Pierce HUSKY 12 GPM, Operation & Maintenance Manual

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MAINTENANCE
4-32 / Husky 12 Foam System
© 2017 Pierce Manufacturing Inc. All Rights Reserved.
4-10. Periodic Operation
The foam system should be operated periodically to insure that the foam system is operational, and also to circulate
the foam concentrate through the pump. The preferred method is a periodic operation of the system in a normal
discharge condition as described in
Section 3, “Operation”
.
4-11. General Maintenance Procedures
Cleanliness
Dirt, grease, oil, and debris may cover up a serious problem. Use an approved dry cleaning solvent to clean all metal
surfaces.
Question Reason for Question Test Procedure
Q. Is the electric tank fill valve
OK?
If the tank fill valve sticks
open, 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. Check
the adjustment of the micro switch. Inspect the
micro switch for moisture.
1025
Personal hearing can be PERMANENTLY DAMAGED if exposed to constant high noise levels of 85 db
or higher. Wear approved hearing protection devices when working in high-noise-level areas. Hearing
loss occurs gradually, but becomes permanent over time.
Replace electronic tank fill
valve and/or micro switch.
No
End