© 2022 Pierce Manufacturing Inc. All Rights Reserved. Husky 3 Foam System / 4-19
MAINTENANCE
4-4. 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”.
4-5. 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.
Common Hardware
Check bolts, nuts, and screws for obvious looseness, or missing, bent, or broken conditions. Look for rust around
bolt heads. Tighten any obvious loose parts.
Weldments
Inspect for rust or gaps where parts are welded together. Broken parts should be repaired or replaced.
Electrical Wiring and Connectors
Look for cracked or broken insulation, bare wires, and loose or broken connectors. Tighten loose connectors and
make sure wires are in good shape. Repair all bad wiring and connectors.
Lines and Fittings
Look for wear, damage, and leaks. Make sure clamps and fittings are tight. Wet spots can indicate a leak, and a
stain around a fitting or connector can also indicate a leak. If a leak originates from a loose fitting or connector,
tighten it. Replace any leaking line or fitting.
Hydraulic Tank
The fluid return line, located at the top of the tank, should be cracked open when performing service on the hydraulic
system to prevent siphoning of oil that is in the tank.
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.
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