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As a result of continuous improvement and further development of our designs, the information and illustrations in this brochure are not binding. 

The specifications and installation lengths of the machine manufacturer must be observed. All specifications are in mm. Errors and omissions excepted.

Commissioning 

ALLIGATOR

Change

 intermediate sleeve

Remove 

chuck

• 

Move the clamping claw forward to open the chuck. 

Remove the blank.

• 

Move the clamping claw forward to open the chuck. 

Remove the blank.

• 

Screw the new intermediate sleeve into the chuck as 

described on page 5.

• 

Loosen the four mounting screws. 

• 

Remove the chuck from the machine and pack it in 

the original bag.   

Pay attention to corrosion protection.

• 

Turn the blue locking ring from CLOSE to OPEN and 

turn out the intermediate sleeve.

• 

Turn the blue locking ring from CLOSE to OPEN and 

turn out the intermediate sleeve.

• 

Clamp a new adjustment pin and check the runout 

error with the dial gauge.

Step 1:

Step 1:

Step 3:

Step 3:

Step 2:

Step 2:

Step 4:

Note:

 When you remove 

the chuck with intermediate 

sleeve

, the blank must be in the intermediate sleeve.

1. 

Align the chuck with an alignment hammer (made of 

plastic or copper) by tapping lightly on the alignment 

surface. 

2. 

After achieving the desired concentricity, tighten the 

mounting screws crosswise with 12 Nm. 

3. 

Done, now you can start grinding.

Step 6:

Adjustment

Use precision dial gauges when adjusting.

Pay attention to the quality of the setting pin.

Setting 

concentricity and repeatability

Please take the time to adjust the concentricity. The more accurately the chuck is set, the more accurately it will 

behave.

Alignment surface

ATTENTION: 

Do not knock on the blue locking ring. To 

ensure proper functioning, disassemble and clean the 

chuck once a month.

Summary of Contents for ALLIGATOR

Page 1: ...Assembly instructions Instruction manual ALLIGATOR Fully automatic hydraulic expansion precision clamping system grinding deserves SOLUTIONS ...

Page 2: ...nding The specifications and installation lengths of the machine manufacturer must be observed All specifications are in mm Errors and omissions excepted GDS ALLIGATOR interference contour 69 95 For information on intermediate sleeves see page 8 49 8 61 65 102 17 5 19 9 35 8 38 2 74 25 28 53 9 Machine spindle ALLIGATOR interference contour ...

Page 3: ...3 Commissioning ALLIGATOR Mounting screw Intermediate Sleeve Adjustment pin Dial gauge For this and other user guides scan this QR code Or visit our website at gds praezision de gebrauchsanleitungen ...

Page 4: ...3 Mount chuck 1 Clean all contact surfaces of the chuck 2 Make sure that the face of the machine interface is level and clean 3 The ALLIGATOR chuck should be at ambient tempe rature 1 Turn the blue ring to OPEN Fig 1 Step 4 Preparation for intermediate sleeve View blue ring open Fig 1 1 Move the machine control to the front 2 Screw the clamping claw into the machine spindle as far as it will go th...

Page 5: ...90 2 Now push the intermediate sleeve into the chuck until you feel a stop 3 Now turn the intermediate sleeve clockwise until the groove of the intermediate sleeve engages in the bayonet insert 4 Then turn the intermediate sleeve counterclockwise to the stop It should now no longer be possible to pull the intermediate sleeve out to the front 5 Insert the setting pin into the intermediate sleeve an...

Page 6: ...ediate sleeve Turn the blue locking ring from CLOSE to OPEN and turn out the intermediate sleeve Clamp a new adjustment pin and check the runout error with the dial gauge Step 1 Step 1 Step 3 Step 3 Step 2 Step 2 Step 4 Note When you remove the chuck with intermediate sleeve the blank must be in the intermediate sleeve 1 Align the chuck with an alignment hammer made of plastic or copper by tapping...

Page 7: ...the scope of their technical data This product is intended for industrial use Intended use includes compliance with all the information in this manual Flawless function as well as warranty claims can only be guaranteed with original GDS acces sories GDS ALLIGATOR Safety Instructions GDS ALLIGATOR error causes and solutions Check the following points Check clamping pressure Check blank Contaminatio...

Page 8: ...4 11 350112412 Intermediate sleeve BJ ø20 x 64 12 350112413 Intermediate sleeve BJ ø20 x 64 13 350112414 Intermediate sleeve BJ ø20 x 64 14 350112415 Intermediate sleeve BJ ø20 x 64 15 350112416 Intermediate sleeve BJ ø20 x 64 16 350112417 Intermediate sleeve BJ ø20 x 64 17 250001590 Mounting wrench D20 250001638 Bayonet insert Reinecker Item No 400002006 ANCA Item No 400002002 ISOG Item No 400002...

Page 9: ...GDS Präzisionszerspanungs GmbH Endelbergstrasse 8 D 72131 Ofterdingen Telefon 49 0 74 73 27 26 72 Telefax 49 0 74 73 27 26 49 Email sales gds praezision de Web www gds praezision de ...

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