During the reassembly, always make sure that existing index markings are in
line.
The reassembled drive unit must always be insulation-tested and the
reassembled pump must always be test-run before normal operation.
6.2 Torque values
All screws and nuts must be lubricated to achieve correct tightening torque.
Screws that are screwed into stainless steel must have the threads coated with
suitable lubricants to prevent seizing.
If there is a question regarding the tightening torques, then contact a sales or
authorized service representative.
Screws and nuts
Table 3: Stainless steel, A2 and A4, torque Nm (ft-lbs)
Propert
y class
M4
M5
M6
M8
M10
M12
M16
M20
M24
M30
50
1.0
(0.74)
2.0
(1.5)
3.0
(2.2)
8.0
(5.9)
15 (11) 27 (20) 65 (48) 127
(93.7)
220
(162)
434
(320)
70, 80
2.7 (2) 5.4 (4) 9.0
(6.6)
22 (16) 44 (32) 76 (56) 187
(138)
364
(268)
629
(464)
1240
(915)
100
4.1 (3) 8.1 (6) 14 (10) 34 (25) 66 (49) 115
(84.8)
248
(183)
481
(355)
—
—
Table 4: Steel, torque Nm (ft-lbs)
Propert
y class
M4
M5
M6
M8
M10
M12
M16
M20
M24
M30
8.8
2.9
(2.1)
5.7
(4.2)
9.8
(7.2)
24 (18) 47 (35) 81(60) 194
(143)
385
(285)
665
(490)
1310
(966.2)
10.9
4.0
(2.9)
8.1 (6) 14 (10) 33 (24) 65 (48) 114
(84)
277
(204)
541
(399)
935
(689)
1840
(1357)
12.9
4.9
(3.6)
9.7
(7.2)
17 (13) 40 (30) 79 (58) 136
(100)
333
(245)
649
(480)
1120
(825.1)
2210
(1630)
Table 5: Brass, torque Nm (ft-lbs)
M5
M8
2.7 (2.0)
11 (8.1)
Hexagon screws with countersunk heads
For hexagon socket head screws with countersunk head, maximum torque for all
property classes must be 80% of the values for property class 8.8 above.
6.3 Service
Regular inspection and service of the pump ensures more reliable operation.
6 Maintenance
8120.280 Sandy Inox Installation, Operation, and Maintenance Manual
27
Содержание 8120.280 Sandy Inox
Страница 1: ...www grindex com Installation Operation and Maintenance Manual 8120 280 Sandy Inox ...
Страница 2: ......
Страница 41: ......
Страница 42: ......
Страница 43: ......