Alfa Laval ALTB-SB-20, Инструкция по эксплуатации

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8 Appendix
Ensure totally clean surfaces during mounting. Always use original Alfa Laval parts.
3. Assembl
y
instructions, storage,
preparation, installation
www.nord.com B1000-GB-0713
-17-
Figure 3-12: Fitting the covers, Option SH, Option H, and Option H66
3.10
Fitting a standard motor
The maximum
permitted
motor
weights indicated
in the table below must
not
be exceeded
when
attaching the motor to an IEC- / NEMA adapter
Maximum permitted motor
w
e
ights
IEC
motor
size
63
71
80
90
100
112
132
160
180
200 225 250 280
315
NEMA Motor size
56C
143T
145T
182T
184T
210T
250T
280T
324T
326T
365T
Max. motor weight [kg]
25
30
40
50
60
80
100
200
250
350
500
700
1000
1500
Assembl
y
procedure to attach a
standard motor to the IEC adapter (Option IEC)/NEMA adapter
1.
Clean motor shaft and flange
surfaces of motor
and IEC /NEMA adapter and check for
damage. Mounting dimensions and tolerances
of the
motor must conform
to DIN EN
50347/NEMA MG1 Part 4.
2.
Push the coupling
sleeve
onto the motor
shaft so
that
the motor
parallel
key engages
into
the groove in the sleeve on tightening.
3.
Tighten the
coupling sleeve
on the motor
shaft in accordance
with
the motor manufacturer’s
instructions
until it touches the collar.
With
motor
sizes
90, 160,
180 and 225, any spacer
bushes must be positioned between the coupling sleeve and the collar. With standard helical gear units, dimension
B between the coupling sleeve
and the collar must be observed
(s
e
e
Figure 3-13)
.
C
e
rt
a
in
NEMA adapters
require the adjustment of the
coupling
in
accordance
with the specifications indicated on the adhesive plate.
4. If
the
coupling
half
contains
a
threaded
pin,
the
coupling
must
be
secured
axially
on
th
e
shaft. The threaded pin must be coated prior to use with a securing lubricant e.g. Loctite 242, Loxeal 54-03 and tightened to the correct torque. (See Chapter 6.2 for torque values)
5.
Sealing of the flange surfaces
of the motor and the
IEC /NEMA adapter is
recommended
if
the motor is installed outdoors or in a humid environment.
The flange surfaces
of motor and
adapter must be completely coated with
surface sealant
Loctite 574 or Loxeal 58-14 pri
o
r to
mounting so that the flange seals after mounting.
6. Mount
the
motor
to
the
IE
C
/
N
E
M
A
adapter,
do
not
forget
to
fit
the
gear
rim
or
the
sleeve.
(See
Figure 3-13)
7.
Tighten the IEC /NEMA adapter
bolts to the correct
torque. (See Chapter
6.2
for torque
values)
3. Assembl
y
instructions, storage,
preparation, installation
-18- B1000-GB-0713
www.nord.com
Figure 3-13: Fitting the coupling onto the motor shaft - various types of coupling I
Gear coupling, one-part
II
Gear
coupling,
two-part
III
Gear coupling, two-part with spacer bush
IV
Claw coupling, two-part
V
Claw coupling, two-part, observe dimension B: Standard helical gear unit:
SK0, SK01, SK20, SK25, SK30, SK33 (2-stage) SK010, SK200, SK250, SK300, SK330 (3-stage)
IEC size 63
IEC size 71
Dimension B (Fig. 3-13V)
B = 4.5mm
B = 11.5 mm
VI
Claw coupling, two-part with spacer bush
3.11 Retrospective
paintwork
Attention!
For retrospective
painting
of the gear
unit, the radial
seals,
rubber
elements, pressure venting
valves, hoses, type plates, adhesive
labels
and motor coupling
components
must not come
into contact
with paints,
lacquers
or
solvents, as
otherwise
components
may
be damaged or
made illegible.
57