac ed on
the table. Mill must be level back to fro nt and side
to side. Shim if necessary, but remember that mill
must be supported equally at all four corners.
Check for level before tightening anchor bolt nuts,
and check again after tightening them.
It is advisable when plac ing the mill on a concrete
floor to use grout (thin mortar) to correct any
unevenness in the concrete and provide a solid
foundation at all points.
Figure 4
5. Use mineral spirits, kerosene or ot her c leani ng
solve nt , to rem o ve all rust- p r oo fing from wher e
it may have been applied. This is important;
moving the table or any other components
before removing rust proofing will only put rust
proofing where you don’t want it. Do not use
gasoline, paint thinner, or lacquer thinner;
these will damage painted surfaces.
9
6. Lubricate exposed ways (see sect. 7.6), then
move each unit (table and ram) to the opposite
limit stop, and clean and lubricate the newly
exposed ways. Loosen bolts to unlock ram and
move it forward and backward to the full length
in order to clean and lubricate.
7. Cover all machined surfaces with a f ilm of light
machine tool oil to inhibit rust.
8. Remove wood block from below knee.
Some of the following steps may have already
been performed on the machi ne. If so, ignore the
instructions related to those particular steps.
Otherwise, perform them in the order listed.
9. Install the two table traverse handles and one
cross-feed handle on their respective shafts.
Tighten each handle using a wrench on the
flats.
10. Remove any rust proofing from drawbar. Install
drawbar with its washer into spindle center
through top of head assembly. When installing
tool into spindle, lock spindle and tighten
drawbar using provided wrench.
11. Slide the fine feed handwheel over the hub
and push it back until its roll pin engages hole
in hub, and handwheel is flush with hub
surface.
12. Place coarse feed handle on feed shaft,
alig ning rol l pin w ith a hole . Tap hand le lig htl y
until it is flush against hub surface.
13. Install elevating (knee) crank on its shaft.
Figure 5: lubrication
14. Install rubber way covers at front and behind
table.
7.6 Lubrication
Do not operate this milling
machine before fully lubricating it. Failure to
comply may damage machine.
Refer to Figure 5.
A. Spindle bearings – Fill oil cup once daily
with Mobil DTE® Oil Ligh t.
B. Oil Pump – Fill reservoir as needed by
removing cap on top of tank and filling with
Mobil Vactra Oil No. 2. Pump oil release
handle once for every hour of operation.
Way surfaces and leadscrews are
lubricated in this manner.
C. Knee Leadscrew – Lubricate with
Mobilith® AW2 once a week.
8.0 Electrical connections
All electrical connections
must be made by a qualified electrician in
compliance with all relevant codes. This
machine must be properly gr ounded. Fail ure to
comply may result in serious injury .
Confirm that power at the site matches power
requirements of the mill before connecting to power
source.
8.1 Conversion from 115V to 230V
(JVM-836-1 only )
To convert from 115V to 230V operation, remove
junction box cover on motor and change the wires
according to diagram found on inside of cover.
Similar diagrams are found in section 14.0 of thi s
manual. Note: If discrepancies arise, diagrams on
machine take precedence.
10
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 f or
branch circuits or electrical extension cords
according to the following table is recommended:
Conductor
Length
0 – 50 Ft. No. 14 No. 14
50 – 100 Ft. No. 14 No. 12
Over 100 Ft. No. 12 No. 8
230/460 Volt Lines 120 Volt Lines
AWG Number
Table 1
9.0 Controls
Refer to Figures 6 through 8:
A. Belt Cover Lock Knobs (A, Figure 6) –
Loosen and remove belt cover to change belt
pos ition on the pulleys.
I. Fine Feed Engagement (I, Figure 7) – Turn
clockwise until tight. This engages the manual
fine feed; counterclockwise to release.
J. Draw Bar (J, Figure 7) – Located at top of
head. This is used to tighten an R-8 collet or
R-8 tool into the quill. Tighten draw bar enough
to hold tool securely during milling operations.
K. Longitudinal Movement (K, Figure 8) –
Handles located on opposite ends of table.
This controls the X-axis.
L. Cross Movement (L, Figure 8) – Handle
located directly in front of machine. This
controls the Y-axis.
M. Knee Handle (M, Figure 8) – Raises the table
up and down.
N. Belt Tension Lever (N, Figure 6) – Slides
motor pulley to release tension on belt.
Disconnect mill from
power source before changing belt
position. Reinstall belt cover before
operating mill.
B. Spindle Brake (B, Figure 6) – Move in either
direction to stop spindle once power has been
turned off.
C. Coarse Feed Handle (C, Figure 6) – Rotate
counterclockwise to lower spindle. Return
spring will automatically retract spindle once
handle is released. Handle can be removed
when not in use.
D. Quill Lock (D, Figure 7) – Rotate handle
clockwise to lock quill in position; counterclockwise to release.
E. Micrometer Adjusting N ut (E, Fig ure 6) – For
setting specific spindle depth. Each graduation
on the nut represents 0.001” of depth, and
corresponds to the adjacent scale.
F. Manual Fine Feed Ha ndwheel (F, Figure 6) –
Must engage fine feed (I, Figure 7) for
handwheel to function.
G. Quill Stop (G, Figure 6) – Used in conjunction
with micrometer adjusting nut for
predetermined depth.
Figure 6: controls
Figure 7: controls
H. Reversing Switch (H, Figure 7) – Switches
rotation of spindle. For 3-phase motor, there is
an additional low and high-speed option.
11
Figure 8: controls
10.0 Operation
10.1 Precautions
Observe the following
instructions before using this mill.
1. Verify that spindle brake is released before
starting motor.
2. If using longitudinal table travel only, clamp
saddle and knee in place using the locking
handles; this will add rigidity and provide for
heav ier cuts w ith min imal vibrat ion. If not u s i ng
longitudinal travel, keep table locking handles
tightened.
3. On heavy milling work, keep head as close to
column as possible to obtain maximum rigidity.
Always tighten ram locking handles securely.
Figure 9
10.3 Changing speeds
1. Unscrew two knobs (A, Figure 7) a nd remove
belt cover.
2. Loosen hex nut (A, Figure 10).
3. Release tension from belt by moving lever (B,
Figure 10).
4. Move belt to desired position, by referring to
speed chart on the belt cover. (Chart also
fo und in section 12.0 of this manu al.)
5. Re-tension the belt using lever (B, Figure 10).
6. Tighten he x n ut.
7. Reinstall belt cover.
10.2 Clamping work piece to table
The table has 5/8-inch T-slots for clamping work
pieces to table.
1. Set switch to OFF position.
2. Place work piece on table.
3. Clamp w ork piece using T-slot clamps, studs,
and step blocks as required (Figure 9).
Figure 10: changing speeds
NOTE: The 3–phase motor has an additional high
and low-speed setting (H, Figure 7).
10.4 Fine feed
1. Engage fine feed by rotating knurled nut (I,
Figure 7) clockwise until tight. The handwheel
(F, Figure 6) can now be used to raise and
lower the spindle.
2. Disengage fine feed by rotating the knurled nut
counterclockwise.
12
Note: Due to variables in tool diameter, coatings,
coo lant, and materials, no specific spindle s peed or
feed rate recommendations are provided. Use
general shop manuals that have data applicable to
the milling and drilling operations being perf ormed;
or contact the supplier of the too ling, coolant, and
material for specific recommendations.
10.5 Draw bar operation; changing
tooling
The drawbar has 7/16”-20 rig ht hand threads a nd
should be tightened with normal pressure using the
provided wrench. To remove a tool:
1. Lock spindle by turning spindle brake (B,
Figure 6) left or right.
2. Use provided wrench to loosen draw bar two
or three turns (counterclockwise).
3. If collet does not open immediately, tap the top
of draw bar with a soft-faced hammer to
loosen collet from taper.
4. Remove tool from collet.
5. Insert new tool into collet.
6. Tighten draw bar firmly using provided wrench.
The tool is now ready for use.
Be sure to apply torq ue in
two steps using a crossi ng pattern. Failure
to do so could distort the face of the ram
adapter.
3. Tighten the four hex nuts. Tighten in two steps
using a calibrated torque wrench. Use a
crossing pattern to tighten the nuts. Tighten
initially to 25 foot-pounds.
7. Release spindle brake.
11.0 Adjustments
11.1 Head movement: left and right
Make sure machine base is
secured to floor before repositioning mill head.
The center of gravity can shift enough to ca use
machine to tip over, resulting i n serious injury
to operator and damage to machine.
1. Loosen four large hex nuts (A, Figure 11) that
secure mill head to ram adapter. O ne-quarter
(1/4) turn should be sufficient to allow head to
move.
NOTE: For angles greater than 10 degrees,
use your free hand to support mill head,
relieving weight off the brass worm gears.
Doing so will lengthen life of worm gears.
2. Turn worm nut (B, Figure 11) to tilt head left or
right as required. Use scale o n ram adapter to
establ ish angle.
NOTE: The scales on ram adapter and for
head rotation are guides only. Close tolerance
work will require use of a dial indicator to make
sure head is 90° to table in X and Y axes.
Please note the table is fitted to be slightly
higher in front, usually about 0.0005”.
Figure 11: head movement
4. Before applying final torque, check to make
sure mill head is perpendicular to worktable.
5. Set up a dial indicator in a collet (see Figure
11) and secure using draw bar.
6. Put spindle drive in neutral.
7. Set the dial indicator plunger on the worktable.
Zero indicator.
8. Rotate spindle 180 degrees (when rotating,
raise dial indicator plunger by hand to prevent
it from dropping into table T-slots).
9. Read dial indicator – it should read zero. If not,
loosen the four hex nuts and reposition mill
head.
10. Recheck perpendicularity using dial indicator.
Repeat the above procedure until dial indicator
reads zero in both positions.
11. Tighten the four hex nuts. Tighten in two steps
using a calibrated torque wrench. Use a
crossing pattern to tighten the nuts. Tighten
initially to 25 foot-pounds, then tighten to fi nal
torque of 50 foot-pounds. NOTE: Do not
overtighten, as it may cause binding of quill.
Be sure to apply torque in
two steps using a crossi ng pattern. Failure
to do so could distort the face of the ram
adapter.
13
11.2 Positioning ram
11.2.1 Sliding ram fore and aft
NOTE: When adjusting gibs, always start with the
knee first; adjust the saddle second, and adjust the
table last.
Care should be taken to lock
ram securely after setting.
1. Loosen two handles (A, Figure 12) that lock
ram to its ways.
Figure 12: Ram positioning
2. Turn handle (B, Figure 12) to move ram on its
ways.
3. When desired position is reached, tighten
handles (A) securely.
Note: It is recommended while performing heavy
milling work, that the head be left as close to the
face of turret as possible. Maximum rigidity is then
obtained.
11.3.1 Knee gib
Loosen the two knee locking handles. The knee
gib adjustment screw (A, Figure 13) is located
under the chip wiper at rear of knee where it
contacts the column. Remove way cover and wiper
to expose gib adjustment screw. Tighten screw
until slight drag is felt when turning knee crank.
11.3.2 Saddle gib
Loosen saddle locking handle. The saddle gib
adjustment screw is on the left front of saddle (B,
Figure 13). Tighten screw until slight drag is felt
when turning cross-feed crank.
11.3.3 Table gib
Loosen table locking handles. The table gib
adjustment screw (C, Fig ure 13) is o n the lef t-hand
side, beneath table. Tighten screw until slight drag
is felt when turning longitudinal table cranks.
11.2.2 Rotating ram on its turret
Make sure machine base is
secured to floor before r epositioning ram. The
center of gravity can shift enough to cause
machine to tip over, resulting i n serious injury
to operator and damage to machine.
1. Loosen four turret lock bolts (C, Figure 12).
One-half (1/2) turn should be sufficient to allow
turret to move.
Note: Use gentle hand pressure to avoid rapid
movement.
2. Turn ram until spindle is in desired position.
Use scale on turret to establish turn degree.
3. Tighten four turret lock bolts (C. Figure 12).
11.3 Gib adjustment
The table, saddle and knee are equipped with
adjustable gibs. The gibs may require adjustment if
unusual vibration is noted when locking
mechanisms are off, or if you experience unusual
vibration when spindle speed, tooth pitch or depth
of cut do not account for the vibration.
Figure 13: Gib locations
11.4 Ram wear plate adjustment
1. Loosen two hex nuts and adjust the two set
screws as needed (#19,19-1, sect. 13.4.1).
2. Use a dial indicator to m easure the amount of
movement in the ram. Adjust the wear plate
(#10, sect. 13.4.1) until the indicator reading is
within 0.003”.
3. Retighten hex nuts.
11.5 Table lead screw backlash
adjustment
Refer to Figure 14.
The milling machine table is moved by a lead
screw and nut for each machine axis. For proper
operation, there must be clearance between lead
screw and nut, which results in backlash. A second
feed screw nut is provided to eliminate most of the
backlash. The following procedures provide
instructions for obtaining acceptable backlash.
14
11.5.1 Cross feed backlash adjustment
11.5.2 Longitudinal backlash adjustment
Refer to Figure 14:
1. Use cross feed crank to move table to extreme
rear of its travel (toward column).
2. Remove pleated way cover.
3. Open the two chip guards (#77,78, sect.
13.4.1) enough to expose cross feed
adjustment nut (the nut toward rear of f eed nut
bracket is not adjustable; only front nut is
adjustable).
4. Loosen the two nut locking screws.
5. Turn nut slightly to tighten it aga inst opposing
nut.
6. Tighten the two nut locking screws.
7. Using cross feed c rank, move table to middle
position.
8. Set up a dial indicator to check cross feed
backlash. Gently move cross feed crank back
and forth while watching dial indicator.
Backlash should be between 0.003 inch and
0.005 inch.
9. If necessary, repeat the above steps.
10. Install pleated way cover.
Refer to Figure 14:
Only one of the longitudinal lead screw nuts can be
adjusted; the other nut is fixed. The left hand nut is
typically adjustable. This can be determined by
looking at nut from underside of table.
1. Loosen the two nut locking screws.
2. Turn the nut slightly to tighten it against the
opposing nut.
3. Tighten the two nut locking screws.
4. Using one of the longitudinal table cranks,
move table to middle position.
5. Set up a dial indicator to check longitudinal
backlash. Gently move crank back and forth
while watching dial indicator. The backlash
should be between 0.003 inch and 0.005 inch.
6. If necessary, repeat the above steps to set
backlash.
Figure 14: Lead screw backlash adjustment
15
12.0 Speed charts for JVM-836
The charts below are also found on the mill head of the respective models.
SINGLE PHASE ONLY 3-PHASE ONLY
Figure 15 Figure 16
13.0 Replacement Parts
Replacement parts are listed on the followi ng pages. To order parts or reach our service departm ent, call 1800-274-6848 Monday through Friday, 8:00 a.m. to 5:00 p.m. CST. Having the Model Number and Serial
Number of your machine available when you call will allow us to serve you quickly and accurately.
16
13.1.1 JVM-836 Head Assembly – Exploded View
17
13.1.3 JVM-836 Head Assembly – Parts List
Index No Part No Description Size Qty
1 ................ JVM836-01 ................ Castle Nut ................................................................ M12 ............................... 1
2 ................ JVM836-02 ................ Lock Nut................................................................... ...................................... 1
3 ................ TS-1523041 .............. Hex Socket Cap Screw ............................................ M6x12 ........................... 3
4. ............... JVM836-04 ................ Cover ....................................................................... ...................................... 1
5 ................ JVM836-05 ................ Taper Sleeve ........................................................... ...................................... 1
6 ................ JVM836-06 ................ Spring ...................................................................... ...................................... 1
7 ................ JVM836-07 ................ Transmission Sleeve (s/n 307XXXX and lower) ...... ...................................... 1
8 ................ JVM836-08 ................ Worm Gear (s/n XXX0049 and lower) ..................... ...................................... 1
.................. JVM836-08T.............. Worm Gear (s/n 0040050 and higher) ..................... ...................................... 1
8A .............. JVM836-08TN ........... Worm Gear (s/n 307XXXX and higher) ................... ...................................... 1
9 ................ JVM836-09 ................ Spring Washer (s/n 307XXXX and lower)................ M4 ................................. 3
10 .............. JVM836-10 ................ Cross Round Head Screw (s/n 307XXXX and lower) M4x16 ........................ 3
14 .............. JVM836-14 ................ Shaft (s/n XXX0049 and lower) ............................... ...................................... 1
.................. JVM836-14T.............. Shaft (s/n 0040050 and higher) ............................... ...................................... 1
15 .............. JVM836-15 ................ Key (s/n XXX0049 and lower).................................. 5x5x20 mm ................... 1
.................. JVM836-15T.............. Key (s/n 0040050 and higher) ................................. 5x 5x12 mm ................... 1
16 .............. JVM836-16 ................ Cross Flat Head Screw ............................................ M5x6 ............................. 1
17 .............. JVM836-17 ................ Whitney Key............................................................. ...................................... 1
18 .............. JVM836-18 ................ Volume Spring (s/n XXX0049 and lower) ................ ...................................... 1
.................. JVM836-18T.............. Volume Spring (s/n 0040050 and higher) ................ ...................................... 1
19 .............. JVM836-19 ................ Spring Bracket ......................................................... ...................................... 1
21 .............. JVM836-21 ................ Full Dog Point Set Screw ......................................... M8x35 ........................... 1
22 .............. TS-1514021 .............. Hex Socket Cap Screw ............................................ M6x15 ........................... 4
23 .............. JVM836-23 ................ Transmission Sleeve ............................................... ...................................... 1
24 .............. TS-1523031 .............. Set Screw ................................................................ M6x6 ............................. 1
25 .............. JVM836-25 ................ Round Pin ................................................................ ...................................... 1
26 .............. JVM836-26 ................ Handle Base (s/n XXXX0049 and lower) ................. ...................................... 1
.................. JVM836-26T.............. Handle Base (s/n 0040050 and higher) ................... ...................................... 1
.................. JVM836-26TA ........... Handle Assembly (includes # 26,30,31) .................. ...................................... 1
27 .............. SB-6MM .................... Steel Ball.................................................................. Ø6 ................................. 1
28 .............. JVM836-28 ................ Spring ...................................................................... ...................................... 1
29 .............. TS-1524011 .............. Set Screw ................................................................ M8x8 ............................. 1
30 .............. JVM836-30 ................ Rocket Rod (s/n XXX0049 and lower) ..................... ...................................... 1
.................. JVM836-30T.............. Rocket Rod (s/n 0040050 and higher) ..................... ...................................... 1
31 .............. JVM836-31 ................ Knob (s/n XXX0049 and lower) ............................... ...................................... 1
.................. JVM836-31T.............. Knob (s/n 0040050 and higher) ............................... ...................................... 1
32 .............. JVM836-32 ................ Flat Washer ............................................................. M8 ................................. 1
33 .............. JVM836-33 ................ Spring Washer ......................................................... M8 ................................. 1
34 .............. JVM836-34 ................ Hex Socket Cap Screw ............................................ M8x16 ........................... 1
35 .............. JVM836-35 ................ Worm (s/n XXX0049 and lower) .............................. ...................................... 1
.................. JVM836-35T.............. Worm (s/n 0040050 and higher) .............................. ...................................... 1
36 .............. JVM836-36 ................ Whitney Key............................................................. 4x4x16 mm ................... 1
37 .............. JVM836-37 ................ Worm Shaft .............................................................. ...................................... 1
38 .............. JVM836-38 ................ Full Dog Point Set Screw ......................................... M5x6 ............................. 1
39 .............. TS-1522011 .............. Set Screw ................................................................ M5x6 ............................. 1
40 .............. JVM836-40 ................ Bushing (s/n XXX0049 and lower) ........................... ...................................... 1
.................. JVM836-40T.............. Bushing (s/n 0040050 and higher)........................... ...................................... 1
41 .............. JVM836-41 ................ Spring Pin (s/n 307XXXX and lower) ....................... Ø3x14 mm .................... 1
42 .............. JVM836-42 ................ Worm (s/n XXX0049 and lower) .............................. ...................................... 1
.................. JVM836-42T.............. Worm (s/n 307XXXX and lower) .............................. ...................................... 1
43 .............. JVM836-43 ................ Shaft (s/n XXX0049 and lower) ............................... ...................................... 1
.................. JVM836-43T.............. Shaft (s/n 0040050 and higher) ............................... ...................................... 1
.................. JVM836-43TN ........... Shaft (s/n 307XXXX and higher).............................. ...................................... 1
44 .............. JVM836-44 ................ Flat Key.................................................................... 4x 4x12 mm ................... 1
45 .............. JVM836-45 ................ Bushing (s/n XXX0049 and lower) ........................... ...................................... 1
.................. JVM836-45T.............. Bushing (s/n 0040050 and higher)........................... ...................................... 1
46 .............. JVM836-46 ................ Spacer ..................................................................... ...................................... 1
47 .............. JVM836-47 ................ C-Retaining Ring ..................................................... ...................................... 1
48 .............. JVM836-48 ................ Wheel....................................................................... ...................................... 1
18
Index No Part No Description Size Qty
52 .............. JVM836-52 ................ Hand Grip ................................................................ ...... ................................ 1
53 .............. TS-1523041 .............. Set Screw ................................................................ M6x10 ........................... 1
54 .............. JVM836-54 ................ Locating Block ......................................................... ...................................... 1
55 .............. JVM836-55 ................ Hex Socket Cap Screw ............................................ 3/8-24UNF .................... 1
56 .............. JVM836-56 ................ Graduated Ring ....................................................... ...................................... 1
57 .............. JVM836-57 ................ Graduated Tight Nut ................................................ ...................................... 1
58 .............. JVM836-58 ................ C-Retaining Ring ..................................................... ...................................... 1
59 .............. JVM836-59 ................ Screw ....................................................................... ...................................... 1
60 .............. JVM836-60 ................ Graduated Scale ...................................................... ...................................... 1
62 .............. TS-1523041 .............. Set Screw ................................................................ M6x12 ........................... 2
63 .............. JVM836-63 ................ Tight Collar .............................................................. ..... ................................. 1
64 .............. JVM836-64 ................ Tight Collar .............................................................. ..... ................................. 1
65 .............. JVM836-65 ................ Flexible Handle ........................................................ ...................................... 1
66 .............. JVM836-66 ................ T-Head Bolt.............................................................. ...................................... 4
67 .............. JVM836-67 ................ Sleeve Pipe.............................................................. ...................................... 4
68 .............. JVM836-68 ................ Castle Nut ................................................................ ...................................... 4
69 .............. JVM836-69 ................ Rack Sleeve (s/n xxx0049 and lower) ..................... ...................................... 1
.................. JVM836-69T.............. Rack Sleeve (s/n 0040050 to 0050103) .................. ...................................... 1
.................. JVM836-69TN ........... Rack Sleeve (s/n: 0050104 and higher) .................. ...................................... 1
69-1 ........... JVM836-69T-1 .......... C-Clip ....................................................................... R62 ............................... 1
70 .............. JVM836-70 ................ Cone point Set Screw .............................................. M5x5 ............................. 1
71 .............. JVM836-71 ................ Taper Roller Bearing................................................ 30206 ............................ 1
71-1 ........... JVM836-71-1............. Taper Roller Bearing................................................ 32008 ............................ 1
72 .............. JVM836-72 ................ Nut (s/n xxx0049 and lower) .................................... ...................................... 1
.................. JVM836-72T.............. Nut (s/n 0040050 and higher) .................................. ...................................... 2
.................. JVM836-72TA ........... Nut Assembly (includes # 72,83,98) ........................ ...................................... 1
79 .............. JVM836-79 ................ Protection Ring ........................................................ ...................................... 1
80 .............. JVM836-80 ................ Protection Cover (s/n xxx0049 and lower) ............... ...................................... 1
.................. JVM836-80T.............. Protection Cover (s/n 0040050 and higher) ............. ...................................... 1
81 .............. JVM836-81 ................ Spindle Shaft .......................................................... ...................................... 1
82 .............. JVM836-82 ................ Full Dog Point Set Screw ......................................... M6x6 ............................. 1
83 .............. TS-1522011 .............. Set Screw ................................................................ M5x6 ............................. 1
84 .............. JVM836-84 ................ Stud ......................................................................... M12x50 ......................... 3
85 .............. JVM836-85 ................ Spring Washer ......................................................... M12 ............................... 3
86 .............. TS-1540081 .............. Hex Nut .................................................................... M12 ............................... 3
87 .............. JVM836-87 ................ Limit Plate ................................................................ ...................................... 1
88 .............. JVM836-88 ................ Rivet ........................................................................ Ø2 ................................. 5
89 .............. JVM836-89 ................ Stop Block (s/n xxx0049 and lower) ........................ ...................................... 1
.................. JVM836-89T.............. Stop Block (s/n 0040050 and higher) ...................... ...................................... 1
90 .............. TS-1523041 .............. Set Screw ................................................................ M6x12 ........................... 1
91 .............. TS-1540041 .............. Hex. Nut ................................................................... M6 ................................. 1
92 .............. TS-41490011 ............ Hex. Screw .............................................................. M8x12 ........................... 1
93 .............. JVM836-93 ................ Oil Cup ..................................................................... 1/16”PS ......................... 1
94 .............. JVM836-94 ................ Head Body (s/n xxx0049 and lower) ........................ ...................................... 1
.................. JVM836-94T.............. Head Body (s/n 0040050 and higher) ...................... ...................................... 1
95 .............. JVM836-95 ................ Cross Round Cap Screw ......................................... M5x6 ............................. 2
96 .............. JVM836-96 ................ Plate......................................................................... ...................................... 1
97 .............. JVM836-97 ................ Cover ....................................................................... ...................................... 1
102 ............ JVM836-102 .............. Set Screw ................................................................ M5x6 ............................. 1
19
13.2.1 JVM-836 Upper Head Assembly – Exploded View
20
13.2.2 JVM-836 Upper Head Assembly – Parts List
Index No Part No Description Size Qty
2 ................ VM-G22-1.................. Spacer ..................................................................... ... ................................... 1
3 ................ VM-G22 ..................... Draw Bar .................................................................. ...................................... 1
4 ................ VM-M3-1 ................... Knob (s/n XXX0049 and lower) ............................... ...................................... 1
.................. VM-M3-1T ................. Knob (s/n 0040050 and higher) ............................... ...................................... 1
5 ................ VM-M3-3 ................... Brake Handle (s/n XXX0049 and lower) .................. ...................................... 1
.................. VM-M3-3T ................. Brake Handle (s/n 0040050 and higher) .................. ...................................... 1
9 ................ VM-M11-1 ................. Nut ........................................................................... ...................................... 1
10 .............. TS-1514021 .............. Hex Head Socket Screw .......................................... M6x16 ........................... 6
11 .............. VM-M4....................... Fixed Cover (s/n XXX0049 and lower) .................... ...................................... 1
.................. VM-M4T .................... Fixed Cover (s/n 0040050 and higher) .................... ...................................... 1
12 .............. VM-M3-5 ................... Brake Rod (s/n XXX0049 and lower) ....................... ...................................... 1
.................. VM-M3-5T ................. Brake Rod (s/n 0040050 and higher)....................... ...................................... 1
13 .............. BB-6007ZZ ................ Ball Bearing ............................................................. 6007zz .......................... 1
14 .............. VM-M2....................... Brake (s/n XXX0049 and lower) .............................. ...................................... 1
.................. VM-M2T .................... Brake (s/n 0040050 and higher) .............................. ...................................... 1
.................. VM-M2TA .................. Brake Assembly (includes #14,15,48,49) ................ ...................................... 1
15 .............. VM-M1....................... Screw (s/n XXX0049 and lower) .............................. ...................................... 1
.................. VM-M1T .................... Screw (s/n 0040050 and higher).............................. ...................................... 1
16 .............. VM-M6....................... Brake Disc ............................................................... ...................................... 1
17 .............. VM-M8....................... Pulley ....................................................................... ...................................... 1
18 .............. VM-M11..................... Splined Shaft ........................................................... ...................................... 1
19 .............. VM-M7....................... Whitney Key............................................................. 6x6x16 mm ................... 1
20 .............. VM-M9....................... Whitney Key............................................................. 6X6X32 mm .................. 1
21 .............. BB-6007ZZ ................ Ball Bearing ............................................................. 6007zz .......................... 1
22 .............. VM-M5....................... C-Retaining Ring ..................................................... Ø62 mm ........................ 1
23 .............. VM-M25C .................. Motor (s/n XXX0049 and lower)............................... (1-1/2HP 1 Ph) .............. 1
.................. VM-M25C-3Ph .......... Motor (s/n XXX0049 and lower)............................... (1-1/2HP 3 Ph) .............. 1
.................. VM-M25..................... Motor (s/n 0040050 to 2110610) ............................. (1-1 /2HP 1 Ph) .............. 1
.................. VM-M25-3Ph ............. Motor (s/n 0040050 to 2110610) ............................. (1-1/2HP 3 Ph) .............. 1
.................. VM-M25N .................. Motor (s/n 2120611 and higher) .............................. (1-1/2HP 1 Ph) .............. 1
.................. VM-M25N-3Ph .......... Motor (s/n 2120611 and higher) .............................. (1-1/2HP 3 Ph) .............. 1
.................. VM-M25CS................ Centrifugal Switch (not shown) ................................ ...................................... 1
.................. VM-M25RC ............... Running Capacitor (not shown) ............................... 25μF 350VAC ............... 1
.................. VM-M25SC................ Starting Capacitor ( not shown) ................................ 350MFD 350VAC .......... 1
24 .............. VM-M21..................... Hex Head Screw ...................................................... M10x 25 ......................... 4
25 .............. VM-M25-1 ................. Flat Key.................................................................... 8x7x36 mm ................... 1
26 .............. VM-M19..................... Pulley (s/n 2110610 and lower) ............................... ...................................... 1
.................. VM-M19N .................. Pulley (s/n 2120611 and higher) .............................. ...................................... 1
27 .............. TS-1524011 .............. Set Screw ................................................................ M8x8 ............................. 1
28 .............. VM-M20..................... Motor Cover (s/n XXX0049 and lower) .................... ...................................... 1
.................. VM-M20T .................. Motor Cover (s/n 0040050 to 2110610) ................... ...................................... 1
.................. VM-M20TN ................ Motor Cover (s/n 2120611 and higher) .................... ...................................... 1
29 .............. VM-M3....................... Rod (s/n XXX0049 and lower) ................................. ...................................... 1
.................. VM-M3T .................... Rod (s/n 0040050 and higher) ................................. ...................................... 1
30 .............. VM-M3-1 ................... Knob (s/n XXX0049 and lower) ............................... ...................................... 1
.................. VM-M3-1T ................. Knob (s/n 0040050 and higher) ............................... ...................................... 1
31 .............. JVM836-31B ............. Cross Flat Head Screw ............................................ M6x6 ............................. 3
32 .............. VM-M12-2 ................. Cover ....................................................................... ...................................... 1
33 .............. VM-M12..................... Pulley Housing ......................................................... ...................................... 1
34 .............. VM-M12-1 ................. Cover ....................................................................... ...................................... 1
35 .............. VM-DM85 .................. Plum Knob (s/n 0040049 and lower) ....................... ...................................... 2
.................. JVM836-31B ............. Cross Flat Screw (s/n 0040050 and higher) ............ M6x6 ............................. 2
36 .............. TS-1540081 .............. Hex Nut .................................................................... M12 ............................... 1
37 .............. TS-1550081 .............. Flat Washer ............................................................. M12 ............................... 1
38 .............. VM-M23-1 ................. Stud ......................................................................... M12x 50 ......................... 1
39 .............. TS-1540081 .............. Hex Nut .................................................................... M12 ............................... 2
40 .............. TS-1550081 .............. Flat Washer ............................................................. M12 ............................... 1
41 .............. VM-M23-1 ................. Stud ......................................................................... M12x 50 ......................... 1
42 .............. JVM836-42B ............. Switch Assembly (1Ph) ............................................ ...................................... 1
.................. JVM836-42-3Ph ........ Switch Assembly (3Ph) ............................................ ...................................... 1
21
Index No Part No Description Size Qty
43 .............. JVM836-43B ............. Hex Socket Cap Screw ............................................ M6x 8 ............................. 4
44 .............. JVM836-44B ............. Switch Cord (4C, 1Ph) ............................................. ...................................... 1
.................. JVM836-44-3Ph ........ Switch Cord (7C, 3Ph) ............................................. ...................................... 1
45 .............. VB-A29 ...................... Belt........................................................................... A29................................ 1
46 .............. VM-M26-1PH ............ Spindle Speed Chart (1 Phase) ............................... ...................................... 1
.................. VM-M26-3PH ............ Spindle Speed Chart (3 Phase) ............................... ...................................... 1
48 .............. VM-M2-1 ................... Spring ...................................................................... ...................................... 2
49 .............. VM-M2-2 ................... Cross Round Cap Screw ......................................... ...................................... 2
50 .............. JVM836-U50 ............. Plastic Electrical Box ............................................... ...................................... 1
51 .............. JVM836-U51 ............. Cross Round Cap Screw ......................................... M5x40L ......................... 2
52 .............. JVM836-N01 ............. JET Label................................................................. ...................................... 1
22
13.3.1 JVM-836 Leadscrew Assembly – Exploded View
23
13.3.2 JVM-836 Leadscrew Assembly – Parts List
Index No Part No Description Size Qty
1 ................ VM-I1......................... Castle Nut ................................................................ M12 ............................... 3
2 ................ VM-I2......................... Handle ..................................................................... ...................................... 3
3 ................ VM-I2-1 ..................... Ball Handle .............................................................. ...................................... 3
4 ................ VM-I3......................... Knurled Nut (s/n XXX0049 and lower) ..................... ...................................... 3
.................. VM-I3T ...................... Knurled Nut (s/n 0040050 and higher)..................... ...................................... 3
5 ................ VM-I5......................... Dial (s/n XXX0049 and lower).................................. ...................................... 3
.................. VM-I5T ...................... Dial (s/n 0040050 and higher) ................................. ...................................... 3
6 ................ VM-I24....................... Dial Holder (s/n XXX0049 and lower) ...................... ...................................... 2
.................. VM-I24T .................... Dial Holder (s/n 0040050 and higher) ...................... ...................................... 2
.................. VM-I24TA .................. Dial Holder Assembly (includes #4,5,6,30) .............. ...................................... 1
7 ................ VM-I6......................... Dial Holder (s/n XXX0049 and lower) ...................... ...................................... 1
.................. VM-I6T ...................... Dial Holder (s/n 0040050 and higher) ...................... ...................................... 1
.................. VM-I6TA .................... Dial Holder Assembly (includes #4,5,7,30) .............. ...................................... 1
8 ................ VM-I8......................... Bearing Retaining Cover.......................................... ...................................... 2
9 ................ TS-1515011 .............. Hex Socket Screw ................................................... M8x16 ........................... 6
10 .............. VM-M26..................... Limit Plate ................................................................ ...................................... 3
11 .............. VM-M26-1 ................. Rivet......................................................................... Ø12 mm ........................ 6
12 .............. BB-6204 .................... Ball Bearing ............................................................. 6204 .............................. 5
14 .............. VM-I14....................... Bearing Bracket ....................................................... ...................................... 1
15 .............. VM-I18....................... Bearing Bracket ....................................................... ...................................... 1
16 .............. VM-J11 ...................... Bearing Block........................................................... ...................................... 1
17 .............. VM-I13....................... Hex Socket Screw ................................................... M10x 16 ......................... 8
18 .............. VM-I12....................... Taper Pin ................................................................. Ø8x130 mm .................. 6
19 .............. TS-1515021 .............. Hex Socket Screw ................................................... M8x20 ........................... 4
20 .............. JVM836-20B ............. Flat Screw ................................................................ M6x6 ............................. 2
21 .............. VM-I4......................... Whitney Key............................................................. 3x3x28 mm ................... 3
22 .............. VM-J16 ...................... Lead Screw (s/n 2010471 and lower) ...................... ...................................... 1
.................. VM-J16T.................... Lead Screw (s/n 2020472 and higher)..................... ...................................... 1
23 .............. VM-I15....................... Lead Screw (s/n 2010471 and lower) ...................... ...................................... 1
.................. VM-I15T .................... Lead Screw (s/n 2020472 and higher)..................... ...................................... 1
24 .............. VM-J28 ...................... Feed Nut Bracket .................................................... ...................................... 1
25 .............. VM-J26-1................... Feed Screw Nut (s/n 2010471 and lower) ............... ...................................... 1
.................. VM-J26-1T ................ Feed Screw Nut (s/n 2020472 and higher) .............. ...................................... 1
26 .............. VM-J26 ...................... Feed Screw Nut (s/n 2010471 and lower) ............... ...................................... 1
.................. VM-J26T.................... Feed Screw Nut (s/n 2020472 and higher) .............. ...................................... 1
27 .............. TS-1514021 .............. Hex Socket Screw ................................................... M6x16 ......................... 14
28 .............. VM-J25-1................... Feed Screw Nut (s/n 2010471 and lower) ............... ...................................... 1
.................. VM-J25-1T ................ Feed Screw Nut (s/n 2020472 and higher) .............. ...................................... 1
29 .............. VM-J25 ...................... Feed Screw Nut (s/n 2010471 and lower) ............... ...................................... 1
.................. VM-J25T.................... Feed Screw Nut (s/n 2020472 and higher) .............. ...................................... 1
30 .............. JVM836-T30.............. Spacer ..................................................................... ...................................... 3
.................. JVM836-I2A .............. Washer with Keyway (not shown)............................ ...................................... 3
24
13.4.1 JVM-836 Base Assembly – Exploded View
25
13.4.2 JVM-836 Base Assembly – Parts List
Note: Some index numbers in this parts list have two part numbers. If your m illing machine has the serial
number 0040050 and higher, use the part number ending with a “T.” If your milling machine has the serial
number xxx0049 and lower, use the part number without the letter “T.”
Index No Part No Description Size Qty
1 ................ VM-L11...................... Worm Gear (s/n XXX0049 and lower) ..................... ...................................... 1
.................. VM-L11T ................... Worm Gear (s/n 0040050 and higher) ..................... ...................................... 1
2 ................ VM-L13...................... Taper Pin ................................................................. Ø8x150 ......................... 1
3 ................ TS-1505031 .............. Hex Socket Screw ................................................... M10x25 ......................... 3
4 ................ VM-L10...................... Graduated Dial......................................................... ...................................... 1
4-1 ............. VM-L10-1 .................. Graduated Dial Plate ............................................... ...................................... 1
5 ................ VM-L9........................ Taper Pin ................................................................. Ø8x 130 ......................... 2
6 ................ TS-1515011 .............. Hex Socket Screw ................................................... M8x16 ........................... 8
7 ................ VM-L15...................... Ram ......................................................................... ...................................... 1
8 ................ JVM836-08B ............. Eye Bolt ................................................................... M16 ............................... 1
9 ................ VM-L6........................ Turret ....................................................................... ...................................... 1
10 .............. VM-L5........................ Turret Gib................................................................. ...................................... 1
11 .............. VM-L1-1 .................... Knob (s/n XXX0049 and lower) ............................... ...................................... 1
.................. VM-L1-1T .................. Knob (s/n 0040050 and higher) ............................... ...................................... 1
12 .............. VM-L1........................ Handle (s/n XXX0049 and lower) ............................ ...................................... 1
.................. VM-L1T ..................... Handl e (s/n 0040050 and higher) ............................ ...................................... 1
13 .............. VM-L3........................ Pinion Shaft (s/n XXX0049 and lower) .................... ...................................... 1
.................. VM-L3T ..................... Pinion Shaft (s/n 0040050 and higher) .................... ...................................... 1
.................. VM-L3TA ................... Pinion Shaft Assembly (includes #11,12,13) ........... ...................................... 1
14 .............. VM-L2........................ Full Dog Point Set Screw ......................................... M6x12 ........................... 1
16 .............. TS-1550081 .............. Flat Washer ............................................................. M12 ............................... 4
17 .............. VM-K12 ..................... Stud (serial # 0040063 & lower) .............................. M12x105 ....................... 4
17 .............. VM-K12N................... Stud (serial # 0040064 & higher) ............................. M12x115 ....................... 4
18 .............. JVM836-18B ............. Adjustable Screw ..................................................... ...................................... 6
19 .............. TS-1523021 .............. Set Screw ................................................................ M6x10 ........................... 2
19-1 ........... TS-1540041 .............. Hex Nut .................................................................... M6 ................................. 2
20 .............. VM-L4........................ Lock Handle ............................................................. M10x40 ......................... 5
20-1 ........... VM-L4-1 .................... Shoe ........................................................................ ...................................... 2
21 .............. VM-L7........................ Graduated Scale ...................................................... ...................................... 1
22 .............. VM-L7-1 .................... Rivet......................................................................... Ø2 mm .......................... 7
23 .............. VM-K11 ..................... Spider Arm .............................................................. ...................................... 1
24 .............. VM-K9 ....................... Base......................................................................... ...................................... 1
25 .............. VM-K17 ..................... Limit plate ................................................................ ...................................... 2
26 .............. VM-K5 ....................... Plate......................................................................... ...................................... 1
27 .............. JVM836-27B ............. Cross Flat Screw ..................................................... M6x6 ........................... 22
.................. JVM836-27BT ........... Cross Round Cap Screw ......................................... M5x12 ........................... 6
28 .............. VM-K13 ..................... Plate......................................................................... ...................................... 2
29 .............. JVM836-29 ................ Hex Socket Screw ................................................... M8x12 ........................... 2
30 .............. VM-H29 ..................... Elev ating Nut ........................................................... ...................................... 1
31 .............. TS-1523051 .............. Set Screw ................................................................ M6x15 ........................... 1
32 .............. VM-H30 ..................... Elevation Screw Stand............................................. ...................................... 1
33 .............. VM-H30-1 .................. Hex Socket Screw ................................................... M10x30 ......................... 2
34 .............. VM-K2 ....................... Strainer Net.............................................................. ...................................... 2
34-1 ........... VM-H34-1 .................. Screw ....................................................................... M5x 12 ........................... 4
35 .............. VM-I37....................... Table ........................................................................ ...................................... 1
36 .............. VM-I40....................... Oil Plug .................................................................... 3/8”PT ........................... 2
38 .............. VM-I33-2 ................... Hex Socket Screw ................................................... M8x20 ........................... 2
39 .............. VM-I33....................... Stop Ring ................................................................. ...................................... 2
40 .............. VM-I33-1 ................... T-Nut ........................................................................ ...................................... 2
41 .............. VM-C-100 .................. Rear Way Cover (Pl astic) ........................................ ...................................... 1
42 .............. VM-H32 ..................... Wiper ....................................................................... ...................................... 3
43 .............. VM-H32-1 .................. Wiper ....................................................................... ...................................... 3
44 .............. VM-J36 ...................... Saddle...................................................................... ...................................... 1
45 .............. VM-I32....................... Table Gib ................................................................. ...................................... 1
46 .............. VM-J39-1................... Shoe ........................................................................ ...................................... 2
26
Index No Part No Description Size Qty
47 .............. VM-J20 ...................... Saddle Gib ............................................................... ...................................... 1
48 .............. VM-J30 ...................... Table Stop Bracket .................................................. ...................................... 1
49 .............. TS-1515021 .............. Hex Socket Cap Screw ............................................ M8x20 ........................... 2
50 .............. VM-J29-1................... Shoe ........................................................................ ...................................... 2
51 .............. VM-C-101 .................. Accordion Way Cover (Plastic) ................................ ...................................... 1
52 .............. VM-H35 ..................... Kn ee ........................................................................ ...................................... 1
53 .............. VM-H34 ..................... Knee Gib .................................................................. ...................................... 1
55 .............. TS-1540081 .............. Hex Nut .................................................................... M12 ............................... 2
56 .............. VM-H19 ..................... Spring Washer ......................................................... M12 ............................... 2
57 .............. TS-1550081 .............. Flat Washer ............................................................. M12 ............................... 2
58 .............. VM-H17 ..................... Straight Bevel Gear (s/ n XXX0049 and lower) ........ ...................................... 1
.................. VM-H17T ................... Helical Bevel Gear (s/n 0040050 and higher) .......... ...................................... 1
59 .............. TS-1523031 .............. Set Screw ................................................................ M6x6 ............................. 1
60 .............. BB-6204 .................... Ball Bearing ............................................................. 6204 .............................. 2
61 .............. VM-H6 ....................... Whitney Key............................................................. 5x5x16 mm ................... 3
62 .............. VM-H12 ..................... Sh aft ....................................................................... ...................................... 1
.................. VM-H12T ................... Shaft ....................................................................... ...................................... 1
63 .............. VM-H11 ..................... Bearing Block .......................................................... ...................................... 1
64 .............. TS-1514021 .............. Hex Socket Screw ................................................... M6x16 ........................... 3
65 .............. VM-H7 ....................... C-Retain ing Ring ..................................................... Ø47 mm . ....................... 1
66 .............. VM-H5 ....................... Dial Holder ............................................................... ...................................... 1
.................. VM-H5T ..................... Dial Holder ............................................................... ...................................... 1
.................. VM-H5TA .................. Dial Holder Assembly (includes #66,67,68,69,71,90) ..................................... 1
67 .............. VM-H3 ....................... Dial........................................................................... ...................................... 1
.................. VM-H3T ..................... Dial........................................................................... ...................................... 1
68 .............. VM-H2 ....................... Knurled Nut .............................................................. ...................................... 1
.................. VM-H2T ..................... Knurled Nut .............................................................. ...................................... 1
69 .............. VM-H4 ....................... Clutch Insert............................................................. ...................................... 1
.................. VM-H4T ..................... Clutch Insert............................................................. ...................................... 1
71 .............. VM-H1 ....................... Hand Lever .............................................................. ...................................... 1
.................. VM-H1T ..................... Hand Lever .............................................................. ...................................... 1
73 .............. VM-H1-3 .................... Hand Grip ................................................................ ...................................... 1
74 .............. VM-H24 ..................... Straight Bevel Gear (s/ n XXX0049 and lower) ........ ...................................... 1
.................. VM-H24T ................... Helical Bevel Gear (s/n 0040050 and higher) .......... ...................................... 1
75 .............. BB-6204 .................... Ball Bearing (s/n 0070226 and lower)...................... 6204 .............................. 2
.................. BB-51104 .................. Thrus t Bearing (s/n 0080227 and higher) ................ 51104 ............................ 2
76 .............. VM-H27 ..................... Elevating Screw ....................................................... ...................................... 1
76-1 ........... VM-H27-1 .................. Bushing (s/n 0080227 and higher)........................... ...................................... 1
77 .............. VM-J37-1................... Upper Chip Guard.................................................... ...................................... 1
78 .............. VM-J37 ...................... Lower Chip Guard.................................................... ...................................... 1
79 .............. VM-H25 ..................... Bearing Housing (s/n 0070226 and lower) .............. ...................................... 1
.................. VM-H25T ................... Bearing Housing (s/n 0080227 and higher) ............. ...................................... 1
79-1 ........... VM-H25-1 .................. Adaptor (s/n 0040050 and higher) ........................... ...................................... 1
79-2 ........... JVM836-B79-2 .......... Key (s/n 0040050 and higher) ................................. 5x 5x10 mm ................... 1
80 .............. TS-1514031 .............. Hex Socket Cap Screw ............................................ M6x20 ........................... 3
81 .............. JVM836-B81 ............. C-Clip ....................................................................... S47.. .............................. 1
82 .............. VM-I39....................... Rubber T-Nut ........................................................... ...................................... 6
83 .............. JVM836-B83 ............. Key .......................................................................... 3x3x2 8 mm ................... 1
84 .............. JVM836-B84 ............. Cross Round Cap Screw ......................................... M6x10 ........................... 6
85 .............. JVM836-B85 ............. Cross Round Cap Screw ......................................... M6x12 ........................... 7
86 .............. JVM836-B86 ............. Lock Handle ............................................................. M10x20 ......................... 2
89 .............. JVM836-B89 ............. Spacer (s/n 0070226 and lower).............................. ...................................... 1
90 .............. JVM836-B90 ............. Spacer ..................................................................... ...................................... 1
91 .............. JVM836-B91 ............. Oil Block................................................................... 1/4” ................................ 1
27
13.5.1 JVM-836 One Shot Lubrication System – Exploded View
13.5.2 One Shot Lubrication System – Parts List
Index No Part No Description Size Qty
1 ................ JVM836-HP ............... Hand Oiling Pump.................................................... ...................................... 1
2 ................ JVM836-ALMP .......... Aluminum Pipe......................................................... Ø4 ................................. 1
3 ................ JVM836-DB ............... Oil Regulating Distributor ......................................... ...................................... 1
4 ................ JVM836-TJ ................ T-Joint ...................................................................... Ø4 ................................. 1
5 ................ JVM836-FST ............. Flexible Steel Tube .................................................. ...................................... 1
6 ................ JVM836-CJ ............... Check Join t .............................................................. Ø4-1/8PT ...................... 2
7 ................ JVM836-EJ................ Elbow Joint .............................................................. Ø4-1/8PT ...................... 2
10 .............. TS-1514021 .............. Hex Socket Cap Screw ............................................ M6x16 ........................... 4
11 .............. TS-1503061 .............. Hex Socket Cap Screw ............................................ M6x25 ........................... 2
12 .............. TS-1502061 .............. Hex Socket Cap Screw ............................................ M5x25 ........................... 1
28
14.0 Electrical Connections for JVM-836
29
This page intentionally left blank.
30
This page intentionally left blank.
31
427 New Sanford Road
LaVergne, Tennessee 37086
Phone: 800-274-6848
www.jettools.com
32
Loading...