53TAKING CARE OF UNEXPECTED PROBLEMS

PUMP

PossibleCause CorrectionNo Pump Output
Low Pump Output PossibleC ause Correction
Check pump
chamber.
Check suction hose.
Measure suction and
discharge head.
Check engine.
Pump not primed.
Hose collapsed, cut or
punctured.
Strainer notcompletely
underwater.
Air leak at connector.
Strainer clogged.
Excessive head.
Engine lacks power.
Lever not in ‘‘HIGH’’
position.
Hosecollapsed,
damaged, too long, or
diametertoo small.
Air leak at connector.
Strainer clogged.
Hose damaged, too
long, or diameter too
small.
Marginalhead.
Engine lacks power.
Check throttlelever.
Check suction hose.
Check discharge
hose.
Measure suction and
discharge head.
Check engine.
Prime pump (p. 19 )
Replace suction hose
(p. 16 ).
Sink the strainer and
the end of a suction
hose completely
underwater.
Replace sealingwasher
if missing or damaged.
Tighten hose connector
andclamp (p. 16 ).
Clean debris from
strainer.
Relocate pump and/or
hoses to reduce head
(p. 15).
Seepage52.
Move lever to ‘‘HIGH’’
position (p.23).
Replace suction hose
(p. 16 ).
Replace sealingwasher
if missing or damaged.
Tighten hose connector
andclamp (p. 16 ).
Clean debris from
strainer.
Replace discharge
hose (p. 17 ).
Relocate pump and/or
hoses to reduce head
(p. 15).
Seepage52.
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