Nederman KSA 70 Manual página 10

Mounting
Mount the bracket to the separator housing
at an appropriate height and turn it so that
the inlet is in the desired direction. Use a
forklift to lift to the desired mounting height,
see figure 3. Thereafter fit the lid as demon-
strated in figures 4 and 5. If necessary, loo-
sen the balance weight and move it so that
the lid just closes. The metal strap, which
forms the attachment for the lid, can be loo-
sened and twisted so that the lid opens in the
desired direction, see arrow in figure 4. Do
not pull the screw too hard, the lower half of
the cylinder can be deformed!
Install a valve , TAV 50 or TAV 100, accor-
ding to figures 6 and 7. TAV 50 (fig.6) is sui-
table for airflows up to 400 m
100 is required for flows up to 600 m
which is the maximum flow allowed. Connect
pipe (or hose) to the KSA 70 inlet and to the
vacuum valve outlet.
Operation control
Figures 8-11 schematically demonstrate how
KSA 70 can be operated. Normally, direct
pneumatic control as per figures 8-10 is
simplest and least expensive.
Figure 8: If only one suction point is connec-
ted and the diameter of the suction hose is
38 mm, 50 mm or 63 mm (1.5"-2.5"), TAV 50
PC can be controlled directly from a pneu-
matic 3/2-valve at the worksite. An AS-set
can be fitted to TAV 50 PC for automatic
start/stop of the suction plant.
Figure 9: If two suction points are connected,
the diameter of the suction hoses is as
above and only one suction point is used at
one time, then control of TAV 50 PC can be
made via a dual input pneumatic valve. The
dual input valve has two input ports for two
alternative air signals, but it has only one
output port which can be connected to TAV
50 PC. Both suction points must be fitted
with vacuum valves of type KV 50 or TAV 50
MA. If flap valve KV 50 is used, the hose
must be removed after use. TAV 50 MA only
needs to be closed with a hand lever. An AS-
set can be fitted to TAV 50 PC for automatic
3 /h, while TAV
3 /h,
2(2) GB
start/stop of the suction plant.
Figure 10: If the suction hose is larger, Ø 63
-Ø 100 mm (2.5"-4"), the vacuum valve must
be TAV 100 2PC. This can be controlled
directly from a pneumatic 5/2-valve connec-
ted as the figure shows.
Figure 11: If more than two suction points
are connected before KSA 70, TAV 100 2PC
MV 24 V AC/DC must be used. In addition, a
control unit is required, connected as per the
figure. All vacuum outlets must be equipped
with a vacuum valve (KV 50 or TAV 50 MA)
and all valves must have an AS-set with a
micro-switch.
Maintenance
Every six months (or more often if the suc-
tion reduces) the top should be lifted off and
the perforated cap attached to the underside
of the top should be inspected, see figure
12. Rags and other debris can get caught on
the cap and choke the air flow.
When the top is removed, the wear insert
can also be inspected. However, thorough
inspection demands that the wear insert is
lifted out, see figure 13. (Note that the toggle
fasteners must be removed). If the wear
insert is worn, or there are tear holes, it must
be replaced. The design of the insert is criti-
cal. Even a very small deviation from the
correct shape causes poor separation of
cutting fluids.
Accessories
A splash guard should be used if liquid is
sucked up, see figure 14. There is otherwise
a risk that the liquid will fall outside the col-
lecting tank during emptying.
Spare parts
See separate document no. MX21-001.