-
29
-
1. Preparation for Operation
1-1. Bleeding
Bleeding is a process to eliminate the air which residues in the suction tube or pump head.
Make sure to carry the bleeding prior to the initial operation of the pump or when the liquid in the tank was
replaced or the pump rested for a long time.
EXT
START/STOP
EH-E
ON
EXT STOP OVER SET
1
2
WAIT
ON lamp
EXT
START/STOP
EH-E
ON
EXT STOP OVER SET
WAIT
START/STOP key
1
2
Starting and stopping pump operation
1) Switch on the power and ON lamp (green)
Lights and goes to WAIT mode after the word
“V3.0E” was displayed. (When the pump is
switched on for the first time.)
The word WAIT is lit during WAIT mode.
2) Push START/STOP key one time. The word
WAIT disappears and pump starts operation.
Every time START/STOP key is pushed, opera-
tion and stopping is repeated.
Caution
•
Do not operate the pump with discharge-side valve completely closed.
Operating the pump with discharge-side valve fully closed may lead to liquid leakage or pipe rupture.
•
Do not run pump dry.
Dry operation of the pump over a long time (longer than 30 minutes) causes the pump to overheat and
the pump unit (pump head, valve guide etc.) to become deformed or the pump head attachment to
become loose, which may result in liquid leakage trouble.
•
Keep the pump head firmly assembled.
If mounting bolts on the pump head are loosened, liquid leakage may result.
* Fasten the 4 or 6 hex. socket bolts tightly before starting the initial pump operation. (The bolts may be
loosened during storage or transportation of the pump, depending upon the condition.)
* Fastening torque: 2.6 N·m.
Tighten all the bolts fully by applying an equal amount of torque in a diagonal order among the bolts.
