30 - Solution System 57Service Manual – SC250, Scrubtec 334, MA 30
Water Pump Voltage and Cleaning Check (continues)
4. On the main machine controller , identify the two output water pump faston connections (C).
5. With a digital multimenter (D) set to AC input (E), verify that on the output water pump (C) is current
an alternating voltage of ~ 14 ÷ 16 V with activated water pump.
6. If the water pump output is without voltage, check in the order:
a. Water pump wiring.
b. Water pump efciency (Clean/unlock or replace).
c. Main machine controller efciency.
Figure 7
C
D
E
D
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