Katsu Power DCA 22 Owner's Manual - page 9
Examine suction hose or pipe connections. Air leaks in the suction line
and connections to pump are the most frequent causes of priming trouble.
Use a new gasket in the hose coupling. New couplings sometimes require
two gaskets. The Hose lining may also become loose and clog the hose.
Keep the pump as close as possible to the level of the liquid being
pumped. It will give best performance on suction lifts less than 15ft. It is
not guaranteed to handle any lift over 20ft at sea level.
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CAUTION
The vacuum developed by the pump could damage the flat piece of rubber.
Shut off the pump quickly after the test has been done to prevent
any damage.
Make sure that the pump casing is full
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TROUBLESHOOTING
If the pump fails to prime:
If difficulties are experienced, in the majority of casings they can be
traced to well-known causes.
We suggest you check these points first to save needless expense.
Make sure that the pump casing is full of cool liquid.
If difficulty continues, remove suction hose, start engine and hold a flat
and thick piece of rubber, or other suitable material, against the suction
inlet. If the pump develops a strong pull against the material, the problem
Is not in the pump. If there is no pull, the shaft seal may need to be
replaced.
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Remember the pump is self-priming only when the casing pump is filled.
It will prime and reprime itself without refilling. Refilling is necessary
only if the pump has been drained or if the fluid has been lost.
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Priming time : With a suction lift from 5 to 10ft. The pump should
discharge the liquid in less than one minute. A suction lift of 20 ft. (at sea
level) should not require more than 3 minutes for initial prime. If pumping
does not start within this time, shut off engine and check carefully to
analyze the problem. (Refer to "Troubleshooting Section").
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O W N E R M A N U A L D C A K AT S U P O W E R W AT E R P U M P S
O W N E R M A N U A L D C A K AT S U P O W E R W AT E R P U M P S