Use And Start-Up; Maintenance And Repairs - EBARA JEU Operating Instructions, Installation & Maintenance Manual

Ebara Self Priming Jet Pumps

Use and Start-up

WARNING
– NEVER RUN THE PUMP WITHOUT WATER. LACK OF
WATER MAY CAUSE SEVERE DAMAGE TO THE INTERNAL COMPONENT.
General Warnings
STarTING – When the pump is up to operating speed, open the discharge
valve to obtain desired capacity or pressure.
WARNING! DO NOT ALLOW THE PUMP TO RUN WITH THE DISCHARGE
VALVE TIGHTLY CLOSED. IF THE PUMP RUNS FOR AN EXTENDED
PERIOD OF TIME WITHOUT LIQUID BEING DISCHARGED, THE LIQUID IN
THE PUMP CASE CAN GET EXTREMELY HOT CAUSING SEVERE
DAMAGE TO THE PUMP AND POSSIBLY CAUSE INJURY TO PEOPLE.
Starting
a)Ensure that the foot valve is not blocked.
b)Switch on and off two or three times to check operating conditions.
c) begin continuous operation and gradually open the gate valve on delivery.
d)Check that noise, vibrations, pressure and electric voltage are at normal
level (refer to page 11).
Stopping
a)Close the gate valve on delivery (this should always be done if the system
is without no-return valves, especially in the presence of high heads), to
prevent over-pressures in the pipes and pump due to water hammer.
b)Switch off.

Maintenance and repairs

WARNING – BEFORE CARRYING OUT ANY MAINTENANCE OPERATIONS,
DISCONNECT THE PLUG AND/OR SWITCH OFF.
THE PUMP MUST BE DISMANTLED ONLY BY TRAINED ELECTRICIANS.
FAILURE TO OBSERVE THIS RULE RENDERS THE WARRANTY
VOID. THE SAME APPLIES TO REPAIR JOBS AND/OR REPLACEMENTS.
When the pump remains inactive for a long period, it is advisable to empty it
completely, removing the drainage and filling caps, wash it out thoroughly with
clean water, then drain it again, ensuring that no water is left inside it.
This operation must always be performed when there is a risk of frost, to prevent
breakages of the pump body.
Ebara Fluid Handling
www.pumpsebara.com
(t) 803 327-5005 • (f) 803 327-5097
JEU
10
rev. 01/12