MachineryHouse AL-346V Instruction Manual

INSTRUCTION MANUAL
AL-346V
Centre Lathe (240V)
330 x 1000mm Turning Capacity
L555D
Page 1
01/09/2017
METAL LATHE
INSTRUCTION MANUAL
2015/11/V.1
Page 2
Instructions Manual for AL-346V (L555D)
01/09/2017
- 1 -
TABLE OF CONTENTS
TABLE OF CONTENTS
1 cutting fluid system 26
INTRODUCTION
2 Steady rest & follow rest 26
SECTION 1: SAFETY
4 Tool post 27
Safety instructions for machinery 4 Spindle speed 28
Additional safety for metal lathes 5 Manual feed 28
Additional chuck safety 6 Power feed 29
SECTION 2: POWER SUPPLY
7 Feed settings 29
Availability 7 Thread settings 30
Full-load current rating 7 SECTION 5MAINTENANCE 32
Grounding instructions 7 Schedule 32
Extension cords 7 Cleaning 32
SECTION 3: SETUP
8 Ball oiler and change gears lubrication 32
Preparation 8 Oil reservoirs 33
Unpacking 8 V-belt tension 35
Cleanup 8 Cutting fluid system 35
Site considerations 9
SCETION 6: SERVICE
36
Lifting & moving 10 Troubleshooting 36
Mounting 10 Gib adjustments 38
Adding cutting fluid 11 Backlash adjustment 39
Check gearbox oil 11 Half nut adjustment 40
Power connection 11 Feed clutch adjustment 40
Installing V-Belts 12 Tailstock lock 41
Test ru n 12 Gap insert removal 41
SECTION 4OPERATION 13 Machine storage 42
Operation overview 13 SECTION 7PARTS LIST 43-80
Controls 14
Chuck & faceplate removal 17
Three-Jaw chuck 19
Four-Jaw chuck 20
Faceplate 22
Centers 23
Tailstock 24
Page 3
Instructions Manual for AL-346V (L555D)
01/09/2017
- 2 -
INTRODUCTION
Manual accuracy
We are proud to offer this manual with your new machine! We've made every effort to be exact with the instructions,
specifications, drawings, and photographs of the machine we used when writing this manual. However, sometimes
we still make an occasional mistake.
Also, owing to our policy of continuous improvement, your machine may not exactly match the manual. If you find
this to be the case, and the difference between the manual and machine leaves you in doubt, please contact us for
help.
Machine description
1. The purpose of a metal lathe is to face, turn, knurl, thread, bore, or cut tapers in a metal work piece with perfect
accuracy. 2. During typical operations, the lathe spindle rotates the work piece at various speeds against a fixed
cutting tool that is positioned at a particular angle for the desired type of cut. 3. The cutting tool is mounted on a tool
post, which is positioned by three different slides that each move in different directions. 4. Opposite of the headstock
and spindle is a support device called a tailstock. The tailstock can be slid along the lathe bed and locked in place to
firmly support the end of a work piece.
Identification
Brake Pedal
Feed
Selection
Lever
Spindle
ON/OFF
Lever
Thread
Dial
Fully Enclosed Fluid
Pump And Tank
Carriage
Handwheel
Compound Rest
Handwheel
Cutting Fluid
Nozzle
Lamp 3-Jaw
Chuck
Feed Speed
Dials
Haf-Nut
Lever
Control
Panel
Feed
Direction
Lever
Spindle
Speed
Lever
DRO
Display
Control
Panel
Cross
Slide
Handwheel
Tailstock
Page 4
Instructions Manual for AL-346V (L555D)
01/09/2017
- 3 -
Technical parameter
MAX. Swing over bed---------------------------------------------------------------------------------------------330mm (13
")
MAX. Swing over cross slide---------------------------------------------------------------------------------------198mm (7.8
")
MAX. Swing over gap--------------------------------------------------------------------------------------------17.71
" (450mm)
MAX. Distance between centers-------------------------------------------------------------------------------1000mm (39.4
")
Bed width------------------------------------------------------------------------------------------------------------181mm (7.08
")
Spindle bore----------------------------------------------------------------------------------------------------------40mm (1.574
")
Cam lock system------------------------------------------------------------------------------------------------------------------D4
Spindle taper---------------------------------------------------------------------------------------------------------------MT No.5
Spindle speed--------------------------------------------------------------------------------------------------70-2000rpm/2spets
Top Slide travel-----------------------------------------------------------------------------------------------------75mm (2.95
" )
Cross slide travel---------------------------------------------------------------------------------------------------130mm (5.1
" )
Carriage travel-----------------------------------------------------------------------------------------------------760mm (29.9
" )
Cross-feed------------------------------------------------------------------------------------0.013-0.31mm (0.0005
"-0.012"
Longitudinal feed------------------------------------------------------------------------------0.053-1.29mm (0.002
"-0.051" )
Range of inch threads------------------------------------------------------------------------------------------4-60 TPI/36 steps
Range of metric threads----------------------------------------------------------------------------------------0.4-7mm/32 steps
Tailstock taper--------------------------------------------------------------------------------------------------------------MT No.3
Tailstock barrel travel-------------------------------------------------------------------------------------------------100mm (4
" )
Cutting tool (Max. section) ------------------------------------------------------------------------- 14X14mm (0.55
"x0.55" )
Weight (Net) ----------------------------------------------------------------------------------------------------600kg (1338 Lbs)
Weight (Shipping) ---------------------------------------------------------------------------------------------635kg (1416 Lbs)
Crate size (LXBXH) -------------------------------------------------------1870x740x1565mm (73.62
"X29.13"X61.62" )
Motor output----------------------------------------------------------------------------------------------------------1.5kw (2HP)
Page 5
Instructions Manual for AL-346V (L555D)
01/09/2017
- 4 -
SECTION 1: SAFETY
For your own safety, read instruction manual before operating this machine
DANGER! Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING! Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION! Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
NOTICE! This symbol is used to alert the user to useful information about proper operation of the equipment, and/or
a situation that may cause damage to the machinery.
Safety instructions for machinery
WARNING!
1. Owner’s manual. Read and understand this owner’s manual before using machine.
2. trained operators only. Untrained operators have a higher risk of being hurt or killed. Only allow
trained/supervised people to use this machine. When machine is not being used, disconnect power, remove switch
keys, or lock-out machine to prevent unauthorized use—especially around children. Make workshop kid proof!
3. Dangerous environments. Do not use machinery in areas that are wet, cluttered, or have poor lighting. Operating
machinery in these areas greatly increases the risk of accidents and injury.
4. Mental alertness required. Full mental alertness is required for safe operation of machinery. Never operate under
the influence of drugs or alcohol, when tired, or when distracted.
5. Electrical equipment injury risks. You can be shocked, burned, or killed by touching live electrical components
or improperly grounded machinery. to reduce this risk, only allow qualified service personnel to do electrical
installation or repair work, and always disconnect power before accessing or exposing electrical equipment.
6. Disconnect power first. Always disconnect machine from power supply before making adjustments, changing
tooling, or servicing machine. This prevents an injury risk from unintended startup or contact with live electrical
components.
7. Eye protection. Always wear approved safety glasses or a face shield when operating or observing machinery to
reduce the risk of eye injury or blindness from flying particles. Everyday eyeglasses are not approved safety glasses.
8. Wearing proper apparel. Do not wear loose clothing or jewelry that can become entangled in moving parts.
Always tie back or cover long hair. Wear non-slip footwear to avoid accidental slips, which could cause loss of work
piece control.
9. Hazardous dust. Dust created while using machinery may cause cancer, long-term respiratory damage. Be aware
of dust birth defects, or hazards associated with each work piece material, and always wear an approved respirator to
reduce your risk.
10. Hearing protection. Always wear hearing protection when operating or observing loud machinery. Extended
exposure to this noise without hearing protection can cause permanent hearing loss.
11. Remove adjusting tools. Tools left on machinery can become dangerous projectiles upon startup. Never leave
chuck keys, wrenches, or any other tools on machine. Always verify removal before starting!
12. Use correct tool for the jib. Only use this tool for its intended purpose – do not force it or an attachment to do a
jib for which for it was not designed. Never make unapproved modifications-modifying tool or using it differently
than intended may result in malfunction or mechanical failure that can lead to personal injury or death!
13. Awkward positions. Keep proper footing and balance at all times when operating machine. Do not overreach!
Avoid awkward hand positions that make work piece control difficult or increase the risk of accidental injury.
14. Children & bystanders. Keep children and bystanders at a safe distance from the work area. Stop using machine
if they become a distraction.
Page 6
Instructions Manual for AL-346V (L555D)
01/09/2017
- 5 -
15. Guards & covers. Guards and covers reduce accidental contact with moving parts or flying debris. Make sure
they are properly installed, undamaged, and working correctly.
16. Forcing machinery. Do not force machine. It will do the job safer and better at the rate for which it was
designed.
17. Never stand on machine. Serious injury may occur if machine is tipped or if the cutting tool is unintentionally
contacted.
18. Stable machine. Unexpected movement during operation greatly increases risk of injury or loss of control.
Before starting, verify machine is stable and mobile base (if used) is locked.
19. Use recommended accessories. Consult this owner’s manual or the manufacturer for recommended accessories.
Using improper accessories will increase the risk of serious injury.
20. Unattended operation. To reduce the risk of accidental injury, turn machine OFF and ensure all moving parts
completely stop before walking away. Never leave machine running while unattended.
21. Maintain with care. Follow all maintenance instructions and lubrication schedules to keep machine in good
working condition. A machine that is improperly maintained could malfunction,
leading to serious personal injury or death.
22. Check damaged parts. Regularly inspect machine for any condition that may affect safe operation. Immediately
repair or replace damaged or mis-adjusted parts before operating machine.
23. Maintain power cords. When disconnecting cord-connected machines from power, grab and pull the plug—not
the cord. Pulling the cord may damage the wires inside. Do not handle cord/plug with wet hands. Avoid cord damage
by keeping it away from heated surfaces, high traffic areas, harsh chemicals, and wet/damp locations.
24. Experiencing difficulties. If at any time you experience difficulties performing the intended operation, stop using
the machine! Please contact technical support.
Additional safety for metal lathes
WARNING!
1. Speed rates. Operating the lathe at the wrong can cause nearby parts to break or the work piece to come loose,
which will result in dangerous projectiles that could cause severe impact injuries. Large or non-concentric work
pieces must be turned at slow speeds. Always use the appropriate feed and speed rates.
2. Chuck Key safety. A chuck key left in the chuck can become a deadly projectile when the spindle is started.
Always remove the chuck key after using it. Develop a habit of not taking your hand off of a chuck key unless it is
away from the chuck.
3. Safe clearances. Work pieces that crash into other components on the lathe may throw dangerous projectiles in all
directions, leading to impact injury and damaged equipment. Before starting the spindle, make sure the work piece
has adequate clearance by hand-rotating it through its entire range of motion. Also, check the tool and tool post
clearance, chuck clearance, and saddle clearance.
4. Long stock safety. Long stock can whip violently if not properly supported, causing serious impact injury and
damage to the lathe. reduce this risk by supporting any stock that extends from the chuck/headstock more than three
times its own diameter. Always turn long stock at slow speeds.
5. Securing Work piece. An improperly secured work piece can fly off the lathe spindle with deadly force; witch can
result in a severe impact injury. Make sure the work piece is properly secured in the chuck or faceplate before starting
the lathe.
6. Chucks. Chucks are heavy and difficult to grasp, witch can lead to crushed fingers or hands if mishandled. Get
assistance when handing chuck to reduce this risk. protect your hands and the precision-ground ways buy using a
chuck cradle or piece of plywood over the ways of the lathe when servicing chucks. Use lifting devices when
necessary.
7. Clearing chips. Metal chips can easily cut bare skin—even through a piece of cloth. Avoid clearing chips by hand
Page 7
Instructions Manual for AL-346V (L555D)
01/09/2017
- 6 -
or with a rag. Use a brush or vacuum to clear metal chips.
8. Stopping spindle by hand. Stopping the spindle by putting your hand on the work piece or chuck creates an
extreme risk of entanglement, impact, crushing, friction, or cutting hazards. Never attempt to slow or stop the lathe
spindle with your hand. Allow the spindle to come to a stop on its own or use the brake.
9. Crashes. Aggressively driving the cutting tool or other lathe components into the chuck may cause an explosion of
metal fragments, which can result in severe impact injuries and major damage to the lathe. Not leaving lathe
unattended, and checking clearances before starting the lathe. Make sure no part of the tool, tool holder, compound
rest, cross slide, or carriage will contact the chuck during operation.
10. Coolant safety. Coolant is a very poisonous biohazard that can cause personal injury from skin contact alone.
Incorrectly positioned coolant nozzles can splash on the operator or the floor, resulting in an exposure or slipping
hazard. To decrease your risk, change coolant regularly and position the nozzle where it will not splash or end up on
the floor.
11. Tool selection. Cutting with an incorrect or dull tool increases the risk of accidental injury due to the extra force
required for the operation, which increases the risk of breaking or dislodging components that can cause small shards
of metal to become dangerous projectiles. Always select the right cutter for the job and make sure it is sharp. A
correct, sharp tool decreases strain and provides a better finish.
Additional chuck safety
WARNING!
1. Entanglement. Entanglement with a rotating chuck can lead to death, amputation, broken bones, or other serious
injury. Never attempt to slow or stop the lathe chuck by hand, and always roll up long sleeves, tie back long hair, and
remove any jewelry or loose apparel before operating.
2. Chuck speed rating. Excessive spindle speeds greatly increase the risk of the work piece or chuck being thrown
from the machine with deadly force. Never use spindle speeds faster than the chuck RPM rating or the safe limits of
your work piece.
3. Using correct equipment. Many work pieces can only be safely turned in a lathe if additional support equipment,
such as a tailstock or steady/follow rest, is used. If the operation is too hazardous to be completed with the lathe or
existing equipment, the operator must have enough experience to know when to use a different machine or find a
safer way.
4. Trained operators only. Using a chuck incorrect can result in work pieces coming loose at high speeds and
striking the operator or bystanders with deadly force. To reduce the risk of this hazard, read and understand this
document and seek additional training from an experienced chuck user before using a chuck.
5. Chuck capacity. Avoid exceeding the capacity of the chuck by clamping an oversized work piece. If the work
piece is too large to safely clamp with the chuck, use a face plate or a large chuck if possible. Otherwise, the work
piece could be thrown from the lathe during operation, resulting in serious impact injury or death.
6. Clamping force. Inadequate clamping force can lead to the work piece being thrown from the chuck and striking
the operator or bystanders. Maximum clamping force is achieved when the chuck is properly maintained and
lubricated, all jaws are fully engaged with the work piece, and the maximum chuck clamping diameter is not
exceeded.
7. Proper maintenance. All chucks must be properly maintained and lubricated to achieve maximum clamping force
and withstand the rigors of centrifugal force. To reduce the risk of a thrown work piece, follow all maintenance
intervals and instructions in this document.
8. Disconnect power. Serious entanglement or impact injuries could occur if the lathe is started while you are
adjusting, servicing, or installing the chuck. Always disconnect the lathe from power before performing these
procedures.
Page 8
Instructions Manual for AL-346V (L555D)
01/09/2017
- 7 -
SECTION 2: POWER SUPPLY
Availability
Before installing the machine, consider the availability and
proximity of the required power supply circuit. If an
existing circuit does not meet the requirements for this
machine, a new circuit must be installed. To minimize the
risk of electrocution, fire, or equipment damage,
installation work and electrical wiring must be done by an
electrician or qualified service personnel in accordance
with all applicable codes and standards.
Full-load current rating
The full-load current rating is the amperage a machine draws at 100% of the rated output power. On machines with
multiple motors, this is the amperage drawn by the largest motor or sum of all motors and electrical devices that
might operate at one time during normal operations.
The full-load current is not the maximum amount of amps that the machine will draw. If the machine is overloaded, it
will draw additional amps beyond the full-load rating.
If the machine is overloaded for a sufficient length of time, damage, overheating, or fire may result—especially if
connected to an undersized circuit. To reduce the risk of these hazards, avoid overloading the machine during
operation and make sure it is connected to a power supply circuit that meets the requirements of the machines.
A power supply circuit includes all electrical equipment between the breaker box or fuse panel in the building and the
machine. The power supply circuit used for this machine must be sized to safely handle the full-load current drawn
from the machine for an extended period of time.
CAUTION! For your own safety and protection of property, consult an electrician if you are unsure about wiring
practices or electrical codes in your area.
Grounding instructions
This machine MUST be grounded. In the event of certain malfunctions or breakdowns, grounding reduces the risk of
electric shock by providing a path of least resistance for electric current.
WARNING! Serious injury could occur if you connect the machine to power before completing the setup process.
DO NOT connect to power until instructed later in this manual.
Improper connection of the equipment-grounding wire can result in a risk of electric shock. The wire with green
insulation and yellow stripes is the equipment-grounding wire. If repair or replacement of the power cord or plug is
necessary, do not connect the equipment-grounding wire to a live (current carrying) terminal.
Check with a qualified electrician or service personnel if you do not understand these grounding requirements, or if
you are in doubt about whether the tool is properly grounded. If you ever notice that a cord or plug is damaged or
worn, disconnect it from power, and immediately replace it with a new one.
Extension cords
We do not recommend using an extension cord with this machine. If you must use an extension cord, only use it if
absolutely necessary and only on a temporary basis.
Extension cords cause voltage drop, which may damage electrical components and shorten motor life. Voltage drop
increases as the extension cord size gets longer and the gauge size gets smaller (higher gauge numbers indicate
smaller sizes). Any extension cord used with this machine must contain a ground wire, match the required plug and
receptacle, and wire as short as possible.
Page 9
Instructions Manual for AL-346V (L555D)
01/09/2017
- 8 -
SECTION 3SETUP
Preparation
The list below outlines the basic process of preparing your machine for operation. Specific steps are covered later in
this section. The typical preparation process is as follows:
1. Unpack the lathe and inventory the contents of the box/crate.
2. Clean the lathe and its components.
3. Ldentify an acceptable location for the lathe and move it to that location.
4. Level the lathe and bolt it to the floor.
5. Assemble the loose components and make any necessary adjustments or inspections to ensure the lathe is ready for
operation.
6. Check lathe for proper lubrication.
7. Connect the lathe to the power source.
8. Test run lathe to ensure it functions properly.
9. Perform the spindle break-in procedure to prepare the lathe for operation.
Unpacking
Your machine was carefully packaged for safe transportation. Remove the packing materials from around your
machine and inspect it. If you discover the machine is damage, please contact us.
Cleanup
The unpainted surfaces of your machine are coated with a heavy-duty rust preventative that prevents corrosion during
shipment and storage. This rust preventative works extremely well, but it will take a little time to clean.
Be patient and do a thorough job cleaning your machine. The time you spend doing this now will give you a better
appreciation for the proper care of your machine's unpainted surfaces.
There are many ways to remove this rust preventative,
but the following steps work well in a wide variety of
situations. Always follow the manufacturer’s instructions
with any cleaning product you use and make sure you
work in a well-ventilated area to minimize exposure to
toxic fumes.
Before cleaning, gather the following:
• Disposable Rags
• Cleaner/degreaser
• Safety glasses & disposable gloves
• Plastic paint scraper (optional)
Basic steps for removing rust preventative:
1. Put on safety glasses.
2. Coat the rust preventative with a liberal amount of
Page 10
Instructions Manual for AL-346V (L555D)
01/09/2017
- 9 -
cleaner/degreaser, then let it soak for 5–10 minutes.
3. Wipe off the surfaces. If your cleaner/degreaser is
effective, the rust preventative will wipe off easily. If you
have a plastic paint scraper, scrape off as much as you
can first, then wipe off the rest with the rag.
4. Repeat Steps 2–3 as necessary until clean, then coat all
unpainted surfaces with a quality metal protectant to
prevent rust.
Additional cleaning tips
• For thorough cleaning, remove the steady rest, tool post, compound slide, and changegears.
• use a stiff brush when cleaning the threads on the leadscrew.
• Move the slides and tailstock back and forth to thoroughly clean/lubricate underneath them.
• After cleaning, wipe down the ways with a high-quality way oil.
Site considerations
Weight Load
Refer to the Machine Data Sheet for the weight of your machine. Make sure that the surface upon which the machine
is placed will bear the weight of the machine, additional equipment that may be installed on the machine, and the
heaviest work piece that will be used. Additionally, consider the weight of the operator and any dynamic loading that
may occur when operating the machine.
Space Allocation
Consider the largest size of work piece that will be processed through this machine and provide enough space around
the machine for adequate operator material handling or the
installation of auxiliary equipment. With permanent
installations, leave enough space around the machine to
open or remove doors/covers as required by the
maintenance and service described in this manual.
See below for required space allocation.
Physical Environment
The physical environment where the machine is operated is important for safe operation and longevity of machine
components. For best results, operate this machine in a dry environment that is free from excessive moisture,
hazardous chemicals, airborne abrasives, or extreme conditions. Extreme conditions for this type of machinery are
Page 11
Instructions Manual for AL-346V (L555D)
01/09/2017
- 10 -
generally those where the ambient temperature range exceeds 41°–104°F0°–40°C); The relative humidity range
exceeds 20–95% (non-condensing); or the environment is subject to vibration, shocks, or bumps.
Electrical Installation
Place this machine near an existing power source. Make sure all power cords are protected from traffic, material
handling, moisture, chemicals, or other hazards. Make sure to leave access to a means of disconnecting the power
source or engaging a lockout/tagout device, if required.
Lighting
Lighting around the machine must be adequate enough that operations can be performed safely. Shadows, glare, or
strobe effects that may distract or impede the operator must be eliminated.
Lifting & moving
WARNING! You must use power lifting equipment and
assistance to lift and move this machine. Inspect all lifting
equipment to make sure it is in working order and rated for the
load before attempting to lift. Ignoring this warning may lead to
serious personal injury or death.
This lathe has a hole built into each end of the stand (see figure)
that is designed to accept a sturdy 25mm (1”) diameter lifting
bar. each bar must extend far enough from the stand so that
chains or lifting straps can be looped or connected to all four
corners and the lathe can be lifted.
Mounting
Although not required, we recommend that you mount your new machine to the floor. Because this is an optional step
and floor materials may vary, floor mounting hardware is not included. Generally, you can either bolt your machine to
the floor or mount it on machine mounts. Both options are described below. Whichever option you choose, it is
necessary to level your machine with a precision level.
Bolting to concrete floors
Lag shield anchors with lag screw and anchor studs (see figure) are two popular methods for anchoring an object to a
concrete floor. We suggest you research the many options and methods for mounting your machine and choose the
best that fits your specific application.
Lifting Holes
Page 12
Instructions Manual for AL-346V (L555D)
01/09/2017
- 11 -
Using machine mounts
Using machine mounts, shown in Figure, gives the advantage of fast leveling and vibration reduction. The large size
of the foot pads distributes the weight of the machine to reduce strain on the floor.
Using foundation bolts
Place the lathe on a solid foundation. A concrete floor is the best base for the machine. (If necessary, use
an under frame operational). Make sure there is sufficient area around the lathe for easy work and
maintenance. Use a precision level on the bedways to make further adjustment for level condition, tighten
the foundation bolts evenly and finally recheck for level condition.
NOTICE! For accurate turning results
and to prevent warping the cast iron bed
and ways, the lathe bedways must be
leveled from side-to side and from
front-to back on both ends. Re-check
the bedways 24 hours after installation,
two weeks after that, and then annually
to make sure they remain level.
C
Check gearbox oil
It is critical that there is oil in the headstock, quick change gearbox, and the apron gearbox before proceeding with the
test run. Refer to the lubrication instructions on page 32 for more details on which type and how much oil to use in
each gearbox.
Adding cutting fluid
For detailed instructions on where the cutting fluid tank is located and how to add fluid, refer to cutting fluid system
on page 35.
Power connection
Once all preparation steps previously described in this manual have been completed, the machine can be connected to
the power source. In order to be connected to the power source, a circuit must be installed/prepared that meets the
requirements of the lathe, and a power connection method must be established for that circuit.
Using an incorrectly sized cord causes machine electrical
components and the cord to become very hot, which can lead
to component failure or result in fire. For best results, use the
shortest length of cord possible, and never use a smaller cord
gauge than the specified minimum.
Page 13
Instructions Manual for AL-346V (L555D)
01/09/2017
- 12 -
Installing V-Belts
1. Open end gear cover to expose pulleys.
2. Clean surfaces of pulleys, making sure to remove and
oily residue from pulley sheaves
3. Install and tension V-belts (refer to
Tensioning/Replacing V-Belts on Page 35 in Owner’s
Manual for detailed instructions)
4. Wipe face of pulleys with light layer of way oil to
prevent rust. Take care to avoid leaving any excess oil
that could get flung off or contact belts.
Test run
Once assembly is complete, test run the machine to make sure it runs properly and is ready for regular operation. The
test run consists of verifying the following: the motor powers up and runs correctly and the stop button safety feature
works correctly.
If, during the test run, you cannot easily locate the source of an unusual noise or vibration, stop using the machine
immediately, then review troubleshooting on page 36. If you cannot find a remedy, contact our tech support for
assistance.
To begin the test run:
1. Make sure you understand the safety instructions at the beginning of the manual and that all previous setup
sections have been completed.
2. Make sure the lathe is lubricated and the oil levels are at the full mark. Refer to maintenance on page 32 for details.
3. Make sure the chuck is correctly secured to the spindle. Refer to chuck and faceplate mounting on page for detailed
installation instructions.
4. Make sure all tools and objects used during setup are cleared away from the machine.
NOTICE! Never shift lathe gears when lathe is operating, and make sure both the half nut lever and the feed
selection lever are disengaged before you start the lathe! Otherwise the carriage may feed into the chuck or tailstock
and cause severe damage.
5. Disengage the half-nut lever and the feed selection
lever (see Figure 1), and make sure the saddle lock is
loosened to allow the lead screw or feed rod to move the
apron if required.
6. Make sure the cutting fluid pump switch is OFF; point
the cutting fluid nozzle into the lathe chip pan.
WARNING! Before starting the lathe, make sure you
have performed any preceding assembly and adjustment
instructions, and you have read through the rest of the
manual and are familiar with the various functions and
safety features on this machine. Failure to follow this
warning could result in serious personal injury or even
death!
7. Rotate the stop button (see Figure 2) clockwise until it pops out.. Figure 1
Page 14
Instructions Manual for AL-346V (L555D)
01/09/2017
- 13 -
8. Move the feed direction lever (see Figure 2) to the disengaged middle position.
9. Turn the spindle speed control knob (Figure 2) all the way counterclockwise (lowest speed) to avoid possibility of
a high-speed start.
10. Move the spindle speed range lever (Figure 2) to the “L” position so the headstock is set in the low range
(70-440RPM). You may need to slightly rotate the chuck by hand to engage the lever.
11. Connect the lathe to power source, and then turn the main power switch to the ON position (Figure 3)
12. Move the spindle ON/OFF lever to start the lathe. The spindle will rotate at 70 rpm. When operating correctly, the
machine runs smoothly with little or no vibration or rubbing noises.
— investigate and correct strange or unusual noises or vibrations before operating the machine further. Always
disconnect the machine from power when investigating or correcting potential problems.
13. Move the spindle ON/OFF lever to the center position,
and press the stop button.
14. Without resetting the stop button, move the spindle
ON/OFF lever down. The machine should not start.
—if the machine does not start, the stop button safety
feature is working correctly. Continue to the next step.
—if the machine starts (with the stop button pushed in),
immediately disconnect power to the machine. The stop
button safety feature is not working correctly. This safety
feature must work properly before proceeding with
regular operations. Call tech support for help.
15. Rotate the stop button clockwise until it pops out.
16. Make sure the lamp works.
Figure 2
17. Make sure that the cutting fluid nozzle is pointing toward the chip pan, then turn the cutting fluid pump switch
and open the nozzle valve. After verifying that cutting fluid flows from the nozzle, turn the cutting fluid switch OFF.
18. Start the spindle, and then step on the brake pedal. The power to the motor should be cut and the spindle should
come to an immediate stop.
SECTION 4OPERATION
Operation overview
This overview is the basic process that occurs when operating this machine. Familiarize yourself with these steps to
better understand the remaining parts of the operation section.
To complete a typical operation, the operator does the following:
1. Puts on safety glasses, rolls up sleeves, removes jewelry, and secures any clothing, jewelry, or hair that could get
entangled in moving parts.
Page 15
Instructions Manual for AL-346V (L555D)
01/09/2017
- 14 -
2. Examines the work piece to make sure it is suitable for turning, and then mounts the work piece required for the
operation.
3. Mounts the tooling, aligns it with the work piece, and
then adjusts it for a safe startup clearance.
4. Clears all tools from the lathe.
5. Sets the correct spindle speed for the operation.
6. Checks for safe clearances by rotating the work piece
by hand one full revolution.
7. Moves slides to where they will be used during
operation. If using power feed, selects the proper feed
rate for the operation.
8. Turns the main power switch ON, resets the stop
button so it pops out, then moves the spindle ON/OFF
lever to start spindle rotation. The spindle will rotate
forward (the top of the chuck rotates toward the
operator).
9. Uses the carriage handwheels or power feed options
to move the tooling into the work piece for operations.
10. When finished cutting, moves the ON/OFF lever to
the center position to turn the lathe OFF then removes the
work piece.
Controls
Main Power Switch
The main power switch is shown in Figure 3.
It turns master power ON/OFF to the lathe.
Headstock controls
Use the descriptions in this section and the controls
shown in Figure 2 to quickly understand the functions
of the headstock and quick change gearbox controls,
and to find their locations on the lathe.
01. Spindle Speed Range Levers: Shifts the headstock
into low or high range for spindle speeds between
70-440 RPM or 350-2000 RPM.
Figure 3
02. Feed Direction Lever: Controls the forward and reverse direction of the carriage and cross feed. When this lever
moved left or right, the direction of the quick change gearbox, feed rod, and lead screw reverse direction, but spindle
direction is unaffected.
03.Power Light: When the lathe is connected to power, it is not necessarily ready for use. Only when the stop button
is twisted clockwise and popped-out, and the on button has been pushed will the power light illuminate and indicate
that all electrical controls are "live" and ready for use. Just because the power light is OFF, do not assume that the
Page 16
Instructions Manual for AL-346V (L555D)
01/09/2017
- 15 -
lathe is safe for electrical work, general adjustments, or work piece changes. You must always disconnect the lathe
from power before attempting any of these tasks.
04. Cutting fluid ON/OFF Switch: Toggles the cutting fluid pump ON or OFF. Never turn the cutting fluid pump on
and let it run while the reservoir is empty, or pump damage may occur.
05. Feed Speed Dials: Engage either the feed rod or leadscrew, and set the apron speed for threading, turning, or
facing operations.
06. Emergency Stop Button: Cuts power to the spindle motor and the control panel. No braking occurs and the
spindle, chuck, and work piece wind-down naturally. After being pressed, the stop button stays pushed in until it is
reset by twisting the knob clockwise until it pops back out.
07. Jog Button: Bumps the motor ON and OFF so partial spindle rotation occurs in reverse. Useful when the lathe is
stopped in low range and the lathe gear reduction makes it difficult for the machinist to rotate the chuck by hand in
order to reposition a chuck or work piece. Note: In order to use the jog button, the Spindle ON/OFF lever must be in
the central or OFF position.
08. Speed Display: Displays the current spindle speed in RPM.
09. Speed Control Knob: Changes the spindle speed within the set speed range.
10. Reset Button: Motor will stop when the load exceeds the motor rated power and the red light of the Reset Button
will be lighted. If you want to restart the lathe, first move the Spindle ON/OFF Lever to the STOP position, then push
the Reset Button and the red lights will be gone out. Now you can restart the lathe.
Apron controls
Use the descriptions in this section and the controls
shown in Figure 4 to quickly understand the functions of
the apron and its related controls.
Spindle ON/OFF Lever
Starts and stops the spindle in forward and reverse.
• Moving the lever upward from the central OFF position
spins the chuck forward (the top of the chuck moves
toward the machinist).
• Moving the lever downward from the central position
spins the chuck in reverse (the top of the chuck moves
away from the machinist).
Figure 4
Feed Selection LeverAllows the machinist to engage or
disengage the apron for longitudinal or cross feeding tasks. Carriage Lock Lever:Clamps the right front of the saddle
to the lathe way for increased rigidity when facing a
workpiece. Half-Nut LeverClamps the halfnut to the leadscrew for
threading operations. Thread DialAvoids cross-cutting threads by indicating to
the machinist where to re-clamp the half nut in order to resume threading after a carriage return. Figure 5
Carriage Handwheel
For moves the carriage longitudinally left or right along the ways. Figure 5
Figure 5
Page 17
Instructions Manual for AL-346V (L555D)
01/09/2017
- 16 -
Cross Slide Handwheel Moves the cross slide in or out perpendicular to carriage travel and is equipped with a standard Dial. (Figure 5
Compound Slide HandwheelFigure 5
Moves the compound and cutting tool relative to the workpiece at various angles with fine-depth control.
Compound Slide ScaleFigure 5
The 90° rosette on the top of the compound indicates compound angles. Zero splits the scale into two ranges, 45° to
the right and 45° to the left in 1° degree increments.
Tailstock
Use the descriptions in this section and the controls shown in Figure 6 to quickly understand the functions of the
tailstock controls.
Quill Lock Lever
Secures the quill in a locked or pre-loaded position.
Tailstock Lock Lever
Clamps the tailstock in place for general position
locking along the lathe bed.
Set screw
Allows the tailstock to be locked in place using a
wrench to control amount of drawdown alignment with
the spindle centerline.
Tailstock Handwheel
Advances or retracts the quill in the tailstock at a 1:1
ratio with the micrometer scale on the handwheel hub. Figure 6
Micrometer Scale
Brake
This lathe is equipped with a foot brake (see Figure7)
to quickly stop the spindle. Pushing the foot brake
while the spindle is ON cuts power to the motor and
stops the spindle. Once stopped, the spindle ON/OFF
lever MUST be returned to the neutral position before
the spindle can be restarted.
WARNING!
Using the foot brake to stop the lathe reduces risk of an
entanglement injury from allowing the lathe to coast to
a stop. Use the foot brake to stop the lathe whenever
possible.
Figure 7
Spindle ON/OFF Lever
Foot Brake
Page 18
Instructions Manual for AL-346V (L555D)
01/09/2017
- 17 -
Chuck & faceplate removal/installation
This lathe is shipped with a 3-jaw chuck installed, but some time you need to use a 4-jaw chuck or faceplate. The
chucks and faceplate mount to the spindle with a camlock system, which uses a key to loosen and tighten camlocks
for removal or installation (see Figure 8).
Figure 8 Figure 9
Before the 4-jaw chuck and faceplate can be installed on the spindle, their respective cam studs must be installed and
adjusted. To maintain consistent removal and installation of the chucks and faceplate, each should have a timing mark
that can be lined up with a matching one on the spindle, so it will be installed in the same position every time (see
Figure 9). Before removing the 3-jaw chuck, verify that a timing mark exists. If a mark cannot be found, stamp your
own on both the chuck and spindle.
Chuck & faceplate removal
1. Disconnect lathe from power!
2. Lay a chuck cradle (see Figure 10) or a layer of plywood
over the bed ways to protect the precision ground surfaces
from damage and to prevent fingers from being pinched.
Figure 10
3. Loosen the cam-locks by turning the key counterclockwise
approximately one-third of a turn until the mark on the
cam-lock aligns with the single mark on the spindle nose in
Figure 11. If the cam-lock stud does not freely release from the
cam-lock, wiggle the cam-lock until the cam-lock stud releases.
Note: These cam-locks may be very tight. A breaker bar may be
used to add leverage.
4. Using a dead blow hammer or other soft mallet, lightly tap
around the outer circumference of the chuck body to break the
chuck free from the cam-locks and from the spindle nose taper.
Caution: the chuck may come off at this point, so it is important you are ready to support its weight.
Page 19
Instructions Manual for AL-346V (L555D)
01/09/2017
- 18 -
WARNING! Large chucks are very heavy. Always get
assistance when removing or installing large chucks to prevent
personal injury or damage to the chuck or lathe.
5. Use a rocking motion to carefully remove the chuck from
the spindle (see Figure 12).
—if the chuck does not immediately come off, rotate the spindle
approximately 60˚ and tap again. Make sure all the marks on the
cams and spindle are in proper alignment.
Figure 11
Chuck & faceplate installation
1. Disconnect lathe Form power!
2. Place a piece of plywood across the lathe ways just under the
chuck, and use a chuck cradle if desired.
3. Make sure the chuck taper and spindle taper mating surfaces
are perfectly clean.
4. Inspect and make sure that all camlock studs are undamaged,
are clean and lightly oiled, and that the camlock stud cap screws
are in place and snug.
Figure 12 NOTICENever install a chuck or faceplate without having the camlock cap screws in place or fully tightened. If
you ignore this notice, once installed the chuck may never be able to be removed since the camlock
studs will turn with the camlocks and never release.
5. Align the chuck-to-spindle timing marks , and slide the
chuck onto the spindle.
6. Turn a camlock with the chuck wrench until the cam mark
falls between the "v" marks as shown in Figure 13.
— If the cam lock mark stops outside of the “v” marks,
remove the chuck and adjust the cam stud height of the
offending studs one full turn up or down (see Figure 13).
Figure 13
7. Lock the other cams in a star pattern so the chuck is drawn up evenly on all sides without any chance of
misalignment.
Note: If any of the cam lock marks (see Figure 14) do not fall between the "V" marks when the cam lock is tight,
you must adjust the offending camlock stud as discussed in Camlock Stud Installation.
8. Remove the chuck wrench.
Camlock stud installation
1. Oil and thread each cam stud into the chuck until the alignment groove is flush with the chuck surface as shown in
Figure 14. 2. Install and tighten the locking cap screw for each stud, making sure that the camlock studs can
slightly rotate back and forth. 3. Place the chuck onto the spindle and tighten the cam locks in an alternating manner
to avoid cocking the chuck on the spindle. When tightened:
— If the cam lock mark stops outside of the "v" marks, remove the chuck and adjust the cam stud height of the
offending studs one full turn (see Figure 14).
— If the final position of each cam mark is between the two "v" marks as shown in Figure 14, no stud adjustment is
required.
Page 20
Instructions Manual for AL-346V (L555D)
01/09/2017
- 19 -
Figure 14
Three-Jaw chuck
This section outlines basic operation safety related to using the 3-jaw chuck included with your lathe. Use knowledge
of safety and common sense when applying the steps on how to use this chuck. If you have any questions, feel free to
contact our technical support department.
The 3-jaw chuck included with your lathe is a scrolling-type chuck, which means all three jaws move equally when
the chuck key is turned. This jaw configuration is used to hold concentric workpieces that are centered with equal
pressure from all three jaws.
There is also a reverse set of jaws included with your lathe that accommodate additional workpiece configurations
(see Figure 15), both sets of jaws can hold a workpiece on inside or outside surface of the jaw. No matter how you
configure the jaws, make sure the workpiece is firmly secured to the chuck.
Mounting workpiece
1. Disconnect the lathe from power.
2. Lay a piece of plywood on the bedway underneath the
spindle to protect the precision ground surfaces.
3. Insert the chuck key into a scroll keyway and rotate it
counterclockwise to open the jaws until the workpiece sits
flat against the chuck face, evenly on the jaw steps, or fits
into the chuck hole and through the spindle bore.
4. Close the jaws until they make light contact with the
workpiece.
5. Turn the chuck by hand to make sure the workpiece is
evenly held by all three jaws and is centered on the chuck. Figure 15
Page 21
Instructions Manual for AL-346V (L555D)
01/09/2017
- 20 -
If the workpiece is not centered, loosen the jaws and adjust the workpiece, then re-tighten the jaws and repeat step5.
if the workpiece is centered, fully tighten the jaws.
Removing jaws
1. Disconnect the lathe from power.
2. Place a piece of plywood on the bedway to protect it, then remove the chuck from the lathe.
3. Lay the chuck on a flat, stable surface, then insert the chuck key into a scroll keyway and rotate it
counterclockwise to back the jaws all the way out of the jaw guides.
4. Thoroughly clean the jaws with shop rags and mineral spirits, then apply a thin coat of an anti-rust protective
lubricant before storing them in a protected location free from moisture and abrasives.
Installing jaws
1. Place the chuck on a flat, stable surface.
2. Examine the side of the jaws-each is stamped with a number 1 through 3. Examine the jaw guides of the
chuck-each is stamped with a corresponding number (see Figure 16).
Note: the jaws and jaw guides are machined to match and each jaw must be installed in its corresponding jaw guide.
Figure 16 Figure 17
3. Insert the chuck key into a scroll keyway and rotate it until you see the beginning of the scroll gear’s lead thread
come into view through the #1 jaw guide, then back if off slightly until it disappears (see Figure 17).
4. Slide the #1 jaw into the #1 jaw guide and hold it firmly against the scroll gear threads, then rotate the chuck key
clockwise approximately one turn until the lead thread engages with the jaw.
Note: Tug on the jaw to make sure it is engaged with the scroll gear thread.
5. Repeat Steps 3-4 for jaws #2 and #3 in sequence.
6. Rotate the chuck key clockwise to bring the jaws together in the center of the chuck.
If installed correctly, the jaws will converge evenly at the center of the chuck.
If the jaws do not come together evenly, remove them, make sure the numbers of the jaws and the jaw guides
match, then properly re-install them.
Four-Jaw chuck
This section outlines basic operation safety related to using the 4-jaw chuck included with your lathe. use knowledge
of safety and common sense when applying the steps on how to use this chuck.
Select this chuck for low-speed lathe operations only. The 4-Jaw chuck uses independently adjustable jaws, meaning
each is adjusted by an individual worm gear. Non-cylindrical parts can be held and brought into the spindle centerline
for facing or boring. The other benefit is that the majority of a workpieces can be positioned out of the spindle
rotation axis if a bore or step needs to be cut into a workpiece on an outlying edge.
For the best grip possible on odd-shaped workpieces, one or more jaws can also be rotated 180° to grab more surface
Page 22
Instructions Manual for AL-346V (L555D)
01/09/2017
- 21 -
area for clamping.
If all four jaws cannot be used to hold the workpiece, you must use the faceplate for improved clamping options.
Otherwise, a severe out-of-balance condition will be created. If spun even at an average speed, this chuck will almost
always be out of balance, and the machinist and bystanders will be at risk of being hit with a thrown workpiece.
Being hit by an ejected workpiece can be fatal.
Reversing Jaw positions & clamping a Workpiece
Shown in Figure 18 is an example of the independent jaws holding a non-cylindrical workpiece for off-center boring.
One or more jaws can be reversed in any combination to get the best grip on the workpiece.
To use the 4-jaw chuck:
1. Disconnect lathe from power!
2. Install a center in the tailstock.
3. Open each jaw with the chuck wrench and place the
workpiece flat against the chuck face.
4. Support the workpiece and slide the tailstock forward so
the tip of the dead center presses against the workpiece.
Next, lock the tailstock in position.
5. Turn the tailstock quill so the dead center applies enough
pressure to the center point of your workpiece to hold it in
place (see Figure 19), then lock the tailstock quill.
Figure 18
6. Turn each jaw until it just makes contact with the
workpiece.
7. Tighten each jaw in small increments. After adjusting
the first jaw, continue tightening in opposing sequence (see
Figure 19). Check frequently to make sure the required
point on the workpiece has not wandered away from the
spindle centerline due to applying too much pressure to a
single jaw.
Figure 19
8. After the workpiece is held in place, back the tailstock
away and rotate the chuck by hand. the center point will
move if the workpiece is out of center (see Figure 20).
9. Make fine adjustments by slightly loosening one jaw and
tightening the opposing jaw until the workpiece is held
securely and precisely aligned with the spindle centerline.
Figure 20
Page 23
Instructions Manual for AL-346V (L555D)
01/09/2017
- 22 -
Faceplate
This section outlines basic operation safety related to using the faceplate included with your lathe. Use knowledge of
safety and common sense when applying the steps on how to use this faceplate.
The faceplate is cast-iron and has multiple slots for T-bolts that hold clamping hardware. If you suspect that any of
the chuck or jaw combinations may not hold a workpiece safely, remove the chuck and install the faceplate as
outlined for special clamping options.
However, just as with the 4-Jaw chuck, not all workpieces can be safely held. Holding a workpiece off center or
holding an irregular shaped workpiece will cause the entire assembly to rotate out of balance. If spun at any speed
higher than low, the workpiece can eject hitting the lathe operator or bystanders causing a severe or fatal injury.
Figure 21 shows an example of a workpiece being improperly held with the 4-jaw chuck. One jaw of the chuck
interfered with the workpiece edge, and removing the jaw creates an extreme workpiece ejection hazard. The
workpiece holding solution shown in figure 21 is to use the faceplate with a minimum of three clamps that are spaced
as equally apart as possible for full support.
Figure 21 Figure 22
To use the faceplate:
1. Disconnect lathe from power!
2. Insert a dead center into the tailstock, slide the tailstock up to the faceplate, and lock the tailstock into position.
3. Place the workpiece against the faceplate and turn the tailstock quill so the point of the dead center touches and
applies enough pressure to hold the workpiece in place.
4. Lock the quill when sufficient pressure is applied to hold the workpiece. Additional support may be needed,
depending on the workpiece.
5. Clamp the workpiece at a minimum of three locations that are as close to being evenly spaced apart as possible as
shown in Figure 23.
WARNING! Use a minimum of three independent clamping
devices when using faceplate. Failure to provide adequate
clamping may cause workpiece to eject during operation.
6. Double check for safety and rotation clearance.
7. Slide the tailstock away from the workpiece and install the
required tailstock tooling for drilling or boring, or position
the tool bit for facing.
Figure 23
Page 24
Instructions Manual for AL-346V (L555D)
01/09/2017
- 23 -
Centers
Some time you need to use dead centers, live center, and adapter sleeve (see Figure 24) to adapt the centers into
spindle bore. When installing centers verify that all mating surfaces are clean and free of nicks and burrs.
Tip: Hand-held tapered bore wipers make this task very time efficient, and offer consistently clean bores.
Solid dead center
Dead centers are typically used in low speed turning
operations to increase rigidity for close tolerances. The
solid dead center is installed at the spindle end of the
lathe because the workpiece, center, and spindle all turn
together by the use of a lathe dog. One end of the lathe
dog is clamped to the workpiece, and the other end the
tail, is inserted into a faceplate slot shown in Figure 25.
Figure 24
Tip: If the tail is too large for a slot, install the 3-jaw chuck, open the jaws so the workpiece can be supported by the
center and the tail of the dog can rest against a jaw.
Carbide-tipped dead center
When the workpiece is supported at the tailstock end of the
lathe, the workpiece will spin on the tip of the fixed center.
To eliminate the tip of the center from wearing out at this
point of contact, the carbide-tipped center is used.
Nevertheless, during turning operations this tip must still be
lubricated vigilantly, or the workpiece will wear, resulting
in increased end play and poor turning results. Typically,
when using centers, the tailstock quill should be locked and
protrude, but not too long.
Figure 25
Live center
If the workpiece must be spun at higher speeds, the live center is inserted into the tailstock. Unlike a dead center, the
tip of the live center is supported with precision bearings that allow it to support and spin with the workpiece. As a
result, virtually no wear occurs, and the workpiece can be turned with less concern about developing end play from
tip wear. However, when using live centers, accuracy can suffer as a result of having bearings support the end of the
workpiece.
Installing center in tailstock
1. Center drills the end of the workpiece to be turned or threaded.
2. Feed the quill out about 25mm (1"), wipe clean and insert the center into the quill bore (see Figure 26). To h elp
prevent wear, place a dab of grease on the point of the
center.
3. Position the tailstock so the center presses against the
workpiece, then lock the tailstock in place.
4. Preload the quill into the workpiece. The force against
the workpiece will fully seat the tapered center.
5. Lock the quill into place. However, keep in mind that the
quill may need to be adjusted during operation to remove
any play that develops between the center and the
workpiece. Figure 26
Page 25
Instructions Manual for AL-346V (L555D)
01/09/2017
- 24 -
Removing center from tailstock
To remove a center, hold the end of the center with a rag to prevent it from falling, and reverse the handwheel until
the center is pressed free.
Installing center in spindle
1. Install the dead center into the spindle sleeve.
2. Install the sleeve into the spindle bore.
3. Determine whether to use the chuck or faceplate, and install the required unit.
4. Clamp the required lathe dog onto the workpiece and mount the workpiece between the lathe centers.
Removing center from spindle
To remove a center and sleeve, hold the end of the center with a rag to prevent it from falling, insert a wooden rod
into the outboard side of the spindle, and tap the center and sleeve free.
Tailstock
Offsetting tailstock
By offsetting the tailstock, the dead center can hold a workpiece at a particular away from the spindle centerline so
tapers and pipe threads can be cut. For a quick visual tool in keeping track of tailstock movement, an offset scale (see
figure 37) with arbitrary increments is located at the rear of the tailstock. However, to achieve exact taper angles, or
to adjust the tailstock back into the spindle centerline, angle gauges and a test indicator must be used.
To offset the tailstock:
1. Loosen the tailstock lock lever.
2. using a hex wrench loosen one of the front or rear
adjustment screws shown in Figure 27.
— To move the tailstock toward the rear of the lathe,
loosen the front adjustment screw and tighten the rear
screw.
—To move the tailstock toward the front of the lathe,
loosen the rear adjustment screw and tighten the front
screw.
3. Apply the tailstock lock lever, and check the amount of
the tailstock offset. Unlock and readjust as required for
fine tuning.
Figure 27
Aligning tailstock
The tailstock alignment was set at the factory with the headstock. However, we recommend that you take the time to
ensure that the tailstock is aligned to your own desired tolerances. To align the tailstock:
1. Center drill a 6'' long piece of bar stock on both ends.
Set it aside for use in Step 4.
2. Make a dead center by turning a shoulder to make a
shank. Flip the piece over in the chuck and turn a 60°
point (see Figure 28). As long as it remains in the
chuck, the point of your center will be accurate to the
spindle axis.
Note: Keep in mind that the point will have to be
refinished whenever it is removed and returned to the
chuck.
Figure 28
Page 26
Instructions Manual for AL-346V (L555D)
01/09/2017
- 25 -
3. Place the live center in your tailstock.
4. Attach a lathe dog at the spindle end to the bar stock
from step 1, and mount it between the centers as shown
in Figure 29.
5. Turn approximately 0.25mm (0.010'') off the diameter.
6. Mount a dial indicator so that the plunger is on the
tailstock quill (see Figure 30).
7. Measure the stock with a micrometer. if the stock is
wider at the tailstock end, the tailstock needs to be moved
toward the front of the lathe the amount of the taper (see
Figure 30).
— If the stock is thinner at the tailstock end, the tailstock
needs to be moved toward the rear of the lathe by at least
the amount of the taper (see Figure 31). Figure 29
Figure 30 Figure 31
NOTICEDo not forget to lock the tailstock to the ways after each adjustment.
8. Loosen the tailstock lock lever and adjust the tailstock offset by the amount of the taper.
9. Turn another 0.25mm (0.010'') off of the stock and check for any taper.
10. Repeat as necessary until the desired level of accuracy is achieved.
Drilling with tailstock
The tailstock quill has an Mt#3 taper with a lock slot at the bottom to accept tang-style tooling. If the tooling will
experience high torque loads during operation, it is critical to use tanged-style to prevent the drill bit or arbor from
spinning and galling the quill bore. Restoring a galled bore and taper can be time consuming or require quill
replacement.
However, tooling without tang-styled arbors can be used if they meet the following criteria.
• Very little torque loads will be applied to the tooling such as with centers.
• The tap or drill bit is not larger than 12.5mm (1⁄2" ) in diameter.
• The end of the arbor is solid, or has a screw threaded into the hole making the end of the arbor solid. Installing an
arbor with a solid end is important to avoid the arbor from becoming stuck in the quill. Some arbors equipped with
the hole are too short to be exposed in the drift slot for removal, and the tailstock pin has no surface to push against
when using the handwheel to remove the arbor. As a result, the arbor becomes stuck requiring the quill to be removed
and the arbor driven out with a punch.
Page 27
Instructions Manual for AL-346V (L555D)
01/09/2017
- 26 -
Tip: When drilling or when tapping operations need to be done deep into a part, the quill can also be stabilized by
slightly applying the lever to add drag and preload to the quill.
To install a tanged drill or chuck:
1. Lock the tailstock in position, then unlock the quill.
2. Use the quill feed handwheel to extend the quill about
25mm (1”) out of the tailstock.
3. Insert an Mt#3 chuck arbor or drill bit into the quill just
until the tang drops into the slot and the tapers just touch.
Tip: For maximum locking of large diameter drill bits, push
and seat the drill bit into the quill with a clockwise rotation as
to load the tang against its slot.
4. Tap the end of the tooling or drill bit with a wooden block
or mallet to seat the tool.
5. Lock the quill.
To remove a tapered drill or chuck: Figure 32
Turn the handwheel counterclockwise until the arbor or drill bit is pushed out from the tailstock taper.
—if the tool is stuck in the bore and cannot be removed by turning the handwheel with moderate force, extend the
quill to expose the drift key slot, and use any standard drift key to remove the stuck tooling.
Cutting fluid system
The cutting fluid system delivers cutting fluid via a flexible
distribution hose and nozzle. The cutting fluid pump turns
ON and OFF with a switch located on the control panel. Fluid
flow is controlled by a manual flow control valve (see Figure
33).
NOTICE! Running the pump without adequate cutting fluid
in the reservoir may permanently damage it. This type of
damage is not covered by the warranty.
Always use high quality cutting fluid and follow the
manufacturer's instructions for diluting. Frequently check the
cutting fluid condition and change it promptly when it
becomes overly dirty or rancid.
Figure 33
To use the cutting fluid system:
1. Make sure the cutting fluid tank is properly serviced and filled.
2. Position the cutting fluid nozzle as desired for your operation.
3. Use the control panel switch to turn the cutting fluid pump ON.
4. Adjust the flow of cutting fluid by using the flow valve.
Steady rest & follow rest
Selecting and using rests
To minimize deflection, in workpieces like rods, dowels, tubes, and small diameter solid shafts, the steady rest or
follow rest is used.
Page 28
Instructions Manual for AL-346V (L555D)
01/09/2017
- 27 -
The steady rest is clamped to the ways and supports the workpiece with three fingers at a single point between the
chuck and the tailstock.
The follow rest is bolted to the carriage and travels with it during turning or threading operations. Two fingers support
the workpiece while the tool tip acts as the third support during cutting.
Both the steady rest and the follow rest use solid brass tips. The fingers have a guide slot where the tip of an
adjustable set screw rides. These screws are held in place with jam nuts. The set screws must be tightened inward far
enough so they bottom slightly, providing preload and keeping the finger in alignment with only slight rocking in its
bore.
When using either of these rests, keep in mind that most machining operations must be done at low spindle speeds to
prevent a workpiece ejection hazard.
To install the rests:
1. Disconnect lathe from power!
2. Select the required rest (see Figure 34) for the operation,
and wipe all mounting surfaces clean with a lightly oiled
rag.
—to install the steady rest, place it on the lathe bed where
workpiece support is needed. Engage the base clamp with
the way underside and tighten the mounting nut with a
wrench.
—to install the follow rest, fasten the base to the saddle
with two provided cap screws using a hex wrench.
3. Install the workpiece and support it at both ends.
4. Without causing deflection, adjust the fingers
until the solid brass tips just touch the workpiece. Figure 34
5. Lock the fingers in place with the set screws and jam nuts.
Tool post
The included tool post is a 250 series piston-type
quick-change model. The quick-change lock lever allows
for one or more tool holders to be quickly loaded and
unloaded in two available dovetailed slots. By having extra
tool holders and setting the tool height in advance,
swapping between tooling is efficient for
production-sensitive schedules. When loosened, the
mounting hex nut allows the entire tool post to rotate 360°
for angle adjustments.
Figure 35
To load a tool holder:
1. Install the required cutting tool in the tool holder.
2. Move the quick-change lever (see Figure 35) to recess the lock piston and provide an unobstructed slot for the tool
holder to slide down into.
3. Slide the tool holder into position, and tighten the quick-change lever.
4. Use the handwheels to bring the tool to the required position.
5. Double check that tool angle, height, and position are correct.
6. Make sure that all fasteners related to the tool, holder, and tool post are tight.
Page 29
Instructions Manual for AL-346V (L555D)
01/09/2017
- 28 -
Spindle speed
Using the correct spindle speed is important for safe and satisfactory results, as well as maximizing tool life.
To set the spindle speed for your operation, you will need to:
(1) Determine the best spindle speed for the cutting task, and (2) configure the lathe controls to produce the required
spindle speed.
To change the spindle speed:
1. Make sure the spindle is turned OFF and it has come to
complete stop.
2. Move the spindle speed range lever to the range that
covers your calculated spindle speed. When the lever to the L
position, the speed range is 70-440 RPM, when the lever to
the H position, the speed range is 350-2000 RPM.
Note: To shift the spindle speed range lever, you may need to
apply pressure to the lever and slightly rotate the spindle by
hand.
War ning!
Make sure the variable speed control knob is turned all
the way to the left (counterclockwise) before turning the
lathe ON, or it may start up at a dangerously high rate of
speed.
Figure 36
4. Turn the spindle ON and slowly turn the variable speed control knob to carefully adjust the spindle speed (show on
the spindle speed display) to your calculated spindle speed.
Manual feed
You can manually move the cutting tool around the lathe for
facing or turning operations using the handwheels shown in
Figure 37.
Carriage handwheel: For moves the carriage longitudinally
left or right along the ways.
Cross slide handwheel: For moves the cross slide in or out
perpendicular to carriage travel.
Compound slide handwheel: For moves the compound and
cutting tool relative to the workpiece at various angles.
Figure 37
Page 30
Instructions Manual for AL-346V (L555D)
01/09/2017
- 29 -
Power feed
The feed selection lever (see Figure 38) allows the machinist to engage or disengage the apron for longitudinal or
cross feeding tasks.
Sometimes it is necessary to rock the carriage handwheel or
the cross feed handwheel to assist in fully engaging the
chosen feed gears. to prevent inadvertent apron damage, the
apron is equipped with an internal lockout system that
prevents the feed selection lever and half-nut levers from
being engaged at the same time. However, before engaging
the apron for any longitudinal feed operations, make sure
that the carriage lock is loose and the carriage is allowed to
move freely, or the feed system may be damaged.
Moving the feed selection lever upwards from the central
or disengaged position engages the cross slide for
in-and-out facing operations. Figure 38
Moving the feed selection lever downwards from the central disengaged position, engages the carriage for
left-or-right longitudinal turning operations.
The speed at which the carriage travels is set with the feed speed dials ,the feed direction is changed by the feed
direction lever on the headstock..
NOTICE! A high feed rate or threading at a high speed reduces your reaction time to disengage the apron or
leadscrew to avoid a crash with the spinning chuck. When threading, making too deep of a cut can result in the half
nut binding with the leadscrew causing an impaired ability to disengage the half nut to avoid a chuck crash. pay close
attention to the feed rate you have chosen and keep your foot poised over the brake pedal. Failure to fully understand
this may cause the carriage to crash into the chuck.
Feed settings
Various feed rates are achieved on this lathe by moving knobs, levers, and rearranging change gears according to the
threading chart located on the headstock..
To set up for a power feed operation:
1. Disconnect lathe from power!
2. Open the change gear’s door on the left-hand side of the headstock to expose the change gears.
3. look at the lathe feed rate chart, and
find the required feed rate for your
turning or facing operation. See
Figure 39, some numbers are carriage
feed, and some numbers are cross
feed. If for example, a carriage feed
rate of 0.083mm is needed, the
change gears and feed dials must be in
the following positions:
Figure 39
Page 31
Instructions Manual for AL-346V (L555D)
01/09/2017
- 30 -
4. The quick change gearbox there are four knobs, turn the first knob to “4” position, turn the second knob to “S
position, turn the third knob to “C” position and turn the fourth knob to “I” position. See Figure 40.
Leaving 0.08mm–0.15mm backlash between gear teeth, arranges the 24 teeth change gear to 120 teeth and 120
teeth to 48 tooth change gear.
Figure 40
5. Rotate the spindle by hand to verify no binding exists, and close the gear door.
Thread settings
Regardless of the example given below, the setup procedure on this lathe is the same for metric, inch threads. These
thread selections are indicated by a series of letters and numbers shown on the headstock threading charts. First, the
change gear positions are checked and rearranged if indicated by the chart. Next, the quick change gearbox knobs and
levers are moved to specific positions also indicated by the chart.
To set up for threading:
1. Disconnect lathe from power!
2. Open the change gear door on the left-hand side of the headstock to expose the change gears.
3. Review the threading chart for the required thread to be cut (see Figure 41). The chart indicates that to cut a 0.75
metric thread, the change gears and feed dials must be in the following positions:
Figure 41
4. Turn the first knob of the quick change gearbox to “2” position, turn the second knob to “M” position, turn the
third knob to “A” position and turn the fourth knob to “I” position. See Figure 40. Leaving 0.08mm–0.15mm
backlash between gear teeth, arranges the 24 teeth change gear to 120 teeth and 120 teeth to 48 tooth change gear.
5. Rotate the spindle by hand to verify no binding exists, and close the gear door.
Page 32
Instructions Manual for AL-346V (L555D)
01/09/2017
- 31 -
Feed direction lever
Selects the direction for power feed.( See Figure 36). When lever
is positioned to the right side, the carriage will move to the left
along the bed, or the cross feed will travel toward the front of the
lathe. (See Figure 42)
Feed selection lever
To prevent apron and drive system damage, the apron is equipped
with an internal lockout, meaning that in order to engage the half nut Figure 42
for threading, this lever must be moved to the central or the disengaged position. Also keep in mind that just as with
longitudinal feed operations, before any threading operation. You must first verify the carriage lock (see Figure 43) is
disengaged, or the feed system may be damaged.
Half-nut lever
When the feed selection lever and carriage lock are
disengaged, the half-nut lever (Figure 43) can be
moved downward from the disengaged upper
position to clamp the half nut around the leadscrew
for threading operations.
CAUTION! Do not engage the half nut if the
leadscrew will rotate over 200 rpm, or if the
carriage lock is applied. Disregarding this warning
may cause damage to the bearings or the leadscrew
shear pin to break.
Figure 43
Thread dial
When cutting metric threads and the pass has been completed, the thread dial (see Figure 44 & Figure 45) allows the
machinist to disengage the carriage from the leadscrew, and quickly return the carriage for the next pass. Based on the
thread being cut, and what is indicated on the thread chart, the dial indicates where the machinist must re-clamp the
half nut in order to resume the same thread to avoid cross-cutting threads. The thread dial chart is located on the
quick change gearbox cover.
Figure 44 Figure 45
Page 33
Instructions Manual for AL-346V (L555D)
01/09/2017
- 32 -
When cutting inch threads, the thread dial must be disengaged from the leadscrew, and the half nut clamped to the
leadscrew until the threads are complete. Otherwise the path of the same thread will be lost. All carriage returns for
non-metric threads are made by backing the tool point out of the thread, and reversing spindle rotation with the
spindle ON/OFF lever.
To engage the thread dial, loosen the mounting cap screw, then pivot the dial into the leadscrew so the gear teeth
mesh with the leadscrew. Retighten the cap screw to hold the thread dial in place.
SECTION 5MAINTENANCE
Schedule
For optimum performance from your machine, follow this maintenance schedule and refer to any specific instructions
given in this section.
Every 6–8 hours of running time:
• Clean/vacuum lathe.
• Wipe down unpainted cast iron, including leadscrew, with way oil or other quality metal protectant.
• lubricate ball oilers and change gears.
• Check oil reservoirs .
Each Week:
• Check cutting fluid system. Clean tank and replace cutting fluid as necessary.
Each month:
• Check/adjust v-belt tension.
Every six months:
• Change oil in headstock, gearbox, and apron.
Cleaning
Cleaning the lathe is relatively easy. Disconnect the lathe before cleaning it. Remove chips as they accumulate.
Vacuum excess metal chips and wipe off the remaining cutting fluid with a dry cloth when finished for the day. Chips
left on the machine soaked with water-based cutting fluid will invite oxidation and gummy residue to build up around
moving parts. Preventative measures like these will help keep your lathe running smoothly. Always be safe and
responsible with the use and disposal of cleaning products.
Ball oiler and change gears lubrication
When lubricating ball oilers, we recommend using an oil gun. See Figure 46-50.
Figure 46 Figure 47
Page 34
Instructions Manual for AL-346V (L555D)
01/09/2017
- 33 -
Figure 48 Figure 49
Figure 50
Oil Reservoirs
Checking & adding oil
The headstock, gearbox, and apron have oil reservoirs that are equipped with sight glasses for quickly checking oil
levels. Before and after every use, make sure that the oil levels are correct. Figures 51-56 show the gearbox locations
of the sight glasses and the fill/drain plugs.
Figure 51 Figure 52
Page 35
Instructions Manual for AL-346V (L555D)
01/09/2017
- 34 -
Figure 53 Figure 54
Figure 55 Figure 56
Recommended oil types
Headstock.....................ISO 32#
QC gearbox .................ISO 68#
Apron ...........................ISO 68#
To add oil to the reservoirs:
1. Clean the area around the fill plug clean to prevent debris from falling in the reservoir when adding oil.
2. Remove the fill plug.
3. Slowly add oil until the oil level is centered in the sight glass.
4. Replace fill plug.
Changing oil
The oil in the reservoirs must be changed after the first three months of operation, then twice a year after that. If the
lathe is under heavy use, more frequent oil changes will be required to keep the gearboxes clean and ensure long
machine life. Some lathe owners believe that by using full synthetic oils in the gearboxes is a way to extend oil
change intervals. We do not recommend this practice. While synthetic oils are superior this lathe does not use a filter
to remove contaminants that are generated during normal use, such as when shifting gears. Changing the oils on a
frequent basis to flush out moisture and contaminants is still the best option to ensure long gearbox life.
Headstock oil Capacity ...........................4 liters
QC gearbox oil Capacity ........................2 liters
Apron oil Capacity ..................................1 liter
Headstock
Fill Plug
Headstock
Drain Plug
Gear Box
Fill Plug
Gear Box
Drain Plug
Headstock
Sight Glass
Gear Box
Sight Glass
Page 36
Instructions Manual for AL-346V (L555D)
01/09/2017
- 35 -
To change the oil in the reservoirs:
1. Run the lathe to bring the lathe gearboxes to a warm temperature and turn OFF the lathe.
2. Disconnect lathe From power!
3. Remove the headstock gear cover.
4. Using a funnel or cardboard ramp if desired to direct waste oil into the drain pan, position the drain pan under the
gearbox drain plug.
5. Remove the fill plug and the drain plug from the selected oil reservoir, and allow all oil to drain.
6. Re-install the drain plug; add oil to the reservoir until the sight glass reads full. Then reinstall the fill plug.
V-belt tension
After initial break in, the v-belts slightly stretch and seat into
the pulley. It is important to check and adjust them to
compensate for this initial wear. Check the tension thereafter
on a monthly basis.
To check the v-belt tension:
1. Disconnect lathe from power!
2. Open the headstock gear door.
3. Push the center of the v-belts with moderate pressure. The
v-belt deflection should be approximately 10mm.
See Figure 57 Figure 57
—if the belt deflection is greater than 10mm, use the wrench
to loosen the motor mount bolts (Figure 58) and slide the
motor downward until the deflection is correct.
4. Tighten the bolts and recheck the belts.
Figure 58
Cutting fluid system
WARNING! Biological and poison hazard! Use the correct personal protection equipment when handling cutting
fluid and by fluid manufacturer requirements to properly dispose of cutting fluid.
Checking cutting fluid system
When checking the cutting fluid system, the goal is to make sure there is enough cutting fluid, the chip level in the
first chamber is not too high, and the cutting fluid has not become rancid or contaminated.
To check the cutting fluid system:
1. Disconnect lathe from power!
2. At the tailstock end of the lathe, remove the pump access cover.
3. Inspect the level of cutting fluid inside the tank. The cutting fluid should be approximately an inch below the top of
the tank.
4. Using a wooden stick, check the level of the metal chips in the first chamber (see Figure 59). If the chips are 3⁄4
the height of the baffle, then remove the chips.
Page 37
Instructions Manual for AL-346V (L555D)
01/09/2017
- 36 -
5. Inspect the cutting fluid quality as outlined by the fluid
manufacturer and replace as recommended.
Cleaning cutting fluid system
1. Place the drain hose on the end of the coolant nozzle,
and pump the used cutting fluid into the drain bucket.
As soon as pumping is complete turn OFF pump
immediately.
2. Disconnect lathe from power!
3. Lift the tank assembly from the lathe stand.
4. Remove all metal shavings, any remaining cutting
fluid, and clean out the tank using rags and mineral spirits. Figure 59
5. Clean the intake screen on the pump.
6. Reinstall the cutting fluid tank into the lathe stand.
7. Cutting fluid to the manufacturer's required specific gravity, and fill the cutting fluid tank with the cutting fluid.
8. Reinstall the pump access cover.
SCETION 6: SERVICE
Troubleshooting
review the troubleshooting and procedures in this section to fix your machine if a problem develops. If you need
replacement parts or you are unsure of your repair skills, then feel free to call our technical support.
Motor & gearbox
Page 38
Instructions Manual for AL-346V (L555D)
01/09/2017
- 37 -
Operation and Work results
Page 39
Instructions Manual for AL-346V (L555D)
01/09/2017
- 38 -
Gib adjustments
The cross-slide and compound slide on this lathe each use a long steel wedge called a gib that is positioned between
the component and its dovetailed-ways. At the end of each gib is a gib screw one of which is shown in Figure 60.
The screws at each end of the gib oppose one another to move and hold the gib in a forward or aft position.
Depending which direction the gib is moved and held, the space between the sliding ways is increased or decreased to
control the rigidity of the cross slide and compound slide.
Before adjusting gibs, consider the lathe operation that you will perform because the cross slide and compound rest
leadscrew nuts may also have to be adjusted.
• For heavy turning and facing loads, tighten gibs for maximum rigidity, and loosen the leadscrew nuts for shock
loading protection.
• For high-tolerance turning and facing, and light-loads, loosen the gibs to allow for small slide movements without
binding or tool bit leap, and tighten the leadscrew nuts for fine handwheel control.
Most lathe operations exist between the two examples above. Finding the optimum combination for your
requirements may take practice, and trial and error before you are satisfied.
NOTICEWhen adjusting gibs, keep in mind that the goal of gib adjustment is to remove unnecessary sloppiness
from the slide without causing binding and excessive half nut wear.
Tip: The compound and cross slide gibs have a gib lock screw that are shown in Figures 60-61. This screw allows
the machinist to quickly tighten the locks to hold a gib and slide in a rigid position without having to tighten the gibs.
When finished with the need for increased rigidity, the gibs then are quickly unloaded back to their normal state by
loosening the screw.
Cross slide gib
Make sure the ways and leadscrew have been cleaned and
re-lubricated before beginning any adjustments.
To adjust the cross slide gib:
1. Disconnect lathe from power!
2. Loosen the gib lock shown in Figure 60
3. Loosen gib screw and adjust as required.
—to increase the slide tension, loosen the rear gib screw
1⁄8-turn, and tighten the front gib screw 1⁄8-turn.
—to decrease the slide tension, loosen the front gib screw
1⁄8-turn, and tighten the rear gib screw 1⁄8-turn.
4. Repeat adjustments as necessary until the gib screw drag
is acceptable. Figure 60
Compound slide gib
Figure 61 shows the gib arrangement for the compound
slide. the compound slide gib adjusts in the same manner
and with the same tools as the cross slide gib. However, in
this case, to increase or decrease tension, the gib
adjustment screw directions are reversed.
Figure 61
Page 40
Instructions Manual for AL-346V (L555D)
01/09/2017
- 39 -
Saddle gib
The saddle is supplied with a carriage lock on the front
right-hand side of the slide (see Figure 62). This bolt locks
the saddle in place for increased rigidity when making face
cuts. Before making adjustments to the saddle gib, make
sure that this lock is loose by turning it counterclockwise .
The saddle gib is located on the bottom of the back edge of
the slide (Figure 64). This gib is designed differently than
the cross or compound slide gibs. instead of being a
wedge-shaped plate, it is a flat bar. the gib pressure is
applied by four set screws. hex nuts secure these set screws
in place, so they will not loosen during operation.
To adjust the saddle slide gib: Figure 62
1. Disconnect lathe from power!
2. Clean and lubricate the lathe ways, slide, and leadscrew.
3. If the carriage lock is tight, loosen it two turns.
4. Loosen the jam nuts on the four set screws shown in
Figure 63, and adjust the set screws as follows:
—to tighten the carriage gib, tighten the set screws.
—to loosen the gib, loosen the set screws.
5. Repeat adjustments as necessary until the carriage
adjustment is acceptable.
6. Hold the set screws in place and tighten the jam nuts.
Figure 63
Backlash adjustment
Backlash is the amount of play in a leadscrew and can be felt as the free play in a handwheel when changing direction
of rotation. The amount of the backlash can be viewed on the handwheel micrometer-collar.
When adjusting backlash, tighten the components enough to remove backlash, but not so much that the components
bind the leadscrew, making it hard to turn. Over tightening will cause excessive wear to the sliding block and
leadscrew.
To adjust the cross slide backlash:
1. Feed the cross slide backwards (toward the front of the machine) until it reaches the end of its travel.
2. Remove the cap screw that secures the cross slide leadscrew nut (see Figure 64).
Figure 64 Figure 65
Page 41
Instructions Manual for AL-346V (L555D)
01/09/2017
- 40 -
3. Rotate the cross slide handle clockwise to feed the leadscrew nut out from under the cross slide, as shown in
Figure 65
4. Tighten the backlash adjustment cap screw shown in Figure 65 in small increments.
5. Hold the leadscrew nut and test after each adjustment by rotating the handwheel back-and-forth until the backlash
amount is acceptable.
6. Feed the leadscrew nut back under the cross slide and replace the cap screw removed in step 2.
Half nut adjustment
The half-nut mechanism can be adjusted if it becomes loose from wear. The half nut is mounted in ways with a gib
exerting pressure between components to reduce sloppy movement. The half-nut gib is a flat bar-type gib, similar to
the saddle gib, and is tensioned with three set screws.
To adjust the half nut:
1. Disconnect lathe from power!
2. Open the half nut and remove the thread dial.
3. Loosen the hex nuts on the set screws shown in
Figure 66
4. Tighten each set screw approximately 1⁄8 of a turn,
then retighten the hex nuts without moving the set
screws.
5. Move the carriage handwheel until the half nut can
fully close, then open/close the half nut several times
and notice how it feels. The half nut is correctly
adjusted when you feel a slight drag while opening Figure 66
and closing it. It should not feel too stiff or too loose.
6. Repeat steps 3–5, if necessary, until you are satisfied with the half nut adjustment, then reinstall the thread dial.
Feed clutch adjustment
This lathe is equipped with a feed rod clutch, shown in Figure 67-68, that connects the feed drive hub with the feed
rod through a set of spring-loaded internal balls. This clutch helps protect the apron feed system from overload. The
feed rod clutch comes set from the factory, and unless there is a problem, it needs no adjustment.
Figure 67 Figure 68
The clutch may slip if the path for the carriage or the cross feed is obstructed during turning or facing operations, the
tool bit crashes into a workpiece shoulder, the carriage lock is left applied when the feed selection lever is engaged, or
if too deep of a cut is taken, causing a sudden binding of the tool and workpiece.
Page 42
Instructions Manual for AL-346V (L555D)
01/09/2017
- 41 -
It is imperative to recognize however, the clutch is not a foolproof way of protecting your lathe from damage if an
operational mistake is made, a chuck-carriage crash occurs, or general machine overloading occur on a regular basis.
Never completely tighten the feed clutch set screw past its normal setting outlined in this procedure in an attempt to
completely eliminate clutch slip. Doing so will void the warranty, and can lead to a non-slipping clutch, resulting in
catastrophic gearbox damage.
To adjust the feed rod clutch:
Disconnect lathe from power!
—if the clutch slips during normal work loads and no problem exists with the feed system, the clutch spring pressure
must be increased. Tighten the two set screws 1⁄8-turn and recheck for slippage.
—if for any reason the clutch is bound up or locked, and does not slip when it should, the clutch spring pressure must
be reduced. Loosen the two set screws 1⁄8-turn, and recheck for slippage.
Tailstock lock
When pushed toward the spindle, the tailstock lock holds the tailstock firmly in place on the bedway with a locking
plate underneath. If the position of the lock lever is
difficult to use, the lever can be adjusted for the best
leverage.
To adjust the tailstock lock lever:
1. Unthread the stop pin (see Figure 69), and carefully
slide the tailstock from the lathe.
2. Tighten the hex nut 1⁄4-turn and reinstall the
tailstock.
3. Apply the tailstock lock lever and verify that the
tailstock is locked and the lever is where desired.
Readjust as necessary. Figure 69
Gap insert removal
This lathe is equipped with a removable gap insert that will allow for turning large diameter workpieces. The gap was
seated, pre-loaded, and then ground for precise mating and alignment at the factory. Removing the gap can cause the
lathe insert to slightly spring out of shape. When reinstalled, there is no guarantee that original alignment and flush
mating will be the same. For this reason, removing the gap is considered a permanent alteration to the lathe, even if it
is later reinstalled.
To remove the gap:
1. Disconnect lathe from power!
2. Loosen the preload set screw a few turns until it no
longer contacts the headstock (see Figure 70).
3. Tighten the dowel-pin jack nut to draw the pins from
the gap.
4. Remove the four cap screws that secure the gap to the
bed.
5. Tap the outside of the gap piece with a dead blow
hammer to loosen it, and, with the help of another
person, remove the gap piece. Figure 70
Page 43
Instructions Manual for AL-346V (L555D)
01/09/2017
- 42 -
Machine storage
If the machine is not properly prepared for storage, it may develop rust or corrosion. Use the recommendations in this
section to ensure that the lathe remains in good condition for later use.
To prepare your machine for short-term storage (up to a year):
1. Pump out the old cutting fluid, and remove and blow out lines with compressed air and a few drops of way oil.
2. Disconnect lathe from power!
3. Thoroughly clean all unpainted, bare metal surfaces, then apply a liberal coat of way oil.
4. Lubricate the machine as outlined in the lubrication section. Be sure to use the oil gun to purge all ball oilers and
the oil passages with oil.
5. Cover and place the machine in a dry area that is out of direct sunlight and away from hazardous fumes, paint,
solvents, or gas. Fumes and sunlight can bleach or discolor paint and make plastic guards cloudy.
6. Once or twice a month, depending on the ambient humidity levels in the storage environment, wipe down the
machine as outlined in step 3. Slide the carriage, tailstock, and steady rest down the lathe bed to make sure that
way spotting is not beginning to occur.
7. Every few months, manually rotate all gear driven components a few times in several gear selections. This will
keep the bearings, bushings, gears, and shafts well lubricated and protected from corrosion, especially during the
winter months.
To prepare your machine for long-term storage (a year or more):
1. Run the lathe and bring all gearboxes to operating temperature, then drain and refill the all gearboxes with fresh
oil.
2. Pump out the old cutting fluid, remove the lines, add a few drops of way oil into the lines, and blow out the lines
with compressed air.
3. Disconnect lathe from power!
4. Thoroughly clean all unpainted, bare metal surfaces, then apply a liberal coat of way oil, a heavy grease, or rust
preventative. Take care to ensure these surfaces are completely covered but that the rust preventative or grease is
kept off of painted surfaces.
5. Lubricate the machine as outlined in the lubrication section. Be sure to use the oil gun to purge all ball oilers and
the oil passages with oil.
6. Loosen or remove machine belts so they do not become stretched during the storage period. (Be sure to also affix a
maintenance note near the power button as a reminder that the belts have been loosened or removed.)
7. Place a few moisture-absorbing desiccant bags inside of the electrical box.
8. Cover and place the machine in a dry area that is out of direct sunlight and away from hazardous fumes, paint,
solvents, or gas. Fumes and sunlight can bleach or discolor paint and make plastic guards cloudy.
9. Slide the carriage, micrometer stop, tailstock, and steady rest down the lathe bed to make sure that way spotting is
not beginning to occur.
Page 44
Instructions Manual for AL-346V (L555D)
01/09/2017
- 43 -
BED ASSEMBLY
Index No Part No Description Size Qty
1 D330AV-11101 Lathe Bed 1
2 GB/T5782-M12X40 Screw M12X40 6
3 D330A-11205 Rack Gear 1
4 GB/T70-M6X15 Hex Socket Cap Screw M6X15 8
5 GB/T879-6X25 Pin 6X25 6
6 D330A-11204 Rack Gear 2
7 GB/T97.1-12 Washer 12 6
8 GB/T6170-M10 Nut M10 1
9 GB/T70-M10X35 Hex Socket Cap Screw M10X35 1
Page 45
Instructions Manual for AL-346V (L555D)
01/09/2017
- 44 -
Page 46
Instructions Manual for AL-346V (L555D)
01/09/2017
- 45 -
HEAD STOCK-1
Index No Part No Description Size Qty
1 D330A-21107 Head Stock
1
2 GB/T3452.1-20X2.65 Oil seal 20X2.65 1
3 D330A-21246 Sleeve
1
4 D330A-21235 Sleeve
1
5 GB/T819-M4X8 Screw M4X8 4
6 GB/T70-M6X40 Hex Socket Cap Screw M6X40 4
7 GB/T879-5X40 Pin 5X40 2
8 D330A-21113-2 Case frame
1
11 GB/T70-M6X20 Hex Socket Cap Screw M6X20 3
12 D330A-21124 Cover
1
13 D330A-21601 Gasket
1
14 GB/T9877.1-25X40X7 Oil seal 25X40X7 1
15 GB/T276-6005 Bearing 6005 1
16 D330DV-21215 Shaft
1
17 GB/T1096-A6X50 Key A6X50 2
18 D330DV-21217 Washer
1
19 GB/T1096-A6X10 Key A6X10 1
20 GB/T894.1-22 Circlip 22 1
21 D330A-21220 Gear 38T 1
22 D330DV-21221-1 Washer
1
23 GB/T894.1-35 Circlip
1
24 GB/T276-6203 Bearing 6203 1
25 D330A-21106 Front plug
1
26 GB/T78-M8X16 Screw M8X16 3
27 GB/T3452.1-40X3.1 Oil seal 40X3.1 1
28 GB/T70-M4X12 Hex Socket Cap Screw M4X12 3
29 D330A-21104 Cover
1
30 D330A-21602 Gasket
1
31 GB/T276-6204 Bearing 6204 2
32 D330A-21211 Washer
1
33 D33D-21223 Gear 34T 1
34 D330DV-21221 Washer
1
35 D330D-21221 Washer
2
36 D330D-21224 Gear 45T 1
37 GB/T1096-A8X55 Key A8X55 2
38 D330A-21212 Gear Shaft 16T 1
39 D330A-21225 Front plug
1
40 GB/T3452.1-47X3.1 Oil seal 47X3.1 1
41 D330A-21208 Nut
1
41a D330AV-21208 Nut
1
41b Magnet
φ5X7
4
Page 47
Instructions Manual for AL-346V (L555D)
01/09/2017
- 46 -
Index No Part No Description Size Qty
41c GB77-M4X6 Screw M4X6 4
42 D330A-21102 Collar
1
43 GB/T70-M6X25 Hex Socket Cap Screw M6X25 7
44 D330A-21103 End cover
1
45 D330A-21603 Gasket
1
46 GB/T297-30210/P5 Bearing 30210/P5 1
47 D330A-21207A Gear 37T 1
47a GB/T78-M4X10 Screw M4X10 1
47b GB/T6170-M4 Nut M4 1
48 D330AV-21227 Gear 45T 1
49 GB/T1096-A8X18 Key A8X18 1
50 D330A-21226 Gear 74T 1
51 GB/T894.1-72 Circlip 72 1
52 GB/T297-30212/P5 Bearing 30212/P5 1
53 D330A-21108 Front cover
1
54 D330A-21605 Gasket
1
57 GB/T1096-A6X40 Key A6X40 1
58 GB/T1096-A8X85 Key A8X85 1
59 D330A-21228A Spindle
1
60 GB/T70-M8X16 Hex Socket Cap Screw M8X16 4
61 GB2089-4.5X16X0.8 Spring 4.5X16X0.8 3
62 D330A-21230 Pin
3
63 D330A-21231 Cam
3
64 GB/T3452.1-25X2.4 Oil seal 25X2.4 1
65 D330A-21238 Shaft
1
66 GB/T893.1-42 Circlip 42 2
67 GB/T276-16004 Bearing 16004 2
68 D330A-21237 Gear 30T 1
69 GB/T894.1-20 Circlip 20 3
70 D330A-21239 Shaft
1
71 GB/T9877.1-24X32X5 Oil seal 24X32X5 1
72 D330A-21202 Washer
2
73 GB/T70-M5X16 Hex Socket Cap Screw M5X16 3
74 D330A-21101 Cover
1
75 D330A-21604 Gasket
1
76 D330A-21201 Gear 37T 1
77 D330A-21302 Screw
4
78 GB/T6172-M10 Gear M10 4
79 GB/T78-M6X16 Screw M6X16 2
79a GB/T6170-M6 Nut M6 2
80 D330A-21301A Washer
1
81 GB/T96-8 Washer 8 1
82 D330A-21105 Pulley
1
Page 48
Instructions Manual for AL-346V (L555D)
01/09/2017
- 47 -
Page 49
Instructions Manual for AL-346V (L555D)
01/09/2017
- 48 -
HEAD STOCK-2
Index No Part No Description Size Qt
y
1 Hexagonal socket head M16X1.5 2 2 D330A-21112-1 Cover board 1
2a D330A-21606 Gasket 1
3 GB/T70-M6X25 Hex Socket Cap Screw M6X25 6 4 JB/T7941.2-M16X1.5 Oil sight M16X1.5 1 5 D330A-81201 Cam lock stud 3 6 GB/T70-M6X12 Hex Socket Cap Screw M6X12 3 7 Back Plate For 3-Jaw 1 8 Three jaw chuck 1 9 D330A-21403 Shift fork 1
10 D330DV-21233 Front plug
φ16
2 11 D330AV-21121 Shift collar 1 12 GB/T1096-A5X14 Key A5X14 1 13 GB/T3452.1-30X3.1 Oil seal 30X3.1 1 14 D330A-21240 Washer 1 15 D330AV-21118 Handle base 1 16 GB/T78-M6X16 Screw M6X16 2 17 D330A-21249 Handle 1 18 D330DV-21117 Handle base 1 19 GB308-6 Ball 6 1 20 GB2089-6X26X1 Spring 6X26X1 1 21 GB/T77-M8X8 Screw M8X8 1 22 Position sign plate 1 23 GB/T818-M4X6 Screw M4X6 2 24 GB7271.3-M8 Cover M8 2 25 D330A-21248 Handle 1 26 D330A-21120 Handle base 1 27 GB308-5 Ball 1 28 GB2089-6X26X1 Spring 5X25X0.8 1 29 GB/T77-M6X8 lScrew M6X8 1 30 D330A-21402 Shift fork 1 31 D330A-21111 Rocker 1 32 GB/T879-4X18 Pin 4X18 1 33 D330A-21236-1 Shaft 1 34 GB/T3452.1-10X1.9 Oil seal 10X1.9 1 35 D330DV-21232 Front plug
φ14
2 36 Copper washer 16 1
Page 50
Instructions Manual for AL-346V (L555D)
01/09/2017
- 49 -
GEAR BOX
Page 51
Instructions Manual for AL-346V (L555D)
01/09/2017
- 50 -
Page 52
Instructions Manual for AL-346V (L555D)
01/09/2017
- 51 -
GEAR BOX
Index No. Part No. Description Size Qty.
1 D330A-3034 Cove
r
1 2 D330A-3035 Oil seal 1 3 D330A-3041 Shaft 1 4 D330A-3005 Gea
r
2 5 D330A-3066 Washe
r
2 6 D330A-3067 Shaft 1
6a GB894.1-20 Circlip 20 1
7 D330A-3027 Gea
r
1 8 D330A-3025 Gea
r
2 9 D330A-3044 Cove
r
2
10 D330A-3046 Oil seal 2 11 D330A-3045 Washe
r
1
12 D330A-3033 Shaft 1 13 D330A-3029 Gea
r
1
14 D330A-3031 Gea
r
1
15 D330A-3032 Gea
r
1
16 D330A-3003 Gea
r
1
17 D330A-3030 Washe
r
1
18 D330A-3002 Gea
r
1
19 D330A-3026 Gea
r
1
20 D330A-3007 Gea
r
1
21 D330A-3008 Washe
r
1
22 D330A-3009 Gea
r
1
23 D330A-3019 Shaft 1 24 CQ6230-3017B Cove
r
3
25 D330A-3004 Shaft 1 26 D330A-3006 Gea
r
1
27 CQ6230-3001E Gear box 1
27a Copper Washe
r
16 1
27c Screw M16X1.5 2
28 GB/T70-M6X12 Hex Socket Cap Screw M6X12 4 29 GB/T70-M6X16 Hex Socket Cap Screw M6X16 3 30 JB/T7940.4-6 Oil prot 6 1 31 GB/T276-6002 Bearin
g
6002 3
32 GB/T276-16003 Bearin
g
16003 1
33 GB/T276-6003 Bearin
g
6003 8 34 GB/T78-M6X8 Screw M6X8 1 35 GB/T1096-A5X35 Ke
y
A5X35 1 36 GB/T1096-C5X40 Ke
y
C5X40 1 37 GB/T1096-A6X15 Ke
y
A6X15 1 38 GB/T1096-A6X35 Ke
y
A6X35 1 39 GB/T1096-A6X90 Ke
y
A6X90 3 40 GB/T894.1-17 Circlip 17 1 41 GB/T893.1-35 Circlip 35 2 42 .D330A-3018 Gea
r
1 43 CQ6230-3068D Oil seal 1 44 CQ6230-3084D Cove
r
1 45 D330 A-3021 Shaft 1
Page 53
Instructions Manual for AL-346V (L555D)
01/09/2017
- 52 -
Index No. Part No. Description Size Q ty.
46 D330A-GB812 Nut 2 47 D330A-3016 Gea
r
1 48 D330A-3015 Shaft 1 49 D330A-3014 Gea
r
1 51 CQ6230-3086D Oil Seal 1 52 CQ6230-3022F Cove
r
1 53 CQ6230-3013D Shaft 1 55 CQ6230-3011D Shaft 1 56 D330A-3012 Position Piec 1 57 CQ6230-3089A Shaft 2 58 CQ6230-3049C Gear Rack 2 59 CQ6230-3062C Gear Rack 1 60 CQ6230-3091B Cove
r
2 61 CQ6230-3050C Gear Rack 1 63 CQ6230-3054F Boss 4 64 CQ6230-3088 Gea
r
4 65 CQ6230-3061B Washe
r
2 66 CQ6230-3059E Cove
r
1 67 CQ6230-3087D Oil seal 1
67a D330A-3001A Cove
r
1 68 D330A-3042 Cove
r
1
68a Cove
r
φ13
2 69 D330A-3070 Oil seal 1 70 GB/T879-4X28 Pin 4X28 1 71 GB/T879-5X26 Pin 5X26 2 72 GB/T879-5X28 Pin 5X28 2 73 GB/T301-51103 Bearin
g
1 74 GB/T301-51104 Bearin
g
1 75 GB/T70- M6X12 Hex Socket Cap Screw M6X12 5 76 GB/T70- M6X25 Hex Socket Cap Screw M6X25 6 77 GB/T70- M8X16 Hex Socket Cap Screw M8X16 2 78 GB/T70- M8X20 Hex Socket Cap Screw M8X20 6 79 GB/T78- M4X8 Screw M4X8 2
79a GB/T78- M5X8 Screw M5X8 1
80 GB/T77- M8X6… Screw M8X6 4 81 GB/T1096-A5X8 Ke
y
A5X8 4 82 GB/T819-M6X10 Screw M6X10 6 83 GB308-89-6 Ball 6 4 84 GB/T3452.1-12X1.8 Oil seal 12X1.8 4 85 GB/T3452.1-16X2.4 Oil seal 16X2.4 4 86 GB/T3452.1-22X2.4 Oil seal 22X2.4 1 87 GB/T9877.1-18X30X10 Oil seal 18X30X10 1 88 GB/T97.1-6 Washe
r
64 89 GB/T96-6 Washe
r
61 90 GB2089-6X18X0.8 Sprin
g
6X18X0.8 4 91 GB/T818-M4X6 Screw M4X6 12 92 Oil seal M22X1.5 1 93 Copper Washe
r
16X18X20 1 94 Copper Washe
r
17X19X30 1 95 JB/T7940.4-6 Oil port 6 1 96 GB/T70-M5X8 Hex Socket Cap Screw M5X8 2
Page 54
Instructions Manual for AL-346V (L555D)
01/09/2017
- 53 -
APRON
Page 55
Instructions Manual for AL-346V (L555D)
01/09/2017
- 54 -
APRON
Index No Part No Description Size Qty
1 CQ6230-4001 Apron Casting
1
2 GB/T5782-M8X30 Cap Screw M8X30 2
3 GB/T97.1-8 Washer 8 2
4 GB/T1096-5X36 Key 5X36 1
5 CQ6230-4008 Worm
1
6 CQ6230-4009 Bracket
1
7 CQ6230-4003 Half Nut Half Nut
1
8 GB/T70-M6X40 Cap Screw M6X40 3
9 GB/T6175-M6 Nut M6 3
10 CQ6230-4002 Bracket
1
11 CQ6230-4022 Gib
1
12 GB/T5782-M6X25 Cap Screw M6X25 2
13 GB/T77-M6X15 Screw M6X15 2
14 CQ6230-4007 Washer
1
15 CQ6230-4005 Bracket
1
16 CQ6230-4006 Shaft
1
17 GB/T70-M6X60 Cap Screw M6X60 1
18 CQ6230-4004 Gear
1
19 GB/T70-M6X15 Cap Screw M6X15 1
20 CQ6230-4046 Shaft
1
21 GB/T894.1-18 Circlip 18 1
22 GB/T78-M6X6 Screw M6X6 2
23 CQ6230-4035 Gear
1
24 GB/T119-5X10 Pin 5X10 2
25 CQ6230-4023 Shaft
1
26 GB/T5782-M6X10 Cap Screw M6X10 1
27 GB/T97.1-6 Washer 6 1
28 CQ6230-4024 Shaft
1
29 CQ6230-4021 Locating Block
1
30 CQ6230-4025 Fork
1
31 CQ6230-4044 Lever
1
32 GB/T117-5X40 Taper Pin 5X40 1
33 CQ6230-4045 Lever Hand
1
34 JB/T7941.2-M22X1.5 Oil seal M22X1.5 1
35 GB/T65-M5X12 Screw M5X12 2
36 CQ6230-4016 Washer
1
37 GB/T879-4X30 Pin 4X30 1
38 GB/T879-4X50 Pin 4X50 1
39 CQ6230-4014 Gear
1
40 CQ6230-4013 Gear
1
Page 56
Instructions Manual for AL-346V (L555D)
01/09/2017
- 55 -
Index No Part No Description Size Qty
41 GB/T119-5X33 Pin 5X33 3
42 CQ6230-4013 Gear
1
43 GB308---6 Steel Ball 6 2
44 CQ6123-14-01 Sping
2
45 GB/T77-M8X8 Screw M8X8 2
46 CQ6230-4015 Shaft
1
47 CQ6230-4042 Gear
1
48 CQ6230-4041 Lever
1
49 CQ6230-4039 Bracket
1
50 GB/T70-M6X45 Cap Screw M6X45 3
51 Bolt M10X1 1
52 GB/T819-M6X12 Screw M6X12 1
53 CQ6230-4048 Washer
1
54 CQ6230-4017 Gear
1
55 GB/T1096-5X10 Key 5X10 2
56 CQ6230-4018 Shaft
1
57 GB/T70-M5X10 Cap Screw M5X10 2
58 CQ6230-4043 Locating Block Shaft
1
59 GB/T879-5X25 Pin 5X25 1
60 CQ6230-4019 Gear
1
61 CQ6230-4020 Washer
1
62 CQ6230-4030 Shaft
1
63 GB/T7940.4—6 Oil Port 6 1
64 CQ6230-4031 Bracket
1
65 CQ6230-4036 Graduated Dial
1
66 CQ6230-4037 Cursor
1
67 CQ6230-4034 Hand Wheel
1
68 CQ6230-4032 Handle
1
69 CQ6230-4033 Handle screw
1
70 CQ6230-4038A Washer
1
71 CQ6230-4047 Screw
1
72 GB/T79-5X30 Screw 5X30 1
73 CQ6230-4011 Shaft
1
74 CQ6230-4010 Gear
1
75 CQ6230-4028 Shaft
1
76 CQ6230-4027 Washer
1
77 GB/T879-5X30 Pin 5X30 1
78 CQ6230-4029 Gear
1
79 CQ6230-4026 Washer
1
Page 57
Instructions Manual for AL-346V (L555D)
01/09/2017
- 56 -
COMPOUND REST
Page 58
Instructions Manual for AL-346V (L555D)
01/09/2017
- 57 -
COMPOUND REST
Index No Part No Description Size Qty
1 CQ6230-5010 Handle
1
2 CQ6230-5009 Boss
1
3 CQ6230-5008 Collar
1
4 GB/T83-M10×45 Screw M10×45 8 5 CQ6230-5005 Tool Post
1
6 CQ6230-5006 Shaft
1
7 CQ6230-5003 Nut
1
8 CQ6230-5004 Pin
1
9 GB2089-1.2×6×8 Spring 1.2×6×8 1
10 JB/T7940.4-6 Oil cup 6 3
11 D330A-S2003 Shaft
1
12 GB/T78-M6×16 Screw M6×16 1
13 CQ6230-5001 Compound
1
14 D330A-51203 ”T” Screw
2
15 GB/T6175-M10 Nut M10 2
16 CQ6230-5002 Compound
1
17 CQ6230-5024 Pin
1
18 D330A-S2001 Screw
1
19 CQ6230-5023 Gib
1
20 CQ6230-5021 Screw
2
21 CQ6230-5012 Nut
1
22 CQ6230-5011 Guide Screw
1
23 GB/T1096-A4×8 Key A4×8 1
24 GB/T301-51101 Bearing
2
25 Collar
1
26 Bolt
1
27 GB/T70-M6×25 Hex Socket Cap Screw M6×25 2
28 CQ6230-5013 Bracket
1
29 Collar
1
30 CQ6230-5014 Index Ring
1
31 Hand Wheel
1
32 Washer
1
33 GB/T70-M6×12 Hex Socket Cap Screw M6×12 1
34 Bolt
1
35 CQ6230-4037 Leaf spring
1
36 D330A-S2002 Bolt
1
Page 59
Instructions Manual for AL-346V (L555D)
01/09/2017
- 58 -
SADDLE
Page 60
Instructions Manual for AL-346V (L555D)
01/09/2017
- 59 -
SADDLE
Index No Part No Descri
p
tion Size
Qty
1 D330A-51101 Saddle 1 2 GB818-M5X12 Screw M5X12 8 3 D330A-51301 Wippe
r
1
4 D330A-51211 Cove
r
1 5 GB/T879-3X10 Pin 3X10 1 6 D330A-51216 Press plate 2 7 D330A-51303 Press plate 2 8 D330A-51204 Wippe
r
2 9 D330A-51215 Screw 1
10 D330A-S1001 Screw 1
11 GB/T118-6X45 Taper Pin 6X45 2 12 GB/T70-M10×30 Hex Socket Cap Screw M10×30 4 13 JB/T7940.4-6 Oil cu
p
66 14 D330A-51214 Screw 2 15 D330A-51102 Tool post 1 16 GB/T70-M6×12 Hex Socket CapScrew M6×12 1 17 D330A-51201 Bushin
g
1 18 D330A-51212 Gib 1 19 GB/T78-M4×12 Screw M4×12 2 20 D330A-51401 Nut 1 21 D330A-51202 Gea
r
1 22 GB/T78-M6×8 Screw M6×8 1 23 GB/T5782-M8×25 Screw M8×25 7 24 GB/T6175-M8 Nut M8 4 25 GB/T83-M8×25 Screw M8×25 4 26 D330A-51205 Press plate 2 27 D330A-51302 Wippe
r
1 28 D330A-51104 Press Plate 1 29 D330A-51105 Press Plate 1 30 GB/T1096-5×20 Ke
y
5×20 1 31 D330A-51103 Press Plate 1 32 GB/T879-4X25 Pin 4X25 1 33 D330A-51208 Index Rin
g
1
34 CQ6230-4037 Leaf sprin
g
1 35 D330A-51207 Hand wheel 1 36 D330A-51207-1 Washe
r
1 37 GB/T70-M6×16 Hex Socket Cap Screw M6×16 1 38 JD10-06027A Handle screw 1 39 JD10-06027 Handle 1 40 GB/T301-51102 Bearin
g
51102 2 41 D330A-51106 Bracket 1 42 GB/T70-M8×30 Hex Socket Cap Screw M8×30 2 43 D330A-51210 Washe
r
1 44 D330A-51206 Guide Screw 1 45 D330A-S1002 Handle 1 46 D330A-S1003 Lock Handle 1 47 D330A-S2003 Screw 1 48 D330A-S2001 Screw 1 49 GB/T97.1-5 Washe
r
51 50 GB/T70-M5×12 Hex Socket Cap Screw M5×12 1 51 D330A-S2002 Handle 1
Page 61
Instructions Manual for AL-346V (L555D)
01/09/2017
- 60 -
TAILSTOCK
Page 62
Instructions Manual for AL-346V (L555D)
01/09/2017
- 61 -
TAILSTOCK
Index No Part No Description Size Qty
1 CQ6230-4033 Handle 1 2 CQ6230-4032 Lever 1 3 GB/T77-M5X25 Screw M5X25 1
3a D330A-6044 Adjusting screw 1
4 D330A-6045 Washer 1 5 D330A-6005 Hand Wheel 1 6 CQ6230-4037 Leaf Spring 1
7 D330A-6010 Index Ring 1
8 GB/T70-M6X16 Hex Socket Cap Screw M6X16 4
9 D330A-6011 Bracket 1
10 JB/T7940.4-8 Oil Cup 8 3
11 GB/T301-51102 Bearing 1
12 GB/T1096-A4X15 Key A4X15 1
13 D330A-6006 Guide Screw 1
14 D330A-6023 Lock Nut 1
15 D330A-6015 Key 1
16 GB/T70-M4×12 Hex Socket Cap Screw M4×12 3
17 D330A-6012 Nut 1
18 D330A-6013 Quill 1
19 D330A-6001 Tail stock 1
20 D330A-6022 Lock screw 1
21 D330A-6021 Handle 1
22 D330A-6017 Shaft 1
23 D330A-6004 Handle 1
24 GB/T119-5×30 Pin 5×30 1
25 D330A-6018 Collar 1
26 GB/T79-M10×50 Screw M10×50 3
27 D330A-6003 Screw 2
28 D330A-6002 Base 1
29 D330A-6019 Shaft 1
30 D330A-6020 Base Shoe Black 1
31 GB/T6175-M12 Nut M12 1
32 GB/T97.1-12 Washer 1
33 D330A-6042 Washer 1
34 D330A-6041 Spring 1
35 D330A-6043 Washer 1
Page 63
Instructions Manual for AL-346V (L555D)
01/09/2017
- 62 -
CHANGE GEAR
Index No. Part No. Descri
p
tion Size Q ty.
1 GB/T70-M6X12 Hex Socket Cap Screw M6X12 2 2 GB/T96-6 Washe
r
62
3 D330A-91202 Gea
r
24T 1
4 GB/T1096-A5X8 Ke
y
A5X8 1 5 GB/T6175-M10 Nut M10 2 6 GB/T97.1-10 Washe
r
10 1 7 D330A-91208 Gea
r
120/127T 1 8 GB/T276-6003 Bearin
g
2
9 D330A-91209 Colla
r
1 10 D330A-91101 Quadrant 1 11 D330A-91210 Screw 1 12 GB/T893.1-35 Circlip 35 1 13 GB/T97.1-10 Washe
r
10 1 14 GB/T901-M10X60 Screw M10X60 1 15 D330A-91212 Washe
r
1
16 D330A-91206 Gea
r
48T 1 17 GB/T1096-A5X8 Ke
y
A5X8 1 18 D330A-91213-1 Washe
r
1
19 D330A-91201 Change gea
r
22T 1 20 D330A-91203 Change gea
r
26T 1 21 D330A-91204 Change gea
r
38T 1 22 D330A-91205 Change gea
r
44T 1 23 D330A-91207 Change gea
r
52T 1
Page 64
Instructions Manual for AL-346V (L555D)
01/09/2017
- 63 -
CONTROL SWITCH ASSEMBLY
Page 65
Instructions Manual for AL-346V (L555D)
01/09/2017
- 64 -
CONTROL SWITCH ASSEMBLY
Index No Part No Description Size Qty
1 D330A-11201 Guide Screw 1
2 D330A-11202 Rod 1
3 D330A-11102 Bracket 1
4 GB/T118-6X45 Taper Pin 6X45 2
5 GB/T70-M8X60 Hex Socket Cap Screw M8X60 2
6 JB/T7940.4-6 Oil cup 6 2
7 GB308---6 Ball 6 1
8 GB/T78-M6×10 Screw M6×10 1
9 D330A-11209-1 Bushing 1
10 D330A-11203 Feed Rod 1
11 D330A-11104-1 Key 1
12 GB/T879-4X25 Pin 4X25 1
13 D330A-11104 Bracket 1
14 GB2089-10X1X12 Spring 10X1X12 1
15 GB/T70-M6X12 Hex Socket Cap Screw M6X12 2
16 D330A-11105 Bracket 1
17 JB/T7271.1-M10X32 Handle ball M10X32 1
18 D330A-11206 Handle 1
19 GB/T894.1-32 Circlip 32 1
20 GB2089-1×5×30 Spring 1×5×30 1
21 GB/T77-M8X8 Screw M8X8 1
22 D330A-11207 Washer 2
23 GB/T879-4X24 Pin 4X24 4
24 CQ6230-3011D Shaft 1
25 GB/T879-4X20 Pin 4X20 1
26 GB/T879-4X30 Pin 4X30 1
27 D330A-3012 Position Piec 1
28 GB818-M4X50 Screw M4X50 2
29 Switch LXW5-11M 2
30 GB818-M4X20 Screw M4X20 2
31 D330A-71207 Bracket 1
32 D330A-71207-1 Cover 1
33 GB/T6175-M4 Nut M4 4
34 GB/T879-4X12 Pin 4X12 1
Page 66
Instructions Manual for AL-346V (L555D)
01/09/2017
- 65 -
BED AND DRIVE ASSEMBLY
Page 67
Instructions Manual for AL-346V (L555D)
01/09/2017
- 66 -
BED AND DRIVE ASSEMBLY
Index No Part No Description Size Qty
1 D330A-13401A-1 Cover 1
2 D330A-13402A-1 Cover 1
3 D330A-14220 Cover 1 4 D330A-11107 Trestle 1 5 GB/T97.1-10 Washer 10 5 6 GB/T5782-M10X30 Screw M10X30 3 7 GB/T1096-8X35 Key 8X35 1 8 D330A-11106 Pulley 1
9 GB/T78-M6X8 Screw M6X8 1 10 Motor 1 11 GB/T97.1-8 Washer 8 4 12 GB/T5782-M8X25 Screw M8X25 4 13 GB/T6175-M8 Nut M8 2 14 GB/T5782-M8X45 Screw M8X45 2 15 GB/T70-M8X30 Hex Socket Cap Screw M8X30 2 16 GB/T70-M12X35 Hex Socket Cap Screw M12X35 2 17 GB/T97.1-12 Washer 12 4 18 GB/T5782-M12X30 Screw M12X30 2 19 GB/T70-M10X30 Hex Socket Cap Screw M10X30 4 20 GB/T117-6X30 Taper Pin 6X30 2 21 V-Belt AV13-895 2 22 GB/T70-M5X8 Hex Socket Cap Screw M5X8 8 23 GB/T97.1-5 Washer 5 9 24 GB/T97.1-4 Washer 4 6 25 GB818-M4X6 Screw M4X6 2 26 GB818-M4X10 Screw M4X10 4 27 D330A-71209 Bracket 1 28 GB/T6175-M4 Nut M4 4 29 Switch-1 QKS8 1 30 GB/T70-M5X30 Hex Socket Cap Screw M5X30 1 31 GB/T6175-M5 Nut M5 2 32 Switch-2 QKS8 1 33 GB818-M4X30 Screw M4X30 2 34 Washer 2 35 GB/T70-M6X12 Hex Socket Cap Screw M6X12 1 36 D330D-14208B-1 Cover 1 37 GB/T97.1-6 Washer 6 3 38 Nut M6 1
Page 68
Instructions Manual for AL-346V (L555D)
01/09/2017
- 67 -
STAND/ COOLANT PUMP/LAMP
Page 69
Instructions Manual for AL-346V (L555D)
01/09/2017
- 68 -
Page 70
Instructions Manual for AL-346V (L555D)
01/09/2017
- 69 -
STAND/ COOLANT PUMP/LAMP
Index No Part No Description Size Qt
y
1 D330A-14205A-1 Chip guard 1
2 GB/T97.1-6 Washe
r
618
3 GB/T70-M6X10 Hex Socket Cap Scre
w
M6X10 4 4 D330A-14203A-1 Oil pan 1 5 GB/T70-M6X20 Hex Socket Cap Scre
w
M6X20 6 6 D330A-71206-4 Bracket 1 7 GB/T70-M5X15 Hex Socket Cap Scre
w
M5X15 5 8 Working lam
p
1
9 GB/T6175-M6 Nut M6 8
10 GB/T818-M6X10 Scre
w
M6X10 22
11 D330B-14206-1 Right bracket 1 12 D330AV-14201A Left cabinet 1 13 D330B-14206 Left bracket 1 14 D330A-14207-1 Back plate 1 15 D330A-14202A Right cabinet 1 16 D330D-14208B Cove
r
4
17 GB/T70-M4X6 Hex Socket CapScre
w
M4X6 1
18 D330A-92206 Bracket 1 19 D330A-92202 Colla
r
1 20 Liquid nozzle 1 21 Pin 3X16 1 25 D330A-14204A-1 Oil pan 1 26 GB/T6175-M4 Nut M4 6 27 GB/T97.1-4 Washe
r
44 28 Bracket 2 29 GB/T818-M4X10 Scre
w
M4X10 4 30 Shaft 1 34 D330A-14209A Cove
r
1
35 GB/T70-M10X30 Hex Socket Cap Scre
w
M10X30 1 36 GB/T6175-M10 Nut M10 2 37 D330A-11237 Drawsprin
g
1 38 D330A-11236 Pin 1 39 GB/T70-M6X40 Hex Socket Cap Scre
w
M6X40 1 40 D330A-11242 Shaft 1 41 D330B-14215 Shaft 1 42 GB/T879-5X28 Pin 5X28 2 44 GB/T879-5X40 Pin 5X40 1 45 D330A-11235 Rocke
r
1
46 GB/T78-M6X12 Scre
w
M6X12 1 47 Cove
r
1 48 Switch YBLXW-5/11N1 1 49 GB/T818-M4X40 Scre
w
M4X40 2
50 D330DV-11210 Brake dollo
p
1 51 D330B-14216 Shaft 1 52 D330A-14212-1 Brake pedal 1 53 D330D-14213B Funnel 1 54 Screw Lose 2 55 D330B-14401 Water tank 1 56 D330A-92203 Connectin
g
1 57 Pum
p
1 58 D330A-14211A Cove
r
1 59 D330DV-11211 Washe
r
1
Page 71
Instructions Manual for AL-346V (L555D)
01/09/2017
- 70 -
Page 72
Instructions Manual for AL-346V (L555D)
01/09/2017
- 71 -
ELECTRIC ASSEMBLY-1
Index No Part No Description Size Qty
1
Protective circuit breaker DZ47-63C3 1P 3
2
Protective circuit breaker DZ47-63C16 2P 1
3
Transformer JBK5-100VA-TH 1
4 GB/T818-M4X6 Screw M4X6 24
5
Fixing Rail Clip
1
6
Rubber Cushing
4
7 D330AV-14102 Cover
1
8 GB97.1-4 Washer 4 6
9
GB/T70- M4×10
Hex Socket Cap Screw
M4×10
6
10 GB6170- M5 Nut M5 4
11 D330A-71401 Sheet Copper
1
12 GB818-M4X12 Screw M4X12 5
13 Earth Sign Plate
1
14 Locker Connecting M16X1.5 7
15 D330B-14103 Base
1
16 Locker Connecting M20X1.5 3
17 Junction Box
1
18 Fixing Rail Clip
1
19 Adjustable resistor 1
20 Intermediate relay JZC4-40-24V 1
21 Contactor Relay HH54P 3
22 Source 5V 1
23 GB/T70- M5X12 Hex Socket Cap Screw M5X12 4
24 Fixing Rail Clip 1
25 D330AV-14101 Electric Box 1
26 Power Switch LW26-20 1
27 Knob LA125H-BE102C 1
28 Fast-Stop Knob LA125H-BE101C 1
29 Button switch LAY3-11/2 1
30 Power Light AD62-22D/S 1
31 GB6170- M4 Nut M4 3
32 Plate 1
33
DRC ror the spindle speed
1
34 D330DV-21255 Angle iron
1
35
Probe
1
36 D330B-14220A CoVer 1
37
Hazard warning lamp LAY7-24V 1
38
Plate
1
Page 73
Instructions Manual for AL-346V (L555D)
01/09/2017
- 72 -
Index No Part No Description Size Qty
1 D330AV-14301 Electric Box
1
2 D330AV-14303 Base
1
3 GB/T70- M6X10 Hex Socket Cap Screw
M6×10
4
4
Inverter 1
5 D330AV-14302 Cover 1
6 GB/T818-M6X10 Screw
M6×10
10
7
Junction box 20 Seat 1
8 GB818-M4X6 Screw M4X6 4
10 GB818-M4X12 Screw M4X12 2
11
Braking resistor 1
12 Locker connecting M20x1.5 4
Page 74
Instructions Manual for AL-346V (L555D)
01/09/2017
- 73 -
STEADY REST
Page 75
Instructions Manual for AL-346V (L555D)
01/09/2017
- 74 -
STEADY REST
Index No Part No Description Size Qty
1 D330A-8205 Knob 3
2 GB/T879-3X20 Pin M6X8 3
3 D330A-8207 Collar 3
4 D330A-8206 Pressing Lever 3
5 D330A-8208 Pressing Collar 3
6 D330A-8209 Pressing Base 3
7 D330A-8204 Locking screw nut 1
8 GB/T78-M6X10 Screw M6X10 3
9 D330A-8202 Upper Body 1
10 GB/T79-M6×16 Screw M6×16 3
11 GB/T6170-M6 Nut M6 3
12 D330A-8203 Locking lever 1
13 GB/T879-4×20 Pin 4×20 1
14 GB/T119-6X20 Pin 6X20
15 D330A-8201 Base Body 1
16 D330A-8210 Pressing Plate 1
17 D330A-8211 “T”Screw 1
18 GB/T6170-M12 Nut M12 1
19 GB/T97.1-12 Washer 12 1
Page 76
Instructions Manual for AL-346V (L555D)
01/09/2017
- 75 -
FOLLOW REST
Index No Part No Description Size Qty
1 D330A-8205 Knob 2
2 GB/T879-3X20 Pin 3X20 2
3 D330A-8207 Collar 2
4 D330A-8304 Pressing Lever 2
5 D330A-8303 Pressing Collar 2
6 D330A-8209 Pressing Base 2
7 D330A-8301 Body 1
8 GB/T78-M6X10 Screw M6X10 2
9 GB/T70-M8×40 Hex Socket Cap Screw M8×40 2
10 GB/T79-M6×16 Screw M6×16 2
11 GB/T6170-M6 Nut M6 2
Page 77
Instructions Manual for AL-346V (L555D)
01/09/2017
- 76 -
CHUCK SAFTY GUARDOptional
Index No Part No Description Size Qty
1 GB/T6170-M6 Nut M6 1
2 GB/T79-M6 ×16 Screw M6 ×16 1
3 D330A-71101 Switch box 1
4 GB/T70-M6× 45 Hex Socket Cap Screw M6× 45 2
5 D330A-71203 Shaft 1
6 D330A-71204 Protecting Cover 1
7 GB/T879-4X25 Pin 4X25 1
8 D330A-71402 Cover 1
9 GB/T6175-M3 Nut M3 4
10 GB/T93-3 Washer 4
11 GB/T97.1-3 Washer 3 4
12 GB/T818-M3X12 Screw M3X12 4
13 GB/T818-M4X25 Screw M4X25 2
14 Switch LXW5-11M 1
15 GB/T818-M6X8 Screw M6X8 2
16 Handle 1
Page 78
Instructions Manual for AL-346V (L555D)
01/09/2017
- 77 -
LEADSCREW SAFTY GUARDOptional
Index No Part No Description Size Qty
1 D330A-1030 Bracket 1
2 GB/T70-M5×10 Hex Socket Cap Screw M5×10 2
3 D330A-F7001 Spring cover 2
4 D330A-1034 Left bracket 1
5 GB/T70-M6×12 Hex Socket Cap Screw M6×12 8
6 D330A-1033 Bracket 2
7 GB/T70-M4×10 Hex Socket Cap Screw M4×10 2
8 D330B-1029G Bracket 1
9 D330A-1031 Bracket 1
Page 79
Instructions Manual for AL-346V (L555D)
01/09/2017
- 78 -
SAFTY CLUTCH FOR FEED RODOptional
Index No Part No Description Size Qty
1 D330A-3013S/01A Clutch 1
2 GB/T308-6 Steel ball 6 4
3 GB/T879-4X42 Pin 4X42 1
4 D330A-3020D-1 Clutch 1
5 GB/T1358-6X1X25 Spring 6X1X25 4
6 GB/T77-M8X8 Screw M8X8 4
7 GB/T78-M6X10 Screw M6X10 1
8 D330A-CS004-1 Cover 1
9 GB/T301-51104 Bearing 1
10 GB/T879-5X25 Pin 5X25 1
11 GB/T9877.1-18X30X10 Oil seal 18X30X10 1
12 CQ6230-3013D Shaft 1
Page 80
Instructions Manual for AL-346V (L555D)
01/09/2017
- 79 -
QUICK CHANGE TOOL POSTOptional
Index No Part No Description Size Qty
1 Flange nut M16-2 1
2 Shaft bushing
3 Tool post lever hub
4 Handle
5 Lever
6 Body
7 Hex nut M10-1 2
8 Wavy wash 10mm 2
9 Flat wash 10mm 2
10 Set screw M10-1X45 2
11 Set screw M10-1X20 8
12 Tool holder 16mm 1
13 Tool holder 20mm 1
Page 81
Instructions Manual for AL-346V (L555D)
01/09/2017
- 80 -
SADDLE POSITION LOCALIZEROptional
Index No Part No Description Size Qty
1 D330A-DC003 Index ring 1
2 GB/T879-3X6 Pin 3X6 1
3 D330A-DC004 Shaft 1
4 GB/T79-M6X10 Screw M6X10 1
5 D330A-DC001 Casting body 1
6 D330A-DC002 Plate 1
7 GB/T70-M6X10 Hex Socket Cap Screw M6X10 2
8 GB/T79-M5X12 Screw M5X12 2
Page 82
Instructions Manual for AL-346V (L555D)
01/09/2017
Loading...