BA-PM400-500-english-D08853.pdf - 第5页
disposed of. Use only original KNF replacement parts. Parts and tools required: 1 Service Set (see section 7) Screwdriver blade width 2 mm Phillips screwdriver No. 2 Felt-tip pen. Change the diaphragms and valv…
pressure. This also applies when
the pump restarts after the power
has been cut off for a short period.
The components to be connected
to the pump must be designed to
withstand the pneumatic data of
the pumps (see Section 8).
The maximum permissible opera-
ting pressure (1 bar g) must not be
exceeded.
To prevent the maximum permis-
sible operating pressure being
exceeded, restriction or control of
the air or gas flow should only be
carried out in the suction line.
If restriction or control of the air or
gas flow is made on the pressure
side ensure that the maximum per-
missible operating pressure is not
exceeded.
When the pump is at a standstill
the inlet and the outlet must be at
normal atmospheric pressure.
Ensure the pump outlet is not clo-
sed or restricted.
Diaphragm and valve plates are the
only parts subject to wear. Wear is
usually indicated by a drastic
reduction in the pneumatic perfor-
mance. When replacing parts pro-
ceed as described in section 5.
Ambient conditions: see chapter
1.3.
4.2 Operation
Taking the pump into operation
Plug the mains plug of the pump
into a properly installed safety
socket.
Switch the pump on at the pump
mains switch (see fig. 1).
If cyclic drying of the pump heads
is required in the current evacu-
ation process, switch the drying
system on at the mains switch of
the control system (not included in
scope of delivery).
The drying system should only
be switched on if a container
has been attached to the pres-
sure line of the pump which will
catch the condensate; other-
wise the condensate will flow
out uncontrolled.
Check:
Tubing for correct tubing.
Electrical connections for correct
connection.
After the evacuation/process has been
completed, take the pump out of ope-
ration:
Purge the pump including the
connecting hoses with air at full
flow rate for about 5 minutes.
If the drying system is switched
on:
Switch the drying system off at the
mains switch of control system
(not included in scope of delivery).
Switch the pump off at the mains
switch of the pump.
Pull the mains plug of the pump out
of the socket.
5. Servicing:
Changing Diaphragms and Valve
Plates/Sealings
The diaphragms in both pump heads
should be changed at the same time.
When diaphragms are changed, valve
plates/sealings should also be repla-
ced. If the diaphragms are not changed
in both heads at the same time or dia-
phragms and valve plates/sealings are
not changed at the same time the
nominal performance of the pump is
not guaranteed after the service.
If a pump has been used for
aggressive or toxic substances or
other types of substances which
are hazardous, hazardous to health,
or injurious, the following points
must be observed:
1.) Clean the pump and its compo-
nents before servicing.
2.) Ensure that the service personnel
is not subject to a health hazard.
Apply the safety and protection
measures that are necessary for
the medium that has been handled
by the pump (example: the use of
protective gloves).
3.) Ensure that discarded parts and
materials are safely and correctly
PM 16527-860.3-2.00 e 11/05
3
Fig. 1: Pump PM 16527-N 860.3-2.00
Fan cover
Connecting box of the pump
Mains switch
for tube ID 10
6 mm deep
blue
brown
voltage valve
disposed of.
Use only original KNF replacement
parts.
Parts and tools required:
1 Service Set (see section 7)
Screwdriver blade width 2 mm
Phillips screwdriver No. 2
Felt-tip pen.
Change the diaphragms and valve pla-
tes/sealings in the following sequence:
a) Preparatory steps
b) Removing pump head
c) Changing diaphragm
d) Changing valve plates/ sealings
e) Refitting pump head
f) Final steps.
The position numbers in the
following text refer to fig. 2.
a.) Preparatory Steps
Shut down system (see section 4.2)
including disconnecting the pump
from the power source (pull out
plug of pump).
Remove tubing from the inlet and
outlet connectors of the pump.
On the pneumatic head connec-
tions, loosen one of the union nuts
by hand. Then slightly loosen the
angle-fitting in the pump head by
turning it anticlockwise
, so that the
connecting tube can be pulled out
Undo the screws that hold the
fan cover (see fig. 1) and remove
the fan cover from the motor.
b) Removing pump head
(for each head separately)
Mark the position of top plate ,
head plate , intermediate plate
, and housing relative to each
other with a felt-tip pen. This is to
ensure that the parts will be re-
assembled cor rectly at a later
stage.
Undo the eight screws and lift
the pump head off the housing .
The solenoid valve of the
drying system remains fitted
in this situation.
c) Changing diaphragm
Position the pump so that the dia-
phragm surface is upwards.
Turn the fan to bring the structured
diaphragm to top dead centre.
Using a small screwdriver, bet-
ween the housing and the outer
edge of the structured diaphragm,
carefully lift the edge of the dia-
phragm lightly upwards at one
point (making sure not to damage
the housing). Now grip the edge of
the diaphragm on opposite sides,
unscrew it by turning anti-clock-
wise.
Take the diaphragm spacer(s) off
the connecting rod and retain
them.
Check that all parts are free from
dirt and clean them if necessary.
Put the diaphragm spacer(s)
on the thread of the new dia-
phragm.
Fit the new structured diaphragm
: hold the connecting rod with
one finger, and gently screw in
(clockwise) the structured dia-
phragm with diaphragm spacers.
Turn the fan until the structured
diaphragm is at the top dead cent-
re. Using a small screwdriver, bet-
ween the housing and the outer
edge of the structured diaphragm,
carefully lift the edge of the dia-
phragm lightly upwards at one
point. Now grip the edge of the dia-
phragm on opposite sides (do not
overstretch the diaphragm!) and
tighten the structured diaphragm
clock-wise.
d) Changing valve plates/sealings
Undo the two screws .
Separate the head plate with
top plate from intermediate
plate .
Remove the valve plates/sealings
from the intermediate plate.
Check that the valve seats, the
head plate and intermediate plate
are clean. If scratches, distortion,
or corrosion are evident on these
parts they should be replaced.
Lay the new valve plates/sealings
in the recesses in the interme-
diate plate. The valve plates/sea-
lings for suction and pressure sides
are identical, as are upper and
lower sides of the plates/sealings.
e) Refitting pump head
Turn the fan to bring the structured
diaphragm to medium position.
Place the intermediate plate ,
with valve plates/sealings on
the housing, in the position indica-
ted by the felt-tip pen marking.
Place the head plate on the
intermediate plate in the posi-
tion indicated by the felt-tip pen
marking.
Place top plate in position
PM 16527-860.3-2.00 e 11/05
4
X
X
Fig. 2: Cross section of pump heads (symbolic)
Specification
Pos Description
Top plate
Head plate
Intermediate plate
Housing
Cross recessed raised counter-
sunk head screw
Structured diaphragm
Diaphragm spacers(s)
Connecting rod
Cross recessed raised cheese
head screw
Disk spring
Valve plate/Sealing
and insert screws with disk
springs , and tighten them until
the screw heads are just fully
seated (do not completely tighten
them!).
The concave side of the
first three disc springs must point
away from the screw head, the
next three towards it (see fig. 2,
detail X).
Gently tighten the screws ,
evenly and diagonally.
Turn the fan to check that the
pump rotates freely.
Now tighten screws hand-tight.
Tighten each of the screws a
half-turn more.
Repeat operations b), c), d), and e) for
the second pump head.
f) Final steps
Refit the the pneumatic head
connection:
Place tube onto the connecting
part of the angle fitting, turn angle
fitting to a straight position and
tighten the nut.
Refit the fan cover.
Reconnect the pump to the electri-
city supply.
If you have any questions about
servicing call our technical adviser
(see last page for contact tele-
phone number).
6. Troubleshooting
Sufficient vacuum is not reached
Possible reasons:
Tube connections are not tight
Condensate in the pump head
Switch the drying system on
or reduce the interval bet-
ween pump head ventilation
operations.
Diaphragms and/or valve plates/
sealings are worn out
Changing diaphragms and
valve plates/sealings:
see section 5.
If this problem occurs after chan-
ging of diaphragms and valve pla-
tes/ sealings:
See information in section 5.
Pump is switched on, but does not
run, the on/off-switch on the pump
is not lit
Possible reasons:
Pump is not connected with the
power source.
No voltage in the power source.
Fuse in the pump is defective (only
authorized/qualified personnel
should investigate this problem):
Disconnect the pump from
the power source by pulling
out plug.
Placement of fuse:
Fuse accessible after opening
the connecting box of the
pump (see fig. 1 for the posi-
tion of the connecting box).
Dimension of the fuse:
see section 8.
Pump is switched on, but does not
run, the on/off-switch on the pump
is lit
Possible reason:
The thermal switch has opened
due to overheating
Disconnect the pump from
the power source, let the
pump cool down, investigate
the reason for the overhea-
ting and irradicate it.
7. Ordering Information
Service Set
A Service Set contains all
replacement parts needed for one
complete service of the pump.
Service Set contains
2 diaphragms, 4 valve plates/sea-
lings
Order No.
047499
8. Specifications
Capacity: max. 60 l/min
Ultimate vacuum: 4 mbar abs.
Permissible operating pressure:
max. 1 bar
g
Permissible ambient
temperature: + 5... + 40 °C
Hose connection for tube ID 10 mm
Voltage pump: 230 V
Frequency: 50 Hz
Power consum-
ption pump: 220 W
Fuse pump
(2 x): 3.15 T [A]
IP 54
Voltage solenoid
valve 24 V DC
CE - Safety Demands
The pumps correspond to the
safety regulations of the EU low
voltage directive 73/23 EWG and of
the EU directive concerning elec-
tromagnetical compatibility 89/336
EWG. The requirements of the fol-
lowing harmonised standards are
fulfilled:
EN 55014
EN 61000-6-1
EN 61000-6-3
EN 61000-3-2/3
EN 61010-1
The pumps correspond to IEC 664:
the overvoltage category II
the pollution degree 2.
PM 16527-860.3-2.00 e 11/05
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