6
www.imo.se
AC
F/
U
C
F5 2
01
9.
12 e
n-
G
B
, I
D
-N
o.
: 1
63
-0
44
/B
Fig 4. Distance between coupling halves.
(IMO AB standard coupling)
Outer diameter Distance between Outer diameter Distance between
of coupling
coupling halves
of coupling
coupling halves
(D mm)
(t mm)
(D mm)
(t mm)
A B
A B
50 26
2.0 8
148
3.5
67 40
2.5 16
168
3.5
82 55
3.0 18
194
3.5
97 65
3.0 20
214
4.0
112 80
3.5
24
240
4.0
128 95
3.5
26
Fig. 3 Alignment of the IMO AB standard coupling
t
max
0.1°
D
See table below
An angular
misalignment of
0.1° corresponds
to approx. 0.2 mm
deviation/100 mm.
Angular
alignment
Distance
between
coupling halves
Circular
run-out
A
X
Y
x = y - t
Ø D
t
B
Lifting of the complete pump unit with the lifting
device attached to the motor, should be avoided
as the motor’s lifting provisions may not be able to
carry the combined weight of the pump and motor.
!
Lifting a complete pump unit, using
slings or hooks attached to the pump
or connecting frame may be dangerous
since the centre of gravity of the pump
unit may be higher than the points of
attachments.
Mounting
For pumps in explosion-hazard areas
(→ ATEX additional instructions).
The pump must be securely mounted on a firm
stable foundation and positioned so that it is easily
accessible for inspection and servicing.
Provisions for collecting oil spillage when servicing
the pump should be considered.
ATTENTION
The installation must always be designed
to minimise damage. Should an
operational or functional failure occur.
E.g. precautions should be considered to
collect oil spillage due to a broken pipe
or pump housing, to stop pump operation
if overheating should occur or if the oil
volume is below a minimum tank level.
Alignment and shaft couplings
The pump shall be connected to its driver via a
flexible shaft coupling. Pumps of type ACG/UCG
and ACF/UCF may also be driven via gears or
pulleys as specified in the Product Description,
provided the radial forces are kept within the
specified range.
An angular misalignment of 0.1° corresponds to
approx. 0.2 mm deviation/100 mm.
The coupling and alignment shall be selected not to
transmit any axial or radial loads on the shaft ends.
IMO AB standard couplings shall have a distance
between the coupling halves as per table, fig 4. the
coupling halves shall be secured by lock screws.
For other types of couplings, please refer to
respective maker’s manual.
! When fitting the shaft coupling, do not
use a hammer or similar as this may
damage the ball bearing and shaft seal.
Use some kind of press tool.
!
When handling liquids that may harm skin
use gloves and/or protective clothing.
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