Torques And Lubricants; Common Torques (Stainless Steel Screws); Special Torques And Lubricants; Quantities Of Grease In Bearings - Grundfos S Series Service Instructions Manual

6. Torques and lubricants

This section shows the screws and nuts that must be tightened to
a certain torque and the lubricants to be used.

6.1 Common torques (stainless steel screws)

Dimension M3 M4
1.1 ± 0.3 2.6 ± 0.6 5.2 ± 1
Torque [Nm]

6.2 Special torques and lubricants

Range Pos.
All 67
66
72
70
66
72a
70
All -
All 105
All 105b
All 107
Oils:
Silicone spray Valvoline: 96249498
Motor oil with viscosity grade SAE 10 W 40.

6.3 Quantities of grease in bearings

Range Bearing
66
Lower bearing
70
Range Bearing
66
Upper bearing
70
Grease: Esso Unirex S2: 96248520.

6.4 Motor oil

Range Installation type
S
66
C, D and H
S
70
C, D and H
Motor oil with viscosity grade SAE 10 W 40.
8
M5 M6 M8
8.8 ± 2 21 ± 5
Description
Screw
O-ring
O-ring
Shaft end
O-ring (stationary part)
O-ring (rotating part)
Set screw
O-ring (stationary part)
O-ring (rotating part)
Set screw
O-ring
Amount of grease
0.530 litres
0.675 litres
Amount of grease
0.300 litres
0.290 litres
Amount of motor oil
11.5 litres
9.2 litres
12.4 litres
9.0 litres
M10 M12 M16
42 ± 10 73 ± 15 175 ±1 5 350 ± 30 600 ± 30 860 ± 40 1160 ± 60
Quantity
1
349.3 x 5.7
1
399.3 x 5.7
349.3 x 5.7
1
399.3 x 5.7
-
1 75.57 x 5.34
1 65.1 x 3.53
3
1 74.2 x 5.7
1 64.77 x 2.62
3
1 139.3 x 5.7
M20 M24 M27
Torque
Size Lubricant
[Nm]
M20 280
-
-
- - Silicon spray
-
-
- 6
-
-
- 6
-
M30
-
Oil
Oil
Oil
Oil
-
Oil
Oil
-
Oil