Hardi LZ Series, Инструкция

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31
Pressure
dropping.
Pressure
increasing
Formation of
foam.
Liquid leaks
from bottom of
pump.
Operating unit
EC operating
unit not func-
tioning .
Nozzles worn.
Tank is airtight.
Sucking air towards
end of tank load.
Pressure filters
beginning to clog.
Agitation nozzles
clogged.
Air is being sucked
into system.
Excessive liquid
agitation.
Damaged diaphragm.
Blown fuse(s).
Wrong polarity.
Valves not closing
properly.
No power.
Check flow rate and replace nozzles
if it exceeds 10%.
Check vent is clear.
Excessive agitation, turn off.
Returns inside tank need relocation.
Clean all filters.
Check by turning agitation off/on.
Check tightness / gaskets / O-rings
of all fittings on suction side.
Turn agitation off.
Reduce pump r/min.
Check safety valve for Self-Cleaning
Filter is tight.
Ensure returns inside tank are
present.
Use foam damping additive.
Replace. See Changing of valves
and diaphragms.
Check mechanical function of
microswitches. Use cleaning/
lubricating agent if the switch does
not operate freely.
Check motor. 450-500 milli-Amperes
max. Change motor, if over.
Brown - pos. (+). Blue - neg. (-).
Check valve seals for obstructions.
Check microswitch plate position.
Loosen screws holding plate
a
1 /
2
turn.
Wrong polarity. Check that brown is
pos. (+), Blue is neg. (-).
Check print plate for dry solders or
loose connections.
Check fuse holders are tight around
fuse.