Component
Thread
Strength category
Torque [Nm]
Towbar
M20
10.9
540–560
M24
8.8
670–690
Tab. 21 Towbar tightening torque
2.5 Compressor
2.5.1 Working pressure and FAD
Maximum working pressure [bar]
8.6
10
12
14
SIGMA airend
293 G
Free air delivery [m
3
/min]
17
15.5
13.5
11.5
Tab. 22 Working pressure and FAD
2.5.2 Compressed air outlet
Outlet valve ["]
Number
G 3/4
3
G 2
1
Tab. 23 Compressed air distributor
2.5.3 Pressure relief valve
Further information Maximum working pressure: see nameplate
Maximum working over‐
pressure [bar]
Activating pressure [bar]
8.6
11
10
13
12
15
14
16
Tab. 24 Relief valve activating pressure
2.5.4 Temperature
Machine temperatures
Values
Recommended airend discharge temperature for
switching to load [°C]
30
Typical airend discharge temperature during opera‐
tion [°C]
75 ..... 100
Maximum airend discharge temperature (automatic
safety shut-down) [°C]
117
Tab. 25 Machine temperatures
2
Technical Specification
2.5
Compressor
No.: 9_9425 01 E
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
9