English (GB)
19
9.9 Alignment
Pump and motor are connected by a standard or spacer coupling
from FLENDER.
If a fire pump set comes preassembled from factory, the coupling
has been accurately aligned by means of shims inserted under
the pump and motor.
During transport and installation, the pump-motor alignment may
have been affected. It must therefore always be checked when
the fire pump set has been installed.
The coupling used for connecting the pump and motor is shown in
fig. 24.
Fig. 24
Alignment of pump and motor
The values for
∅
and s
2
can be found in the following table.
The value for s1 is 0.1 mm.
Warning
Before removing the coupling guard, make sure
that the fire pump set has been switched off and
cannot be accidentally switched on.
Caution
Careful alignment is important for a long
coupling life. This is particularly important with
increased motor speed. Follow the installation
instructions of the coupling manufacturer.
TM
03
29
99
50
05
Outside
diameter of
coupling,
∅
[mm]
Clearance, s
2
[mm]
Standard coupling
Spacer coupling
Nominal
Tolerance
Nominal
Tolerance
80
-
-
4
0/-1
95
-
-
4
0/-1
110
-
-
4
0/-1
125
4
0/-1
4
0/-1
140
4
0/-1
4
0/-1
160
4
0/-1
4
0/-1
200
4
0/-1
4
0/-1
225
4
0/-1
4
0/-1
250
4
0/-1
4
0/-1
s
1
s
2
ø
90°
90°
90°
90°
Step
Action
1
T
M
01
88
80
08
00
The distance between
the shaft ends must
correspond to the value
for s
2
stated in the
above tables.
Displace the shaft keys
by 180 °.
2
TM
01
88
81
08
00
Check the alignment.
3
TM
01
88
82
08
00
Repeat the alignment
check with 90 °
displacement. See also
fig. 24.
4
T
M
01
88
83
08
00
Tighten the screws
holding the pump and
motor to the base frame.
5
TM
0
1
8
884
0
800
Check the alignment.
The tolerance for s1 is
± 0.1 mm. If the
alignment is OK, go to
step 10. The picture
shows that the pump
must be raised.
6
TM
01
88
85
08
00
Cut out the foil in
adequate size.
