Power operated collet chucks KZF/KZZF - RÖHM - #8

Die Spannkraft muss vor Neubeginn einer Serienarbeit und zwischen den Wartungsintervallen mit einer Spannkraftmesseinrichtung kontrolliert werden. "Nur eine regelmäßige Kontrolle gewährleistet eine optimale Sicherheit". Es ist vorteilhaft, nach spätestens 500 Spannhüben mehrmals bis zu seinen Endstellun­gen durchzufahren. (Weggedrücktes Schmiermittel wird dadurch wieder an die Druckflächen herangeführt. Die Spannkraft bleibt somit für längere Zeit erhalten).

Before the clamping medium can be used again after a collision, it must be subjected to a specialist and qualified crack test.

Ensure that ONLY original RÖHM spare parts are used. If this directive is not adhered to, all responsibili­ties of the manufacturer are negated. So as to be able to reorder spare parts or individual parts with absolute certainty and without any problems, it is necessary to note the 6-digit Id. No. engraved on the component and / or assembly. In many cases it may be sufficient ifthe item number according to the assembl drawing or parts list and, possibly, a detailed description ofthe component can be provided. III. Environmental hazards

Different lubricating, cooling and other media are requi­red when operating a clamping device. These are gene­rally applied to the clamping device via the distributor housing. The most frequently encountered ofsuch media are hydraulic oil, lubricating oil/grease and coolant. Careful attention must be paid to these substances when handling the clamping medium to prevent them penetra­ting the soil or contaminating water. Danger! Environ­mental hazard! This applies particularly during installa­tion / removal, as pipes, piston chambers and / or oil draining plugs may still contain some residual quantities, and for porous, defective or wrongly fitted seals or lubricants which can escape or be ejected from the clamping device during operation (due to design reasons).

Thematerial tobeclampedshouldpossess arigidity suitable for the clamping force involved and should only be minimally compressible if secure workpiece clamping under the machining forces which occur is to be ensured. Non-metallic material (e.g. plastic, rubber, etc.) may only be clamped and machined with the express written permission of the manufacturer!

Inferior replacements or inadequate fixing of screws which are being changed or become loose can lead to risks of both injury to personnel and material damage. It is therefore imperative that, unless otherwise expressly specified, only such torque as expressly recommended by the screw manufacturer and suita ble for the screw quality be applied when tightening fixing screws.The following torque table applies for the common sizes M5 - M24 and qualities 8.8, 10.9 and 12.9:

Screw quality 12.9 should be selected in cases of doubt when replacing original screws. 12.9 quality should be selected in all cases involving fixing screws for clamping inserts, top jaws, fixed stops, cylinder covers and similar elements. All fixing screws which, due to the purpose for which they are intended, are loosened frequently and must then be tightened again (e.g. during conversion work) should have their threads and the bearing surface of their heads coated with a lubricating medium every six months (grease paste). Even securely tightened screws can become loose under adverse outside conditions such as, for instance, vibrations. In order to prevent this happening, all safety--related screws (clamping fixture fastening screws, clamping set fastening screws etc.) must be checked and, if necessary, tightened at regular intervals.

Reliability of the clamping device can only be ensured if ser vice regulations in the operating instructions are followed exactly. The following should be noted in particular:

-- The lubricant recommended in the operating instructions should be used for lubricating. (Unsuitable lubricant can reduce the clamping force by more than 50%).

-- All surfaces requiring lubrication should be reachable where manual lubrication is involved. (Tight component fits mean that high application pressure is required. A high--pressure grease gun should therefore be used if necessary).

-- To ensure suitable grease distribution, move the clamping piston several times over its full range up to the end positions, grease again and then check the clamping force. Clampingforceshouldbecheckedwithaclampingforce measuring instrument prior to recommencing serial work and between service intervals.

"Regular checking is the only guarantee for optimum safety". It is advantageous to run on several times the end positions after 500 clamping operations at the latest. (Lubricant which has been pressed out is reapplied to the pressure surfaces as a result. The clamping force is maintained for a longer period of time as a consequence).

These emerging substances should therefore be collec­ted and reused (or disposed of in accordance with applicable regulations)! IV. Technical safety requirements relating to force-actuated clamping devices 1.The machine spindle should only be started after clamping pressure has built up in the clamping cylinder and clamping has been achieved within the permitted working range.

2.Clamping should only be relieved when the machine spindle is stationary. An exception is permitted if loading/ unloading is intended during the entire procedure and if the design of the distributor/cylinder permits this. 3. A signal should shut down the machine spindle immediately if the clamping energy fails. 4.The workpiece should remain securely clamped until the spindle is stationary in the event of the clamping energy failing.

5.An alteration of the current position should not be possible in the event of an electric power failure and re--activation.

Please check that bajonet catch is locked after tool exchange