11
Maintenance – General
11.3
Check the screws on the tines
72
KWT 1600
Original Operating Instructions 150000169_04_en
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.
This table applies only to locking screws with external hexagon in connection with copper seal
ring and for bleed valves made of brass with shaped seal ring.
Thread
Locking screw and sight glass with
copper ring
1
Ventilation/breather filter made of
steel
Bleed valve made of brass
Ventilation/breather filter made of
brass
Steel and cast
Aluminium
Steel and cast
Aluminium
Maximum tightening torque (Nm) (±10%)
M10x1
8
M12x1.5
14
G1/4“
14
M14x1.5
16
M16x1.5
45
40
24
24
M18x1.5
50
45
30
30
M20x1.5
32
G1/2“
32
M22x1.5
35
M24x1.5
60
G3/4“
60
M33x2
80
G1“
80
M42x1.5
100
G1 1/4“
100
1
Always replace copper rings.
11.3
Check the screws on the tines
WARNING
Risk of injury or damage to the machine caused by connection lines that are not
tightened properly
If the screw connections of the mounted components are not correctly tightened to the
prescribed tightening torque, the screw connections and the components may become loose
inadvertently. This can lead to serious accidents and damage to the machine.
Before initial commissioning, check that all screw connections are tight and tighten to the
specified tightening torque.