MAINTENANCE
4-18 / Husky 3 Foam System
© 2022 Pierce Manufacturing Inc. All Rights Reserved.
Question Reason for Question Test Procedure
R. Is the Inject/Fill valve OK? If the Inject/Fill valve
sticks open or has a bad
seal, most of the foam
concentrate will circulate
between the foam pump
and the foam tank, with
little being injected into the
water stream.
Inspect the valve for proper operation. Switch
is closed in Inject Mode, open in Fill Mode.
Check the adjustment of the micro switch.
Inspect the micro switch for moisture.
1337
POM0931
ALL except 100ft Ascendant Aerial Tower
100ft Ascendant Aerial Tower Only
Replace electronic tank fill
valve switch.
No
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