6
There is a rub between impeller and flow
guidance.
Listen to the sound carefully,
whether the impeller is clashed with
the case and then to adjust.
P
o
w
er
co
n
su
m
p
ti
o
n
o
f
p
u
m
p
i
s
to
o
la
rg
e.
The impeller is obstructed by weeds or
foreign matters.
Check and clean up.
The connector of inlet pipe is loosed or
leakage.
Check inlet pipeline and remedy.
N
o
f
lo
w
su
d
d
en
ly
Suction head is over stipulation.
Check suction head and low the
position of pump.
MAL-FUNCT
ION
CAUSE
REMEDY
Suction head is too high and cause
cavitation.
Check suction head and lower the
position of pump.
Out put of water is too large.
Decrease the output of water.
Inlet pipe is obstructed by foreign body so
the resistance is too large.
Check inlet pipe and filter net to
clean up.
Rotary part is loosed.
Listen carefully and inspect the part
which cause the noise and stop the
machine to adjust.
Installing for pump unit is not stability.
Stop the machine for checking and
adjusting.
There is air lay up in the pump or pipeline.
Screw off air drain screw cock and
eliminate the air.
C
au
se
v
ib
ra
ti
o
n
o
r
n
o
is
e
Impeller damage.
Stop the machine for checking and
change the impeller with a new one.
Содержание TI3 KGP80B
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