
1. DON'T RUN DRY
When the pump is used for water discharging from a preserve and others, pay attention
to rundry, If the pump is kept running even after completing water discharge, the rubber
impeller in the pump burned in 20 to 30 second.
2. KEEP LIQUID AT NORMAL TEMPERATURE (5 to 60℃)
3. REFRAIN FROM USING THE PUMP FOR SAND AND OTHER SLUDGE
Sludge such as sand damages the rubber impeller and the pump casing, This pump is
designed to used exclusively for sea water, fresh water.
Not applicable to corrosive liquid such as oil, organic solvent, strong acid, and strong alkali,
etc.
4. CONNECTING THE PIPE CERTAINLY
The suction thread is Right side. (watching from front view)
The impeller and Motor rotate clockwise direction. (See Photo 2)
The impeller is a consumption item, and the life differs depending on the working condition.
When suction power of the pump seems to be lowered, remove the front cover and check the
impeller for blade condition. If the blade is cracked, or excessively deflected, and does not fit to
the inner circumference of the pump case, take it as the limit of use, and replace the impeller in
the following procedure.
1. Remove the front cover fixing bolts.
2. Pull out the impeller with a set of pliers or a nipper. (See Photo 1)
3. Take out the shaft key. (Be careful not to damage the key or the shaft.)
4. Insert a new impeller without attaching the key. Insert it while turning into the direction of
impeller rotation to make the work easier. If it is still hard to insert, apply a small quantity
of grease or soap water to the top end of the impeller blade then the insertion becomes
easier. Be sure to match the deflection of impeller blade with the rotational direction. The
pump may sometimes fail to turn if the deflection is inverse. (See Photo 2)
5. When the impeller is inserted completely, rotate the motor fan by inserting the screw
driver etc. to the slit of motor fan cover and fit the key way on the shaft to the key way on
the impeller, then insert the key. Refrain from inserting the key forcibly by hitting as it can
be inserted by hand push.
CAUTION 取り扱い注意
インペラーの交換方法
HOW TO REPLACE THE IMPELLER
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