1 Introduction 1.2 General repair instructions 38241
Always fit adapter sleeve bearings in accordance with the conical inner ring. Before insertion, clean the adapter sleeve and shaft and check the free movement of the adapter sleeve nut, so that the adapter sleeve does not turn on the shaft during tightening. Tighten: Initially, tighten the adapter sleeve nut until the adapter sleeve is free from play and has a slight tension. Now tighten the nut by around 90° and then turn again until the next groove fits the safety tongue. Secure the adapter sleeve nut with the safety tongue. Release: Initially loosen the released adapter sleeve nut by just a few rotations. The thread must still support fully. Release the adapter sleeve with a stroke pipe and forceful impact. 64364
1.2.13 Ferrule fittings on hydraulic lines For all pre-assemblies and ferrule screw unions supplied pre-assembled from the factory, final assembly is carried out in the associated, well oiled screw unions with a 1/2 rotation of the union nut beyond the point where an increase in force is clearly perceptible. Pre-assembly: – Saw the pipe off at right angles. Do not use a pipe cutter! This cuts the wall of the pipe at an angle, which leads to the formation of burrs inside and out. – Gently deburr the end of the pipe inside and out. Do not chamfer! – Clean the end of the pipe. For elbows, the straight end of the pipe to the start of the bend radius must be at least twice the height of the union nut. – Push the union nut and ferrule onto the pipe. – Push the pipe against the stop position in the union and tighten the union nut, until the ferrule touches the pipe. The pipe must not turn simultaneously. This point can be perceived by the increasing rise in force. – Tighten the union nut by 1/2 a rotation beyond the pressure point. – Check the incision at the cutting edge. A visibly raised collar must fill the space in front of the ferrule face side. The ferrule must turn, but not be moved axially. Final assembly: – Insert the pre-assembled pipe in the well oiled union. – Tighten the union nut until there is a perceptible increase in force.
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