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Having  unpacked  your  machine  and  its  accessories,  please  check  the  contents  against  the 
equipment list “What’s in the box”, if there are any discrepancies, please contact us using the 
procedures laid down in the catalogue. Please dispose of the packaging responsibility, much 
of  the  material  is  bio-degradable.  The  machine  and  its  accessories  will  arrive  coated  with 
heavy  corrosion  preventative  grease.  This  will  need  to  be  cleaned  from  the  machine,  its 
components and accessories prior to its being set up and commissioned. Use coal oil, paraffin 
or a proprietary degreaser to remove the barrier grease. Be warned, it will stain if you splash it 
on clothing etc., wear overalls et al., rubber gloves are also a good idea, as is eye protection if 
your  cleaning  process  tends  to  be  a  little  bit  enthusiastic.  After  cleaning,  lightly  coat  the 
machine with a thin layer of light machine oil. N.B if you used paraffin / kerosene make sure 
you apply this thin film sooner rather than lather 
 
Please read the instruction Manual prior to using your new machine; as well as the installation 
procedure, there are daily and periodic maintenance recommendations to help you keep your 
machine  on  top  line  and  prolong  its  life.  Keep  this  instruction  Manual  readily  accessible  for 
any other who may also be required to use the machine. 
The BV20 required to be mounted on a rigid bed, this is to ensure stability of the machine and 
to  attenuate  any  vibration  that  is  generated  when  the  machine  is  running,  (especially  with 
eccentric work mounted in the chuck). 
 
The bed should be flat and set level in both planes, and at a height that enables comfortable 
operation of the machine. It is not necessary to anchor the bed through to the floor, but it must 
be  stable  enough  to  remain  immovable  during  any  normal  forceful  operations  (especially 
tightening) carried out whilst operating your lathe. 
 
If  you  are  preparing  your  own  bed  for  the  machine,  it  should  be  at  least  870mm  long  by 
320mm wide, you will need to drill two 14mm holes to allow for bolt fixing. Set out the centers 
of the holes as follows

sizes are minimum excepting distance between centers). 

 
From the left side of the bed (Headstock side) 170mm,150mm from the front edge of the bed. 
Distance between centers 650mm; second hole again 150mmfrom front edge. 
Bolt the lathe to the bed using M12 nuts, bolts and washers. 
Once  the  lathe  is  mounted,  remove  the  headstock  cover  plate  and  fill  the  headstock  with 
SAE20 oil to a level slightly above the sight glass. Do not overfill. The gearbox does not have 
oil sealed bearing fitted throughout, and if you overfill oil will leak out. 
The machine was fully greased and oiled before leaving the factory,  but it would certainly be 
prudent for you to check and re-oil all the lubrication points and lube all the beds / slides etc., 
before start up. Refer to the lubrication chart later in this manual. 
Check  the  tension  of  the  drive  belt.  If  the  belt  is  too  slack,  tighten  by  adjusting  the  motor 
mounting plate, ensuring that you maintain co-linearity of the two pulleys. 
Although the machine has been thoroughly tested at the factory, it is recommended that you 
carry out a “running in” procedure to check for correct gear meshing, vibration, etc., ensure 
the  lathe  is  running  “forward”  (i.e.  the  spindle  is  turning  towards  you).  Select  the  lowest 
spindle  speed  i.e.  120rpm,  and  run  for  approximately  20minutes,  check  for  vibration, 
excessive noise, etc. After the 20min period,  increase the speed one step at a time and run 
for  approximately  5  minutes  in  each  gear.  Stop  the  machine  before  changing  gear.  If 
everything  appears  satisfactory,  reduce  the  speed  to  one  of  the  lower  registers;  manually 
drive the saddle back towards the tailstock, check the saddle feed engages positively; engage 
the  saddle  feed  and  drive  the  saddle  toward  the  headstock,  checking  for  smoothness  of 
movement,  etc.  Engage  and  disengage  the  saddle  several  times  during  its  travel  and  check 
that its travel pick up is smooth. If everything appears to be satisfactory, move the saddle to a 
position about mid travel, MAKE SURE THE SPINDLE IS STOPPED, switch the machine into 
reverse and check the machine functions equally well whilst running in reverse. 

 

 

Assembly Instructions 

Summary of Contents for BL200L

Page 1: ...N Index of Contents BENCH LATHE BL200L BV20L OPERATION MANUAL ...

Page 2: ...utions These machines are supplied with a mould 13 Arnp Plug and 3 core power cable Before using the machine inspect the cable and the plug to make sure that neither are damaged If any damage is visible have the machine inspected repaired by a suitably qualified person If it is necessary to replace the plug it is preferable to use an unbreakable type that will resist damage Only use a 13 Arnp If e...

Page 3: ...holes to allow for bolt fixing Set out the centers of the holes as follows sizes are minimum excepting distance between centers From the left side of the bed Headstock side 170mm 150mm from the front edge of the bed Distance between centers 650mm second hole again 150mmfrom front edge Bolt the lathe to the bed using M12 nuts bolts and washers Once the lathe is mounted remove the headstock cover pl...

Page 4: ... by the work piece it is horizontal to but not necessarily parallel with the lathe bed along its length Compound Axis This is the axis described by the compound slide when it is being operated independently of the traverse slide and the saddle Please take some time to identify the various parts of your machine so that you are familiar with the terminology we will use to enable you to set up and op...

Page 5: ...oling centers drill chuck reamers etc the barrel has a travel of 50mm this travel allows the mounted tool or centre to be brought into controlled contact with the work piece Mounting feet Shaped in the casting of the lathe bed the two feet have 14mm slots cut into them to enable the fitting of two 12mm bolts to effect the rigid fastening of lathe onto it s stand A work bench Lathe bed V rail and f...

Page 6: ... slide also lock the compound slide along its selected axis or 45 degrees from the main axis The compound slide fits over this vee slide mount the accuracy of the fit is maintained by the gybe strips set in the front edge of the compound slide There is a scale set on the front of the circular base to enable the angle set on the compound slide to be measured Compound slide control handle A U handle...

Page 7: ...t This chart indicates the necessary gears and their positions to enable the wide range of metric imperial module and diameter threads to be cut and the different feed rate to be achieved The feed speed is quoted as a linear distance along the Main Axis per revolution of the leadscrew Reversing switch Rocker switch set under a protective cover to prevent inadvertent operation changing the position...

Page 8: ...king handle Compound slide compound slide control Saddle control Traverse slide control Auto feed lever Traverse slide Fig 4 Tailstock barrel lock Tailstock barrel Tailstock drive handle Tailstock clamping Tailstock offset screw Machine Illustration and key parts description ...

Page 9: ...ecured to the top of the headstock gearbox by four cap head bolts Unscrew the bolts and remove the cover to inspect the gearbox or replace or top up the oil There is no gasket beneath the cover plate so ensure the mating surfaces are clean before replacing the cover 18T reversing The 18T reverse tumbler gear when fitted enables the rotation of the leadscrew to be reversed For left hand threads as ...

Page 10: ...10 ...

Page 11: ...11 Fig 8 Fig 9 Headstock cover plate Oil sight glass Oil drain plug Door for change gear box Fig 10 Machine Illustration and key parts description Door micro switch ...

Page 12: ...ides to spread the oil to all surfaces both hidden and visible 4 Spray up under the rack cover to lubricate the rack G 5 Apply oil to the change gears and their axle mountings H Daily Pre use 1 Clean all swarf and chips away from the machine bed slide surfaces and the tool post 2 Exercise the slide and ensure no swarf etc is lodged in the drive shaft tunnels 3 If you have been using suds make sure...

Page 13: ...13 D H E G A C F Oil Lubrication Identification and Description of the parts of the BV20 BL Lathe B ...

Page 14: ...14 ...

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