chucks and spindle adaptor:
 

Hope ~ Vacuum chuck system

Fits all m33 x 3.5, 1 1/4 x 8 tpi, 1 1/2 x 6 tpi, 
1" x 8tpi  lathes with a 10mm or bigger, hole through the head stock!


Each kit now includes spindle adaptor, 2 x chucks with one thread adaptor, vacuum gauge, junction box, air filter and all connections  needed.
Pumps cost £179 including vat and delivery direct Available form:
Autokool
or
Ebay
£345 delivered.(UK)
 
I now do not sell the pump and allow customers to buy it direct.  This is a saving of £51 to the customer!
Chucks , spindle adaptor and Valve can all be purchased seperatly. Please e.mail.
 This will be in use at the Kent Show  by Mick Hanbury 
Instructions:
1.

Screw the junction box near the rear of your lathe in reach of the black nylon tube attached to the spindle adaptor.  Use the wall spacers provided .


2.
Fill the vacuum pump via the green cap using the vacuum pump oil provided, to the top up lines on the pump.  Do not over fill and top up as necessary.  This could be a few drops per 2 months depending on usage. 

More info out the pump and oil is provided in a booklet with the pump itself.

 
3. 
Unscrew the top black cap and take off.  Leave the side black cap on and tight.  Then use the PTFE tape provided to wrap a small amount around the threads of the top inlet.

 

4.

Screw the quick release adaptor onto the threaded inlet that you have just wrapped PTFE tape around and tighten with a spanner. 

Connect the thin nylon tube by pushing into the quick release adaptor.  The other end fits into the left hand side of the gauge (filter).  Push the clear braided hose onto the green exhaust and pinch tighten the clip to hold the braided hose in place.( do not over tighten this clip as it can crush the green plastic exhaust. Tighten only enough to hold the braided hose) Then vent the clear braided hose to an outdoor source.
 
5.

Place spindle adaptor through the head stock.  Place rubber washer over  thread of spindle adaptor, then screw on the small tapered brass nut.
 DO NOT  OVER TIGHTEN.  PINCH TIGHT IS SUFFICIENT.



6
Carefully screw in the chuck insert/exert into back of the chuck. Use a spanner to pinch tight.  The chuck can then be screwed onto the lathe. Use a spanner to take of the insert/exert on and off the lathe . Use the 8mm Tommy bar provided to change the inset/exert between chucks.

  
7.

Push connect the black nylon tubes into the junction box.  The spindle adaptor tube connects to the right hand side of the junction box and the vacuum pump tube connects to the left hand side of the junction box. PUSH THE BLACK FLANGES ON THE CONNECTORS THEMSELVES TO CONNECT THE BLACK NYLON TUBE IN AND OUT.

 
8.

Place the reversed bowl onto the chuck using the pre-marked centre point from the tailstock.  Keep some pressure against the chuck then switch the vacuum pump on.  The bleed valve is open in the pointing down position.  Close valve.  The gauge will then move to approx –20 on the dial. This indicates that you have vacuum.  For thin bowls etc, the amount of vacuum can be adjusted by opening the valve by small amounts.  The vacuum range is between –5 and  approx –26.  End grain work and very porous timbers will not vacuum in the higher range.  -30 is absolute vacuum so –20 to –26 approx which is what this system produces, provides a very good vacuum!

 

Once the vacuum pump has reached your required vacuum, take the tail stock away.  Test by hand first to see that the vacuum is holding.  Also look at the dial again to be sure it has reached vacuum.  ( approx –20 to –26 for fully on)  You can now turn using the vacuum pump.  Large heavy cuts or dig ins may cause your work to come off the lathe, so care must always be taken when cutting.

 · Ensure the lathe has stopped fully before turning off the vacuum pump.

 · Use the tail stock to hold the work piece if stopping half way though finishing your work.

 · max RPM is 1500.

 · Recommended duty  cycle : 10 minutes rest per 30 minutes of continuous use.  Max use per day 8 hours.

 

 

 

 
 
 
  Site Map