Operation - EBARA FSA Instruction Manual

Operation

1. Before starting
To rotate by hand, remove the motor end cap and
turn slot on shaft end with a screwdriver.
(1) Turn pump by hand to check for smooth
rotation. If movement is sluggish or uneven,
components inside the pump may be rusted
or the gland packing may be too tight.
(2) Remove the coupling bolts and briefly
operate the motor alone to check rotation
direction. The pump should rotate in a
clockwise direction when seen from the
motor side.
2. Operation :
Check rotation. Correct rotation is clockwise when viewed from top of motor. Pump should be
started with gate valve closed, then the operator should open the valve gradually.
(1) Close the air-release valve and discharge
valve after priming has been completed. If
there is a suction valve, open completely.
(2) Turn operation switch on and off two or three
times to check operating condition. Attach
shaft coupling guard after operation check
has been completed.
(3) Begin continuous operation and gradually
open discharge valve.
(4) Check that pressure, current, vibration and
noise (refer to Maintenance and service) are
Replace coupling bolts after inspection is
completed.
(3) Prime the pump. Operating the pump without
prime will cause breakdown.
Open air-release valve and prime pump. If
the piping is already full of water the pump
can be supposed to be filled up to the
discharge outlet, open the suction valve,
discharge valve and air-release valve to
prime.
(4) Rotate the pump by hand when priming to
remove internal air from casing.
CAUTION
at normal levels. Both the pressure gauge and
compound gauge cocks should be kept closed
except at specified times. Leaving them open
may lead to malfunction.
(5) If there is no check valve on the discharge
piping, close the discharge sluice valve slowly
when stopping pump operation. Turn off
operation switch after the sluice valve has
been completely closed.
(6) Subsequent operation can proceed without
checks, if all conditions are normal.
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