Fresmak ARNOLD-TWIN Manual De Instrucciones página 7

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MORDAZAS DE ALTA PRESION
4. Remove the spindle (4453) and the cast nut (4102) through the part opposite the clamp (4465).
5. Release the adapter. To this end, hold the main spindle (4461) using a spanner, then introduce the
knob in the hexagon and turn anti-clockwise to release the adapter.
6. Release the four screws (4051) of the clamp (4465).
7. Release the screw (202).
8. Hold the spindle (4461) in place with a normal spanner, and use a DIN 1804 articulated spanner to
release the lining and the clamp. Next gently pull out the spindle (4461) to remove the remaining
spindle from the body of the vise. Then simply untwist the nut (4107).
E E.- MAINTENANCE OF THE OLEODYNAMIC SPINDLE
This spindle does not require any regular maintenance, simply change the seals over the years. Only
in this case should we dismantle the spindle. In other cases, consult your supplier before dismantling.
Dismantle the clamp casing.
1. Release the adapter assembly. To this end, introduce the knob in its hexagon and, holding the
casing in a vise or similar, turn the knob anti-clockwise.
2. Now clamp the vise. Release the screw (215-090 or 004-125) situated on the upper cap (4020).
Turn the rear cover using a DIN 1804 articulated wrench.
3. Separate the three pieces (cover, clamp, casing).
4. Change the springs and O-rings if necessary.
Take down the cylinder-spindle equipment. Model 090.
1. Release the screw (215) located on the cylinder (4404).
2. Fasten the spindle (4407) in a vise.
3. Twist open the aforementioned cylinder.
4. Remove the cover (4418) to access the small seal (011).
5. Now remove the plastic bushing (4423) and the elastic pin (1415). Remove the main right-hand
spindle (4401) to access the other two seals.
Take down the cylinder-spindle equipment. Model 125.
1. Release the screw (215) located on the cylinder (4456).
2. Fasten the spindle (4461) in a vise.
3. Twist open the aforementioned cylinder.
4. Remove the piston (4454) from the cylinder and, removing the piston cover (4458), access the
small seal and the other seals.
The movement of the vise jaws is
rather cumbersome.
Imprecise clamping.
The working piece raises up
excessively.
Excessive raising of the work part.
Loss of oil to the exterior
Failures
The clamp is not correctly aligned.
- Piece too high.
- Elastic piece.
- Piece not squared up.
- Piece rough or chipped.
Incorrect support.
Support not OK.
- The adapter has become loose
and the oil escapes to the exterior.
- The seals have become oval-
shaped due to the rotation of the
adapter.
Causes
Unscrew the end clamp screws and fasten again
whilst moving the jaws backwards and forwards.
- Use appropriate jaws.
- Use special jaws.
Use descending anchor jaws.
Use descending jaws.
- Change the washer which joins the adapter to
the clamp and retighten.
- Change the O-rings and the support rings.
6
Solutions