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F00636
Troubleshooting
CAUSE
CORRECTIVE ACTION
I. ENGINE
A. Speed too low
Refer to engine manufacturer’s manual.
B. Rotating and/or reciprocating parts drag
Refer to engine manufacturer’s manual.
C. Speed too high
Maximum engine speed not to exceed maximum performance
curve speed as shown.
D. Loose or broken parts
Refer to engine manufacturer’s manual.
II. PUMP
A. Not primed
Reprime. Inspect suction system for air leaks.
B. Flow through pump completely
Locate and remove obstruction.
or partially obstructed
C. Internal leakage
Check wearing surfaces.
D. Rotating parts drag
Inspect. Repair.
E. Case, bracket and/or shaft distorted
Refer to installation instruction under “Pipe” and “Foundation”.
F. Impeller
Inspect for damage or insufficient diameter for condition.
III. SYSTEM
A. Pressure required by system at design
Compare pump pressure and flow rate against pump characteristic curve.
flow rate exceeds pressure rating of pump
Reduce system pressure requirement. Increase pressure capability of pump.
B. Obstruction in suction piping
Locate and remove obstruction.
C. Suction lift too high
Check with gauge or measure vertical distance between water surface and
center line of pump, allowing for friction loss in suction pipe. Reduce rate of flow
to obtain desired lift. Refer to pump characteristic curve.
D. Discharge head too low
Decrease rate of flow.
PROBABLE CAUSE
SYMPTOM
GROUP I
GROUP II
GROUP III
ELECTRICAL
MECHANICAL
SYSTEM
A
B
C
D
A
B
C
D
E
F
A
B
C
D
No water delivered
X
X
X
X
X
Not enough water delivered
X
X
X
X
X
X
X
Not enough pressure
X
X
X
X
X
X
Engine heats excessively
X
X
X
X
X
X
X
X
Abnormal noise and/or vibration
X
X
X
X
X
X
X
Содержание S.A.E.
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