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REASSEMBLY 

 

 

 

STEP 7

 

Place the rear bearing (50106B) into hole #2 of the work block, with the 
shielded side facing upwards, towards the ram of the press.  Press the spindle/ 
chuck (with the chuck nut in place) through the bearing. 
 

 
 
 

STEP 8

 

Place the rear half of the impeller over hole #4 of the work block, with the teeth 
facing down, closest to the work block.  Position the partially assembled turbine 
squarely over the impeller and using the ram of the press, push it into the 
impeller until the bearing and impeller are snug together. 

Note: New style Lares have a One-Piece impeller and a front loading spring. 

 

 

STEP 9

 

Position the front half of the impeller over hole #4 of the work block, with the 
teeth facing upwards, closest to the ram of the press.  Position the partially 
assembled turbine squarely over the impeller and using the ram of the press, 
push it into the impeller, until the teeth on both impellers make contact.  Note: it 
is not necessary to align the impeller teeth with each other.  It will still work 

fine if they are offset. 

 

 

STEP 10

 

Place the front bearing into hole #2 of the work block, this time, with the 
shielded side facing down, into the work block, away from the ram of the press.  
Position the partially assembled turbine squarely over the impeller and using the 
ram of the press, push it into the impeller until the bearing and impeller are snug 

together.  The turbine is now fully assembled. 

 
 

 

STEP 11

 

Reinsert new o-rings (50110) into the head and back cap.  Slip the back cap 
onto the rear bearing on the turbine assembly.  Next, insert the turbine into the 
head of the handpiece, as seen in the photo to the left.  Carefully thread the back 
cap into the head, twisting in a clockwise direction.   Use the Lares back cap 
wrench to tighten the back cap snuggly. 

 
 
 
 

 

Summary of Contents for 330E – JC

Page 1: ...w checking that it inserts smoothly and tightens securely Twist the bur manually to feel how smoothly it turns Attach it to your air hose and run the handpiece if you can Check that air pressure is at 38 p s i Listen for the appropriate pitch at full speed and for a smooth rundown Check the water spray it should be a fine mist Attempt to cut a shell to test the torque Disassemble the handpiece fol...

Page 2: ...the work block Place the Lares disassembly tool 00024L1 squarely into the spindle and press it through and off the bearings and impeller STEP 6 Set the old bearings and o rings aside Clear any debris or water deposits from the water line using a wire reamer left Place all the parts into the ultrasonic cleaner until they are clean Get new parts from inventory Always remember to thoroughly dry every...

Page 3: ...bine squarely over the impeller and using the ram of the press push it into the impeller until the teeth on both impellers make contact Note it is not necessary to align the impeller teeth with each other It will still work fine if they are offset STEP 10 Place the front bearing into hole 2 of the work block this time with the shielded side facing down into the work block away from the ram of the ...

Page 4: ... 38 p s i for about 30 seconds It should start to wind up to full speed It will whine when it is at full power When testing the handpiece flip the water on to make sure the water lines are clear Always test for torque or cutting power Use a seashell for testing the handpiece A piece of plastic does not work it melts When testing for torque a Lares 330E will stop at about 6oz to 8oz of pressure If ...

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