JET 321573, 321147, 321508, 321477, 321560 User Manual

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Operation and Maintenance Instructions
ZX-Series Large Bore Lathes
Models GH-1440ZX
GH-1640ZX/1660ZX
GH-1860ZX/1880ZX
GH-2280ZX
Model GH-1440ZX shown
* For ZX-Series Lathes Parts List & Electrical Diagrams, see document M-321910-1
JET
427 New Sanford Road
LaVergne, TN 37086 Part No. M-321910
Ph.: 800-274-6848 Revision
I 11/2014
www.jettools.com Copyright © 2014 JET
This .pdf document is bookmarked
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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.
Warranty Limitations
Woodworking products with a Five Year Warranty that are used for commercial or industrial purposes default to a
Two Year Warranty. Please contact Technical Service at 1-800-274-6846 for further clarification.
How to Get Technical Support
Please contact Technical Service by calling 1-800-274-6846. Please note that you will be asked to provide proof
of 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 Informa tion
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
®
branded products are not sold in Canada by JPW Industries, Inc.
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.
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2.0 Table of Contents
1.0 Warranty and service ..................................................................................................................................... 2
2.0 Table of Contents ........................................................................................................................................... 3
3.0 Safety warnings .............................................................................................................................................. 4
4.0 Dimensions and mounting hole centers ......................................................................................................... 5
5.0 Specifications ................................................................................................................................................. 6
5.1 Specifications: 14-inch lathe ....................................................................................................................... 6
5.2 Specifications: 16-inch lathe ....................................................................................................................... 7
5.3 Specifications: 18-inch lathe ....................................................................................................................... 8
5.4 Specifications: 22-inch lathe ....................................................................................................................... 9
6.0 General Description and Nomenclature ....................................................................................................... 10
7.0 Unpacking .................................................................................................................................................... 12
7.1 Contents of shipping container ................................................................................................................. 12
8.0 Installation .................................................................................................................................................... 13
8.1 Leveling the lathe ..................................................................................................................................... 13
8.2 Completing installation ............................................................................................................................. 13
8.3 Chuck preparation (three-jaw) .................................................................................................................. 14
8.4 Break-in period ......................................................................................................................................... 14
9.0 Maintenan c e/Lubr ication
............................................................................................................................... 15
10.0 Coolant preparation .................................................................................................................................... 16
11.0 Electrical connections ................................................................................................................................ 16
11.1 Conversion to 460 volt op eratio n
............................................................................................................. 17
12.0 Controls ...................................................................................................................................................... 17
13.0 Operation ................................................................................................................................................... 19
13.1 Tool setup ............................................................................................................................................... 20
13.2 Feed and thread selection ...................................................................................................................... 20
13.3 Thread cutting ........................................................................................................................................ 20
14.0 Adjustments ............................................................................................................................................... 20
14.1 Chuck jaw reversal ................................................................................................................................. 20
14.2 Gib adjustments ..................................................................................................................................... 21
14.3 Tailstock off-set ...................................................................................................................................... 21
14.4 Removing gap bridge ............................................................................................................................. 21
14.5 Installing gap bridge ............................................................................................................................... 22
14.6 Belt replacement/adjustment .................................................................................................................. 22
14.7 Aligning tailstock to headstock ............................................................................................................... 22
14.8 Cross slide nut adjustment ..................................................................................................................... 22
14.9 Shear pin replacement ........................................................................................................................... 22
14.10 Steady rest adjustment ......................................................................................................................... 22
14.11 Follow rest adjustment ......................................................................................................................... 23
14.12 Carriage stops ...................................................................................................................................... 23
15.0 Lubrication schedule and general maintenance ......................................................................................... 24
16.0 Reference tables ........................................................................................................................................ 25
16.1 Inch Lead And Feed ............................................................................................................................... 25
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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 lathe is designed and intended for use b y properly tr ained and experie nced personnel o nly. If you are
not familiar with the proper and safe operation of a lat he, do not use until proper t raining and knowledge
have been obtained.
5. Do not use this lathe for other than its intended use. If used f or other purposes, JET disclaims any real or
implied warranty and holds itself harmless from any injury that may result from that use.
6. Always wear approved safety glasses/face shields w hile using this lathe. Everyday eyeglasses onl y have
impact resistant lenses; they are not safety glasses .
7. Before operating this lathe, remove tie, rings, watches and other jewelry, and roll sleeves up past the
elbows. Remove all loose clothing and confine long hair. Non-slip footwear or anti-skid floor strips are
recommended. Do not wear gloves.
8. Wear ear protectors (plugs or muffs) during extended periods of operation.
9. 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.
10. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.
11. Make certain the switch is in the OFF position before connecting the machine to the power supply.
12. Make certain the machine is properly grounded.
13. Make all machine adjustments or maintenance with the machine unplugged from the power source.
14. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adj usting wrenches
are removed from the machine before turning it on.
15. 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.
16. 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 m oving parts, breakage of parts, mounting a nd any other conditions
that may affect its operation. A guard or other part that is damaged should be properly repaired or
replaced.
17. Provide for adequate space surrounding work area and non-glare, overhead lighting.
18. Keep the floor around the machine clean and free of scrap material, oil and grease.
19. Keep visitors a safe distance from the work area. Keep children away.
20. Make your workshop child proof with padlocks, master switches or by removing starter keys.
21. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are
careless acts that can result in serious injury.
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22. Maintain a balanced stance at all times so that you do not fall or lean against moving parts. Do not
overreach or use excessive force to perform any machine operation. Never force the cutting action.
23. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for which
it was not designed. The right tool will do the job better and safer.
24. Use recommended accessories; improper accessories may be hazardous.
25. Maintain tools with care. Keep cutting tools sharp and clean for the best and safest performance. Follow
instructions for lubricating and changing accessories.
26. Do not attempt to adjust or remove tools during operation.
27. Turn off the machine and disconnect from power before cleaning. Use a brush to remove shavings or
debris — do not use your hands.
28. Do not stand on the machine. Serious injury could occur if the machine tips over.
29. Never leave the machine running unattended. Turn the power off and do not leave the machine until it
comes to a complete stop.
30. Remove loose items and unnecessary work pieces from the area before starting the machine.
Familiarize yourself with the following safety notices used in this manual:
This means that if precautions are not heeded, it may result in minor injury and/or possible
machine damage.
This means that if precautions are not heeded, it may result in serious injury or possibly even
death.
4.0 Dimensions and mounting hole centers
Figure 1
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Specifications were current at the time this manual was published, 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.
5.0 Specifications
5.1 Specifications: 14-inch lathe
Model Number ...................................................................................................................................... GH-1440ZX
Stock Number ............................................................................................................................................. 321910
Capacities:
Swing over Bed (in.) ............................................................................................................................................ 14
Swing over Cross Slide (in.) ............................................................................................................................ 7-5/8
Swing Through Gap (in.) ....................................................................................................... ........................ 23-5/8
Length of Gap (in.) ........................................................................................................................................ 12-1/4
Distance between Centers (in.) ........................................................................................................................... 40
Headstock:
Spindle Bore (in.) ............................................................................................................................................ 3-1/8
Spindle Mount ................................................................................................................................................. D1-8
Spindle Taper with Sleeve ................................................................................................................... MT-7(MT-5)
Number of Spindle Speeds ................................................................................................................................. 12
Range of Spindle Speeds (RPM) ........................................................................................................... 42 to 1800
Gearbox:
Number of Longitudinal and Cross Feeds ......................................................................................................... 122
Range of Longitudinal Feeds (in./rev.) ........................................................................................ . 0.0015 to 0.0913
Range of Cross Feeds (in./rev.) ................................................................................................... 0.0006 to 0.0365
Number of Inch Threads ..................................................................................................................................... 61
Range of Inch Threads (in.) ................................................................................................................... 1-5/8 to 72
Number of Metric Threads ...................................................................................................... ............................ 24
Range of Metric Threads (mm) ............................................................................................................... 0.05 to 20
Compound and Carriage:
Maximum Tool Size (in.) ................................................................................................................................. 1 x 1
Maximum Compoun d Sli de Travel (in.) ........................................................................................................... 5-1/8
Maximum Cross Slide Travel (in.) ......................................................................................................................... 9
Carriage Travel (in.) ............................................................................................................................................ 35
Tailstock:
Tailstock Spindle Trav el (in.) ................................................................................................................................. 5
Tailstock Taper ................................................................................................................................................ MT-4
Steady Rest Capacity (in.) .................................................................................................................... 1/2 to 3-1/2
Follow Rest Capacity (in.) ........................................................................................................................... 3/8 to 7
Width of Bed (in.) .......................................................................................................................................... 13-3/8
Overall Dimensions (in.)(LxWxH) ............................................................................................ 97-1/2 x 40 x 46-7/8
Motor ..................................................................................................... 7- 1/2HP, 3PH, 230/460V (prewired 230V)
Approximate Net Weight (lbs.) ........................................................................................................................ 5187
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5.2 Specifications: 16-inch lathe
Model Number ............................................................................... GH-1640ZX................................... GH-1660ZX
Stock Number .......................................................................................321930.......................................... 321940
Capacities:
Swing over Bed (in.) ......................................................................................16.................................................. 16
Swing over Cross Slide (in.) ..........................................................................10.................................................. 10
Swing Through Gap (in.) ........................................................................ 25-7/8............................................ 25-7/8
Length of Gap (in.) ................................................................................. 12-1/4............................................ 12-1/4
Distance between Cen ters (in .) .....................................................................40.................................................. 60
Headstock:
Spindle Bore (in.) ..................................................................................... 3-1/8.............................................. 3-1/8
Spindle Mount ........................................................................................... D1-8.............................................. D1-8
Spindle Taper with Sleeve ............................................................ MT-7(MT-5)................................... MT-7(MT-5)
Number of Spindle Speeds ...........................................................................12.................................................. 12
Range of Spindle Speeds (RPM) .....................................................25 to 1800..................................... 25 to 1800
Gearbox:
Number of Longitudinal and Cross Feeds ...................................................122................................................ 122
Range of Longitudinal Feeds (in./rev.) ...................................0.0015 to 0.0913........................... 0.0015 to 0.0913
Range of Cross Feeds (in./rev.) .............................................0.0006 to 0.0365........................... 0.0006 to 0.0365
Number of Inch Threads ...............................................................................61.................................................. 61
Range of Inch Threads (in.) ............................................................ 1-5/8 to 72..................................... 1-5/8 to 72
Number of Metric Threads ............................................................................24.................................................. 24
Range of Metric Threads (mm) .........................................................0.05 to 20...................................... 0.05 to 20
Compound and Carriage:
Maximum Tool Size (in.) ........................................................................... 1 x 1.............................................. 1 x 1
Maximum Compoun d Sli de Travel (in.) .................................................... 5-1/8.............................................. 5-1/8
Maximum Cross Slide Tr avel (in.) ...................................................................9.................................................... 9
Carriage Travel (in.) ......................................................................................35.................................................. 55
Tailstock:
Tailstock Spindle Trav el (in.) ...........................................................................5.................................................... 5
Tailstock Taper ......................................................................................... MT-4.............................................. MT-4
Steady Rest Capacity (in.) ............................................................. 1/2 to 3-1/2.................................... 1/2 to 3-1/2
Follow Rest Capacity (in.) .....................................................................3/8 to 7.......................................... 3/8 to 7
Width of Bed (in.) ................................................................................... 13-3/8............................................ 13-3/8
Overall Dimensions (in.)(LxWxH) ............................................ 97-1/2 x 40 x 48.......................... 116-1/2 x 40 x 4 8
Motor ........................................................................ 7-1/2HP, 3Ph, 230/460V*.............. 7-1/2HP, 3
Ph, 230/460V*
Approximate Net Weight (lbs.) ..................................................................5475.............................................. 5795
*pre-wired 230V
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5.3 Specifications: 18-inch lathe
Model Number ............................................................................... GH-1860ZX................................... GH-1880ZX
Stock Number .......................................................................................321960.......................................... 321970
Capacities:
Swing over Bed (in.) ......................................................................................18.................................................. 18
Swing over Cross Slide (in.) ..........................................................................11.................................................. 11
Swing Through Gap (in.) ........................................................................ 27-1/2............................................ 27-1/2
Length of Gap (in.) ................................................................................. 12-1/4............................................ 12-1/4
Distance between Cen ters (in .) .....................................................................60.................................................. 80
Headstock:
Spindle Bore (in.) ..................................................................................... 3-1/8.............................................. 3-1/8
Spindle Mount ........................................................................................... D1-8.............................................. D1-8
Spindle Taper with Sleeve ............................................................ MT-7(MT-5)................................... MT-7(MT-5)
Number of Spindle Speeds ...........................................................................12.................................................. 12
Range of Spindle Speeds (RPM) .....................................................25 to 1800..................................... 25 to 1800
Gearbox:
Number of Longitudinal and Cross Feeds ...................................................122................................................ 122
Range of Longitudinal Feeds (in./rev.) ...................................0.0015 to 0.0913........................... 0.0015 to 0.0913
Range of Cross Feeds (in./rev.) .............................................0.0006 to 0.0365........................... 0.0006 to 0.0365
Number of Inch Threads ...............................................................................61.................................................. 61
Range of Inch Threads (in.) ............................................................ 1-5/8 to 72..................................... 1-5/8 to 72
Number of Metric Threads ............................................................................24.................................................. 24
Range of Metric Threads (mm) .........................................................0.05 to 20...................................... 0.05 to 20
Compound and Carriage:
Maximum Tool Size (in.) ........................................................................... 1 x 1.............................................. 1 x 1
Maximum Compoun d Sli de Travel (in.) .................................................... 5-1/8.............................................. 5-1/8
Maximum Cross Slide Tr avel (in.) ...................................................................9.................................................... 9
Carriage Travel (in.) ......................................................................................55.................................................. 75
Tailstock:
Tailstock Spindle Trav el (in.) ...........................................................................5.................................................... 5
Tailstock Taper ......................................................................................... MT-5.............................................. MT-5
Steady Rest Capacity (in.) ............................................................. 1/2 to 3-1/2.................................... 1/2 to 3-1/2
Follow Rest Capacity (in.) .....................................................................3/8 to 7.......................................... 3/8 to 7
Width of Bed (in.) ................................................................................... 13-3/8............................................ 13-3/8
Overall Dimensions (in.)(LxWxH) ........................................116-1/2x40x48-7/8........................ 136-1/8x40x48-7/8
Motor ........................................................................7-1/2HP, 3PH, 230/460V* ............. 7-1/2HP, 3PH
, 230/460V*
Approximate Net Weight (lbs.) ..................................................................6245.............................................. 6590
*pre-wired 230V
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5.4 Specifications: 22-inch lathe
Model Number ...................................................................................................................................... GH-2280ZX
Stock Number ............................................................................................................................................. 321980
Capacities:
Swing over Bed (in.) ............................................................................................................................................ 22
Swing over Cross Slide (in.) ................................................................................................................................ 11
Swing Through Gap (in.) ....................................................................................................... ........................ 27-1/2
Length of Gap (in.) ........................................................................................................................................ 12-1/4
Distance between Centers (in.) ........................................................................................................................... 80
Headstock:
Spindle Bore (in.) ............................................................................................................................................ 3-1/8
Spindle Mount ................................................................................................................................................. D1-8
Spindle Taper with Sleeve ................................................................................................................... MT-7(MT-5)
Number of Spindle Speeds ................................................................................................................................. 12
Range of Spindle Speeds (RPM) ........................................................................................................... 25 to 1800
Gearbox:
Number of Longitudinal and Cross Feeds ......................................................................................................... 122
Range of Longitudinal Feeds (in./rev.) ........................................................................................ . 0.0015 to 0.0913
Range of Cross Feeds (in./rev.) ................................................................................................... 0.0006 to 0.0365
Number of Inch Threads ..................................................................................................................................... 61
Range of Inch Threads (in.) ................................................................................................................... 1-5/8 to 72
Number of Metric Threads ...................................................................................................... ............................ 24
Range of Metric Threads (mm) ............................................................................................................... 0.05 to 20
Compound and Carriage:
Maximum Tool Size (in.) ................................................................................................................................. 1 x 1
Maximum Compoun d Sli de Travel (in.) ........................................................................................................... 5-1/8
Maximum Cross Slide Travel (in.) ......................................................................................................................... 9
Carriage Travel (in.) ............................................................................................................................................ 75
Tailstock:
Tailstock Spindle Trav el (in.) ................................................................................................................................. 5
Tailstock Taper ................................................................................................................................................ MT-5
Steady Rest Capacity (in.) .................................................................................................................... 1/2 to 3-1/2
Follow Rest Capacity (in.) ........................................................................................................................... 3/8 to 7
Width of Bed (in.) .......................................................................................................................................... 13-3/8
Overall Dimensions (in.)(LxWxH) .......................................................................................... 136-1/8 x 40 x 48-7/8
Motor ..................................................................................................... 10HP, 3PH, 230V/460V (pre-wired 230V)
Approximate Net Weight (lbs.) ........................................................................................................................ 7400
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6.0 General Description and Nomenclature
Figure 2 – General Description of ZX Lathes
Bed and stand
The lathe bed (A) is made of cast iron with low
vibration and high rigidity. Two precision-ground v-
slideways (B), reinforced by s upersonic frequency
hardening, offer precision guidance for the
carriage. The main drive motor is mounted in the
stand (C) below the gearbox.
Headstock
The headstock (D) is cast from high grade, low
vibration cast iron. In the head, the spindle is
mounted in precision taper roller bearings. See
section 12.0 for detailed explanation of controls.
The electrical box is mounted to the rear of the
headstock.
A 3-Jaw scroll chuck (E) and a 4-jaw independent
chuck are included.
Feed gearbox
The gearbox (F) is made from high quality cast iron
and is mounted to the left side of the machine bed.
Carriage
The carriage assembly is composed of the Apron,
the Saddle, the Cross Slide, the Compound Rest,
and the four-way Tool Post.
Apron (G). Quick travel of the Apron for
positioning is accomplished by means of a bed-
mounted rack and pinion, operated manually by
the handwheel on the front of the apron, or
automatically by the feed direction handle.
Saddle (H). The saddle is made from high
quality cast iron and rid es along the v-ways.
Cross Slide (
I). The cross-slide is mounted on
the saddle and used for cross feed operations. It
moves on a dovetailed slide which can be
adjusted for play by means of the gibs.
Compound Rest (J). The com pound rest, which
is T-slotted and mounted on the cross slide, can
be rotated 360°, allowing tapers to be turned.
The compound rest travels on dovetailed ways,
with adjustable gibs.
11
Four-Way Tool Post (K). The tool post is a
turret design, mounted to the compound rest. It
holds up to four tools simultaneously, and
includes an indexing function. (Always use a
minimum of two clamping screws when installing
a cutting tool.)
Tailstock
The tailstock (L) slides on a v-way and can be
locked at any location by a clamping lever. The
tailstock has a heavy duty quill with a No. 4 Morse
Taper or No. 5 Morse Taper (18 ” and 22” model s)
and etched graduation scale. The tailstock can be
offset for taper cutting.
Leadscrew and feed rod
The leadscrew (M) and feed rod (N) are m ounted
on the front of the machine bed. They are
connected to the gearbox at the left and are
supported by bearings on both ends. Both are
equipped with shear pins.
Spindle direction control axle (O)
Spindle rotation can be reversed by simply moving
the control lever (P) mounted at the right of the
carriage. (Allow spindle to come to a stop before
reversing.)
Travel setting rod (Q)
The stops can be moved and tightened into
position at any point along the rod, to limit travel of
the carriage.
Thread ch aser (R)
Simplifies the process of setting leadscrew/carriage
positions in relation to the workpiece, by indicating
the point on the leadscrew where the half nut can
be reengaged to continue threading.
Steady rest (S)
The steady rest serves as a support for shafts on
the free tailstock end. The steady rest is mounted
on the bedway and secured from below with a bolt,
nut and locking plate.
Follo w rest (T)
The traveling follow rest is mounted to the saddle,
and thus follows the movement of the t urning tool.
Only two fingers are required as the place of the
third is taken by the turning tool. The follow rest is
used for turning operations on long, slender work
pieces. It prevents the work piece from flexing
under the pressure of the cutting tool.
Work lamp (U)
Adjustable halogen lamp with independent on/off
switch.
Coolant nozzle (V)
Fully adjustable gooseneck; flow is regulated
through a valve lever at its base.
Foot brake (W)
Activates a braking strap at the motor for
emergency stopping of all lathe functions.
Chuck guard (X)
Hinged, with upper and front windows.
Micro stop (Y)
Used for manual carriage operation.
12
7.0 Unpacking
Open shipping container and check for shipping
damage. Report any damage immediately to your
distributor and shipping agent. Do not discard any
shipping material until the Lathe 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 ins tructions.
7.1 Contents of shipping container
1 Lathe
1 Steady Rest (mounted on Lathe)
1 Follow Rest (mounted on Lathe)
1 10” Three Jaw Chuck (mounted on Lathe)
1 12” Four Jaw Chuck
1 Face Plate (12” Face Plate for 14” & 16”
lathes; 16” Face Plate for 18” & 22” lathes)
1 Tool Box containing:
1 Open End Wrench Set
1 Hex Wrench Set
1 Morse Reduction Sleeve
1 Center
6 Leveling Bolts with Hex Nuts
6 Leveling Pads
1 Flat Blade Screwdriver
1 Cross Point Screwdriver
1 Chuck Wrench
1 Tool Post Wrench
1 Cam Wrench
1 Adjustable Wrench
1 Round Nut Wrench
1 Oil Gun
1 Cross Feed Handle (not shown)
2 Shear Pins (not shown)
1 Gap Bridge Pin Driver
1 Live Center (MT4 for 14” & 16” lathes;
MT5 for 18” & 22” lathes)
1 Operating Instructions Manual
1 Parts List Manual
1 Test Record
1 Warranty Card
Figure 3 - Contents of tool box
13
Read and understand the
entire contents of this
manual before attempting set- up or operatio n!
Failure to comply may cause serious injury.
8.0 Installation
1. Finish removing all crate materia l from around
the lathe.
2. Unbolt lathe from shipping pallet.
3. Choose a location for the lathe that is dry and
has sufficient illumination (consult OSHA or
ANSI standards for recommended lighting
levels in workshop environments).
4. Allow enough room to service the lathe on all
four sides, and to load and off-load work
pieces. In addition, if bar work is to be
performed, allow enough space for stock to
extend out the headstock end. If used in
production operations, leave enough space for
stacking unfinished and finished parts.
5. The foundation must be solid to support the
weight of the machine and prevent vibration,
preferably a solid concrete floor.
6. Sling the lathe as shown in Figure 4, using
steel rods or pipes of sufficient strength
inserted through the holes in the bed casting.
Do not lift lathe by the spindle. With
adequate lifting equipment, slowly raise the
lathe off the shipping pallet. Make s ure lathe is
balanced before moving.
Figure 4: Lifting the lathe
Confirm that all suspension
equipment is properly rated and in good
condition for lifti ng lathe. Do not allow anyone
beneath or near load while lifting.
7. The lathe can be placed upon the cast iron
leveling pads under each foot hole, and
adjusted using the adjusting bolts with hex
nuts. Or, it may be secured to the floor using
bolts placed head-down in the concrete, and
using shims where needed to level the
machine. Refer to Figure 1 for mounting hole
dimensions.
8.1 Leveling the lathe
It is imperative that the lathe be on a level plane;
that is, where headstock and tailstock center points
remain aligned throughout the tailstock travel, with
the bed ways absent of twist and thus parallel to
the operational center line.
A lathe which is not properly leveled will be
inaccurate, producing tapered cuts. Also, the
center point of the tailstock will vary as it is
positioned along the bed, thus requiring constant
readjustment of the set of the tailstock.
8. Use a machinist’s precision level on the bed
ways both front to back and side to side, as
shown in Figure 5. Take the reading in one
direction every ten inches. Make sure the ways
are clean and free of any debris before placi ng
a level upon them.
9. Deviation over bed length (see Figure 5):
a) Maximum 0.02/1000mm
b) Maximum 0.04/1000mm
Figure 5: Leveling
10. Tighten foot screw nuts evenly to avoid
distortion.
11. Leveling should be inspected occasionally,
and especially if the accuracy of the lathe
begins to diminish.
8.2 Completing installation
12. Clean all rust protected surfaces using a mild
commercial solvent, kerosene or diesel fuel.
Do not use paint thinner, gasoline, or lacquer
thinner. These will damage painted surfaces.
Cover all cle aned s urfaces w ith a light f ilm of
20W machine oil.
13. Open the end gear cover. Clean all
components of the end gear assembly and
coat all gears with a heavy, non-slinging
grease. Close the end gear cover.
14
8.3 Chuck preparation (three-jaw)
Read and understand all
directions for chuck preparation. Failure to
comply may cause serious personal injury
and/or damage to the lathe.
The three-jaw scroll chuck i s shipped pre-installed
on the lathe. It can be used for clamping cylindrical,
triangular and hexagonal stock, and has reversible
jaws.
The four-jaw chuck has independently adjustable
jaws, and permits the holding of square and
asymmetrical pieces. It also enables accurate
concentric set-up of cylindrical pieces.
Before removing a chuck, place a flat piece of thick
plywood across the bedways under the chuck to
prevent damage to the bedways should the chuck
fall from your hands. Alternatively, many users
make a wood chuck cradle that sits atop the ways
and accepts the specific diameter of chuck, for
easier installing and removal. Figure 6 shows an
example.
Figure 6: Chuck cradle
To remove the chuck:
1. Support the chuck while turning six camlocks
1/4 turn counterclockwise with the chuck
wrench from the tool box.
2. Carefully remove the chuck from the spindle
and place on an adequate work surface.
3. Inspect the camlock studs. Make sure they
have not become cracked or broken during
transit. Clean all parts thoroughly with solvent.
Also clean the spindle and camlocks.
4. Cover all chuck jaws and scroll inside the
chuck with #2 lithium tube grease. Cover the
spindle, camlocks, and chuck body with a light
film of 20W oil.
5. Lift the chuck up to the spindle nose and press
onto the spindle. Tighten in place by turning
the camlocks 1/4 turn clockwise. The index
mark (A, Figure 7) on the camlock should be
between the two indicator arrows (B) when
tight, as shown in Figure 7.
If the index mark (A) is not between the two
arrows, i.e. the cam turns beyond the
indicator arrows, then remove the chuck and
turn the camlock stud IN one full turn.
If a camlock will not engage, remove the
chuck and turn the camlock stud OUT one
full turn.
Figure 7: Camlock
6. Make sure chuck is secure on the spindle with
the camlocks correctly engaged.
8.4 Break-in period
Do not run the lathe above 560 RPM for the first six
hours of operation, to allow gears and bearings to
adapt and run smoothly.
15
9.0
Maintenance/Lubrication
Lathe must be serviced at all
lubrication points and all reservoirs filled to
operating level before the lathe is put into
service. Failure to comply may cause serious
damage to the lathe.
The ZX series lathe is shipped with oil in the
reservoirs. Coolant is not included.
Use clean lubricants and check levels often,
including before each working shift. To ensure
proper lubrication, oil levels should not be less than
the center of the oil sight glass. Try not to overfill,
as this may cause leakage.
A chart is supplied in section 15.0 for quick
reference to all lubrication points.
Unless specified otherwise, the lubrication points
require a non-detergent, ISO 68, SAE 20W oil. The
recommended brand for this lathe is Mobil DTE
®
Oil Heavy Medium.
1. Chuck – In addition to the lubrication already
described in section 8.3, daily lubricate the
chuck with SAE 20W oil through the ball oiler,
shown in Figure 8.
Figure 8
2. Headstock – Oil must be up to indicator mark
in oil sight glass (A, Figure 9). Top off with
SAE 20W. Fill by removing the plug o n top of
the headstock. To drain, rem ove drain plug o n
the left side of the headstock at the lower rear
corner. Drain oil completely and clean out all
metal shavings. Refill after the first month of
operation. Then change the oil in the
headstock every two months.
3. Gearbox – Oil must be up to indicator mark in
oil sight glass (B, Figure 9). Top off with SAE
20W. To add oil to the gearbox, remove two
screw s on t he t op co ve r a nd r e move c o ve r . To
drain, remove drain plug (C , Figure 9) on the
left side of the gearbox. Drain oil completely
and refill after the first three months of
operation. Then change oil in the gearbox
ever y si x m o nths.
Figure 9
4. Apron – Oil must be betwee n indicator marks
in the oil sight glass (A, Figure 10). Top off
with SAE 20W. Remove oil plug (B, Figure 10)
to f ill. T o d r ain, r e m o ve d ra i n plug o n bo t t o m o f
apron.
Drain oil completely and refill after the first
three months of operation. Then, change o il in
the apron annually. Pull knob (C, Figure 10) on
the one-shot lube system and hold f or several
seconds to allow oil to fill the pump. When the
knob is released, oil will flow through various
oil lines to lubricate the ways and cross slide
surface. Perform this twice daily or as needed.
When t he oil leve l is be low t he ind icato r ma rk,
oil must be added.
Figure 10
5. Leadscrew and Feed Rod – Daily lubricate
two ball oilers on the right side bracket (A,
Figure 11) with SAE 20W once or twice per
shift.
16
Figure 11
Saddle – Daily lubricate ball oiler (A, Figure
12) on handwheel shaft with SAE 20W.
The anti-dust felt on both ends of the saddle
where it contacts the ways should be cleaned
weekly with kerosene. If the felt becomes
damaged, replace it.
6. Compound Rest – Daily lubricate two ball
oilers (B, Figure 12) on top of compound rest
with SAE 20W.
7. Cross Slide – Daily lubricate one ball oiler (C,
Figure 12 – opposite side) with SAE 20W.
8. Toolpost – Daily lubricate one ball oiler (D,
Figure 12) with SAE 20W.
Figure 12
9. Tailstock – Daily lubricate one ball oiler (A,
Figure 13) on top of tailstock with SAE 20W.
Figure 13
10. V-Belts – Regularly check and adjust the
tightness of the v-belts to prolong their service
life. See section 14.6, Belt replacement and
adjustment.
10.0 Coolant preparation
Follow cool ant manufacturer’s
recommendations for use, care and disposal.
1. R emove ac cess cover o n tailstoc k end at t he
rear base of the lathe. Make sure coolant
pump has not shifted during transport.
2. Pour four gallons (approximate) of coolant mix
into the chip pan.
3. After machine has been connected to power,
turn on coolant pump and check to see that
coolant is cycling properly.
4. Replace access cover.
11.0 Electrical connections
Electr ical connections must be
made by a qualified electrician in compliance
with all relevant codes. This machine must be
properly grounded while in use to help protect
the operator from electrical shock and possible
fatal injury.
The main motor is rated at 7-1/2 HP (or 10HP f or
model 2280ZX), 230/460V and comes from the
factory prewired at 230V. Confirm that power
available at the lathe’s location is the same rating
as the lathe.
Power is connected properly when rotation of the
forward-reverse knob (see E, Figure 15) to t he left
position causes the spindle to rotate
counterclockwise as viewed from the tailstock. If
the chuck rotates in the clockwise direction,
disconnect the lathe from the power source, switch
any two of the three power leads (not the green
ground wire), and re-connect the lathe to the power
source.
17
11.1
Conversion to 460 volt operation
Disconnect machine from
power source. Failure to do so may cause
serious injury.
Main Motor: Change the wires according to the
diagram on the outside of the motor junction box.
Transformer: Open electrical panel on rear of
machine on the headstock side. Switch wire from
230V terminal to 460V terminal as outlined on the
transformer.
Coolant Pump: Open access panel on the base at
the tailstock end. Change wires in coolant pump
junction box according to diagram on the outside of
the junction box cover.
Main Power Switch (A, Figure 14): Turns power to
machine on and off.
Power Source Cable Receiver (B, Figure 14).
Make sure the lathe is properly grounded.
Figure 14: Power input
12.0 Controls
Figure 15 – Headstock controls
1. Control Panel: located on front of headstock.
Coolant On-Off Switch (A, Figure 15)
tu rns coolant pump on and off.
Power Indicator Light (D, Figure 15) is lit
whenever lathe is r eceiving po wer.
Emergency Stop Switch (C, Figure 15)
stops all machine functions (Caution:
Lathe will still have power). Twist
clockwise to re-set.
Jog Switch (B, Figure 15). Quickly press
and release to rotate the spindle.
2. Headstock Gear Change Levers (F, Figure
15): Move levers left or right to desired spindle
speed, according to accompanying chart.
3. Leadscrew/Feed Rod Directional Dial (E,
Figure 15): Changing knob changes direction
of feed.
Do not move knob (E)
while machine is running.
4. Feed/Lead Selector Levers (G, Figure 15):
Used conjunctively to set up for threading or
feeding, according to the accompanying chart
(G
1
, Figure 15).
18
Figure 16 – Carriage controls and settings
5. Carriage Handwheel (H, Figure 16): Located
on apron assembly. Rotate handwheel
clockwise to move carriage toward tailstock
(right). Rotate handwheel counterclockwise to
move carriage toward headstock (left).
6. Feed Engagement Lever (J, Figure 16):
Located on front of apron assembly. Pull lever
up to engage. Push lever down to disengage.
7. Adjustable Feed Clutch (K, Figure 16): When
the machine is overloaded, it can slip. Then
cutting rate must be reduced. Note: This
setting has been calibrated at the factory and
should not need adjustment. If adjustment ever
becomes necessary, follow the d iagram on the
front of the apron.
8. Longitudinal/Cross Feed Selector Lever (L,
Figure 16): Can be pushed to upper, middle
and lower three positions. Push t he lever up,
cross feed is effected. Push the lever down,
longitudinal feed is eff ected. W hen the lever is
in the middle position, screws can be cut by
engaging the half nut.
9. Half Nut Lever (M, Figure 16): Located on
front of apron assembly. Used for threading.
10. Spindle Direction Control Lever (N, Figure
16). Move lever to the right so that its tab
clears the notch, then downward for forward
spindle rotation, or upward for reverse spindle
rotation. Allow spindle to come to a stop
before changing directio ns. Position lever in
neutral position (tab in notch) before shutting
off the lathe.
11. Cross Slide Handwheel (P, Figure 16):
Located above the apron assembly. Clockwise
rotation moves cross slide toward rear of
machine.
12. Cross Slide Lock (Q, Figure 16): Lever
located on left side of cross slide. Turn
clockwise to lock and counterclockwise to
unlock.
13. Carriage Lock (R , Figure 16): Located on top
right of carriage. Turn clockwise to lock,
counterclockwise to unlock.
Carriage lock must be
loose before moving carr iage or dam age to
lathe may occu r.
14. Compound Rest (S, Figure 16) is located on
top of cross slide and can be rotated 360°.
There are calibrations in degrees (T, Figure
16) below the rest to assist in placement of the
compound rest to the desired angle.
15. Compound Rest Handle (U, Figure 16):
Located on end of compound slide. Rotate
clockwise or counterclockwise to position.
16. Compound Lock (not shown): Lever located
on back of compound rest. Turn clockwise to
lock and counterclockwise to unlock.
17. Tool Post Clamping Lever (V, Figure 16):
Located on top of tool post. Rotate counter-
clockwis e to loosen and clockwise to tighten.
18. Thread Chaser (W, Figure 16): Indicates the
point on the leadscrew where the half nut can
be re-engaged to continue inch threading.
19. Tailstock Quill Clamping Lever (A, Figure
17): Located on the tailstock. Rotate clockwise
to lock the sleeve. Rotate counterclockwise to
unlock.
Figure 17 – Tailstock controls
20. Tailstock Clamping Lever (B , Figure 17): Lift
up to lock. Push down to unlock. If the tailstock
has a heavy load, tighten the hexagon head at
right side of tailstock for auxiliary locking.
21. Tailstock Quill Handwheel (C, Figure 17):
Rotate clockwise to advance quill and
counterclockwise to retract it.
19
22. Tailstock Off-Set Adjustment (D , Figure 17):
Two hex socket cap screws located on the
tailstock base are used to off-set the tailstock
for cutting tapers. Loosening one screw while
tightening the other will off-set the tailstock. Do
not clamp the tailstock lock handle when
adjusting.
Figure 18 – Other controls
23. Foot Brake (A, Figure 18): The connecting rod
mechanism is in the bed stand. The braking
device is in the pulley of the headstock. Press
the pedal to stop all lathe functions. (Caution:
Lathe still has power.)
24. Micro Carriage Stop (B, Figure 18): can be
used during manual feed operation. The dial
can be turned for fine tuning the position of the
stop. The micro carriage stop can be moved
along the bed by loosening the two socket
head cap screws underneath the stop.
25. Bed Cover (C, Figure 18): can be easily
removed to clean out the stand.
13.0 Operation
The operator should consult shop manuals such as
“Machinery’s Handbook” for cutting speeds and
feeds appropriate to specific workpieces. Correct
feed depends upon material to be cut, cutting
operation, tool type, chucking rigidity, depth of cut,
and desired surface quality.
IMPORTANT: A llow a break-in period for t he new
lathe so that gears and bearings can adapt; do not
run the lathe above 560 RPM for the first six hours
of operation.
The following points must be
observed when operating the lathe:
Ne ver tur n an y ha ndle s o r le ver s w he n spi nd le
is at high speed.
Change spindle speed only after spindle stops.
Change feed rate only when spindle is at low
speed or is stopped.
Never exceed maximum speed limitation of the
work holding device.
Before starting spindle, check that each handle
or lever is at correct position to ensure normal
engagement of gears. The spindle direction
control lever should be at neutral position.
If the brake becomes ineffective, turn off
machine and adjust brake immediately.
W hen operating spindle direction contro l lever,
always turn it to correct position; never use
“pre-position” for cutting at a reduced speed.
Jaw teeth and scroll must be fully engaged, to
prevent the jaws from breaking and being
thrown from chuck (see Figure 19).
Figure 19 – Insufficient jaw tooth engagement
Avoid long workpiece extensions, as parts may
bend or fly off (see figure 20). Use rests or the
tailstock for support.
Figure 20 – Improper setups
Avoid short clamping contact (Figure 21, A) or
clamping on a minor part diameter (Figure 21,
B). Face-locate the workpiece for added
support.
20
Figure 21 – Improper setups
13.1 Tool setup
The cutting angle is correct when t he cutting edge
is in line with the center axis of workpiece. Use the
point of the tailstock center a s a gauge and shims
under the tool to obtain correct center height.
Use a minimum of two clamping screws to secure
each tool.
13.2 Feed and thread selection
1. Reference the feed and thread chart on the
front of the headstock (A, Figure 22).
2. Move levers and knobs (B/C/D/E, Figure 22) to
the appropriate position according to the feed
and thread chart.
Figure 22
13.3 Thread cutting
1. Set forward/reverse lever (F, Figure 22) to
desired direction.
2. Set selector levers (G/H, Figure 22) to desired
R.P.M.
3. Select desired thread using levers (B/C/D/E,
Figure 22).
4. Set selector lever (A, Figure 23) to correct
posit ion (ne ut ral).
5. Engage the half nut lever (B, Figure 23).
6. Make a test cut with scrap material and check
results before cutting regular material.
Figure 23
14.0 Adjustments
Adjustments to the lathe,
especially those involving alignments of
bearings, spindle, leadscrew, clutch, etc.,
should only be performed by qualified
personnel, as improper alignments can damage
the machine and/or create a safety hazard.
Turn off main switch and press
emergency stop button before making
adjustments to lathe.
14.1 Chuck jaw reversal
The three jaws on the scroll chuck are reversible,
to hold stock with larger diam eters. See Figure 24.
Loosen two screws with the provided hex key,
remove jaw, and rotate it 180-degrees. Re-install
jaw, and tighten each screw in in crements until fully
tightened.
21
Figure 24 – Chuck jaw reversal
14.2 Gib adjustments
After a period of time, some moving components
may need adjustment for play (or “backla sh”) due
to wear. Do not overtighten gib screws as this can
hasten wear to components.
14.2.1 Saddle
Turn gib screws on eit her side of the saddle at t he
rear to adjust the drag on the saddle.
14.2.2 Cross slide
Gib screws are located at front and rear of slide
opposite to one another (A, Figure 25). To adjust
drag, loosen rear gib screw one turn, and tighten
front gib screw a quarter turn. Rotate handwheel to
check play. Repeat as needed until slide moves
freely without play. Gently tighten rear gib screw.
14.2.3 Compound rest
Gib screws are located at front and rear of
compound rest (B, Figure 25). To adjust, use same
method as for Cross Slide.
Figure 25 – Gib adjustments, slide and rest
14.2.4 Half Nut
Gib screws are located on right side of apron (C,
Figure 26). Loosen the jam nuts and rotate the
screws clockwise until any backlash is corrected.
Then re-tighten nuts.
Figure 26 – Half nut gib adjustment
14.3 Tailstock off-set
Follow the procedure below to of f-set the tailstock
to cut shallow tapers:
1. Loosen tailstock i n position by lowering locking
handle (B, Figure 27) a nd loosening hexagon
head eccentric shaft at back of tails tock.
2. Alternately loosen and tighten front and rear
screws (D, Figure 27). Note: Front screw is
shown.
The scale on the end of the tailstoc k base indicates
amount of offset, and helps when re-centering.
If clamping force needs to be adjusted, use the hex
nut beneath the tailstock body.
Figure 27 – Tailstock offset
14.4 Removing gap bridge
1. To remove the gap bridge, remove four hex
socket cap screws, and two hex cap bolts.
2. Tighten the hex nut s on the tapered a lignment
pins to loosen the pins. Once loosened, they
can be removed.
3. Gap bridge can now be removed.
22
14.5 Installing gap bridge
1. Clean the bottom and the ends of the gap
bridge thoroughly.
2. Set gap bridge in place and align the ends.
3. Loosen the nuts on the locati ng pins and push
down through the gap into the lathe bed.
4. Replace four hex socket cap screws and
tighten alternately until all are snug.
14.6 Belt replacement/adjustment
1. Disconnect machine from power source.
2. Open end gear cover, remove lower rear cover
and lower side cover. This will expose the
motor and v-belts.
3. Loosen upper hex nut (A, Figure 28). Place
scrap piece of wood under motor to act as
lever. Lift motor up and block temporarily.
4. Remove belts. Install new belts onto pulleys.
5. Lift up on motor and remove temporary
blocking.
6. Tension belts by loosening lower nut (B,
Figure 28) and tightening upper nut (A, Fig ure
28) until light finger pressure causes
approximately 3/4” deflection on each belt.
7. Install covers and connect lathe to the power
source.
Figure 28 – Belt adjustment
14.7 Aligning tailstock to headstock
1. Fit a 12” ground steel bar between centers of
the headstock and tailstock (Figure 29).
2. Fit a dial indicator to the top slide and traverse
the center line of the bar.
If adjustment is needed, align the tailstock using
the off-set screws (D, Figure 27) until the tailstock
is aligned.
Figure 29 – Tailstock/Headstock alignment
14.8 Cross slide nut adjustment
The cross slide moves via a lead screw which
drives a nut. This can be adjusted if backlash
develops. Backlash is identified by turning the
cros s slide handw heel le ft a nd rig ht – if there is a
delay before any cross slide movement, the nut
needs adjusting.
Tighten or loosen the two screws shown in Figure
30 until backlash is adjusted out.
Figure 30 – Cross slide nut adjustment
14.9 Shear pin replacement
The lead screw and feed shaft are equipped with
shear pins, which are designed to break in order to
protect the drive system against overload. A
broken shear pin must be replaced.
Knock out the broken pin; line up the holes and
insert new pin.
14.10 Steady rest adjustment
Always lubricate the fingers with grease before
using the steady rest. The point at which the
fingers contact the workpiece require continuous
lubrication to prevent premature wear.
To set the steady rest (see Figure 31):
1. Loosen hex nut (A) to slide steady rest along
the ways.
2. Loosen knurled handle (B) until it can be
pivoted out of the slot.
3. Loosen three lock knobs (C), and back of f the
fingers (D) using knurled handles (E).
23
4. Pivot the collar on its hinge and position
steady rest around workpiece.
5. Firml y tighten hex nut (A).
6. Set the fingers snugly to work piece and
secure by tightening locking knobs. Fingers
should be snug but not overly tight.
Figure 31 – Steady rest adjustment
14.11 Follow rest adjustment
The follow rest mounts to the saddle with two
socket head cap bolts. The follow rest should be
mounted so that locking knobs point away from
chuck.
The sliding fingers are set similar to those on t he
steady rest – free of play, but not binding.
Always lubricate the fingers suf f iciently with grea se
before operating.
14.12 Carriage stops
Adjust each stop (Figure 32) by loosening two set
screws, and sliding it along the rod. Rotate the stop
so that the raised area is upward to contact the
carriage. Tighten both set screws securely.
Position the raised area downward when the stop
is not being used.
Figure 32
24
15.0 Lubrication schedule and general maintenance
Regularly scheduled maintenance is crucial to ensure a long service life for your machine. The schedule below shows
general cleaning, lubrication points and coolant replacement information for the ZX Series Lathes. Push stop button
and power off before lubricating. Foll ow loc al regul ati ons for dispos al of us ed cool ant/l ubric ants . Minim ize dir ect
skin contact with lubricants and coolants, and wear eye protection when pouring coolant in case of splash.
Mobile DTE® Oil Heavy Medium is recommended for the SAE-20W machine oil.
If the brand of oil is ever changed, it is recommended that you flush and clean the reservoir first to prevent any
compatibility is sues.
Table 1
Section Element Action Lubricant Frequency
8.3
Chuck
Grease jaws and scroll #2 lithium tube grease periodically
9.0 Fill at (1) ball oiler SAE-20W machine oil daily
8.3
Spindle/cam locks/
chuck body
light coat of oil SAE-20W machine oil periodically
All exposed metal
surfaces
light coat of oil SAE-20W machine oil frequentl y
9.0 Headstock Drain and fill SAE-20W machine oil
- after 30 days,
- ever y 2 month s
9.0 Gearbox Drain and fill SAE-20W machine oil
- after fi rst 3 mon th s,
- ever y 6 month s
9.0 Apron and Saddle Drain and fill SAE-20W machine oil
- after fi rst 3 months,
- then annually
9.0
Leadscrew; Feed Rod;
Spindle Direct ion
Control Axle
Fill at ball oilers SAE-20W machine oil
daily (1 or 2 times per
shift)
Travel Setting Rod Fill at (1) ball oiler SAE-20W machine oil as needed
9.0
Cross slide Fill at (2) ball oilers SAE-20W machine oil daily
9.0
Compound rest Fill at (2) ball oilers SAE-20W machine oil daily
9.0
Tool Post Fill at (1) ball oiler SAE-20W machine oil daily
9.0
Tailstock Fill at (1) ball oiler SAE-20W machine oil daily
9.0 Anti-dust felt on v-ways Clean kerosene I nspect weekly
10.0 Coolant reservoir
(follow coolant
manufacturer’s
directions)
Coolant of choice,
approx. 4 gallons
(follow coolant
manufacturer’s
directions)
14.10 Steady Rest
Lubricate finger shafts
and contact points
Lead-based grease before each use
14.11 Follow Rest
Lubricate finger shafts
and contact points
Lead-based grease before each use
14.6 V-belts
Inspect and tighten if
needed
periodically
25
16.0 Reference tables
16.1 Inch Lead And Feed
Table 2
t = metric threads
n = inch threads
m = modular threads
DP = diametral threads
26
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427 New Sanford Road
LaVergne, Tennessee 37086
Phone: 800-274-6848
www.jettools.com
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