Checking The Electrical Connection And Motor; Tightening Torques - KSB Amacan P 700-470 Installation & Operating Manual

Table 30: Tightening torques [Nm] depending on thread, steel grade and property class
Steel grade
Property class
Thread
M4
M5
M6
M8
M10
M12
M14
M16
M20
M24
M27
M30
M33
M36
7 Servicing/Maintenance
Table 29: Key to the symbols and codes
Symbol Description
L
Always secure screwed connections marked with this symbol with
243
Loctite 243.
Always apply a liquid sealant (e.g. Hylomar SQ32M) to sealing surfaces
FD
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

- A2, A4
8.8 -50
3,0 3,4 1,0 1,1
6,1 6,8 2,0 2,2
10.3 11 3,4 3,7
25 28 8,2 9,1
49 55 16 18
85 94 28 31
134 149 44 49
209 232 69 76
408 453 134 149
704 782 231 257
1025 1139 36 374
1403 1559 460 511
1888 2098 619 688
2445 2717 802 891
Amacan P
A2, A4 1.4410
-70 R ≥ 530 N/mm
p0.2
2,1 2,4 2,5 2,8
4,3 4,8 5,0 5,6
7,2 8,0 8,5 9,5
18 19 21 23
35 38 41 45
59 66 70 78
94 105 111 124
147 163 173 192
287 319 338 375
495 550 583 648
721 801 849 944
986 1096 1162 1291
1327 1475 1563 1737
1719 1910 2025 2250
1.4462
2 2
R ≥ 450 N/mm
p0,2
2,1 2,4
4,3 4,8
7,2 8,0
18 19
35 38
59 66
94 105
147 163
287 319
495 550
721 801
986 1096
1327 1475
1719 1910
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