HALE FLEX Series - Loss of Suction Symptoms, Causes, and Remedies; Table 6. Loss of Suction SCR Table

29
8.1.1 Loss Of Suction Symptoms, Causes, And Remedies
Table 6 provides the primary symptoms, causes, and remedies for troubleshooting cavitation issues.
Cavitation limits pump performance and can damage the pump. Refer to Technical Manual for more
information.
Table 6. Loss Of Suction SCR Table
NOTE: For troubleshooting information, refer to FSG-MNL-00184. The manual is contained
on the flash drive provided with the pump or available from the TECH RESOURCE
CENTER on the Hale Products website (www.haleproducts.com).
SYMPTOM
CAUSE
REMEDY
Loss of Suction Suction Drain Valve And/or Air Bleed
Valve Open Or Leaking
Verify all suction drain valves and/or air bleeder
valves are closed.
Document leak (isolate to device if possible)
and remove apparatus from service IAW AHJ.
See NOTE.
Suction Hose Connections Not Tight Tighten hose connection(s).
Replace with different hose(s).
Suction Hose Connection Gaskets
Leaking
Lubricate hose connection gasket(s).
Replace hose connection gasket(s).
Suction Hose Strainer Clogged Clean strainer and remove debris from water
around strainer.
Keep strainer off bottom of water source.
Whirlpool Near Suction Hose Strainer Submerge strainer end of hose in water source
at least 4X suction hose diameter size.
(submerge a 6 inch [150 mm] suction hose
2 feet [0.6 m] below water surface)
Pump Too Far From Water Source
• Suction Hose Too Long
• Suction Lift Too High
If possible, move pump closer to water source
and remove a section of suction hose.
If possible, use larger diameter suction hose(s).
If possible, reduce lift height.
Operate pump at a reduced flow rate.
Truck Intake Manifold and Plumbing
Leaking
Document leak (isolate to device if possible)
and remove apparatus from service IAW AHJ.
See NOTE.