7 Servicing/Maintenance
79 of 132
Amacan P
Table 29:
Key to the symbols and codes
Symbol
Description
L
243
Always secure screwed connections marked with this symbol with
Loctite 243
.
FD
Always apply a
liquid sealant
(e.g. Hylomar SQ32M) to sealing surfaces
marked with this symbol.
1. Undo and remove screw plug 903.31 and joint ring 411.31.
2. Screw the testing device tightly into the G 1/2 plug thread.
3. Carry out the leak test with the values specified above.
ð
The pressure must not drop during the test period.
ð
If the pressure does drop, check the seals and screwed connections.
4. Repeat the leak test if required.
5. Remove the testing device.
DANGER
Screw plug leaking or missing
Explosion hazard!
Damage to the motor!
▷
Never start up a pump set without screw plug 903.31.
▷
Apply a thread-locking agent (Loctite 243) to screw plug 903.31.
6. Apply a thread-locking agent (Loctite 243) to screw plug 903.31.
7. Re-insert and tighten screw plug 903.31 with new joint ring 411.31.
7.7 Checking the electrical connection and motor
Once reassembly has been completed, carry out the steps described in
(
ð
Section 7.2.1, Page 51) and (
ð
Section 7.3.4, Page 55) .
7.8 Tightening torques
Table 30:
Tightening torques [Nm] depending on thread, steel grade and property class
Steel grade
-
A2, A4
A2, A4
1.4410
1.4462
Property class
8.8
-50
-70
R
p0.2
≥ 530 N/mm
2
R
p0,2
≥ 450 N/mm
2
Thread
Minimum
Rated
torque
Minimum
Rated
torque
Minimum
Rated
torque
Minimum
Rated
torque
Minimum
Rated
torque
M4
3,0
3,4
1,0
1,1
2,1
2,4
2,5
2,8
2,1
2,4
M5
6,1
6,8
2,0
2,2
4,3
4,8
5,0
5,6
4,3
4,8
M6
10.3
11
3,4
3,7
7,2
8,0
8,5
9,5
7,2
8,0
M8
25
28
8,2
9,1
18
19
21
23
18
19
M10
49
55
16
18
35
38
41
45
35
38
M12
85
94
28
31
59
66
70
78
59
66
M14
134
149
44
49
94
105
111
124
94
105
M16
209
232
69
76
147
163
173
192
147
163
M20
408
453
134
149
287
319
338
375
287
319
M24
704
782
231
257
495
550
583
648
495
550
M27
1025 1139 36
374
721
801
849
944
721
801
M30
1403 1559 460
511
986
1096 1162
1291
986
1096
M33
1888 2098 619
688
1327 1475 1563
1737
1327
1475
M36
2445 2717 802
891
1719 1910 2025
2250
1719
1910
Содержание Amacan P 1000-700
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