Ducar DPT50 - Page 29

29
PUMP
No Pump Output Possible Cause Correction
1. Check pump chamber. Pump not primed. Prime the pump
2. Check suction hose.
Hose collapsed, cut or
punctured.
Replace suction hose
Strainer not completely
underwater.
Sink the strainer and the
end of a suction hose
completely underwater.
Air leak at connector.
Replace sealing washer if
missing or damaged.
Tighten hose connector
and clamp
Strainer clogged. Clean debris from strainer.
3. Measure suction and
discharge head.
Excessive head.
Relocate pump and/or
hoses to reduce head
4. Check engine. Engine lacks power. See page 26.
Low Pump Output Possible Cause Correction
1. Check suction hose.
Hose collapsed,
damaged, too long, or
diameter too small.
Replace suction hose
Air leak at connector.
Replace sealing washer if
missing or damaged.
Tighten hose connector
and clamp
Strainer clogged. Clean debris from strainer.
2. Check discharge hose.
Hose damaged, too
long, or diameter too
small.
Replace discharge hose
3. Measure suction and
discharge head.
Marginal head.
Relocate pump and/or
hoses to reduce head
4. Check engine. Engine lacks power.