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5.4 MIXER FUNCTION DIAGNOSTICS
5.4.1 WATER
IMPORTANT!
The water system has two modes on all Commander mixers. One is automatic and one is manual. In automatic
mode the water output flow (green bar) is controlled by the computer to match the set-point (red bar) target.
In manual mode the water is controlled solely by the operator and can be done by changing the pump speed
manually on the display or by fine tuning using the outlet ball valve.
Water is flowing into mix bowl:
If the Commander system is showing an auto water alarm,
then this is an indication that the output flow is not
matching the set-point flow.
The first place to look if a water alarm is active is the flow
meter reading. If there isn’t a green bar or a digital
reading then the system is not measuring flow, and this
is reason for the alarm (see the Flow Meters section for
more detailed troubleshooting)
The flow reading can be checked quickly by pressing button
#13 on the keypad to add water to the mix bowl.
Check the flow meter K-Factor in the Sensor Calibration
screen to ensure it isn’t zero (div by zero). The default
setting is 379 pulses/gal (100 pulses/litre).
Check the water strainer for build-up that may be impeding
the flow of water.
Check for loose inlet connections or any indication of air in
water output. Air will affect flow meter reading and be
difficult to control. Is the winter blow down valve closed?
No water is flowing:
Is the water pump turning? If not is the water pump
hydraulic valve ON? Check to see if the solenoid
indicator light is ON.
Check the water pump coil current in Electrical Diagnostics.
Is there current going to the coil? Should be greater than
1000mA (12V) when button #13 is pressed.
If electrical checks are good manually override water pump
valve to see if pump starts turning. Turn override in and out
several times and re-test using electrical connection. If it
still does not work replace the valve.
Check the water strainer for build-up that may be blocking
the flow of water.
A
B
A
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E
D
C
C
Summary of Contents for P Series
Page 1: ...1 PROALL Mobile Mixer Service Manual P Model MX04703 August 2020 Rev 1 0 ...
Page 20: ...20 has been removed and not replaced then the charge pressure will drop to zero C ...
Page 85: ...International Manufacturing Inc P P1 OUT IN OUT IN 2 1 3 IN S1 S2 2 1 3 OUT IN ...
Page 100: ... ADMIX 1 ADMIX 2 WORK LIGHTS ...
Page 101: ... COOLER 1 VIB1 SPARE VIB1A SPARE VIB2A VIB2 VIB3 VIB4 VIB5 ...
Page 105: ... BATTERY V BATTERY V ...