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Table 25: 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
M42
M48
7 Servicing/Maintenance
ð If the pressure does drop, check the sealing elements and screwed
connections.
ð Repeat the leak test.
4. Remove the testing device.
5. Apply a thread-locking agent (Loctite 243) and liquid sealant to screw plug
903.04.
6. Re-insert screw plug 903.04 with new joint ring 411.04.
Table 24: Symbols key
Symbol
Description
Always secure screwed connections marked with this symbol with
L
243
Loctite 243 .
Always apply a liquid sealant (e.g. Hylomar SQ32M) to sealing surfaces
FD
marked with this symbol.
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 54) .
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
3904 4338 1281 1423 2745 3050 3233
5880 6534 1929 2144 4135 4594 4870
NOTE
If using an adjustable torque wrench or torque screwdriver, adjust it to a value
within the indicated range between the minimum and the nominal value.
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
3592
5411
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
2745
3050
4135
4594
75 of 112
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