Harbor Freight Tools 43681 User's Manual

12” x 37” Gap Bed Lathe
Model 43681
Assembly And Operation Instructions
(Stand Not Included)
Due to continuing improvements, actual product may differ slightly from the product described herein.
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
To prevent serious injury, read and understand
all warnings and instructions before use.
Copyright© 2006 by Harbor Freight Tools®. All rights reserved. No portion of this manual
or any artwork contained herein may be reproduced in any shape or form without the
express written consent of Harbor Freight Tools.
For technical questions or replacement parts, please call 1-800-444-3353.
REV 12/06; 1/07
Specifications
Motor: 2HP, 1700 RPM, Reversible
Max. Tool Shank Size: 3/4” x 3/4” Lathe Bit
Power Required: 220 V / 60 Hz, 1-Phase
Tool Post Travel: Max. 3.5” , 0.001” per scale
Drive: Belt/Gear
Cross Slide Travel: 5.9”, 0.002” per scale
Swing Over Bed: 12”
(Total Cut)
Swing Over Gap: 18.8”
Longitudinal Feed Range: 0.005” - 0.0165” /R
Width of Gap: 7”
(16 Steps)
Center to Center: 37”
Cross Feed Range: 0.0014” - 0.0049 /R
Spindle Bore Taper: MT5
(16 Steps)
Spindle Bore: 1.5”
Tailstock Travel: Max 3.6”
Three Jaw Chuck Diameter: 6”
Tailstock Spindle Bore Taper: MT3
Spindle Speed: 18 Speed
Thread Indicator: Yes
Spindle Speed Range:
Thread Feeding:
72; 82; 147; 168; 240; 275; 325; 370; 415; 476; SAE: 4 - 112 TPI, Total 40 Setting
660; 760; 850; 975; 1080; 1240; 1380; 1600 Metric: 0.25 - 7.5 mm, Total 19 Setting
Bed Way Heat Treatment: 46-52 HRC
Net Weight: 838 lb.
Tool Post Type: 4-Position
Accessories
(1) Steady Rest
(1) Follow Rest
(2) Dead Center: #3
(1) Center Sleeve: #5 / 3
(1) Live Center: MT3
(1) 6” 4-Jaw Chuck
(1) Back Plate for 4-Jaw Chuck
(1) Tool Post Wrench
(1) Double End Wrenches 13-16
(5) Hex Wrenches (3, 4, 5, 6, 8 mm)
(1) Screwdriver
(1) Oil Gun
(5) Changing Gears: T30, T32, T40 (2
pcs), T127/120
(1) Face Plate 9-3/4”
(1) Splash Guard
(1) Oil Tray
Save this manual
You will need the manual for the safety warnings and cautions, assembly instructions, operating procedures, maintenance procedures, trouble shooting, parts list, and diagram. Keep
your invoice with this manual. Write the invoice number on the inside of the front cover.
Keep both this manual and your invoice in a safe, dry place for future reference.
READ ALL INSTRUCTIONS BEFORE USING THIS TOOL!
Notice
The Warnings, Cautions, and Instructions discussed in this instruction manual cannot cover all
possible conditions and situations that may occur. It must be understood by the operator that
common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.
SKU 43681
For technical questions, please call 1-800-444-3353.
REV 02/07
Page SAFETY WARNING & CAUTIONS
READ ALL INSTRUCTIONS BEFORE USING THIS TOOL!
1.
KEEP WORK AREA CLEAN. Cluttered areas invite injuries.
2.
OBSERVE WORK AREA CONDITIONS. Do not use tools in damp, wet, or poorly lit
locations. Don’t expose to rain. Keep work area well lit. Do not use electrically powered
equipment in the presence of flammable gases or liquids.
3.
KEEP CHILDREN AWAY. Children must never be allowed in the work area. Do not let
them handle machines, tools, or equipment.
4.
STORE IDLE EQUIPMENT. When not in use, tools must be locked up in a dry location
to inhibit rust. Always lock up tools and keep out of reach of children.
5.
DO NOT FORCE THE TOOL. It will do the job better and more safely at the rate for
which it was intended. Do not use inappropriate attachments in an attempt to exceed
the tool’s capacities.
6.
USE THE RIGHT TOOL FOR THE JOB. Do not attempt to force a small tool or attachment to do the work of a larger industrial tool. There are certain applications for which
this tool was designed. Do not modify this tool, and do not use this tool for a purpose
for which it was not intended.
7.
Dress Properly. Do not wear loose clothing or jewelry, as they can be caught in
moving parts. Non-skid footwear is recommended. Wear restrictive hair covering to
contain long hair. Always wear appropriate work clothing.
8.
USE EYE, EAR and breathing PROTECTION. Always wear ANSI approved impact safety goggles if you are producing metal filings or wood chips. Wear an ANSI
approved dust mask or respirator when working around metal, wood, and chemical
dusts and mists. Use ANSI approved ear protection when working in a loud or noisy
environment.
9.
DO NOT ABUSE THE POWER CORD. Protect the power cord from damage, either
from impacts, pulling or corrosive materials. Do not yank machine’s cord to disconnect
it from the receptacle.
10.
DO NOT OVERREACH. Keep proper footing and balance at all times. Do not reach
over or across running machines.
11.
MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and safer performance. Follow instructions for lubricating and changing accessories. Inspect power
cord periodically and, if damaged, have it repaired by an authorized technician. Control
handle and power switch must be kept clean, dry, and free from oil and grease at all
times.
12.
REMOVE ADJUSTING KEYS AND WRENCHES. Be sure that keys and adjusting
wrenches are removed from the tool or machine work surface before operation.
SKU 43681
For technical questions, please call 1-800-444-3353.
Page 13.
AVOID UNINTENTIONAL STARTING. Be sure that you are prepared to begin work
before turning the start switch on.
14.
STAY ALERT. Watch what you are doing. Do not operate this machine when you are
tired.
15.
Do Not operate this machine while under the influence of alcohol,
drugs, or prescription medicines.
16.
CHECK FOR DAMAGED PARTS. Before using any tool, any part that appears damaged
should be carefully checked to determine that it will operate properly and perform its
intended function. Check for alignment and binding of moving parts, any broken parts
or mounting fixtures, and any other condition that may affect proper operation. Any part
that is damaged should be properly repaired or replaced by a qualified technician. Do
not use the tool if any switch does not turn on and off properly.
17.
REPLACEMENT PARTS AND ACCESSORIES. When servicing, use only identical
replacement parts intended for use with this tool. Replacement parts are available from
Harbor Freight Tools. Use of any other parts will void the warranty.
Special Warnings when using this Bench Lathe
Using this Bench Lathe may create special hazards.
Take particular care to safeguard yourself and those around you.
Electrical Safety. Never operate any tool if there is an electrical hazard. Never operate an electrical tool in wet conditions. Never operate a tool with an improper electrical cord
or extension cord. Never operate an electrical tool unless you are plugged into a properly
grounded outlet, which supplies 115 Volts at 60 Hz. We recommend you use a circuit
which is protected by an appropriate circuit breaker.
Ejected Material. Use safe practices to avoid injury from ejected material. Because the
lathe and the workpieces turn at high speed, there is a danger of being injured by materials that may be ejected. Always wear ANSI-certified eye protection. Never attempt to work
on any item if it is not adequately held. Always stand to one side of the plane in which the
materials are spinning, to avoid being hit if an item is ejected. Never allow bystanders to be
in the proximity of the lathe while in operation.
Entanglement. Use extreme caution to prevent loose materials from being caught in
the machine. Never operate this lathe with loose clothing, long hair, jewelry, or other items
which may become caught in the tools or workpieces. In case of entanglement, press the
OFF switch immediately.
NOTICE: No list of warnings can be all inclusive. The operator must supply
common sense, and operate this tool in a safe manner.
SKU 43681
For technical questions, please call 1-800-444-3353.
Page Basic Components and Features of your #43681 Gap Bed Lathe
Reference
A
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
Description
Press Switch
Emergency Stop Control
Indicator Light
Gear Box
Direction Control
Speed Control A
Speed Control B
Oil Gauge
Chuck
Bedway
Tool Holder
Tool Post Clamping Lever
Compound Slide
Steady Rest
Tailstock Quill
Tailstock Clamping Lever
Tailstock
Tailstock Handwheel
Reference
T
U
V
W
X
Y
Z
AA
BB
CC
EE
FF
GG
HH
KK
MM
Description
Tailstock Base
Lead Screw
Control Lever
Thread Dial
Half Nut Lever
Cross/Longitudinal Feed Lever
Cross Slide Handwheel
Saddle Handwheel
Feedrod & Leadscrew
Exchange Lever
Change Gear Control A
Change Gear Control B
Oil Tray
Power Cord
Leadscrew Chart
Splash Guard
Chuck Protection Cover
Parts references in this text:
When parts are identified with letters, please refer to the diagram on this page.
When parts are identified with numbers, refer to parts lists and diagrams starting on page 16.
SKU 43681
For technical questions, please call 1-800-444-3353.
Page Unpacking, Assembly, and Set up.
Basic assembly and adjustment of your new lathe was completed before being shipped.
Final assembly and adjustments must be made before operating your new lathe.
First find a suitable location for your lathe.
1.
The floor or work table which you place your
lathe on must be level, solid, and resistant to
vibration.
2.
Your lathe should be positioned in an area which
is protected from the weather, especially water
and moisture.
3.
You should provide good light to work in, and Fig.1 Mounting bolts in the headstock.
adequate space to operate and maintain the
machine, as well as to handle work materials which will be loaded in the machine.
4.
You will need an appropriate power supply to operate the machine, which requires 220
V~, 60 Hz, single phase current, and must be protected by a suitable circuit breaker.
WARNING: Consult a licensed electrician if you are not completely sure that your power
supply is correct and safe.
Complete Assembly.
You will have to assemble the lathe onto the oil tray
(FF) and then onto a bench top (not included) or
metal stand.
Please note: The bench top must be able to withstand the weight of the Lathe (838 lb.) as well as
the weight of the workpiece. Do not exceed the
maximum weight capacity of 1320 lb.
If you choose to use a metal stand with this
Lathe, the only Stand that will fit with this Lathe
is SKU 95647 (sold separately).
Fig.2 Mounting bolts in the tailstock.
1.
Check to be sure that the bench is level and stable on the shop floor. If you need to repair
the floor, do it now to be sure you have a solid, level surface to mount the machine.
2.
Once the work bench is positioned properly on a solid level floor, place the oil tray (FF)
on the bench. Using the mounting holes on the oil tray (FF) as reference, drill matching 1/2” holes into the wood bench. Always check to make sure no obstructions are in
the drilling path.
3.
Place the angled iron levelers between the oil tray (FF) and the bench top. Check the
level and position of the bench top again to be sure that when the Lathe is positioned
on the bench and oil tray (FF) it will be level, solid and aligned with the mounting holes
in the bench and tray.
4.
Using a drill and other hardware (not included) bolt the work bench to the floor before
putting Lathe on the workbench to keep the bench and Lathe in place during use.
SKU 43681
For technical questions, please call 1-800-444-3353.
Page Hoisting and Leveling this machine
WARNING: DO NOT ATTEMPT TO LIFT THE LATHE BY YOURSELF.
This tool weighs over 800 lb., and cannot be lifted safely by one or several strong men.
Be sure this lathe is balanced on the hoist or lift you will use to move it before moving.
1.
Before hoisting, lifting or moving this machine, move the tailstock and apron to the far
right end of the bedway (away from the headstock) and lock them in place there. This
will help to balance the overall mass of the machine near the center.
2.
Use pads (not included) to protect the lathe from damage by the equipment used to hoist it.
3.
Use a hydraulic lift, fork lift, or hoist to position the lathe onto the bench (or SKU 95647 Stand).
4.
When the lathe is positioned on the oil tray and bench, align the mounting holes and
drop in the mounting bolts.
5.
Check the level of the machine. Using a spirit level, check to be sure that the bed of the
lathe is level both horizontally and front to back. If there is any out of level, correct it now.
Depending on your installation, use the angled iron levelers to adjust the machine into
exact level front to back and side to side. Check both ends of the tool before being satisfied. Be sure the machine is level, positioned solidly, and is resistant to vibration.
6.
Fasten the lathe to the bench and oil tray (FF) by inserting a bolt through a lock washer
from the inside of the bench and upward through the oil tray and lathe. Fasten with
a washer and nut. Repeat this for each of the four mounting holes in the headstock,
and both mounting holes in the tailstock. Tighten securely. Recheck and readjust level
if required.
Note: Periodically recheck the level of the machine to ensure that it remains level while in use.
1704
460
605
630
Figure 3. Overall dimensions of this machine, and oil tray dimensions. Dimensions
are given in millimeters. Measure your own
machine for any variations before using
these dimensions.
SKU 43681
For technical questions, please call 1-800-444-3353.
Page The Headstock
The headstock includes a Gear box (E) which contains gears and a belt drive. The gears are controlled by controls (F), (G), and (H). The belt drive
transmits the motor power to the drive system of the
machine.
1.
The motor and drive belt are installed and adjusted when delivered. However, you should
check the adjustment of the drive belt before
using this lathe.
2.
Check the belt tension by pressing in the middle
with your finger. You should be able to depress
it approximately 1/2 inch. If the belt is too tight,
it will wear the bearings, and if too loose, it will
slip on the pulleys and wear out prematurely.
3.
If it is necessary to adjust the belt tension, do so
by adjusting the bolt and locknut assembly on
the underside of the motor. The motor mounted
on the back of the headstock.
4.
Four additional change gears are included for
use in cutting metric and SAE threads. Refer
to the lead screw chart on the headstock for
the gears required for the thread pitches you
want.
Please refer to the section on threading for
more information.
Fig.4 Inside the Gear Box.
Fig.5 Motor mount and adjustment.
Fig.6 Headstock Controls.
SKU 43681
For technical questions, please call 1-800-444-3353.
Page SPEED AND POWER CONTROLS
urn your lathe on and off, and control its speed and direction from the main control panel.
Speed and Power Controls
r Switch
SPEED
AND
You can
and off POWER
and
speed
and direction
from
the main control panel.
the power switch
toturn
turnlathe
the on
machine
ON.control
PushCONTROLS
the switch
again to
turn
n turn your lathe on and off, and control its speed and direction from the main control panel.
ne OFF.
The Power Switch
ndicator
Light
(D) will be on when the machine is running.
wer Switch
1. can
Turn
the the
Emergency
Stop
Switch (C)the
clockwise;
the Indicator
emergency,
by pressing
Emergency
Stop
sh
the poweryou
switch
tostop
turn
themachine
machine
Push
againoperating
to turn
Light
(D) will
light
up. TheON.
Spindle
willthe
notswitch
turn without
C).
hine OFF.
the Control Lever (V).
e Indicator Light (D) will be on when the machine is running.
2. youThe
Switch
(A) is used
to run the
spindle
temporarily
an emergency,
canPress
stop the
machine
by pressing
the
Emergency
Stopto
allow
the
gears
to
engage
when
changing
speed
gears.
When
(C).
you release the switch, the spindle will stop.
Fig.7 Power Switch.
3.
In an emergency, you can stop the machine by pressing the
d Direction Controls
Emergency Stop Control (C).
not change the settings of these controls if the motor is running.
Fig.7 Power Switch.
Fig.7 Power Switch.
Speedchanging
and Direction
Controls
the Direction
power before
these
settings.
and
Controls
Note: Do not change the settings of these controls if the motor is running.
e Spindle
Speed
can
be controlled
by
setting
themotor
Speed
Do
not change
theOFF
settings
of these
controls
if the
is Control
running.knobs (G) and (H). Refer
Shut
the power
before
changing
these
settings.
rt on
the
Headstock
the rightthese
of the
knobs to determine the proper setting for the desired
FF
the
power
before to
changing
settings.
The Spindle Speed can be controlled by setting the Speed Control knobs (G) and (H).
The
Spindle
can
bethe
controlled
by Headstock
setting
Control
knobs
(G)
and (H).
Refer
tation
speed.Speed
Nine
speeds
are
from the
64
to right
1500
Theto direction
may
be
Refer
to
chartpossible
on the
to Speed
the
of rpm.
the knobs
determine
the
proper
hart
onDirection
the Headstock
to for
the
right
of the
knobs
to determine
the proper
setting
for thefrom
desired
setting
the
desired
spindle
rotation
speed. Eighteen
speeds
are possible
72 to
using
Control
(F).
rotation speed. Nine
speeds
possible
from
64 to using
1500Direction
rpm. The
direction
may be
1600 RPM.
Theare
direction
may be
controlled
Control
(F).
ed using Direction
ControlGearbox
(F).
Quick Change
ange Gearbox
The headstock is equipped with a quick change gearbox to control the rate of the spindle to
tock is equipped
with a quick change gearbox to control the rate of the spindle to the
Change
Gearbox
the lead screw and feed rod, when it is used to cut threads, or for turning or facing.
w
and feed
rod, whenwith
it isa used
cut threads,
or to
forcontrol
turningthe
orrate
facing.
adstock
is equipped
quicktochange
gearbox
of the spindle to the
1.
Controls
(CC)
and
(EE)
may
be
used
ols (CC)
androd,
(EE)when
may itbeisused
in
combination
to for turning or facing.
rew
and feed
usedto
tocontrol
cut threads,
in combination
the feedor
rate.
ol
the feed
refer
the
lead
screw
chart
ntrols
(CC)rate.
and Please
(EE)
may
beto
used
in
combination
to
Please
refer
to
the lead
screw
chart
(HH)
ntrol
thedesired
feed rate.
Please
refer tosetting.
the lead screw chart
for the
setting.
for the desired
H)
for the
desired
setting.
hange
gears
may need
to be replaced in order to
2.
The
change
may need
to be
e
change
gears
may
need
to
begears
replaced
in order
to reve the correct setting.
Be to
sure
the
machine
is turned
placed
achieve
the correct
setting.
the correctfrom
setting.
suresupply
the machine
is turned
dieve
is unplugged
its Be
power
beforeoff
Be sure
the machine
is turned
and is
and is unplugged from
its power
supply
before
unplugged
from
its
power
supply
before
pting to replace the gears. Select the gears required
empting to replace replacing
the gears.the
Select
theSelect
gearsthe
required
gears.
gears
the
lead
screw
chart.
m the lead screw chart.
required from the lead screw chart.
Lever
(BB)
is is
used
to to
activate
and
control
exchange
Exchange
Lever
(BB)
used
activate
and
control
3.
When
the
Exchange
Lever
(BB)
is in the
rection
of of
rotation.
When
thethe
lever
is is
ininthe
middle
direction
rotation.
When
lever
the
middle
middle position, the Lead Screw (118)
on,
thethe
lead
screw
is is
parked.
When
thethelever
ition,
lead
screw
parked.
When
leverisistoto
and Feeding Rod (107) are locked. When
right,
lead
screw
running,
and
can
ght,
thethe
lead
screw
is is
running,
and
thethe
can
Exchange
Lever
(BB)
ismachine
tomachine
the right,
the
used
to
turn
threads.
When
the
lever
is
to
the
left,
the
(118)isistorunning
and
ed to turn threads. Lead
WhenScrew
the lever
the left,
thethe
dcrew
screw
is
reversed,
and
the
machine
may
be
used
for.
machine
can
be
used
to
turn
the
threads.
is reversed, and the machine may be used for.
Fig.8Lead
LeadScrew
Screw Chart.
Chart.
When Exchange
(BB) is to the
ernal or external machining
or faceLever
cutting.
Fig.8
Fig.8
Lead Screw
Chart.
al or external machining
or
face
cutting.
left,or
the
Feeding Rod
is running
and the
e half nut is engaged
disengaged
using
the Half
Nut Lever
alf
nut
is
engaged
or
disengaged
using
the
Half
Nut
Lever to function properly.
machine
can
be
used
set
for
automatic
. Note that the half nut must be engaged for the lead feeding.
screw
Note that the half nut must be engaged for the lead screw to function properly.
4.
The half nut is engaged or disengaged using the Half Nut Lever (X). Note that the half
nut must be engaged for the lead screw to function properly.
SKU 43681
SKU # 43681
KU # 43681
For technical questions, please call 1-800-444-3353.
Page Apron
The function of the Apron is to support the toolpost, and to be carried along the
workpiece by the lead screw.
1.
Use the Control Lever (V) to start the motion of the Spindle, and to rotate it forward
or reverse.
2.
To operate the lever, push it toward the
headstock, then move it up or down. Moving the lever down will cause the spindle
to rotate forward, moving it up will cause
the spindle to rotate in reverse. Placing the
lever in the middle will cause the spindle
not to rotate.
3.
The Half Nut Lever (X) for engaging the
lead screw is mounted on the right side
of the apron.
4.
The Half Nut Lever (X) is used to engage
or remove the half nut from the lead screw.
This lever is mounted on the front of the
apron. Engage the half nut only when moving the apron in a longitudinal direction
along the workpiece.
Fig.9 The Apron.
5.
The Cross/Longitudinal Feed Lever (Y) is used to determine the direction of travel of
the tool on the workpiece. With the lever up, and the gear engaged, the apron will travel
in a longitudinal direction along the workpiece; for example when threading. With the
lever down, and the half nut disengaged, the tool post will travel horizontally across the
workpiece; for example when face cutting.
6.
Note: The interlock will prevent the half nut from being engaged when the Feed Lever
(Y) is down in the cross feed position.
7.
For threading, put the Feed rod & Leadscrew Exchange Lever (BB) to the right to start
the lead screw, then move the Cross/Longitudinal Feed Lever (Y) to the center, and
engage the half nut, using the Half Nut Lever (X). This will cause the lead screw to
rotate, and the apron to move to the right.
8.
You can also control the direction of travel of the apron using the Direction Control (F).
Rotating this control to the right will cause the carriage to move to the right. Rotating
this control to the left will cause the apron to move to the left.
SKU 43681
For technical questions, please call 1-800-444-3353.
Page 10
The Threading Dial
When the threads on the lead screw and on the workpiece
are not in an integer ratio, it is necessary to use the threading dial to control successive cuts. Determine this ratio by
dividing the desired TPI of the workpiece (for example 24 TPI)
by the thread pitch of the lead screw (8 TPI). This example
results in an integer ratio of 3:1. A desired thread pitch of 26
TPI (for example) on the workpiece would require use of the
threading dial.
When the threads on the workpiece are not in an in1.
teger proportion to the threads on the lead screw, it is
necessary to operate the half nut intermittently. This is
controlled by using the threading dial.
The Threading Dial (W) is located on the right side of
2.
the apron.
The dial is marked with four numbered lines, 1, 2, 3,
3.
and 4. Between each numbered line is an unnumbered
line. On the dial there is also a fixed reference line.
When the threading dial is engaged with the lead screw,
4.
the dial will rotate.
There is an instruction plate attached to the threading
5.
Fig.10 Threading Dial.
dial explaining the use of the dial, depending on the
specific thread you are cutting.
For thread cutting, engage the half nut at the appropriate numbers shown on the thread6.
ing dial. 1-4 means the half nut can be engaged at any of the numbered lines 1, 2, 3,
or 4. For successive cuts, only numbered lines must be used. 1-3 / 2-4 on the scale
means that the half nut can only be engaged on 1 and 3 or 2 and 4 for successive cuts.
For example, if you engage the half nut on “1” on the first cut, you can only engage it on
“1” or “3” on following cuts. If you engage it on “2” on the first cut, you can only engage
it on “2” and “4” on successive cuts.
1-8 means the half nut cannot be engaged on any lines, numbered or unnumbered.
7.
If the half-nut is engaged throughout the initial cut, there is no need to use the thread8.
ing dial. Simply disengage the half nut, back the tool to the starting point, reengage
the half nut and start over.
Four-Position Tool Rest
The four position tool rest can be used to hold up to
four tools. It is controlled by the three handwheels on
the Apron, the Saddle Handwheel (AA), the Cross Slide
Handwheel (Z) and the Compound Slide Handwheel
(N).
Tools are held in place on each side of the tool holder
1.
by two or three of the bolts on that side. Tools must fit
into the tool groove.
Fig.11 Tool Post.
When installing tools, check to see that the cutting
2.
edge is properly aligned with the rotating direction of the workpiece.
The tool post can be rotated by loosening the Tool Post Clamping Lever (M), rotating
3.
the tool post, and retightening the lever.
SKU 43681
For technical questions, please call 1-800-444-3353.
Page 11
Compound Slide
The tool is moved along the workpiece by the motion of the apron and its components. The apron may be power-driven by the lead screw, or may be moved by hand
using the handwheels.
1.
The Saddle Handwheel (AA) may be used to move
the apron with its attached tool post and tools along
the rotating axis of the workpiece. This is used to
make longitudinal cuts.
2.
The Cross Slide Handwheel (Z) is used to move
the tool post horizontally across the axis of the
workpiece. This motion is used to make face cuts
at a 90 degree angle to the longitudinal axis of the
workpiece.
3.
Cuts made at any angle other than 90 degrees to
the axis are accomplished by using the Compound
Slide Handwheel (N).
Fig.12 Compound Slide.
4.
To use the compound slide, loosen the bolt holding it in place on the cross-slide, rotate
it into the desired position, then retighten the bolt.
5.
The cutting tool can be moved into the workpiece by operating the handwheel.
Chuck and Faceplate
This lathe may be operated using either
chuck or faceplate to hold the workpiece.
1.
Chucks and faceplates are mounted on the
arbor shaft using a threaded connection.
Open the gear box, and using a suitable
wrench, hold back the arbor shaft to prevent
it from turning. Grip the chuck or faceplate,
and rotate it in a counter-clockwise direction
to unthread it from the arbor shaft.
2.
When re-installing a chuck or faceplate, be
sure to put light grease on the threaded end
of the arbor shaft to ease installation and
removal of the chuck or faceplate.
3.
You are provided with both three and four
jaw chucks. Each may be used to hold
Fig.13 Chuck.
workpieces by clamping from the outside,
or by expanding on the inside of tubes and hollow pieces. To tighten the jaws, rotate
any of the internal hex head bolts in the side of the chuck with an appropriate size hex
wrench. Chucks are self centering, and will align concentric workpieces with the axis
of rotation of the arbor shaft.
4.
Faceplates are used typically to hold larger or non-round pieces. Work pieces may be
attached to the faceplate by a variety of methods including clamps, bolts and screws.
It is critical that the centerpoint of the workpiece be exactly aligned with the center of
rotation of the arbor shaft for accurate turning.
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Tailstock
The tailstock slides along the bed way freely, and may be used to secure the free end
of a rotating workpiece.
The tailstock is clamped to the bedway using
1.
the Tailstock Clamping Lever (Q).
The Quill (P) can be rotated inward and outward,
2.
using the Tailstock Handwheel (S). The Quill can
be locked in place using the Quill Lock Lever.
The quill is shipped with a “dead end” which may
3.
be inserted into the quill. “Dead end” means
that the end remains stationary, and allows the
workpiece to rotate upon it. To reduce friction,
it is a good idea to apply a little grease to the
Fig.14 Tailstock.
contact between the workpiece and the dead
end. Check this lubrication from time to time.
“Live ends” are available to fit this machine and may be
purchased separately. Live ends incorporate a bearing
to reduce friction between the workpiece and the quill.
Before using your lathe, it is important to check the
4.
alignment of the tailstock with the arbor spindle. Do
this by placing a precisely machined rod in the chuck,
and checking its alignment with the center of the quill.
Accurate measurements may be made by mounting
a dial indicator to the bedway, and making measurements on the rod near the headstock, and near the
tailstock. These measurements must be exactly alike
Fig.15 Follow Rest.
for the tailstock to be properly aligned.
Adjustments may be made by loosening the tailstock
5.
lock lever, then adjusting the position of the tailstock with the alignment screw (512).
Retighten the lock lever, and recheck the alignment before proceeding.
Follow Rest and Steady Rest
These are useful supports for your workpiece, which help
you improve machining accuracy.
The Follow Rest is attached to the Apron, and fol1.
lows the movement of the apron as the workpiece is
machined.
The Steady Rest is attached to the bedway, and re2.
mains in place as the workpiece turns within it.
Install these rests as needed to support the work3.
piece.
Adjust the brass holders within the rests to lightly ride
4.
upon the workpieces. It is advisable to apply a little
grease to the points of the brass holders to reduce
friction between them and the workpiece.
The rests should be cleaned and stored in a dry clean
5.
place when not in use.
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Fig.16 Steady Rest.
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Page 13
Lubrication
Headstock Lubrication.
1.
The headstock gears should be lubricated with No. 70 (HL-70) Gear Compound. Check
them periodically, and apply lubrication whenever they appear dry. Do not apply excessive grease, since you do not want to get grease on the drive belt.
2.
The oil in the headstock should be changed regularly. When the machine is new,
change the oil after the first 15 days of use. Change it again after the next 45 days of
use. Thereafter, change the oil after each 6 months. To change the oil, open the drain
plug on the underside of the headstock. After draining, replace the drain plug and refill
with clean lubricating oil until the oil level is at the red line on the oil gauge. Use standard 30 weight motor oil. Dispose of waste oil properly, and in accordance with local
regulations.
3.
If during operation the oil level is below the red line, stop machining and add oil until
the level is at the red line.
Overall Lubrication.
Lubricate the parts indicated in this diagram periodically with light grease. Check before
each use to ensure that the machine is properly lubricated.
Fig. 17 Lubrication Chart.
Lubricate the indicated areas
with a light grease regularly.
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Page 14
Maintenance
WARNING: For your own safety, turn the switch OFF and remove plug from electrical
outlet before performing any maintenance work on the lathe.
1.
Frequently blow out any dust accumulation inside the motor.
2.
A coat of automotive wax to the bed will help keep the surfaces clean, and allow the
tool rest and tailstock to move freely.
3.
If the power cord is damaged, worn, or cut in any way have it replaced by a qualified
electrician right away.
Troubleshooting
Trouble
Motor will not run
Probable Cause
Remedy
Defective ON/OFF switch or Replace defective parts.
damaged power cord.
Burned out motor
Have a qualified technician replace the motor.
Lathe slows down while V-belt loose.
Adjust tension.
turning.
Tailstock rocks back
Adjusting screw is too loose. Adjust screw.
and forth excessively.
Burning at tailstock end. Live center binding or dead Check bearing on live center.
center not lubricated.
Add lubrication if using dead
center.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS
MANUAL AS A REFERENCE TOOL ONLY: NETHER THE MANUFACTURER NOR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE
IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO
REPLACE ANY PARTS OF THE PRODUCT: IN FACT THE MANUFACTURER A ND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN
BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES
ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR
REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
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Page 15
NOTE: Some parts are listed and shown for illustration purposes only
and are not available individually as replacement parts.
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NOTE: Some parts are listed and shown for illustration purposes only
and are not available individually as replacement parts.
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Page 40
WARRANTY INFORMATION
Limited 90 day/1 year warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser for a period of ninety days from date of purchase that the motor/engine, the
belts (if so equipped), and the blades (if so equipped) are free of defects in materials and workmanship. Harbor
Freight Tools also warrants to the original purchaser, for a period of one year from date of purchase, that all other
parts and components of the product are free from defects in materials and workmanship. This warranty does not
apply to damage due directly or indirectly to misuse, abuse, negligence or accidents; repairs or alterations outside
our facilities; or to lack of maintenance. We 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 product. Some states do
not allow the exclusion or limitation of incidental or consequential damages, so the above limitation of exclusion
may not apply to you. THiS WarranTy iS expreSSly in lieu oF all oTHer WarranTieS, expreSS
or implied, inCluding THe WarranTieS oF merCHanTabiliTy and FiTneSS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges prepaid.
proof of purchase date and an explanation of the complaint must accompany the merchandise. if our inspection
verifies the defect, we will either repair or replace the product at our election or we may elect to refund the purchase
price if we cannot readily and quickly provide you with a replacement. We will return repaired products at our
expense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of
our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
SKU 43681
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Page 41