Adjustment Of The Controls - Hardi LZ Series Instruction Book

4 restrictors are supplied. Use the green one (largest orifice A) first.
The hose N is unscrewed at the Self-Cleaning Filter,
the restrictor is put in the hose and the hose is
mounted again.
If the required working pressure cannot be obtained,
the restrictor is too large. Choose a smaller
restrictor.
Start with the black one, then the white and finally
the red one.
When cleaning the filter remove hose N and the
hose at the safety valve, and check there are no
residues.
Standard filter size is 80 mesh. Sizes of 50 and 100 mesh are available
and can be changed by opening the filter top. Check the O-rings before
reassembling the filter and replace if damaged.

Adjustment of the controls

4
EC operating unit
1. Adjust screw for pressure equalization
2. On/off valve
3. Pressure control valve
4. Distribution valve
5. Pressure agitation valve
2
3
11