Operating instructions

Preventive Maintenance Manual

With backpressure control

Figure 31 - Hydraulic System with backpressure control

Note:

An additional output (pneumatic valve) is equipped for better force accuracy

control. After piston down the “piston up low/vent” valve gets activated and

pressurizes the piston up at 0,2bar. This pressure compensates the friction of

the hydraulic gaskets and allows better force-control in the low range.

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