147
The device will not
switch on
Pressure sensor
Fit a different pressure sensor on the controller card.
If the device starts, the old sensor is defective. If no
replacement sensor is available, you can use a multime-
ter to check the resistance on the red and black wires
of the sensor (do not forget to unplug the mains plug).
This should be 1.5-3.5 k
Ω
. Defective sensors typically
fail to detect DC voltage (open).
If the sensor passes all the tests, see pressure regula-
ting button (potentiometer).
Pressure regulator button (poten-
tiometer)
Fit a different potentiometer on the control panel. If the
device starts, the old potentiometer is defective. If no
replacement potentiometer is available, you can unplug
the potentiometer cable (with the device switched off)
from the controller card and check the resistance on the
red and black wires of the potentiometer (do not for-
get to unplug the mains plug). This should be 8-12 k
Ω
.
If the value is higher than this, you must replace the
potentiometer.
If DC voltage is present on the motor brushes, and both
the sensor and the pressure regulating button are wor-
king, replace the pressure regulator unit.
Repairing the pressure regulator
Motor controller card diagnostics
Before performing maintenance work on the controller card, relieve the pressure and unplug the mains plug on the
spraying unit. Read the depressurisation section on page 7 for details.
NOTE:
Keep a new pressure sensor handy for this test.
INSTRUCTIONS:
The spraying device must never build up fluid pressure if no pressure sensor is installed. Keep the ventilation/pressure
relief valve open while using the test pressure sensor.
1. Remove the four screws and the cover.
2. Turn the ON/OFF switch to the ON position.
Содержание Airless LP 40 rigid
Страница 24: ...24 Ersatzteillisten Motor Antrieb...
Страница 26: ...26 Ersatzteillisten Querschnitt Farbstufengeh use...
Страница 56: ...56 Lijsten met vervangende onderdelen Motor aandrijving...
Страница 58: ...58 Doorsnede verfniveaubehuizing...
Страница 88: ...88 Nomenclatures de pi ces de rechange Moteur entra nement...
Страница 90: ...90 Nomenclatures de pi ces de rechange Bo tier nuancement des couleurs transversal...
Страница 120: ...120 Motore Azionamento Elenchi dei pezzi di ricambio...
Страница 122: ...122 Elenchi dei pezzi di ricambio Sezione corpo stadio di colore...
Страница 152: ...152 Spare parts list Motor gearbox...
Страница 154: ...154 Spare parts list Cross section paint stage housing...
Страница 184: ...184 Seznamy n hradn ch d l Motor pohon...
Страница 186: ...186 Seznamy n hradn ch d l Pr ez kryt barevn ho stupn...
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