Richter MNK Series, Инструкция по установке и эксплуатации

Страница: 19 / 39

Series MNK pedestal group 4
Page
19
9230-003-en Revision 19
TM 10458 Edition 06/2022
7.7 Notes on assembly
♦
Use original spare parts. See also
Section 2.4
.
♦
Do not use any defective parts.
♦
Has the pump been shut down, drained and flushed
in accordance with the regulations?
See also Section 6.3 .
♦
Apply Anti-Seize special assembly paste (e.g. from
Weicon) to the fitting surfaces and screw thread
prior to assembly.
♦
The thread in the impeller
230
, the inner magnet as-
sembly
859
and on the pump shaft
211
must not be
greased as otherwise no optimum glued connection
is possible.
♦
The bushes
523/1
in the impeller
230
and
523/2
in
the inner magnet assembly
859
, the O-rings
412
and the housing gasket
401
as well as the rotary
shaft seals
421
at oil bath lubrication should always
be replaced.
♦
Important dimensions on centrings, bearing fits or
bearing play must be checked prior to final assem-
bly. If necessary, perform a trial assembly.
♦
Structure and details see the exploded drawing in
section 9 and sectional drawing in section 10 .
♦
Many metallic particles adhering to magnetic com-
ponents such as the inner magnet assembly
859
and drive magnet assembly
858
must be removed
prior to assembly. For this purpose simple plas-
ticene can be used..
♦
A complete assembly process is described in the
following. Sub-sections can be deduced from this.
7.8 Assembly
7.8.1 Assembly of drive unit Long life
grease lubrication
♦
Press roller bearings 321/1 and 321/2 on the drive
shaft 213 .
♦
Push drive shaft unit into the bearing pedestal
330
,
mount wavy spring washer
953/1
and rear bearing
cover
361
and tighten all components with the hex.
socket screws
914/6
. (Torque 15 Nm)
♦
Position bearing pedestal unit vertically and secure
(e.g. in a vice).
♦
Secure drive magnet assembly
858
on the drive
shaft 213 on the flat pivot point.
Caution ! Magnetic forces!
Risk of accident !
♦
Insert toothed lock washer
934/4
and tighten the
hex. socket screw
914/5
to a torque of 40 Nm. For
this purpose, do not use any magnetisable tools if at
all possible.
7.8.2 Assembly of drive unit oil bath lu-
brication
♦
Screw hex. screw 901/4 into the bearing pedestal
330 .
♦
Put shaft seal ring 421/2 in the bearing pedestal
330 .
♦
Insert shaft seal 421/2 and o-ring 412/1 into the rear
bearing cover 161 .
♦
Press radial ball bearings 321/1 and 321/2 onto the
drive shaft 213 .
♦
Push drive shaft unit into the bearing pedestal 330 ,
mount wavy spring washer 953/1 and rear bearing
cover 361 and tighten all components with the hex.
socket screws 914/6 . Torque 15 Nm.
♦
Position bearing pedestal unit vertically and secure
(e.g. in a vice).
♦
Secure drive magnet assembly 858 on the drive
shaft 213 on the flat pivot point.
Caution ! Magnetic forces!
Risk of accident !
♦
Insert toothed lock washer 934/4 and tighten the
hex. socket screw 914/5 to a torque of 40 Nm. For
this purpose, do not use any magnetisable tools if at
all possible.
7.8.3 Trial assembly of the slide-in unit
♦
Without adhesive
♦
Without O-rings 412/3 , 412/4
♦
For assembly, see Section 7.8.3 .
♦
Dismantled trial-assembled unit and perform as-
sembly.