STRUCTURE AND FUNCTION | 27
Plug-in coupling (SKS)
Remove the protective cap from the coupling male. Take hold of the coupling female by
the knurled sleeve cover and pull out the protective plug. With one hand take hold of sleeve
cover of the coupling female, with the other grasp the coupling male (black) by the hex nut,
and press the sleeve cover slightly against the coupling male until the ball bearings engage.
Twisting the male coupling slightly when pressing togehter eases the coupling process.
Grasp the coupling male (black) by the hex nut with one hand and with the other take
hold of the sleeve cover and draw it back. The disconnecting will cause a few drops of hydraulic
oil to escape. Plug in the protective caps immediately.
CAUTION !
When coupling SKS connections the power unit operating lever must be in
the „0“ position.
DANGER due to incompletely coupled SKS return line!
If the return line (T) on the SKS coupling system is not connected correctly
the tool can be moved independently until the safety valve responds!
Therefore:
Always check SKS couplings for correct locking, do not hold hands or other
parts of the body within the working range of the moving components.
Ensure that the couplings, especially the return line (T), are locked correctly!
NOTE !
A pressure relief connector is fitted to the hydraulic power units and
the hand pump, with which a few drops of oil can be discharged from
the hoses. This permits re-coupling following pressure increases in
de-coupled equipment. In this case simply insert the pressure relief
connector into the coupling sleeve and turn the knurled screw to the
right until oil leaks out.
