CHESTER DB8VS Manual de usuario

DB8VS

LATHE

Manual

Chester UK Lt

Clwyd Close

Hawarden Industrial Par

Hawarden

Chester CH5

3PZ

Tel: 01244

531631

sales@chesterma

etools.com

www.

esterma

etools.com

Safety guidelines

Personnel working with any machine tools are required to follow the safety instructions stated below in order to

prevent any accident that may occur.

• Appropriate personal protective equipment (such as safety glasses, dust coat, shoes etc..) must be worn

whilst operating the machine.

• Long hair or ties must be tightened up.

• Hand gloves should never be used.

• Workpieces and cutting tools must be properly clamped.

• Chuck keys must be removed when not in use.

• Do not leave any loosened parts on the machine table.

• Ensure you know how to operate the machine before switching on.

• Machine guards must be put in position when in use.

• Keep hands away from any rotating objects.

• Cutters used should be correctly ground and in good condition.

• Use the correct cutting speed, feed rate, and depth of cut from time to time.

• Spilled oil or cutting fluid must be swiped off immediately.

• Never use a hand file or emery cloth for finishing lathe work pieces.

• Do not leave a running machine unattended.

Index

1. Machine Markings ………………………………………………………………………………………………… 4

2. Proper Use ………………………………………………………………………………………………………… 4

3. Technical Data …………………………………………………………………………………………………….. 4

4. Safety Indications …………………………………………………………………………………………………. 5

4.1 Residual Risk …………………………………………………………………………………………………. 5

5. Transport of the Machine ………………………………………………………………………………………… 6

6. Unpacking and Cleaning …………………………………………………………………………………………. 6

6.1 Cleaning the Machine ……………………………………………………………………………………….. 6

7. Extent of supply and accessories ……………………………………………………………………………….. 7

7.1 Extras ………………………………………………………………………………………………………….. 7

8. Installing the Machine ……………………………………………………………………………………………. 8

8.1 Using a substructure ………………………………………………………………………………………… 8

8.1.1 Using the Machine with the Substructure ………………………………….……………………. 8

8.1.2 Installation Drawing ………………………………………………………………………………… 9

9. Power Connection ……………………………………………………………………………………………….. 10

9.1 Lathes with Frequency Connector …………………………………………………………………….……10

10. Control Elements ……………………………………………………………………………………………….... 11

11. Design of the Lathe ……………………………………………………………………………………………… 12

11.1 Lathe Bed …………………………………………………………………………………………………... 12

11.2 Headstock ………………………………………………………………………………………………….. 12

11.3 Lathe Saddle ………………………………………………………………………………………………. 12

11.4 Tailstock ……………………………………………………………………………………………………. 12

12. Operation of the Lathe …………………………………………………………………………………………. 13

12.1 Lathe saddle with cross and top slide ………………………………………………………………….. .13

12.1.2 Turning tapers with the cross slide …………………………………………………………….... 13

12.2 Tailstock ……………………………………………………………………………………………………. 13

12.3 Speed and Feed …………………………………………………………………………………………... 14

12.3.1 Arrangement of belt drive and feed gear ……………………………………………………….. 14

12.3.2 Adjusting the speed ……………………………………………………………………………….. 14

12.3.3 Adjusting the feed ………………………………………………………………………………..... 15

12.3.4 Pitches for thread-cutting ………………………………………………………………………..... 15

13. Adjustments on the lathe ………………………………………………………………………………………. 16

13.1 Guide rail with adjusting gib on the lathe saddle …………………………………………………. 16

13.2 Tapered gib on the cross slide ……………………………………………………………………… 16

13.3 Tapered gib on the top slide ………………………………………………………………………... 16

13.4 Adjusting the tapered gib for the leadscrew nut ………………………………………………….. 16

13.5 Adjusting the lathe chuck guard ……………………………………………………………………. 17

13.6 Replacing the clamping devices on the head spindle holding fixture …………………………... 17

13.7 Fitting the follow rest (optional) ………………………………………………………………………17

14. Working notes and tools………………………………………………………………………………………… 18

14.1 Turning operations ……………………………………………………………………………………. 18

14.1.1 Straight turning ………………………………………………………………………………… 18

14.1.2 Facing and recesses ………………………………………………………………………….. 18

14.1.3 Turning between centres ……………………………………………………………………… 18

14.1.4 Turning short tapers with the top slides ……………………………………………………… 19

14.1.5 Thread-cutting (example of male thread) ……………………………………………………. 19

14.2 Cutting tool types and indications ……………………………………………………………………. 19

14.3 Bits and countersinks ………………………………………………………………………………….. 20

15. Maintenance ……………………………………………………………………………………………………… 21

15.1 Machine care ………………………………………………………………………………………….. 21

15.2 Lubrication……………………………………………………………………………………………… 21

15.3 Maintenance …………………………………………………………………………………………… 21

16. Warranty …………………………………………………………………………………………………………... 21

17. Troubleshooting ………………………………………………………………………………………………….. 22

18. Wiring diagram …………………………………………………………………………………………………… 23

19. Exploded views and spare parts list ……………………………………………………………………………. 24

1. Machine Markings

This machine bears a characteristics plate with the name of the machine, item number, and key technical data. Keep it

clean and legible at all times.

2. Proper Use

This lathe has been designed and manufactured for straight turning and facing round or regularly-formed three, six or

twelve square workpieces in metal, plastic, or similar materials. The leadscrew also enables thread cutting.

Do not use this machine for materials that constitute a heath hazard or create dust, such as wood, Teflon, etc..

Follow the indications of this manual, as well as the information labels on the lathe. This machine is suitable for use in

schools, industrial workshops, and for d.i.y work.

Note:

Any unauthorised modifications to this machine, improper use or disregard for the safety standards, will

exempt the manufacturer from any liability for resulting harm to persons or objects and shall result in the

invalidity of claims under the guarantee.

3. Technical Data

Max. Swing over bed

210mm

Distance between centres

400mm

Max. Swing over cross-slide

110mm

Centre height

105mm

Width of bed

135mm

Toolpost tool size

10mm

Speed range

50-2500rpm

Cross-slide travel

110mm

Chuck diameter

100mm

Spindle bore

21mm

Spindle taper

MT3

Tailstock quill travel

70mm

Tailstock taper

MT2

Metric threads can be cut

0.403mm

Inch threads can be cut

10-44TPI

Motor power

750W (1hp)

Net weight

110kg

Dimensions

1050 x 560 x 570mm

4. Safety Indicators

Read the operating and maintenance instructions carefully before starting, using or performing maintenance work on

the machine, and prior to any other operations. Only authorised personnel who are completely familiar with the

machines handling and working principles are authorised to use it.

Repair, maintenance and upgrading may only be carried out by technical personnel and when the machine is switched

off.

• Check that the workpiece is properly positioned before starting

• Never place your hands close to rotating parts when working with the machine

• Do not remove sharp edged chips by hand, use a hand brush or chip hook

• Use the protection devices and attach them firmly. Never work without protection devices; keep them in

proper working condition. Check that they are operational before starting any work

• Keep the machine and it’s working environment clean at all times. Use sufficient lighting when working

• Secure workpieces with adequate clamping devices when working. Provide an adequate supporting surface

• Do not alter the machine. Do not use for any purposes other than those directed by the manufacturer

• Do not work on the machine if your concentration is reduced as a result of illness, fatigue, drugs, alcohol, or

medication

• Remove keys and other loose parts after assembling or repairing the machine, and before starting it

• All safety and warning labels on the machine must be observed and kept intact and legible

• Keep children and any persons unfamiliar with the machine away from the work area ,machine, and any tools

• The machine may only be used, set up and maintained by persons familiar with and instructed in the relevant

dangers

• During maintenance, commission, and repair, always switch off the machine. Disconnect the plug from the

power supply

• To remove the plug from the power outlet, do not pull the cord. Protect the cord from heat, oil, and sharp

edges

• Ensure that the main switch is in the off position when connecting the machine to the mains in order to

prevent accidental start up

• Wear a well-fitting work suit, goggles, safety shoes and ear protection. Tie long hair back. Do not wear

watches, bracelets, necklaces, rings, or gloves whilst working

• Immediately element any anomalies which may affect safety

• Never leave the machine unattended when running. Stay by it until the tool has come to a complete stop. Pull

the plug to prevent the machine from being switched on accidentally

• Keep the machine dry

• Never use electrical tools and machines near flammable liquids and gases

• Before using the machine, ensure that no components are damaged. Damaged components must be

replaced immediately in order to prevent possible danger

• Do not overload the machine. It is better and safer to work within the indicated performance range. Use the

correct tool, and ensure that they are not blunt or damaged

• To prevent risk of danger and accidents, only use the original spare parts and accessories for your machine

4.1 Residual risk

Even when all safety standards are observed, and the machine is used properly, there still remains some residual risk,

such as:

• Touching rotating pieces or tools

• Breakage of tools

• Damage as a result of components or parts of components flying off at high speed

• Fire hazard in case of insufficient ventilation of the motor

• Contact with live parts

• Damage to hearing when working for long periods without ear protection

All machines involve some residual risk. Any operations should be performed with due care.

5. Transport of the machine

This machine would normally be delivered in a special transport case. Keep it and reuse it.

All bright metal parts are lubricated to protect them from humidity and dirt.

Do not stack the machine. To prevent damage, do not deposit objects on the machine during transportation and

storage.

Protect the machine from moisture and rain. Keep electrical equipment dry.

Take the weight into account when transporting and installing the machine. Make sure that the means of transport and

the base on which the machine will be deposited can bear the load.

6.Unpacking and cleaning

The machine comes pre-assembled. Please check the machine immediately after receiving for any damage incurred

during transportation. If you spot any damage, immediately inform the transport operator and authorised dealer.

6.1 Cleaning the machine

Before transportation, all bright parts of the machine are thoroughly greased with protective wax and grease to avoid

corrosion.

Before commissioning, clean the machine with a suitable environmental-friendly cleaning agent (such as stove

distillate). Do not use any solvents, thinners, or other cleaning agents which might corrode the varnish on the

machine.

Follow the specifications and instructions of the manufacturer of the cleaning agent. Ventilate the area well when

cleaning in order to avoid any health hazards due to fumes.

Once the machine has been cleaned, all bright metal parts must be lightly lubricated. Use a non-corrosive lubricating

oil for this purpose.

Warning: Many cleaning agents are combustible and are highly flammable. Do not smoke when handling cleaning

agents.

Note: Oil, grease, and cleaning agents are pollutants and must be disposed of carefully. Dispose of these agents in

accordance with current legal requirements. Cleaning rags impregnated with oil, grease, and cleaning agents are

flammable. Dispose of these carefully.

7. Extent of supply and accessories

Included with your machine:

• Lathe

• 3 and 4 jaw chucks

• Lathe tools

• Centres

• Chuck guard

• Operating manual

7.1 Extras

We recommend the following for use with this machine:

• Chip tray

• Stand

• 125mm 4 jaw chuck

• Steady rest

• Follow rest

• Face plate

• 10mm lathe tool set

• 12mm lathe tool set

• Collet chuck holder

• 3-16mm collet chuck set

8. Installing the machine

When choosing the workpiece, bear the following points in mind:

• The device must be installed and operated in a dry and well-ventilated area

• Avoid locations near chip or dust generating machines

• Place in a vibration free area, at a distance from stamping machines, planing machines, etc..

• Use a suitable base (bearing capacity and evenness of the floor). Compensate possible unevenness with

suitable padding

• Leave sufficient space for the user

• Provide sufficient lighting

• Ensure a current supply

Ensure that no unauthorised personnel or children are in the danger area of the machine during operation.

The machine base must be conditioned so that no split oil or coolant can penetrate the floor.

8.1.1 Using a substructure

Ensure that the substructure is placed on even ground and that the machine is levelled exactly with a spirit level. If

not, there is danger that the lathe bed may become warped, making the machine unusable.

Attach the machine firmly to the substructure.

8.1.2 Using the machine with the substructure

When using an existing worktable or bench, also check the evenness of the installation surface. Use a spirit level for

levelling, ensure that the machine is firmly attached to the substructure. Only use a base suitable for the machine.

We do not recommend using unattached machines, as this will move during operation.

8.1.3 Installation drawings

9. Power Connection

Note: Connection of the lathe and all other electrical work may only be carried out by an authorised electrician

Before connecting the machine to the mains, make sure that the electrical values of the mains supply are the same as

those for the lathe’s electrical components. Use the wiring diagram for connecting the lathe to the mains supply.

We recommend that you connect the machine separately to other power consuming appliances, using a fused and

lockable connection.

If the turning direction is not correct, change the phase connection order at the terminal or plug.

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