Nilfisk FOOD MH42 Mode D'emploi page 42

6. System preparation
6.1. Start up of new system
To ensure smooth start-up of the new system, follow
these guidelines.
6.2. Bleeding guidelines
6.2.1. Bleeding the pipe system
• Close water and air supply after use.
• Leaving the air supply open may allow air to enter
the water pipe.
• Regular bleeding may be necessary after pro
longed shutdowns.
6.2.2. Bleeding the pump
• Start the pump to force any remaining air pockets
to the top of the pump.
• Stop the pump.
• Loosen the relief plug 1-2 turns again and bleed
until only water flows.
• Tighten the relief plug.
• Never loosen the relief plug while the pump is in
operation as this may damage the gasket.
A
DETAIL A
• The mainstation is now ready for use.
6.3. Adjustments
6.3.1. Instruction and setup
Refer to the user guide for general machine operation
instructions.
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6.3.2. Adjustment of air (MH42 / MP42)
To adjust air, remove the unit cover and set air pres-
sure on the reduction valve for desired foam quality.
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When setting the regulator, carefully
pull out the knob and turn it clockwise
for pressure increase and counter clock
wise for pressure decrease.
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