Jet BDB-1340A User manual

OWNER'S MANUAL
BDB-1340A Belt Drive Lathe
(shown with optional stand)
WMH TOOL GROUP
Industrial Metalworking Products Division
300 S. Hicks Rd.
Chicago, IL 60067
Ph: 1-888-594-5866
▪ Fax: [phone]
E-mail: [e-mail]
www.wmhtoolgroup.com M-321360A 08/02

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This manual has been prepared for the owner and operators of a JET Belt Drive Lathe. Its purpose, aside
from machine operation, is to promote safety through the use of accepted correct operating and
maintenance procedures. Completely read the safety and maintenance instructions before operating or
servicing the machine. To obtain maximum life and efficiency from your lathe, and to aid in using the
machine safely, read this manual thoroughly and follow instructions carefully.
Warranty & Service
The WMH Tool Group warrants every product it sells. If one of our tools needs service or repair, one of
our Authorized Repair Stations located throughout the United States can give you quick service.
In most cases, any one of these WMH Tool Group Repair Stations can authorize warranty repair, assist
you in obtaining parts, or perform routine maintenance and major repair on your JET, Performax, Wilton,
or Powermatic tools.
For the name of an Authorized Repair Station in your area, please call 1-888-594-5866, or visit
www.wmhtoolgroup.com
More Information
Remember, the WMH Tool Group is consistently adding new products to the line. For complete, up-to-
date product information, check with your local WMH Tool Group distributor, or visit
www.wmhtoolgroup.com
WMH Tool Group Warranty
The WMH Tool Group (including Performax, Wilton and Powermatic brands) makes every effort to assure
that its products meet high quality and durability standards and warrants to the original retail
consumer/purchaser of our products that each product be free from defects in materials and workmanship
as follow: 1 YEAR LIMITED WARRANTY ON ALL PRODUCTS UNLESS SPECIFIED OTHERWISE.
This Warranty does not apply to defects due directly or indirectly to misuse, abuse, negligence or
accidents, normal wear-and-tear, repair or alterations outside our facilities, or to a lack of maintenance.
THE WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD SPECIFIED ABOVE,
FROM THE DATE THE PRODUCT WAS PURCHASED AT RETAIL. EXCEPT AS STATED HEREIN,
ANY IMPLIED WARRANTIES OR MERCHANTIBILITY AND FITNESS ARE EXCLUDED. SOME
STATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS, SO THE
ABOVE LIMITATION MAY NOT APPLY TO YOU. THE WMH TOOL GROUP SHALL IN NO EVENT BE
LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR FOR INCIDENTAL,
CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR
PRODUCTS. SOME STATES DO NOT ALLOW THE EXLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO
YOU.
To take advantage of this warranty, the product or part must be returned for examination, postage
prepaid, to an Authorized Repair Station designated by our office. Proof of purchase date and an
explanation of the complaint must accompany the merchandise. If our inspection discloses a defect, we
will either repair or replace the product, or refund the purchase price if we cannot readily and quickly
provide a repair or replacement, if you are willing to accept a refund. We will return repaired product or
replacement at WMH’S expense, but if it is determined there is no defect, or that the defect resulted from
causes not within the scope of WMH’S warranty, then the user must bear the cost of storing and returning
the product. This warranty gives you specific legal rights; you may also have other rights which vary from
state to state.
The WMH Tool Group sells through distributors only. Members of the WMH Tool Group reserve the right
to effect at any time, without prior notice, those alterations to parts, fittings, and accessory equipment
which they may deem necessary for any reason whatsoever.

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 WARNING
Read and understand the entire contents of
this manual before attempting set-up or
operation of this mill/drill.
1. This machine is designed and intended
for use by properly trained and
experienced personnel only. If you are
not familiar with the proper safe use of
lathes, do not use this machine until proper
training and knowledge has been obtained.
2. Keep guards in place. Safety guards must
be kept in place and in working order.
3. Remove adjusting keys and wrenches.
Before turning on machine, check to see
that any adjusting wrenches are removed
from the tool.
4. Reduce the risk of unintentional starting.
Make sure switch is in the OFF position
before plugging in the tool.
5. Do not force tools. Always use a tool at
the rate for which it was designed.
6. Use the right tool. Do not force a tool or
attachment to do a job for which it was not
designed.
7. Maintain tools with care. Keep tools sharp
and clean for best and safest performance.
Follow instructions for lubrication and
changing accessories.
8. Always disconnect the tool from the
power source before adjusting or
servicing.
9. Check for damaged parts. Check for
alignment of moving parts, breakage of
parts, mounting, and any other condition that
may affect the tools operation. A guard or
any part that is damaged should be repaired
or replaced.
10. Turn power off. Never leave a tool
unattended. Do not leave a tool until it
comes to a complete stop.
11. Keep work area clean. Cluttered areas
and benches invite accidents.
12. Do not use in a dangerous environment.
Do not use power tools in damp or wet
locations, or expose them to rain. Keep
work area well lighted.
13. Keep children and visitors away. All
visitors should be kept a safe distance from
the work area.
14. Make the workshop child proof. Use
padlocks, master switches, and remove
starter keys.
15. Wear proper apparel. Loose clothing,
gloves, neckties, rings, bracelets, or other
jewelry may get caught in moving parts.
Non-slip footwear is recommended. Wear
protective hair covering to contain long hair.
Do not wear any type of glove.
16. Always use safety glasses. Every day
glasses only have impact resistant lenses;
they are not safety glasses.
17. Do not overreach. Keep proper footing and
balance at all times.
18. Do not place hands near the chuck while
the machine is operating.
19. Do not perform any set-up work while
machine is operating.
20. Read and understand all warnings
posted on the machine.
21. This manual is intended to familiarize
you with the technical aspects of this
lathe. It is not, nor was it intended to be, a
training manual.
22. Failure to comply with all of these
warnings may result in serious injury.
23. Some dust created by power sanding,
sawing, grinding, drilling and other
construction activities contains chemicals
known to cause cancer, birth defects or
other reproductive harm. Some examples of
these chemicals are:
• Lead from lead based paint
• crystalline silica from bricks and cement and
other masonry products, and
• arsenic and chromium from chemically-
treated lumber.
24. Your risk from those exposures varies,
depending on how often you do this type of
work. To reduce your exposure to these
chemicals: work in a well ventilated area,
and work with approved safety equipment,
such as those dust masks that are
specifically designed to filter out microscopic
particles

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Specifications: BDB-1340A
Stock Number..............................................................................................................................321360A
Capacities:
Swing Over Bed................................................................................................................................... 13"
Swing Over Cross Slide................................................................................................................7-25/32"
Swing Through Gap....................................................................................................................... 18-3/4"
Length of Gap.................................................................................................................................. 8-1/8"
Distance Between Centers................................................................................................................... 40"
Headstock:
Hole Through Spindle...................................................................................................................... 1-1/2"
Spindle Nose.....................................................................................................................................D1-4
Taper in Spindle Nose ...................................................................................................................... MT-5
Spindle Taper Adapter...................................................................................................................... MT-3
Spindle Bearing Type................................................................................................ Taper Roller Bearing
Number of Spindle Speeds ....................................................................................................................12
Range of Spindle Speeds ......................................................................................................60-1240 rpm
Gearbox:
Number of Longitudinal and Cross Feeds .........................................................................................22/22
Range of Longitudinal Feeds (inch/rev)...........................................................................0.0018" - 0.0325"
Range of Cross Feeds (inch/rev).....................................................................................0.0006" - 0.0112"
Number of Inch Threads ........................................................................................................................38
Range of Inch Threads ........................................................................................................3-1/2 - 80 TPI
Number of Metric Threads .....................................................................................................................23
Range of Metric Threads........................................................................................................0.45 - 10mm
Leadscrew..............................................................................................................................7/8" × 8 TPI
Feed Rod Diameter .............................................................................................................................3/4”
Compound and Carriage:
Toolpost Type................................................................................................................................. 4-Way
Maximum Tool Size...................................................................................................................5/8" x 5/8"
Maximum Compound Slide Travel.................................................................................................2-11/16"
Maximum Cross Slide Travel ......................................................................................................... 6-5/16"
Maximum Carriage Travel.................................................................................................................... 35"
Tailstock:
Tailstock Spindle Travel................................................................................................................... 3-3/4"
Diameter of Tailstock Spindle........................................................................................................... 1-1/4"
Taper in Tailstock Spindle................................................................................................................. MT-3
Miscellaneous:
Steady Rest Capacity .............................................................................................................1/4" - 2-5/8"
Follow Rest Capacity.............................................................................................................1/4" - 2 -3/4"
Length of Bed...................................................................................................................................... 54"
Width of Bed.................................................................................................................................... 7-3/8"
Height of Bed....................................................................................................................................... 12"
Overall Dimensions.........................................................................................73-2/3"L x 30"W x 25-1/2"H
Main Motor.................................................................................................................................2HP, 1Ph
..................................................................................................................................................230V only
Net Weight (approx.).................................................................................................................. 1,070 lbs.
Shipping Weight (approx.).......................................................................................................... 1,280 lbs.

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Table of Contents
Warranty..................................................................................................................................................2
Warnings.................................................................................................................................................3
Specifications..........................................................................................................................................4
Table of Contents....................................................................................................................................5
Contents of the Shipping Container..........................................................................................................6
Uncrating and Clean-Up...........................................................................................................................7
Chuck Preparation...................................................................................................................................8
Lubrication..........................................................................................................................................9-10
Electrical Connections ...........................................................................................................................11
General Description..........................................................................................................................11-12
Controls............................................................................................................................................13-15
Break-In Procedure................................................................................................................................15
Speed Selection.....................................................................................................................................15
Feed and Thread Selection....................................................................................................................15
Change Gear Replacement....................................................................................................................16
Thread Cutting.......................................................................................................................................16
Thread and Feed Chart..........................................................................................................................17
Automatic Feed Operation and Feed Changes.......................................................................................18
Powered Carriage Travel.......................................................................................................................18
Saddle Adjustment.................................................................................................................................18
Cross Slide Adjustment..........................................................................................................................18
Compound Rest Adjustment ..................................................................................................................19
Tailstock Adjustment..............................................................................................................................19
Half Nut Gib Adjustment.........................................................................................................................19
Headstock Alignment........................................................................................................................19-20
Removing/Installing Gap Section ...........................................................................................................20
The specifications in this manual are given as general information and are not binding. WMH Tool Group
reserves the right to effect, at any time and without prior notice, changes or alterations to parts, fittings,
and accessory equipment deemed necessary for any reason whatsoever.

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Contents of the Shipping Container
1. Lathe
1. Steady Rest (mounted on lathe)
1. Follow Rest (mounted on lathe)
1. 6" Three Jaw Chuck (mounted on lathe)
1. 8" Four Jaw Chuck
1. 12" Face Plate (strapped to container)
3. Cam Locks
3. Socket Head Cap Screws
1. Tool Box (strapped to container)
1. Chip Tray
1. Lifting Hook
2. Lifting Blocks
Tool Box:
3. Open End Wrenches (9/11, 10/12,
12/14mm)
1. Touch-Up Paint
1. Oil Can
1. Hex Socket Wrench Set (2.5, 3, 4, 5, 6,
8mm)
2. Shear Pins
1. 33T Gear
1. 44T Gear
1. 46T Gear
1. 48T Gear
1. 52T Gear
2. T-Handle Chuck Wrenches
1. Tool Post Wrench
2. MT-3 Centers
1. MT-3 to MT-5 Sleeve
1 Cross Point Screwdriver
1. Flat Head Screwdriver
1. Key for Cam Locks
1. Owner's Manual
1. Part’s List
1. Warranty Card

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 WARNING
Machine is heavy! Use an appropriate
lifting device and use extreme caution when
moving the machine to its final location.
Failure to comply may cause serious injury!
Uncrating and Clean-Up
1. Finish removing the wooden crate from
around the lathe.
2. Unbolt the lathe from the shipping crate
bottom.
3. Choose a location for the lathe that is dry,
has good lighting, and has enough room to
be able to service the lathe on all four sides.
4. Assemble parts fastened to the crate bottom
used to lift the lathe. See Fig. 1. (Note:
Lifting parts are not tightened in Fig. 1 to
show detail.) Using a piece of leather or a
block of wood under the metal block to
protect the ways during lifting is highly
recommended. Do not lift the lathe by the
spindle. With adequate lifting equipment,
slowly raise the lathe off the shipping crate
bottom. Make sure lathe is balanced before
moving to sturdy bench or optional stand.
5. To avoid twisting the bed, the lathe's
location must be absolutely flat and level.
Bolt the lathe to the stand (if used). If using
a bench, through bolt for best performance.
6. Clean all rust protected surfaces using a
mild commercial solvent, kerosene or diesel
fuel. Do not use paint thinner, gasoline, or
lacquer thinner. These will damage painted
surfaces. Cover all cleaned surfaces with a
light film of Mobil DTEOil Heavy Medium.
7. Remove the end gear cover. Clean all
components of the end gear assembly and
coat all gears with a heavy, non-slinging
grease.
8. Using a machinist’s precision level on the
bedways, check to make sure lathe is level
side to side and front to back. Loosen
mounting bolts, shim, and tighten mounting
bolts, if necessary. The lathe must be level
to be accurate.

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Chuck Preparation (Three Jaw)
 WARNING
Read and understand all directions for chuck
preparation!
Failure to comply may cause serious injury
and/or damage to the lathe!
Note: Before removing the chuck from the
spindle, place a way board across the bedways
under the chuck
1. Support the chuck while turning three
camlocks 1/4 turn counter-clockwise with the
chuck key enclosed in 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 MobilithAW2. Cover the
spindle, cam locks, and chuck body with a
light film of Mobil DTEOil Heavy Medium.
5. Lift the chuck up to the spindle nose and
press onto the spindle. Tighten in place by
turning the cam locks 1/4 turn clockwise.
The index mark (A, Fig. 2) on the camlock
should be between the two indictor arrows
(B, Fig. 2). If the index mark is not between
the two arrows, remove the chuck and
adjust the camlock studs by either turning
out one full turn (if cams will not engage) or
turning in one full turn (if cams turn beyond
indicator marks).
6. Install chuck and tighten in place.

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Lubrication
 CAUTION
Lathe must be serviced at all lubrication
points and all reservoirs filled to operating
level before the lathe is placed into service!
Failure to comply may cause serious damage
to the lathe!
1. Headstock - Oil must be up to indicator
mark in both oil sight glasses (A, Fig. 3).
Top off with Mobil DTEOil Heavy Medium.
Drain oil completely by removing drain plugs
(B, Fig. 3) and refill by removing plugs (C,
Fig. 4) after the first three months of
operation. Then, change oil in the
headstock annually. Grease three fittings
(D, Fig. 5) with Mobil 1Synthetic Universal
Grease daily.
2. External Gears - Coat all gears with a
heavy, non-slinging grease, see Figure 5.
3. Center Back Gear Shaft - Remove the set
screw on the shaft (E, Fig. 4) and oil with a
couple of drops of Mobil DTEOil Heavy
Medium once weekly.
4. Quick Change Gearbox - Oil must be up to
indicator mark in oil sight glass (F, Fig. 3).
Top off with Mobil DTEOil Heavy Medium.
Fill by removing plug (G, Fig. 5). Drain oil by
removing drain plug (H, Fig. 5) and refill
after the first month of operation. Then,
change oil in the gearbox annually.

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5. Apron - Oil must be up to indicator mark in
oil sight glass (A, Fig. 6). Top off with Mobil
DTEOil Heavy Medium. Fill by removing
oil plug (B, Fig. 6). After the first three
months of operation, drain oil completely
(drain is on the bottom of the apron) and
refill with Mobil DTEOil Heavy Medium, or
equivalent to the indicator line. Then,
change oil annually.
6. Feed Selector - Lubricate ball oiler (C, Fig.
6) once daily with Mobil DTEOil Heavy
Medium.
7. Carriage - Lubricate two ball oilers (D, Fig.
6) once daily with Mobil DTEOil Heavy
Medium.
8. Thread Dial Indicator - Lubricate ball oiler
(E, Fig. 6) once daily with Mobil DTEOil
Heavy Medium.
9. Compound Rest - Lubricate three ball oilers
(F, Fig. 7) once daily with Mobil DTEOil
Heavy Medium.
10. Cross Slide - lubricate four ball oilers (G,
Fig. 7) once daily with Mobil DTEOil
Heavy Medium.
11. Longitudinal Feed Handwheel - Lubricate
ball oiler (H, Fig. 7) once daily with Mobil
DTEOil Heavy Medium.
12. Tailstock - Lubricate three ball oilers (I, Fig.
8) once daily with Mobil DTEOil Heavy
Medium.
13. Leadscrew/Feed Rod - Lubricate three ball
oilers once daily (J, Fig. 8) with Mobil DTE
Oil Heavy Medium.

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Electrical Connections
 WARNING
All electrical connections must be completed
by a qualified electrician!
Failure to comply may cause serious injury
and / or damage to the machinery and
property!
The BDB-1340A bench lathe is rated at 2HP,
1Ph, 230V only. Confirm power available at the
lathe's location is the same rating as the lathe.
Make sure the lathe is properly grounded.
General Description
Lathe Bed
The lathe bed (A, Fig. 9) is made of high grade
cast iron. By combining high cheeks with strong
cross ribs, a bed with low vibration and high
rigidity is realized. Two precision ground vee
slideways, reinforced by heat hardening and
grinding, are an accurate guide for the carriage
and headstock. The main drive motor is
mounted to the rear of the bed.
Carriage
The carriage (B, Fig. 9) is made from high
quality cast iron. The sliding parts are smooth
ground. The cross-slide is mounted on the
carriage and moves on a dove-tailed slide which
can be adjusted for play by means of the gibs.
The compound slide (C, Fig. 9), which is
mounted on the cross slide (D, Fig. 9), can be
rotated through 360°. The compound slide and
the cross slide travel in a dovetail slide and have
adjustable gibs. A four-way tool post (E, Fig. 9)
is fitted on the compound slide.
Headstock
The headstock (F, Fig. 9) is cast from high
grade, low vibration cast iron. It is mounted to
the bed by four bolts with two adjusting bolts for
alignment. In the head, the spindle is mounted
on two precision taper roller bearings. The
hollow spindle has Morse Taper #5 with a 1-1/2"
bore.
Four Way Tool Post
The four-way tool (E, Fig. 9) post is mounted on
the compound slide and allows a maximum of
four tools to be mounted simultaneously.
Remember to use a minimum of two clamping
screws when installing a cutting tool.

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Apron
The apron (A, Fig. 10) is mounted to the
carriage. In the apron a half nut is fitted. The
half nut gibs can be adjusted from the outside.
The half nut is engaged by use of a lever. Quick
travel of the apron is accomplished by means of
a bed-mounted rack and pinion, operated by a
hand wheel on the front of the apron.
Tailstock
The tailstock (B, Fig. 10) slides on a v-way and
can be locked at any location by a clamping
lever. The tailstock has a heavy-duty spindle
with a Morse Taper #3.
Leadscrew and Feed Rod
The leadscrew (C Fig. 10) and feed rod (D, Fig.
10) are mounted on the front of the machine
bed. They are connected to the gearbox at the
left for automatic feed and lead. They are
supported by bushings on both ends. Both are
equipped with brass shear pins.
Gear Box
The gear box (E, Fig. 10) is made from high
quality cast iron and is mounted to the left side
of the machine bed.
Steady Rest
The steady rest (F, Fig. 10) 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.
The sliding fingers require continuous lubrication
at the contact points with the workpiece to
prevent premature wear.
Follow Rest
The traveling follow rest (G, Fig. 10) is mounted
on the saddle and follows the movement of the
turning tool. Only two fingers are required as
the turning tool takes the place of the third. The
follow rest is used for tuning operations on long,
slender workpieces. It prevents flexing of the
workpiece from the pressure of the cutting tool.
The sliding fingers are set similar to the steady
rest, free of play, but not binding. The sliding
fingers require continuous lubrication at the
contact points with the workpiece to prevent
premature wear.

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Controls
1. Main On-Off Switch (A, Fig. 11) - Power is
off in the “0” position and on in the “I”
position.
2. Feed Direction Selector (B, Fig. 12) -
Arrows above the handle indicate saddle
travel direction when the chuck is rotating in
the forward direction or counter-clockwise
as viewed from the front of the chuck.
3. Feed Rod/Leadscrew Selector (C, Fig. 12)
- Use knob and lever to activate leadscrew
and feed rod.
4. Belt Tensioning Handle (D, Fig. 12) - Pull
forward to release tension on the drive belt.
Push toward the rear to tension the belt.
5. Feed Rate Selector (E, Fig. 12) - Two
knobs and two handles used to set desired
feed, or lead rates.
6. Forward/Reverse Lever (F, Fig. 13) - Pull
lever up for clockwise spindle rotation
(reverse). Push lever down for counter-
clockwise spindle rotation (forward). Neutral
position is a center detent and the spindle
remains idle.
7. Compound Rest Lock (G, Fig. 13) - Turn
hex nut clockwise to lock and counter-
clockwise to unlock.
8. Compound Slide Lock (H, Fig. 13) - Turn
set screw clockwise to tighten and counter-
clockwise to loosen.
9. Cross Slide Lock (I, Fig. 13) - Turn set
screw clockwise, and tighten to lock. Turn
counter-clockwise and loosen to unlock.
Caution: cross slide lock screw must be
unlocked before engaging automatic feeds
or damage to the lathe may occur.
10. Carriage Lock (J, Fig. 13) - Turn hex
socket cap screw clockwise and tighten to
lock. Turn counter-clockwise and loosen to
unlock. Caution: carriage lock screw must
be unlocked before engaging automatic
feeds or damaged to lathe may occur.

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11. Longitudinal Traverse Hand Wheel (A,
Fig. 14) - Rotate hand wheel clockwise to
move the apron assembly toward the
tailstock (right). Rotate the wheel counter-
clockwise to move the apron assembly
toward the headstock (left).
12. Feed Selector (B, Fig. 14) - Push lever to
the left and down to activate the crossfeed
function. Pull lever to the right and up to
activate the longitudinal function.
13. Half Nut Engage Lever (thread cutting)
(C, Fig. 14) - Move the lever down to
engage. Move the lever up to disengage.
14. Cross Traverse Handwheel (D, Fig. 14) -
Clockwise rotation moves the cross slide
toward the rear of the machine.
15. Compound Rest Traverse Handwheel (E,
Fig. 14) - Rotate clockwise or counter-
clockwise to move or position.
16. Tool Post Clamping Lever (F, Fig. 14) -
Rotate counter-clockwise to loosen and
clockwise to tighten. Rotate the tool post
when the lever is unlocked.
17. Threading Dial (G, Fig. 14) - Engage by
pushing into the leadscrew. Pull out to
disengage. The dial indicator and chart will
specify at which point a thread can be
entered.
18. Tailstock Quill Clamping Lever (H, Fig.
15) - Lift up to lock the spindle. Push down
to unlock.
19. Tailstock Clamping Lever (I, Fig. 15) - Lift
up lever to lock. Push down lever to unlock.
20. Tailstock Quill Traverse Handwheel (J,
Fig. 15) - Rotate clockwise to advance the
quill. Rotate counter-clockwise to retract the
quill.
21. Tailstock Off-Set Adjustment (K, Fig. 15) -
Three set screws located on the tailstock
base are used to off-set the tailstock for
cutting tapers. Loosen lock screw on
tailstock end. Loosen one side set screw
(K, Fig. 15) while tightening the other until
the amount of off-set is indicated on scale.
Tighten lock screw.

15
22. High Low Speed Selector (A, Fig. 16) -
Push toward the rear of the machine for the
high-speed range and pull toward the front
for the low speed range.
23. Lock Pin for the Back Gear (B, Fig. 17) -
Pull the pin out and turn 90°clockwise to
engage the back gear. Pull the pin out, turn
90°counter-clockwise, and rotate the chuck
until the pin seats to disengage the back
gear.
Break-In Procedure
During manufacturing and testing, this lathe has
been operated in the low R.P.M. range for three
hours.
To allow time for the gears and bearings to
break-in and run smoothly, do not run the lathe
above 580 R.P.M. for the first six hours of
operation and use.
Speed Selection
To change speeds, disconnect the lathe from
the power source and remove the tension by
pulling handle (C, Fig. 17) forward. Move the
belts (D, Fig. 17) to the desired location
according to the speed selection chart (E, Fig.
18). Tension the belts by moving the handle
towards the rear.
Feed and Thread Selection
1. Reference the feed and thread tables (F,
Fig. 18).
2. Move levers and knobs (G, Fig. 18) to the
appropriate position .

16
Change Gear Replacement
Note: the 32T x 127T x 48T gears are installed
in the end gear compartment when delivered
from the factory. This combination will cover
most inch feeds and threads under normal
circumstances. The additional gears found in
the toolbox are used for some metric threads
and feeds.
1. Disconnect the machine from the power
source.
2. Open the end cover on the left end of the
headstock.
3. Loosen the socket head cap screw (A, Fig.
19) and hex nuts (B, Fig. 19). Move the
quadrant out of the way.
4. Change gears (C, Fig. 19) to match the feed
and thread chart.
5. Thoroughly clean and install new gears.
6. Move the quadrant so the large gear
meshes with the smaller gears and tighten
to secure in place. Note: Make sure there
is backlash of 0.002” – 0.003” between
gears. Setting the gears too tight will cause
excessive noise and wear.
7. Close the cover and connect the machine to
the power source.
Thread Cutting
1. Set feed rate selectors (D, Fig. 20) in proper
position for the correct feed rate of the
thread to be cut.
2. Move knob (E, Fig. 20) to the “0” position to
disengage the feed rod.
3. Engage the half nut lever (F, Fig. 21).
4. The half nut lever and threading dial are
used to thread in the conventional manner.
The thread dial chart specifies at which point
a thread can be entered using the threading
dial.
5. To cut metric threads, the half nuts must be
left continually engaged once the start point
has been selected and the half nut is initially
engaged (thread dial cannot be used).

17
Thread and Feed Chart

18
Automatic Feed Operation and Feed
Changes
1. Move forward/reverse selector (A, Fig. 22)
up or down depending on desired direction.
2. Set the selector handle (B, Fig. 23) to the
“P” position and turn knob (C, Fig. 23)
counter-clockwise so the arrow is pointing
up to start the feed rod rotating.
Powered Carriage Travel
1. Push lever (D, Fig. 22) to the left and down
to engage crossfeed. Pull lever to the right
and up to engage longitudinal feed.
Saddle Adjustment
1. Loosen four hex nuts (E, Fig. 24) found on
the bottom rear of the cross slide.
2. Turn each of the four set screws (F, Fig. 24)
equally with a hex wrench until a slight
resistance is felt. Do not over tighten.
3. Move the carriage with the hand wheel and
determine if drag is to your preference.
Readjust the setscrews as necessary to
achieve the desired drag.
4. Hold socket set screw firmly with a hex
wrench and tighten hex nut to lock in place.
5. Move the carriage again and adjust if
necessary. Note: over adjustment will
cause excessive premature wear of the
gibs.
Cross Slide Adjustment
If the cross slide is too loose, follow procedure
below to tighten:
1. Loosen the rear gib screw (G, Fig. 24)
approximately one turn.
2. Tighten front gib screw a quarter turn. Turn
the cross slide handwheel to see if the cross
slide is still loose. If it is still loose, tighten
the front screw a bit more and try again.
3. When cross slide is properly adjusted, snug
rear gib screw. Do not over tighten. This
will cause premature wear on the gib and
mating parts.

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Compound Rest Adjustment
Follow the same procedure, as the cross slide
adjustment.
Tailstock Adjustment
If the handle will not lock the tailstock securely,
use the following procedure:
1. Lower handle to the unlocked position.
2. Slide tailstock to an area that will allow you
to reach under the tailstock.
3. Tighten tailstock clamping nut 1/4 turn, and
re-test for proper locking. Repeat as
necessary.
Half Nut Gib Adjustment
1. Remove the thread dial assembly by
unscrewing the screw (A, Fig. 25).
2. Loosen three hex nuts (B, Fig. 25) found on
the side of apron, and turn three set screws
(C, Fig.25) equally with a hex wrench.
3. Adjust properly for wear and play. Hold
socket set screw firmly with a hex wrench
and tighten hex nut to lock in place. Note:
over adjustment will cause excessive
premature wear on gib and mating parts.
Headstock Alignment
The headstock has been aligned at the factory
and should not require adjustment. However, if
adjustment is deemed necessary, follow the
procedure below to align the headstock.
1. Using an engineer's precision level on the
bedways, make sure the lathe is level side
to side and front to back. If the lathe is not
level, correct to a level condition before
proceeding. Re-test alignment if any
leveling adjustments were made.
2. From steel bar stock of approximately two
inches in diameter, cut a piece
approximately eight inches long.
3. Place two inches of bar stock into chuck and
tighten chuck. Do not use the tailstock or
center to support the other end.
4. Set up and cut along five inches of the bar
stock.

20
5. Using a micrometer, measure the bar stock
next to the chuck and at the end. The
measurement should be the same.
6. If the measurements are not the same and
adjustment is required, loosen the four bolts
that hold the headstock to the bed. Do not
loosen completely; some drag should
remain.
7. Loosen two hex nuts found on the two
adjusting bolts located on the backside of
headstock just above the motor mount
bracket. Adjust the bolts for alignment and
tighten hex nuts. Tighten the headstock
bolts and make another cut. Keep adjusting
screws after each cut until the bar stock
measurements are the same. Tighten all
headstock bolts and jam nuts on adjusting
screws.
Removing Gap Section
1. Using an open end wrench, tighten the two
hex nuts (A, Fig. 26). This will cause the
taper pins (B, Fig. 26) to release. Remove
the taper pins.
2. Remove the four hex socket cap screws (C,
Fig. 26) with a hex key wrench.
3. Gap section can now be removed.
Installing Removable Gap Section
1. Clean the bottom and the ends of the gap
section thoroughly.
2. Set gap section in place and align.
3. Remove nuts (A, Fig. 26) from the taper
pins (B, Fig. 26).
4. Slide taper pins in their respective holes and
seat using a mallet. Install nuts on the taper
pins finger tight.
5. Install four socket head cap screws (C, Fig.
26) and tighten securely.