JET JVM-836-1 Operating Instructions and Parts Manual

.JET

EQUIPMENT& TOOLS

OPERATOR'S MANUAL

JVM-836 Milling Machine

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JET EQUIPMENT & TOOLS, INC.

A WMH Company
www.jettools.com

P.O. BOX 1349

Auburn, WA 98071-1349

e-mail [e-mail]

253-351-6000

Fax [phone]

M-690036 5/00

Important Information

1-YEAR

LIMITED WARRANTY

JET offers a one-year limited

warranty on this product

REPLACEMENT PARTS

Replacementparts for this tool are available directly form JET Equipment& Tools.
To place an order,call 1-800-274-6848. Pleasehave the followinginformation ready:

1. Visa, MasterCard,or DiscoverCard number

2. Expirationdate

3. Part number listed within this manual

4. Shipping address other than a PostOfficebox.

REPLACEMENT PART WARRANTY

JET Equipment & Tools makes every effort to assure that parts meet high quality and durability

standards and warrants to the original retailconsumer/purchaserof our parts that each such part(s)
to be free from defects in materialsand workmanshipfor a period of thirty (30)days from the date of
purchase.

"P~O~.E.c)FPDRCHASE

Please retainyour dated sales receiptas proof of purchase to validate the warranty period.

LJMITEDTOOL AND EQUIPMENTWARRANTY

JET makes eVeryeffort to assure that its products meet high quality and durability standards and warrants to
the original retailconsumer/purchaserof our products that each product be free from defects in materialsand
workmanship as follows: 1 YEAR LIMITED WARRANTYON THIS JET PRODUCT. Warranty does not apply
to defects due directly or indirectlyto misuse, abuse,negligence or accidents, repairs or alterations outside our

facilities or to a lack of maintenance. JET LIMITSALL IMPLIEDWARRANTIESTO THE PERIOD SPECIFIED
ABOVE FROM THE DATETHE PRODUCT WAS PURCHASED AT RETAIL. EXCEPT AS STATEDHEREIN,

ANY IMPLIEDWARRANTIES OR MECHANTABILITYAND FITNESS ARE EXCLUDED. SOME STATESDO
NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS, SO THE ABOVE
LIMITATIONMAY NOT APPLY TO YOU. JET SHALL IN NO EVENT BE LIABLE FOR DEATH,INJURIESTO
PERSONS OR PROPERY 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
LIMITATIONOR EXCLUSION MAY NOT APPLYTO YOU. To take advantage of this warranty,the product or
part must be returned for examination, postage prepaid, to an authorized service station designated by our

Auburn office. Proof of purchase date and an explanation of the complaint must accompany the merchandise.

If our inspectiondiscloses a defect, JETwill either repair or replacethe product or refundthe purchase price, if
we cannot readilyand quickly providea repairor replacement,if you arewilling to accept such refund. JET will
return repaired product or replacement at JET's expense, but if it is determined there is no defect, or that the

defect resultedfrom causes not within the scope of JET's warranty,then the user must bearthe cost of storing
and returning the product. This warranty gives you specificlegal rights,and you have other rights,which vary,

from state to state.

JET Equipment &Tools. P.O.Box 1349, Auburn, WA98071-1349 . [phone]

it WARNING

1. Read and understand the entire
instruction manual before attempting

set-up or operation of this machine.

2. Always wear approved safety
glasses/face shields while usingthis

machine.

3. Makecertain the machine is properly
grounded.

4. Beforeoperating the machine, remove
tie, rings, watches, otherjewelry, and roll
up sleeves above the elbows. Remove
all loose clothing and confine long hair.
Do not wear gloves.

5. Keepthe floor around the machine clean
and free of scrap material, oil and
grease.

6. Keep machineguards in place at all
times when the machine is in use. If

removed for maintenancepurposes, use
extreme caution and replacethe guards
immediately.

12. Giveyour work undividedattention.
Lookingaround, carryingon a
conversation,and "horse-play" are

careless acts that can result in serious
injury.

13. Keepvisitors a safedistance from the

work area.

14. Use recommended accessories;

improper accessories may be
hazardous.

15. Keephandsaway from all moving parts
(belts,cutters, gears, etc.).

16. Neveroperatethis machine under the
influenceof alcohol or drugs.

17. Readand understandall warnings
posted on the machine.

18. This manual is intended to familiarize you

with the technical aspects of this milling

machine. It is not, nor was it intended to
be, a training manual.

7. Do not over reach. Maintain a balanced
stance at all times so that you do notfall

or lean against blades or other moving

parts.

8. Makeall machine adjustments or

maintenancewith the machine
unpluggedfrom the powersource.

9. Usethe right tool. Don'tforce a tool or
attachment to do ajob which it was not
designed for.

10. Replacewarning labels if they become
obscured or removed.

11. Make certain the motor switch is in the
OFF position before connecting the

machine to the power supply.

19. This machine is designed and intended
for use by properlytrained and
experienced personnel only. If you are
notfamiliar with the proper safe useof
millingmachines, do not usethis
machineuntil proper trainingand
knowledge has been obtained.

20. Failureto comply with all of these
warnings maycause serious injury.

2

Specifications

Stock Number .690036 JVM-836-1
Stock Number ..690038 JVM-836-3

Spindle Taper R-8
Diameter of Quill (in) 3-3/8

Number of Spindle Speeds (5) JVM-836-1

JVM-836

Numberof SpindleSpeeds , (10) JVM-836-3
Range of Spindle Speeds (rpm) ".. 240-1,550 JVM-836-1

Range of Spindle Speeds (rpm) 120-1,550 JVM-836-3
Spindle Travel (in) 5
Collet Capacity (in) 1/8-7/8

Head Movement 90° Land R

MaximumTravel of Ram (in) , 10-1/2
Maximum DistanceSpindle toTable (in) " 13-3/4

Minimum Distance Spindle to Column (in) 5-114
Maximum Distance Spindle to Column (in) 15-3/4

Maximum LongitudinalTableTravel (in) " 24
Maximum Cross TableTravel (in) , 9-1/2
Maximum Knee TableTravel (in) , 14

Size of Table (in) , 7-7/8 x 36

T-Slot (number) Size (in) (3) 5/8
T-Slot Centers (in) 2-1/2

Motor (JVM-836-1) ,

Motor (JVM-836-3) 1-1/2 HP, 3Ph 2 Speed

Floor Space Required (LxWxH/in) 55 x 52 x 77
Net Weight (approx.) .1474 Lbs.

\ 1-112HP,1Ph 115/230V

prewired 115V

.230V Only

Table of Contents

Page

Warranty 1

Warnings . 2

Specifications 3
Tableof Contents 3

Installation Layout 4
Shipping ContainerContents 5
Unpackingand Clean-Up 5
Raisingthe Head 5
Site Preparation 6
Lifting the Mill 6

Lubrication 7
ElectricalConnections 7

Controls 8-9
Changing Speeds 9

Positionof Ram 9

Adjustments ... 9

Parts Listsand Breakdowns , 11-21

Wiring Diagram 22

The specifications inthis manualare given as general informationand are not binding. JET Equipment
& Tools reservesthe rightto effect, at anytime and without prior notice, changes or alterationsto parts,
fittings, and accessory equipment deemed necessaryfor any reaso'nwhatsoever.

3

JVM-836 Installation Layout

5"

1916

16.5"

HOLD
DOWN
BOLT

A-A

~I<X)

<D

.M

M~

(\J
(Y)

CD

I

L..J

..

VIEW A-A

3"

74-

4

Shipping Container Contents

1. Mill

1. FlatWay Cover(rear)

1. AccordionWay Cover (front)

1. Knee Crank

1. Drawbar

1. Tool Box:

1. Hex Wrench Set (1.5 -10mm)

1. 17/19mm Combination Wrench

1. #2 Cross Point Screw Driver

1. #2 Flat Blade Screw Driver

1. Oil Can

1. Handwheel

1. Adjustable Wrench

5. Handles for Handwheels

1. Operator's Manual

1. Warranty Card

Unpacking and Clean-Up

1. Finish removing the sides and top of the
crate. Leave the mill bolted to the skid until

it is ready to be moved to its final location.

I

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- -

2. Clean all rust protected surfaces with
kerosene or a light solvent. Do not use
gasoline, paint thinner, or lacquer thinner.
These will damage paintedsurfaces.

3. Cover all machined surfaces with a film of
light machinetool oil to inhibitrust.

4. Removewood block from below the knee.

Raising the Head

1. Remove handwheel (A, Fig. 1).

2. Loosen four cap nuts (B, Fig.1) with a Y2
turn to unlock the head. Do not remove

these nuts unless you are prepared to
remove the head.

3. Use a 19mm socket and breaker bar on
adjusting nut (C, Fig. 1)to raise the head.

A L

Fig.1

5

Site Preparation

CAUTION!

Mill must be supported equally under all

four corners. Failureto comply may cause

the column to twist and put a bind in the

bedways.

The millmust beplacedon an even surface

and bolted to the floor. Anchor bolts of
sufficient size and length must be fastened to

the floor according to the footprint of the mill.
See Installation Layout page4.

Lifting the Mill

~WARNING

Keep people a safe distance away from the

milling machine while ifis being moved.

Failure to comply may cause serious injury!

A A

Lift the mill with appropriate sized lifting
straps. Follow the diagram in Fig. 2 for the
proper position of the straps under the ram.

Note: the position of the ram, and that the
table has been moved against the column.
Tighten ram locking bolts (A, Fig. 2) before
lifting.

Carefully lift the mill. Move into position

over the anchor bolts. Lower the mill onto the
anchor bolts. Check for level, and securewith

washers and anchor bolt nuts.

Check the mill for level with a machinist's

level placed on the table. Mill must be level
back to front and side to side. Shim if

necessary, but rememberthat the mill must be
supportedequally at allfour corners. Checkfor
level beforetightening the anchor boltnuts and
after tightening them. Adjust as necessary.

D

Fig. 2

6

Lubrication

CAUTION!

Do not operate the mill before lubricating
the machine fully. Failure to comply may

Ccil'$e damage to ttle machine.

Reference Fig. 3 for parts of the mill to
lubricate:

A. Spindle Bearings - fill oil cup once daily

with MobilDTE@Oil Light.

B. Oil Pump - fill reservoir as needed by

removingcap on top of tank and fillingwith
Mobil Vactra Oil NO.2. Pump oil with

release handle once for every hour of

operation. Way surfaces and leadscrews
are lubricated inthis manner.

C. Knee Leadscrew - lubricatewith Mobilith@

AW2 once a week.

Electrical Connections

LtWARNING

All electrical connections must be made by

a qualified electricIan! Failure to comply

may cause serious injury!

The JVM-836-3 Mill is rated 1-1/2HP,3Ph,

230V only. The JVM-836-1 Mill is rated at 1-

1/2HP, 1Ph 115/230V and comes from the

factory prewired at 115V.

Confirm power at the site matches power
requirements of the mill before connecting to
the power source.

To change from 115V to 230V operation

(JVM-836-1 only), remove the junction box

cover on the motor and change the wires

accordingto the diagram found on the insideof

the cover.

Fig. 3

The mill must be properly grounded.

7

Controls
A. Belt Cover LockKnobs (A,Fig.4) located

on the right side of the head. Loosen and
remove belt cover to change belt position
on the pulleys.

B. Spindle Brake (B, Fig. 4) located on left

sideof the head. Move ineitherdirectionto
stop spindle once power has been turned

off.

C. Quill Feed Handle (C, Fig. 4) located on

the right side of the head. Rotate counter-
clockwise to lower spindle. Return spring

will retract the spindle automatically once
the handle is released.

D. Quill Lock (0, Fig. 5) located on the right

side of the head. Rotate the handle
clockwise to lock the quill in a desired

position. Rotate the handle counter-

clockwise to release.

E. Micrometer Adjusting Nut (E, Fig. 4)

located on the front of the head. Use for
setting specific spindle depth.

B-II"""-"-

G

F

E

Fig. 4

F. Manual Fine Feed (F, Fig. 4) located on

the left side of the head. Mustengage fine
feed (I, Fig.5) for handwheel to function.

G. Quill Stop (G, Fig. 4) located on the front

of the head. Used in conjunction with
micrometer adjusting nut for predetermined
depth.

H. Reversing Switch (H, Fig. 5) located on

the left side of the head. Switches rotation
of spindle. For 3 Ph motor there is an
additional low and high-speed option.

I.

Fine Feed Engagement(I, Fig.5) located
on the leftside of the head. Turnclockwise

until tight. This engages the manual fine
feed.

J. Draw Bar (J, Fig. 5) located on the top of

the head. This is used to tighten a R-8
collet or R-8 tool into the quill. Tighten
draw bar enough to hold tool securely

during milling operations.

J

H

".. CI

Fig. 5

8

K. Longitudinal Movement (J, Fig. 6)

handles located on opposite ends of the

table. This controls the X axis.

L. Cross Movement (K, Fig. 6) handle

located directly in front of the machine.
This controls the Y axis.

M. Knee Handle (L, Fig. 6) this raises the

table up and down.

Changing Speeds

1. Unscrew two knobs (A, Fig. 4) and remove
belt cover.

I

K

2. Loosen hex nut (A, Fig. 7).

3. Take the tension off the belt by moving
handle (B, Fig. 7).

4. Use the RPM chart, locatedon the back of

the belt cover, to place the belt in the

desired position.

5. Place tension on the belt by moving
handle.

6. Tighten hex nut.

7. Always replacethe belt cover!
Note: The 3 Ph motor has an additional low

andhigh-speedsetting(H, Fig.5).

Position of Ram

CAUTION!

..... -,'

Fig.6

_II

'

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I

.

Fig.7

Care should be taken to lock ram securely

after setting.

Ram can be moved by loosening two

handles (A, Fig. 8), andturning handle(B, Fig.

8) to desired position.
Note: It is recommended while doing heavy

millingwork the headshould be left as closeto
face of turret as possible. Maximum rigidity is
then obtained.

B

Fig.8

9