CHESTER CONQUEST SUPER User manual

CONQUEST SUPER
LATHE
MANUAL
Chester UK Lt d
Clwyd Close
Hawarden Industrial Par k Hawarden
Chester CH5 3PZ
Tel: [phone]
sales@chesterma ch i n etools.com
www. ch esterma ch i n etools.com

Contents
1. Machine Tool Specifications and Parameters 3
2. Safety 5
2.1 Safety operation guide 5
2.2 Safety warnings and description of notes & markings 5
2.3 Safe operation of lathe chuck 6
2.4 General safety for lathe operator 7
2.5 Chuck protection 9
2.6 Noise level 9
2.7 Electrical requirements 10
3. Installation 11
3.1 Tools required for installation 11
3.2 Unpacking 11
3.3 Cleaning 12
3.4 Operating sites 12
3.5 Dimensions and installation drawings 13
3.6 Trial run 14
4. Machine tool structure 15
4.1 Headstock 15
4.2 Lathe Chuck 15
4.3 Tailstock 16
4.4 Toolpost 16
4.5 Longitudinal carriage 17
4.6 Crossslide 17
4.7 Saddle 17
4.8 Change gears 18
4.9 Parts List 20
5. Special accessories 24
6. Maintenance and services 25
6.1 Daily & Monthly checks 25
6.2 Cleaning 25
6.3 Lubrication oil 25
7. Services 25
7.1 Fault comparison table 26
7.1.1 Engine and electrical 26
7.1.2 Symptoms in operation and work 28
7.2 Adjusting pad iron 32
7.3 Replace motor brush 32
8. Machine tool electrical 33
8.1 Electrical schematic diagram 33
8.2 Electrical maintenance figures 34
Appendix
Lathe certificate 37
Packing list 39

Machine Tool Specifications and Parameters
Centre Height
90mm
Swing Over Bed
180mm
Swing Over Cross-slide
100mm
Between Centres
350mm
Width of Bed
83mm
Toolpost Tool Size
8mm
Max Size of Arbor of Turning Tool
8×8 or 10x10
Speed Range
50-2500rpm
Cross-slide Travel
65mm
Longitudinal Travel
325mm
Top-slide Travel
70mm
Chuck Diameter
80mm
Spindle Bore
20mm
Spindle Taper
MT3
Tailstock Quill Travel
40mm
Tailstock Taper
MT2
Outside diameter of tailstock sleeve
22mm
Number of longitudinal and lateral feed amounts
1
Number of Metric thread kinds
10
Range of Metric threads able to be processed
0.4-2.0mm
Number of Inch thread kinds
19
Range of Inch threads able to be processed
12-52tpi
Switch
Forward turning/Reverse turning
Switching voltage
220v
Power cord length
120mm
Fuse
10A
Motor type
Ordinary brush motor
Motor power
400kW (0.5hp)
Motor voltage
110 / 220V

Product Size
Machine tool length/width/height
720×300×290mm
Bottom dimensions (length / width)
700×22mm
Net/gross weight
40kg
Packing case length / width / height
800×370×420mm
Additional instruction
1. When required to process Inch threads, it is necessary to change the lateral automatic feeding screw.
2. Warranty period: 12 months

Safety
2.1 Safe Operation Guide
This machine tool is a high speed and powerful cutting machine tool, which, if used improperly, will lead to danger.
Operators are requested to read the Safe Operation Guide described below before operating the
Machine. Care should be taken to observe and maintain the lathe in a normal use environment during subsequent use,
so as to avoid any danger from occurring.
Important
Only professional persons who have referred to the operating manual and safe operation machine training, can operate
the machine.
Be sure to read the Safe Operation Guide carefully described below before operating the machine:
• Keep the machine tool and the working area clean and orderly.
• All the protective devices and the cover plates should be in place and the side covers should be closed.
• Take care not to place any objects within the machining area, as there may be the risk of collisions with the
rotating parts or moving parts of the machine tool.
• Do not touch or step across the moving or rotating parts of the machine.
• Before starting up the machine, you must be aware of to shut down the machine properly.
• Do not operate the machine under the overload.
• In case of any unforeseen circumstances occurring, the operation of the machine should be stopped immediately.
• Before installing a chuck or any other accessories on the spindle, the machine power should be cut off, so as to
prevent the spindle from rotation.
• In the absence of checks and assertions of whether your fixtures are compatible with the machine, your fixtures
should not be installed.
• Check the load capacity of the centers used to ensure that they meet the requirements.
• When leaving the machine, be sure to switch the power off.
• The maximum weight of the workpiece on the machine tool is 40kg.
• The chuck should be correctly and securely mounted on the spindle of the machine.
• Care should be taken to ensure that the workpiece is clamped firmly, and the spindle speed should not exceed
the safe speed of the chuck.
• As there may be contact with the human body, especially when using materials of small diameters, under no
circumstances should the bar materials extend beyond the end of the spindle of the headstock that has no
special protection or corresponding support shall be used.
• There is a marked speed limit for the chuck, and no shift of speed during running posted on the lower right corner
of the headstock. Alongside an electric warning sign posted on the electrical cabinet and a warning sign for no
touching on the workpiece (or chuck) with hand is allowed when the workpiece is rotating posted on the
protective cover of the chuck in this machine tool, to remind you to take care during your operation.
• The Emergency Stop button is a red button displayed on the control panel. When this is pressed down, the motor
will stop its rotation immediately, which should be used in an emergency situation to prevent the machine tool
from collision.
• Do not process toxic or flammable materials, which will emit deadly fumes. Before processing, consult your
material suppliers, so as to obtain safe materials.
• Do not carry out any maintenance on the machine when it is charged. Check the control components and the
operating elements of the machine tool regularly, to ensure that the machine works normally. When carrying out
an overhaul of the machine tool, qualified parts & components shall be used for replacement.
• Do not carry out any modifications or change of the equipment presumptuously, which, if necessary, shall be
treated by this company. Any personal injury or mechanical damage to the machine tool caused by any
modification or change shall not be within the scope of the responsibility of this company.
• Keep children far away from the machine tool.

2.2 Safety Warning and Description of Notes & Markings
This manual contains safety and prevention measures to protect the users and prevent the machine tool from being
damaged, which, according to their nature of safety, is classified into warning, notice and additional information as notes
or description. Please read the warning, notice and notes carefully before operating the machine tool.
2.3 Safe operation of Lathe Chuck
There must be an obvious marking of the highest safe rotation speed posted on all the workpiece clamping devices, the
spindle rotation speed should not exceed this rotation speed. It must be pointed that the highest safe rotation speed
marked is generally assumed to be a speed under the ideal working conditions. In the following cases, lower spindle
rotation speeds shall be selected for use.
a. Use the chuck to clamp the workpiece under noisy working conditions.
b. If there is an exact damage in the chuck, it is dangerous to rotate under the high rotation speed, especially when a
chuck of grey cast iron matrix is used, there may be a crack caused in the damaged point.
c. The clamping force required is not known before clamping.
d. All of these factors, such as the strength of the workpiece to be clamped, the clamping surface and the balance of
the workpiece shall have a larger impact on the highest safe rotation speed that can be used.
When the workpiece is rotating, it cannot be clamped tightly due to the impact of the centrifugal force, which contains the
following elements:
a. The rotation speed used is too high.
b. The weight and type of the jaws used are not standard ones.
c. The working radius of the jaws is not right.
d. The lubrication conditions of the jaws are poor.
e. Poor balance status.
f. The clamping force used has not taken the dynamic factor into consideration.
g. The cutting force is too large
h. Whether the workpiece is clamped internally or externally.
These factors must be carefully noted. As these factors have different effects due to their different uses, the manufacturer
is impossible to provide specific parameters for general use, because these factors are beyond the range of the control of
a machine tool manufacturer.
Warning
There may be injury to the customers or damage to
the equipment, if the operation methods or procedures
designated are not observed.
Notice
There may be damage to the equipment, if the operation
methods or procedures designated are not observed.
Note
Notes are used to point out the additional information
besides the warnings and notices.

2.4 General safety for the Lathe Operator.
1. When clamping the workpiece, the workpiece should be free of oil or grease.
Each component should be securely fastened. Do not attempt to clamp any workpiece that is extremely unfit or very
difficult for clamping.
Do not clamp any workpiece(s), which exceed the weight allowed for the machine tool. When lifting the workpiece,
the proper method of hanging and holding should be grasped.
2. Ensure that the oil or grease on the hand tools or operating handles is cleared off.
Ensure that the structure of the hand tools and operating handles used is suitable for safe holding by the hands.
3. When operating, the hand tools and operating handles should be gripped firmly and their appropriate gripping
positions should be selected properly.
Do not grab improper gripping positions of the hand tools and operating handles for operation. Do not use too much
force in operation.
4. The gripping positions recommended for use should be used to grip the hand tools and operating handles.
5. Do not leave other hand tools and operating handles behind on the chuck.
6. Do not use any broken, damaged or defective tools.
7. Ensure that the workpiece is clamped securely on the chuck or other gripping fixtures.
8. Special attention should be paid to irregular workpieces.
9. Care should be taken to large flashes and burrs on the workpieces.
10. Always pay attention to the correct selection of tools at work.
11. It is not recommended to have any other hand tools and operating handles that have not been fixed on the chuck.
12. It is not recommended to use tools without handles.
13. When necessary, always use the chuck, the follower rest and the centres to support the workpiece.
14. The positions of the tools in the hexagonal hole and the screwdriver slot should be correct.
15. Care should be taken to ensure that the locking screw is tightened.
16. When the preparatory work has not been finished, do not hurry up for operation.
17. Without the right tools, or when not equipped with the right tools in the workshop, do not use alternative tools.
18. When the lathe is in its energized state, do not remove the protective plate or to open the door.
19. There should not be any hands or bodies moving within the working area of the moving parts.
Attention should be paid that there may be machine parts dropping. Pay attention when moving hands and bodies,
keep a relative position with the lathe.
Pay attention to the tool gripped in your hand or the other part that has been inserted into the chuck or the workpiece.
Ensure that you do not place your hand or any other part of your body on a position, where you may get hurt by the
chuck or the workpiece.
20. Care should be taken not to cause an accident due to toggle the handle, to manipulate the clutch or to switch on the
power.
21. Master each function and various methods of operation.
22. Never put your hand on the chuck or the workpiece to stop the rotation of the spindle.

23. For the lathe driven through the clutch, when the clutch is in the disengaged state, the spindle should stop its rotation,
or otherwise the clutch or the brake device should be adjusted.
24. When the machine is not in use, ensure that the power is switched off.
25. Before changing a new workpiece, it is necessary to stop the rotation of the chuck.
26. Attention should be always paid to check the transmission of transmission parts such as the chuck and the belt pulley
to find out whether it is loose.
27. When the chuck wrench is in the chuck, do not start the spindle.
28. When you are not able to focus on your work, do not operate the machine, so as to prevent from any accident.
29. When making any preparations to carry out other aspects of the operation of the machine, such as the tailstock, be
careful that there is no dangers of collision or falling off.
30. Care should be taken that the chuck shield and other protective covers of the machine are tight without any
looseness.
31. Anyone with long hair should tie this back or cover your hair, when operating the machine, so as to prevent the
danger of the hair from being rolled into the rotating part of the machine tool.
32. When carrying out other operations close to the rotating part of the machine, pay extra attention to safety.
33. Attention should be always paid to the operations of filing smooth and deburring. Special attention should be paid,
when the file and the deburring tool get close to the chuck, as the file and the deburring tool may collide with the
chuck.
34. When using the clutch for driving, and when carrying out the measuring work, you should pay attention that the clutch
is in the shutdown position.
35. When placing your hand on the clutch handle, attention should be paid to the rotation and the shutdown positions of
the spindle.
36. When measuring the workpiece clamped in the chuck, ensure that the spindle of the machine is in its shutdown
position.
37. When using a measuring meter on the machine, ensure that the motor is in its shutdown position.
38. Before carrying out the operation of the machine, the operator should put on any protective articles that meet the
requirements specified in the safety standards and during the operation of the machin, the protective articles should
not be removed.
39. Care should be taken to any cutting chips flying out from the machine.
40. An appropriate protective plate should be selected for the operation position.
41. When the chuck or the workpiece is in motion, be sure not to step across or bypass the chuck or the workpiece to
carry out the adjustment. Do not step across or bypass the chuck or the workpiece.
When adjusting the machine tool or the workpiece, pay attention to the position where the workpiece is placed. Do
not step across or bypass the chuck or the workpiece to tighten up any parts on the lathe. Do not step across or
bypass the chuck or the workpiece to remove the iron chips.
42. Be sure to master an appropriate method of loading and not to apply force from an inappropriate position.
43. Do not install a workpiece that is too big or too heavy for the machine tool.
44. Be sure not to install a workpiece that is too big or too heavy for the operator.

45. Use the necessary tools to process the workpieces.
46. Be sure not to use excessive force on the accessory or the joystick.
47. When polishing and deburring, do not be too hard.
48. Always use the proper tools for deburring, do not rush when deburring and pay attention to the burrs on the chuck
and the workpiece.
49. Before changing and replacing the gear, the power must be cut off, so that all the motion in the machine is stopped.
50. Pay attention to find out whether there is any part of the chuck/machine tool in operation possible to fall off.
2.5 Chuck Protection
The machine is equipped with a chuck guard, suitable for the conventional standard chuck of the machine tool.
For the machine tool equipped with the chuck protection, before the spindle of the machine tool is put into running, the
chuck protection must be in an enclosed state.
1. If the machine is equipped with a larger chuck, a chuck guard suitable for the chuck
diameter should be used instead.
It is recommended that the jaws should not be extended beyond the outside diameter of
the chuck, to prevent the jaws from collision with the chuck. For safe operation, always
be careful not to let the jaws extended beyond the outside diameter of the chuck.
2. When a plain chuck is used in the machine, the chuck guard must be removed.
If you require a plain chuck, you should use a chuck guard designed for this.
In this instance, it should be determined specifically only on the premise that a plain chuck
is used and the user shall be responsible for each condition.
2.6 Noise Level
According to GB/T16769-1997 "Metal Cutting Machine Tool Noise Level Measurement Methods", in the 6 positions at a
distance of 1 meter from the machine tool, the maximum noise level is less than 78dB (A).
Note: The measurement condition is that the spindle equipped with a standard chuck is running at its highest rotation
speed.

2.6 Electrical Requirements
If there are no special instructions, the power adopted in this machine tool shall be 220V,50Hz AC power supply and its
line voltage fluctuations shall not exceed ±10%.
If the unstable state of the input voltage exceeds the allowable limits, it is impossible then for the machine tool to achieve
the rated horsepower of the machine tool. The machine tool can be running normally, but it is in no way to transfer the
power as indicated.
The reliable ground is a guarantee for the personal safety and the safe operation of the machine. When the user
introduces the power line for the machine tool, the protective grounding wires should first be connected to the cooling
water pipe or the ground rod close to the machine.
The power inputted into the machine should be grounded. The user should check the ground wires to check whether they
are reliable.

Installation
Safe Installation
Read the Operation Instructions before handling the machine.
Warning! Protective glasses should be worn throughout the overall installation process.
This is a heavy miniature machine tool. When unpacking or moving the machine, you should have some assistance.
3.1 Tools required for installation
Before installing your machine, you should have the following tools to hand; these are not included with the machine.
Name
Q’ty
Name
Q’ty
Protective glasses (for each
operator)
1
6 mm flat washers (required
for fixation on countertop)
4
Towel
1
Electric drill (required for
fixation on countertop)
1
Cleaner
1
Drill bit (8mm) (required for
fixation on countertop)
1
Level meter (required for
fixation on countertop)
1
No. 2 flat head screwdriver
1
M6 hexagon bolt (used for
fixation, length determined
according to the thickness of
the countertop) (required for
fixation on countertop)
4
Flathead screwdriver
1
Unpacking wrench（14mm）
1
3.2 Unpacking
Take care when unpacking the case and check that there are no damaged parts. If any parts are missing or damaged,
please contact us.
Note: Due to the fact that the Conquest Super Lathe has a variety of configurations, if there is any discrepancy between
the text and the actual product, the manufacturer and this company reserves the right of final interpretation.

Ser.No.
Name
Q’ty
Ser.No.
Name
Q’ty
1
Operation Instructions （ no
Shown in Figures）
1
6
Allen wrench
1 set
2
Chuck key
1
7
Plastic oiler
1
3
Chuck anti-jaw 3 pcs/pair
1 pair
8
Morse No.2 fixed
centre
11
4
Rubber shock pad (with
screws, washers)
4 sets
9
Metric change gear
1 set
10
Fuse
1
5
Double-end Spanner：8-10、14-17
1 each
11
Others
If any additional components are missing (such as nut or washer), we will be happy to provide you with it or, for sake of
convenience, you can purchase at your local hardware store.
3.3 Cleaning
The unpainted surfaces are coated with anti-rust oil, which plays a protective role in transportation, but will not corrode.
The cleaning agent has a dissolving capacity that should be used to clean the surfaces.
For the purpose of thorough cleaning, some parts may need to be removed. For the machine to achieve the best
performance, be sure to clean the coatings of all the moving parts or the sliding contact surfaces. As the paint on the
machine is readily soluble, chlorinated solvents such as acetone should not be used. When using any type of cleaning
product, always follow the requirements of the manufacturer.
Warning! As the burning point of gasoline is comparatively low, if gasoline is used to clean the machine, it may
cause an explosion or fire. Therefore, when cleaning the machine, we do not recommend using gasoline for
cleaning.
After thoroughly cleaning the machine, the bearing surfaces, the screw and the guideway surfaces of the machine should
be coated with a thin layer of oil. Please note that, during the cleaning process, no anti-rust oil or cleaning agents should
enter into the bearing surfaces under the guideway oil scraper plate.
Take care when cleaning the machine, if the cleaning solvent is accidentally inhaled or swallowed, this may result in
poisoning. In the workplaces, where the ventilation is inadequate, the use of these solvents may affect human health or
cause a fire. Therefore, when using these cleaning solvents, it is necessary to choose a well-ventilated place, so as to
prevent any injury.
3.4 Operating sites
The Conquest Super Lathe is a bench lathe. Please refer to the data sheet for the weight and dimensions of the machine.
Having considered the existing and the expected requirements, it is required to provide a reasonable space for your
machine.
The lathe should be installed on a heavy and high-strength workbench, which has enough height, so as to prevent the
operator from leaning forward to carry out the operation.
When required for moving, the weight of the lathe and the auxiliary equipment and their handling requirements should be
taken into consideration. There must be plenty of bright light, so that the operator will not have to work in the dark place.
In order to improve the safety of the machine, we wholeheartedly recommend that the screws of the machine should be
firmly installed on the sturdy workbench and that the size of machine should be ensured, so as to improve the rigidity of
the machine tool as well.

Get the four screws with their four rubber shock pads in alignment with the holes in the base respectively. Four holes
should be drilled on the work bench according to the machine chassis, then get 4 M6 screws and washers (prepared by
the user himself) ready, align the machine with the chassis and then tighten up the screws.
The machine should not be placed in the following locations:
• Where there is strong vibration source externally
• The humidity is too high
• Close to a heating source
• In direct sunshine
If the machine is installed near to a vibration source, it will affect the accuracy of the machine.
3.5 Dimensions and installation drawings

3.6 Trial Run
A trial run is advised at first to prevent any accidental switching on.
Do not connect the power supply, firstly, pull the high & low speed handle behind the spindle box to the low speed
position (as indicated by the label) and rotate the chuck with hand to verify that the position is right.
Ensure that the carriage has left the chuck and is in its
disengaged position, then insert the power wires into the
socket of the work site (220V), open the red cover of the
emergency stop switch on the top of the electrical switch box,
press the green button to turn the power on.
Then turn the positive/reverse rotation switch to the positive
rotation position. Finally rotate the stepless variable speed
regulation button clockwise slowly.
Pay attention for a new start-up each time, the acceleration
should not be too fast and, as the electronic circuit board has a
protective function, if accelerating too quickly, it may cause a
circuit failure, while the lathe will not start.
Having stayed in this position for 1-2 minutes, the spindle
speed should be increased gradually from the lowest speed
and run for a few minutes before stopping.
Stop the machine tool and check all parts, so as to make sure that everything works smoothly. In the meantime, check
the quality of installation.
Notice
When the lathe is running, the direction of the spindle or the screw should not be changed! If you do this, this will damage
your lathe. Such damage would not be covered under the warranty.
• Forward rotation/Off/Reverse rotation switch: Change the spindle rotation clockwise/neutral/counterclockwise.
When the lathe is running, its direction can’t be changed.
• Emergency Stop Button: Pressing down this button, it is in a shutdown state and the motor will be stopped.
• High/Low Speed Range Control: Spindle rotation speed range: High speed: 100-2500RPM Low speed: 100-1100
RPM. When the lathe is running, its high/low speed can’t be changed.
• Screw Forward/Neutral/Reverse Screw: Change the screw rotation direction. When the lathe is running, the
screw rotation direction can’t be changed.

Machine Tool Structure
4.1 Headstock
The headstock is one of the important components of this machine tool,
which has a great effect on the machining accuracy.
The headstock is fixed by screws on the left top of the bed of the
machine tool, the power for the headstock operation is provided by the
motor mounted on the rear side of the bed, the rotation of the motor is
transmitted through a synchronous belt to the pulley of the headstock to
change the gear transmission mode, so that the spindle has such two
speeds as the high and the low speed.
4.2 Lathe Chuck
The 3-jaw chuck equipped with two sets of clamping chucks, which are called positive-jaw chuck and anti-jaw chuck,
supplied in accompaniment with the machine tool as shown in the figure.
The positive-jaw chuck is used to clamp the workpiece from its internal or external side (the internal or external side
suitable for comparatively small diameter workpieces). The reverse rotation chuck is used to clamp comparatively
smooth workpieces (external). (The positive-jaw chuck has been mounted in the chuck).
Replacing the lathe chuck
Replace the positive-jaw chuck and the anti-jaw chuck in the 3 jaw chuck according to the
sequences but they must be mounted into their corresponding slots according to the No.
of the positive-jaw chuck and the anti-jaw chuck.
Unplug the power
Insert the chuck key, turn it counter clockwise and rotate the chuck to remove all the
positive-jaw chucks.
Check the interior of each slot of the chuck to clear off debris.
Number each chuck to be No. 1, 2 and 3 or No. A, B and C. The number can be found at
the bottom of the slots of each chuck.
Find out the No.1 chuck.
Insert the chuck key into the chuck.
Turn the chuck key clockwise to find out the top end of the flange slot (see the figure).
Insert the chuck No 1 into the slot and go on to rotate until the chuck is fixed.
Repeat these steps said above for the chucks No.2 and 3.
When replacing the positive chucks of the 3 jaw chuck, attention should be paid to the points below:
• Beginning from the chuck No1, the replacement must be carried out in order.
• Before assembly, the chuck, the slot and the positive-jaw chuck must be cleaned thoroughly.
• It is strictly forbidden to use the positive-jaw chuck and the anti-jaw chuck in a mixed way.
• Do not clamp the positive-jaw chuck too tightly in the chuck, or otherwise it will cause damage and lose its
accuracy.
• When machining non-standard workpieces, it is forbidden to mount non-standard chuck and a 4-jaw chuck
should be mounted to fulfill the job.
• There is always a small jerking motion in the 3-jaw chuck. When the 3-jaw chuck is used to clamp the workpiece,
it is recommended to measure the concentricity of it. If the test value is too high, it is recommended to use a 4-
jaw chuck instead of the 3-jaw chuck, use a concentricity meter for a test and adjust the workpiece until its best
position is achieved.

4.3 Tailstock
The tailstock, which slides along the guideway on the machine
bed, is fixed on any position of the base with a fast locking
device. The tailstock sleeve is a Morse No. 2 taper and a fixed
matching centre (thimble), such as fixed centre, rolling
center, drill chuck taper shank and drill bit centre.
The components of the tailstock include, as shown in the figure:
• Locking handle: To lock the sleeve at a fixed position.
• Tailstock handwheel: Turn it to adjust the length of the
part extending out of the tailstock.
• Tailstock locking handle: To lock the Tailstock at a
position on the machine bed.
• Adjusting bolt：When adjusting the tailstock, it helps to
keep the tailstock at its center position.
• Sleeve：To fix the conical tools, such as the dead centre.
• Adjusting nut：To adjust the right and the left centre of the
tailstock.
Dead centre
When the length of the protruding part of the workpiece exceeds 2.5 times of its diameter, there shall be a dead centre
placed (which is equipped in this machine tool) or a rolling centre placed (purchased separately).
When using it, the top of the dead centre shall be coated with oil and it shall be rotated with a very slow speed. The
heated friction will reduce the service life of the centre point and may do damage to the workpiece. If it must be required
for a higher speed, please use the rolling centre instead.
Mounting the dead centre
Verify that the dead centre and the tailstock bore are clean without any dirt, dust, grease or oil. If there is dirt or excessive
oil on the equipment surfaces, the Morse drill chuck taper will not be locked tightly.
Turn the tailstock handwheel to make the fixed component extending about 20MM.
Place the dead centre Into the tailstock bore and the dead centre will be fixed in its suitable central position.
When taking out the dead centre, rotate the turn plate on the tailstock to make the fixed component retracted into the
tailstock and, in this way, the dead centre will be jacked out of it.
4.4 Toolpost
The tool post can be rotated to the predetermined 4 90-degree position or any angle in-between and can fix 4 tools one
by one at most.
Tool use:
Tool is selected according to the requirement.
The tool bit exposed out of the tool post shall be as little as possible
and shall be fixed securely with two nuts, which is helpful to
maintain its sturdiness.
Ensure that the tool bit is just on the center line of the workpiece.
If not, use the gasket to have it just on the center line.
Notice: Check the tool bit to find out whether it is at the correct
height and ensure that the tool bit should be kept on a same
height with the dead centre of the tailstock.
If both the tops are at the same height or the top of the tool bit is
lower than the top of the dead centre, then the height is correct.

If the tool bit is higher than the dead centre, then grind the tool to a suitable position
or replace it with a correct tool.
4.5 Longitudinal Carriage
Move the longitudinal carriage so that it is perpendicular to the longitudinal axis and
the precision displayed on the dial plate on the hand crank is 0.025mm.
Adjust the longitudinal carriage:
Rotate the hand crank to draw back the longitudinal carriage from the starting point
for 0.5mm at least and then
move it forward to its starting point.
Note: This step will eliminate any non-controlled move of the lead screw (or
backlash), so that the readings on the hand wheel scale are more accurate.
Turn the hand crank to make the "0" marking line on the dial plate on the longitudinal
carriage in alignment with the "0.000" marking line. As long as the hand crank going
back is avoided, continue to move longitudinal carriage in the same direction and readings shown in the dial plate on the
hand crank will be accurate.
After moving the longitudinal carriage away from the workpiece, don't forget to move the longitudinal carriage to "0"
marking line gain and to get ready for the next processing, that is to remove the original scale, namely zeroing.
Remember that the cross holding plate should be moved backward from the workpiece.
4.6 Cross slide
Similar to the longitudinal carriage, the precision on the dial plate of the cross slide is
displayed to be 0.025mm. The cross slide, which is different from the longitudinal
carriage, can be rotated at an angle and then can move back and forth at this angle
along the axis.
Adjust the cross slide:
Loosen the bolt of the cross slide, see the figure for detail, so that the cross slide can
be rotated.
According to the requirement of your steps, rotate the cross slide to an angle.
Tighten up the bolt of the cross slide and check the angle again to ensure that it does not
move in the tightening up.
Use the hand crank of the cross slide to move the cross slide back and forth at a new angle along the axis. Similar to the
hand crank after adjustment of the longitudinal carriage, before setting up "0" on the dial plate on the hand crank, ensure
that the original scale should be removed, namely zeroing. Remember that the cross holding plate should be moved
backward from the workpiece, or otherwise it will not be accurate.
4.7 Saddle
There are the manual and the automatic control for the longitudinal movement of the machine tool.
Manual movement:
Rotate the hand crank clockwise to move the lathe tool post rightward
And rotate the hand crank counter clockwise to move the lathe tool
post leftward.
Same as the description for the longitudinal carriage said on the
previous page, set up the scale on the dial plate on the hand crank,
remove the original scale, namely zeroing.
Remember that the cross holding plate should be moved backward
from the workpiece.

Automatic movement of the lathe tool post:
The feed rate is determined by the rotational speed of the screw and the rotational speed of the screw is determined by
the combination of gears in the head of the machine tool. The normal rotation of the feed rate is much lower than the
thread cutting. Therefore, it is very important that, when cutting threads, the combination of the gears must be checked to
be correct. The lathe is set up according to the normal rotation speed before delivery from the factory. When machining
different threads later on, the combination of the gears are required to be changed frequently.
Warning!
Pay close attention to the feed rate before closing the automatic feed device. Be alert and ready all the time to stop the
power, or otherwise the lathe tool post will collide against the rotating spindle, causing damage and possible injury!
Use the automatic feed, when in normal rotation：
1）Use the manual feed handwheel to move the lathe tool post to the required position.
2）Set the Forward / Stop / Backward lever of the screw to the Forward position.
3）Adjust the rotation speed of the machine tool to the speed required.
4）Pull the automatic feed lever downward to the automatic feed position.
5）Pull the automatic feed lever upward to the automatic feed stop position.
6）The automatic feed can also be operated in the opposite direction, shutdown the lathe and change the direction of the
screw.
4.8 Change Gears
There are various gear combinations for a variety of different feed rates in this machine tool, as such there is a
comparison table posted on the machine body to explain how to select the gear combinations for each thread.
The standard size is the metric thread (Note: This lathe is a
metric machine tool, the inch thread is an approximate value and, if required to process the inch
threads, it is required to purchase an Inch machine tool).
Comparison Table:
You can, according to the size of the thread, find out the appropriate gear combinations and by setting up the automatic
feed rate, machine the thread you want.
Note. There are many details of the thread cutting not included in this manual, for example, the cutting tools the cutting
speeds and the detailed relationship with the different types of metals. If you do not have this knowledge, please consult
professionals before proceeding!
During the period of the engagement of the change gears, first cut off the power. Turn the switch of the machine tool to
the "Off" position and then loosen the two hexagon socket head cap screws on the gear housing to dismount.
The simple gear rotation structure is illustrated on the left and the intermediate idler gear is illustrated on the right in the
figure above, as long as the size of the gears can meet the connection between A and D, this will function.

• Loosen the hexagon socket head screws to ensure that the change gears A and D should be connected to
change gears B and C.
• Disengage the gears B and C completely, loosen the nut on the fixed axle and re-adjust as required to ensure
them engaged with gear A.
• When replacing the change gears required for change of the thread pitch for thread cutting, attention should be
paid to the small keys on each axis and the gear marking engraved on each gear; do not engage them in the
wrong way.
• Notice: For the system of a set of gears, the gear D has a pad with a key on the screw shaft used for positioning,
which is designed to ensure that gear D and gear C are engaged and connected, these should be in alignment
and maintained in a straight line.
• Go on to regulate gears B, C and A, then rotate the spindle by hand. Try to rotate back and forth and observe
and, when the situation is normal, tighten up the nut of the axis on the change gear frame.
• When recovering the gear housing, ensure that the two cylinder head bolts are tightened up.
Turning Thread
Turning the screw threads is, in fact, to rely on the shape of the tool for cutting, the product operation instructions will not
contain any relevant provisions of the cutting tool types, the scopes, the cutting speeds and suitable materials. For
specific details, consult an experienced professional or refer to the manual for details.

Parts List