11
Maintenance - General Information
11.2
Tightening torques
76
EasyCut B 870 CV Collect
Original Operating Instructions 150000707_01_en
DV000-000
X
Thread size
1
Strength class on screw head
X
Strength class
5.6
8.8
10.9
12.9
Tightening torque (Nm)
M4
2.5
3.5
4.1
M5
4.7
7
8
M6
8
12
15
M8
20
29
35
M10
23
39
58
67
M12
34
68
100
116
M14
108
160
188
M16
168
248
292
M20
340
488
568
Locking screws on the gearboxes
INFORMATION
The tightening torques only apply to assembly of locking screws, viewing glasses, ventilation
and breather filters and bleed valves in gearboxes with cast housings or aluminium or steel
housings. The term “locking screw” includes the drain plug, the inspection screw as well as
the ventilation and breather filters.
The table only applies to locking screws with external hexagon together with copper seal ring
and for bleed valves made of brass with shaped seal ring.
Thread
Locking screw and viewing glass with
copper ring*
)
Ventilation/breather filter made of
steel
Bleed valve made of brass
Ventilation and breather filter made of
brass
Steel and cast
Aluminium
Steel and cast
Aluminium
Maximum tightening torque (Nm) (±10 %)
M10x1
8
M12 x 1.5
14
G1/4“
14
M14 x 1.5
16
