© 2022 Pierce Manufacturing Inc. All Rights Reserved. Husky 3 Foam System / 4-15
MAINTENANCE
Question Reason for Question Test Procedure
N. Does the foam pump engage
in the manual mode?
To isolate the flow meter
from the system and
eliminate it as a possible
cause.
See “Manual Mode” on page 3-11.
Question Reason for Question Test Procedure
O. Is the wiring OK? The foam system will not
operate properly if the
wiring is faulty.
Refer to “System Diagrams” on page 4-23 for
additional circuit information.
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