Richter V&A RMI Series, Инструкция по установке и эксплуатации

Страница: 18 / 36

Series RMI
Page 18
9430-050-en Revision 00
TM 9886 Edition 03/2018
♦ Alternatively, the unit can be raised using a crane.
A thread is to be provided in the drive shaft to ac-
commodate a crane plug for this purpose.
CAUTION! When pulling out the bearing
pedestal, the axial magnetic forces (up to
max. 400 N without weight force) decrease
abruptly after being at maximum. Risk
of accident!
The torque of the magnetic coupling is indicated on
the nameplate.
7.6.2 Dismantling of drive unit long life
grease lubrication
♦ Undo hex. socket screw
914/5
with toothed lock
washer
936/1
.
♦ Remove drive magnet assembly
858
. If neces-
sary, use a pulling-off device.
♦ Undo screws
914/6
of the rear bearing cover
361
.
♦ Remove rear bearing cover
361
and wavy spring
washer
953/1
.
♦ Press drive shaft
213
with the two ball bearings
321/1
and
321/2
out of the bearing pedestal
330
in the direction of the motor.
7.6.3 Dismantling drive unit oil bath lu-
brication
♦ Undo hex. socket screw
914/5
with toothed lock
washer
936/1
.
♦ Remove drive magnet assembly
858
. If neces-
sary, use a pulling-off device.
♦ Drain oil from the screw plug
903/1
.
♦ Undo screws
914/6
of the rear bearing cover
361
.
♦ Press drive shaft
213
with the two ball bearings
321/1
and
321/2
out of the bearing pedestal
330
in the direction of the motor.
♦ Remove from the drive shaft
213
rear bearing cov-
er 361 incl. radial ball bearing 421/1 with cover
gasket
403
and wavy spring washer
953/1
.
♦ Remove rotary shaft seals 421/1 and 421/2 from
the bearing pedestal 330 resp. the rear bearing
cover 361 .
7.6.4 Dismantling the slide-in unit
♦ Undo housing screws
901/3
.
♦ Screw 2 hex. screws 901/3 into the forcing thread
of the bracket 344 .
♦ Press the housing 100 with the aid of these hex.
screws out of the bracket 344 .
♦ Remove bracket
344
upwards.
♦ lift off can 159 and can insert 158 . As the shaft
222
is introduced tightly into the can insert
158
,
this shaft is automatically removed together with
the thrust ring 510/3 .
Make sure that no parts of the plain
bearing fall. Risk of breakage!.
♦ Remove shaft
222
with thrust ring
510/3
from
the can 158 . Place a suitable tool, e.g. scribing
iron, behind the thrust ring and pull it off applying
force at several positions.
♦ Remove housing gasket
401
.
♦ Raise inner magnet assembly 859 with impeller
230 vertically. The wear ring 502/1 is removed
from the housing
100
at the same time.
♦ Remove thrust ring
510/2
using a screwdriver.
♦ Press out the bearing bushes
545
and distance
ring 504/1 from the suction side of the impeller.
Use a suitable mandrel made of plastic.
Alternatively, the puller can also be used. See
assembly aids in section 10.2 .
♦ Remove anti-torsion insert
566/2
.
♦ The circlip
932/7
must be destroyed to separate
the impeller
230
and inner magnet assembly
859
. For this purpose, carefully cut the circlip
open with a cutting knife all around the notch.
♦ Remove the impeller 230 from the seat of the
inner magnet assembly 859 . For this purpose,
clamp the inner magnet assembly
859
in a vice,
being careful not to damage the surfaces, and
press the impeller 230 out towards the suction
side.
Alternatively, the disassembling device can also
be used. See assembly aids in section 10.3 .
♦ Carefully remove the remaining parts of the circlip
932/7
.
7.6.5 Dismantling housing/shaft spider
♦ Pull shaft spider
338
out of the housing seat.
♦ Remove the two anti-torsion inserts
566/1
.
♦ Remove shaft sleeve
523/1
from the shaft spider
338
.
7.6.6 Changing the radial ball bearings
only long life grease lubrication
♦ To change the radial ball bearings
312
, only the
bearing pedestal unit can alternatively be re-
moved from the plant.
♦ Undo support bracket
183
from the base plate.
♦ Undo screws
901/5
from the connection lan-
tern/bearing pedestal.