background image

 

GB - ENGLISH 

Operating Instructions 

 

Dear Customer, 

Many thanks for the confidence you have shown in us with the purchase  of  your new JET-machine. This manual has been 
prepared for the owner and operators of a JET BD-920W  metal lathe  to promote safety during installation, operation and 
maintenance procedures. Please read and understand the information contained in these operating instructions and the 
accompanying documents. To obtain maximum life and efficiency from your machine, and to use the machine safely, read this 
manual thoroughly and follow instructions carefully. 

 

…Table of Contents 

1. Declaration of conformity

 

2. Warranty

 

3. Safety

 

Authorized use 
General safety notes 
Remaining hazards 

4. Machine specifications

 

Technical data 
Noise emission 
Contents of delivery 

5. Transport and start up

 

Transport and installation 
Assembly 
Mains connection 
Starting operation 

6. Machine operation 

Controls 
Chucking 
Tool setup 
Spindle speed selection 
Manual turning 
Turning with auto feed 
Thread cutting 
Drilling operation 

7. Setup and adjustments 

Change gear setup 
Turning between centres 
Taper turning with tailstock 
Taper turning with top slide 
Three jaw universal chuck 
Four jaw independent chuck 
Live centre 
Steady and follow rest 

8. Maintenance and inspection 

Lubrication schedule 
Bearing adjustment 
Cross and top slide adjustment 
Cross slide spindle adjustment 
Top slide spindle adjustment 
Spindle end float adj. 
Halve nut adjustment 
Shear pin replacement 

9. Trouble shooting

 

10. Environmental protection

 

11. Available accessories 

1.  Declaration of conformity 

On our own responsibility we hereby 
declare that this product complies 
with the regulations* listed on page 
2. Designed in consideration with 
the standards**. 

 

2.  Warranty 

The Seller guarantees that the 
supplied product is free from 
material defects and manufacturing 
faults. This warranty does not cover 
any defects which are caused, either 
directly or indirectly, by incorrect 
use, carelessness, accidental 
damage, repair, inadequate 
maintenance or cleaning and normal 
wear and tear. 

Guarantee and/or warranty claims 
must be made within twelve months 
from the date of purchase (date of 
invoice). Any further claims shall be 
excluded. 

This warranty includes all guarantee 
obligations of the Seller and 
replaces all previous declarations 
and agreements concerning 
warranties. 

The warranty period is valid for eight 
hours of daily use. If this is 
exceeded, the warranty period shall 
be reduced in proportion to the 
excess use, but to no less than three 
months. 

Returning rejected goods requires 
the prior express consent of the 
Seller and is at the Buyer’s risk and 
expense. 

Further warranty details can be 
found in the General Terms and 
Conditions (GTC). The GTC can be 
viewed at www.jettools.com or can 
be sent by post upon request. 

The Seller reserves the right to 
make changes to the product and 
accessories at any time. 

 

3.  Safety 

3.1 Authorized use 

This metal lathe is designed for 
turning and drilling machinable 
metal and plastic materials only. 
Machining of other materials is not 
permitted and may be carried out in 
specific cases only after consulting 
with the manufacturer.  

Never cut magnesium- 
high danger to fire! 

The workpiece must allow to safely 
be loaded and clamped. 

The proper use also includes 
compliance with the operating and 
maintenance instructions given in 
this manual. 

The machine must be operated only 
by persons familiar with its operation 
and maintenance and who are 
familiar with its hazards. 

The required minimum age must be 
observed. 

The machine must only be used in a 
technically perfect condition. 

When working on the machine, all 
safety mechanisms and covers must 
be mounted. 

In addition to the safety 
requirements contained in these 
operating instructions and your 
country’s applicable regulations, you 
should observe the generally 
recognized technical rules 
concerning the operation of 
metalworking machines. 

Any other use exceeds 
authorization. 
In the event of unauthorized use of 
the machine, the manufacturer 
renounces all liability and the 
responsibility is transferred 
exclusively to the operator.  

 

 

Summary of Contents for BD-920W

Page 1: ...carelessness accidental damage repair inadequate maintenance or cleaning and normal wear and tear Guarantee and or warranty claims must be made within twelve months from the date of purchase date of i...

Page 2: ...the machine Remove the chuck key and wrenches before machine operation Specifications regarding the maximum or minimum size of the work piece must be observed Do not remove chips and work piece parts...

Page 3: ...e bed make sure the setup surface is absolutely flat and level Regarding change gear setup For packaging reason the change gears 60 and 120 have been installed in reversed order Install them as shown...

Page 4: ...ur way tool post Avoid big tool extensions 6 4 Spindle speeds selection The correct spindle speed depends on the type of machining the cutting diameter the material to be machined and the cutting tool...

Page 5: ...ading process Start the machine at the lowest spindle speed When the tool reaches the end of cut stop the motor and at the same time back the tool out of the part so that it clears the thread Attentio...

Page 6: ...rs may be turned Loosen two nuts 1 Fig 16 and rotate the top slide according to the graduated scale Fig 16 The top slide may be located in two positions on the cross slide 7 5 Three jaw universal chuc...

Page 7: ...l ball on lead screw bracket 8 screw and guides of top slide 9 oil ball on tailstock body 10 oil ball on top of carriage 12 hub of feed lever 13 oil balls on apron front Weekly apply grease to 2 teeth...

Page 8: ...ician Machine vibration Unbalanced work piece Reduce spindle speed Work piece deflection improve chucking length or diameter support on tailstock end Tool deflection reduce tool length Slide backlash...

Page 9: ...rial und Fertigungsfehlern ist Diese Garantie trifft nicht auf jene Defekte zu welche auf direkten oder indirekten nicht fachgerechten Gebrauch Unachtsamkeit Unfallschaden Reparatur mangelhafte Wartun...

Page 10: ...und Drogen an der Maschine Beachten Sie dass auch Medikamente Einfluss auf Ihr Verhalten nehmen k nnen Halten Sie Unbeteiligte insbesondere Kinder vom Gefahrenbereich fern Die laufende Maschine nie u...

Page 11: ...folgen werkstatt bliche Bedingungen sind dabei ausreichend Die Maschine kann sowohl auf einen ebenen und belastungsf higen Tisch als auch auf den Originalunterschrank Zubeh r festgeschraubt werden 5 2...

Page 12: ...t Reitstock oder L netten ab Fig 3 Fig 4 Vermeiden Sie kurze Einspannl ngen A Fig 5 oder das Spannen auf einem kleinen Durchmesser B Fig 5 Sorgen Sie f r eine stirnseitige Anlage des Werkst cks 6 3 Ei...

Page 13: ...ntiefe 0 2mm Vorschub pro Umdrehung 0 04mm Getriebestufe I Beim Schruppen gro er Durchmesser die Spantiefe reduzieren 6 7 Gewindeschneiden Gewinde werden in mehreren Durchg ngen mit einem Gewindeforms...

Page 14: ...t mittels Aufspannscheibe und Mitnehmerbolzen Fig 14 Fig 14 Schmieren Sie die Reitstock K rnerspitze um ein Verreiben zu verhindern 7 3 Konusdrehen mit Reitstock Bis zu einem Seitenwinkel von 5 k nnen...

Page 15: ...emmen Die Sechskantmuttern 1 festziehen W hrend des Laufens die Gleitbacken gut schmieren Fig 20 Laufl nette Die Mitlaufl nette wird auf den L ngsschlitten aufgesetzt und macht so die Bewegung des Dre...

Page 16: ...ie abgebildet wegkurbeln Den Gewindering 1 Fig 27 nachstellen bis die Spindel in der Mutter wieder spielfrei eingreift Fig 27 8 6 Spindellager Nachstellung L sen Sie den Gewindestift 1 Fig 28 Die Mutt...

Page 17: ...hl reduzieren Werkzeugschneide verschlissen Werkzeug sch rfen Maschine dreht konisch Reitstock ist seitlich versetzt Reitstock ausrichten Maschinenbett ist verdreht Aufspannfl chen m ssen eben sein Ke...

Page 18: ...1 Accessoires 1 D claration de conformit Nous d clarons de notre propre responsabilit que ce produit correspond en tout point aux lignes directives d crites la page 2 Lors de la construction les norme...

Page 19: ...Placer la machine sur un sol stable et plat S assurer que le c ble d alimentation ne g ne pas le travail ni ne risque de faire tr bucher l op rateur Retirer toute pi ce encombrante de la zone de trav...

Page 20: ...e mobile Jeu roues de rechange Pointe fixe CM 2 Pointe fixe CM 3 Comparateur pour filetages Plaques de fixation Mandrin 4 mors 180mm Mandrin universel 3 mors 100 mm Jeu de 3 mors de serrage ext rieur...

Page 21: ...du nombre de tours du moyen de serrage n ose jamais tre d pass e La denture des mors de serrage et celle de la spirale doivent toujours tre compl tement engren es Les mors de serrage d passant le dia...

Page 22: ...profondeur de passe et du choix de la qualit de l tat de surface Par exemple Usinage ext rieur d une pi ce en acier C15 20mm bien serr e avec un outil HSS 350 l min Les roues de rechange suivantes son...

Page 23: ...ous enl verez ensuite Fermez et verrouillez la protection pour la courroie 7 2 Tournage entre les pointes Fixez le toc sur la pi ce et serrez la entre les pointes L entrainement est fait par le platea...

Page 24: ...pans 1 Pendant le tournage bien huiler les mors lisses Fig 20 Lunette suivre La lunette suivre est fix e sur le tra nard et effectue le m me mouvement que le burin Elle vite que les pi ces longues et...

Page 25: ...vis tourne nouveau sans jeu dans l crou Fig 26 8 5 R glage de la vis sup rieure D vissez le palier porte vis comme indiqu sur l image R glez la bague filet e 1 Fig 27 jusqu ce que la vis tourne nouve...

Page 26: ...forte R duire la profondeur de passe ou l avancement Outils surchauff s Vitesse de coupe trop haute R duire la vitesse Outil mouss Aiguiser l outil Machine tourne coniquement Contre pointe d plac e la...

Reviews: