Grundfos MMS 12000 User manual

Assembly
Instructions
Assembly
Instructions
Group Product Training & Group Service, 2000
Assembly
Instructions
Group Product Training& Group Service,
MMS 12000
MMS 12000
MMS 12000
MMS 12000

2
ASSEMBLY OF THRUST BEARING HOUSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
MOUNTING OF BEARINGS AND RADIAL SHAFT SEAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
MOUNTING OF ROTOR AND BEARING HOUSINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
MOUNTING AND ADJUSTMENT OF THRUST BEARING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
FITTING OF CABLE GLANDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
MOUNTING OF THRUST BEARING HOUSING AND SAND GUARD . . . . . . . . . . . . . . . . . . . . . . 18
FILLING OF MOTOR LIQUID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
COPYRIGHT  2000 BY
GRUNDFOS A/S
DK-BJERRINGBRO
DENMARK
ALL RIGHTS RESERVED.
NOPART OF THIS BOOK MAY BE REPRODUCED IN ANY WAY OR BY
ANY MEANS WITHOUT THE PRIOR PERMISSION OF THE PUBLISHER.
PRODUCED BY GROUP PRODUCT TRAINING & GROUP SERVICE.
PRINTED BY BB OFFSET, DENMARK.
Contents
Page

3
Assembly of thrust
bearing housing
Tools for assembly
1
Thrust bearing housing parts and tools
2
Insert diaphragm in thrust bearing housing
3
Fit diaphragm plate
4

4
Fit stationary disc for thrust bearing
5
Fit and tighten screws for disc
6

5
Lower motor bearing housing parts
and tools
Mounting of bearings
and radial shaft seal
1
Fit first bearing bush on tool
2
Fit second bearing bush on tool
3
Use tool or an ordinary hydraulic press to
insert bearing bushes
4

6
Note: Lubrication slots in thetwo bearing
bushes must be displaced
5
Upthrust bearing pad and screws
6
Fit upthrust bearing pad in
lower motor bearing housing
7
Upper motor bearing housing parts
and tools
8
Fit first bearing bush on tool
9
Fit second bearing bush on tool
10

7
Use tool or an ordinary hydraulic press to
insert bearing bushes
11
Note: Lubrication slots in the two bearing
bushes must be displaced
12
Radial shaft seal parts and tools
13
Fit housing for seal rings on tool
14
Fit seal ring part on tool
15
Use the tool as a press to assemble
the two parts
16

8
Screw toolinto bottom position
17
Correctly fittedseal ring
18
Fit circlip
19
Correctly fitted circlip
20
Fit tool inupper motor bearing housing
21
Place housing forseal ring on tool
22

9
Use the tool to press seal ring housing
into position
23
Turn until seal ring housing is in
bottom position
24
Remove tools
25 26

10
Fit rotor.
Be careful not to damage windings
Mounting of rotor
and bearing housings
1
Grease seal surface on stator housing
2
Fit gasket
3
Mount lower bearing housing
4

11
Use a crane to ease assembly
5
Fit washers and nuts
6
Tighten nuts to prescribed torque
7
Grease seal face on upper stator housing
8
Fit gasket
9
Mount upper bearing housing
10

12
Pull cables through bearing housing
11
Ensure correct sequence of cables
12
Fit protecting sleeve on shaft end
13
Press bearing housing into position
14
Fit washers and nuts
15
Tighten nuts
16

13
Fit key for thrust bearing
Mounting and adjustment
of thrust bearing
1
Mount thrust bearing plate
2
Fit washer and screw
3
Tighten screw
4

14
Press rotor assembly into top position
5
Measure shaft height:
Must be between 101.0–101.3 mm
6
If adjustment is needed,
dismantle thrust bearing plate
7
Remove key
8
Choose proper shim thickness:
1.0 mm or 0.5 mm
9
Place shim on shaft
10

15
Lubricate counter thrust bearing plate
with silicon oil
11
Lubricate thrust bearing plate with silicon oil
12
Mount thrust bearing plate
13
Fasten washer and screw
14
Tighten screw
15
Press rotor assembly into top position
16

16
Correct shaft height in horizontal pos.: 127.5–128.0 mm
Correct shaft height in vertical pos.: 126.6–127.0 mm
17
Fit gasket
18

17
Cable gland rings, cable grommets,
cable glands and special tool
Fitting of cable glands
1
Fit cable grommet, cable gland ringand
cable gland on cables
2
Press cable glandsinto bearing housing
3
Tighten cable glands with special tool
4

18
Fit thrust bearing pad assembly
in thrust bearing housing
Mounting of thrust bearing
housing and sand guard
1
Lubricate thrust bearing pads with silicon oil
2
Mount thrust bearing housing
3
Fit washers and nuts
4

19
Make surethat holefor filling valve ....
5
.... and hole for vent valve are in line
6
Tighten nuts to prescribed torque
7
Sand guard
8
Fit sandguard onshaft end
9
Tighten Allen screw
10

20
Fill up with motor liquid ...
Filling of motor liquid
1
...until it flows out of hole for filling valve
2
Fit and tighten filling valve
3
Raise top end of motor
4