Long Stops; Start; Stop; Adjustment Of Detergent - Nilfisk FOOD Hybrid MU421 Instrucciones De Uso

The main station is now ready for operation.
Press "I" on the control panel.
7.2.1.

Long Stops

If long productions stops are planned (more than 6
months) and the pump is emptied of water, it is rec-
ommended that the pump be secured as follows:
1. Remove the coupling safety guard.
2. Spray a couple of drops of silicone oil onto
the axle between the top section and the coupling.
Carefully follow the instructions given in the manual
provided by the pump supplier. Never store or install
the equipment where the ambient temperature is
above 40°C or gets at or below the freezing point.
7.2.2.

Start

1. Make sure that the water and air supply to the
unit is open. For air see layout drawing. In case
of central chemical supply this must be activated
too.
2. Select requested function. Use the unit according
to the "User Guide".
18
7.2.3.

Stop

1. Close the water supply (see drawing 110003601).
2. Close the air supply (see drawing 110003601).
3. Deactivate chemical supply by pulling up the suc-
tion hose or removing the userpack.
Due to the following it is very important
to close water, air and chemical suplly
when the unit not in use.
7.2.4.

Adjustment of detergent

Remove cover from the unit.
Adjustment of detergent can be done by means of a
110003606
limiting nozzle.
The limiting nozzle is placed in the suction nipple of
the non-retur valve (110003603) and can be re-
placed with a smaller or larger nozzle depending on
the concentration needed, please also see table for
guidelines.
All tests have been made with Topax 12
Nozzle size in mm
0,4
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,5
7.2.5.

Adjustment of air

Remove the cover from the unit.
Adjust the air pressure on the reduction valve until an
appropriate foam quality is reached.
• If the air supply is open when the unit
is not in use - air might seep into the
water pipe - which means that the
system has to be bled again.
Concentration by 20 Bar in %
0,75
1,15
1,65
2,20
2,90
3,60
4,40
5,3
9,4
When setting the regulator, carefully
pull up the knob and turn it clockwise
for pressure increase and counter clock
wise for pressure decrease.