Seepex BCSO 025-24 to 130-6L, Руководство по эксплуатации и сборке

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28
8
Malfunctions, causes, rectification
Ausgabe
issue
B / 11.09.2007
Dokument
document
OM.REC.01e
Blatt
sheet
2 (2)
Malfunction Causes Rectification
Pump
is not suc
k
ing
Pu
mp pu
mpin
g un
evenly
Con
v
eying cap
a
city is not achie
v
e
d
Pr
essure
hea
d is n
o
t
re
a
c
h
e
d
Pu
mp do
es
n
o
t st
a
rt up
Pu
mp seized / pum
p doe
s n
o
t
p
u
mp
Pump is
loud when running
Mo
to
r ge
ts
to
o
h
o
t
Pre
m
at
ur
e st
at
or
we
a
r
Shaf
t
seal is
leak
y
X X X Rotation speed too high. Reduce rotation speed for
high-viscosity media, risk
of cavitation.
X Joint play too large. Check mounting of cou-
pling rod bushing.
X X X X X Foreign objects in pump. Dismantle pump, remove
foreign bodies, replace
defective parts.
X X X X Stator/rotor worn. Dismantle pump and
renew defective parts.
X X X X Joint parts worn. Renew joint parts, use
seepex pin joint grease.
X X X X Suction pipe blocked. Clean the suction pipe.
X X X X X Temperature of pumping
liquid too high. Check temperature, use
an undersize rotor.
X X X X X Gland packing too firm/
worn.
Loosen packing gland or
tighten. Renew unusable
packing rings.
X X X X Solid content and/or grain
size too great. Reduce pump speed,
install screen with permit-
ted mesh width. Increase
liquid proportion.
X X X X Sedimentation/gumming of
solids when pump station-
ary.
Rinse through and clean
the pump immediately.
X X X X X Conveying product hard-
ens when the temperature
drops below a certain limit.
Heat the pump.
X X X X Stator swollen and unable
to withstand conveying
product. Select a suitable stator
material, use an under-
size rotor.
X X Bearings in pump drive
housing or drive unit
defective.
Renew bearings.
X Mechanical seal defective. Check sliprings and O-
rings for wear/resistance,
renew if necessary.