XAS136/186 Dd
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8. TECHNICAL SPECIFICATIONS
8.1 TORQUE VALUES
8.1.1 FOR GENERAL APPLICATIONS
The following tables list the recommended torques applied for general
applications at assembly of the compressor.
For hexagon screws and nuts with strength grade 8.8
Thread size M6 M8 M10 M12 M14 M16
Nm 9 23 46 80 125 205
For hexagon screws and nuts with strength grade 12.9
Thread size M6 M8 M10 M12 M14 M16
Nm 15 39 78 135 210 345
8.1.2 FOR IMPORTANT ASSEMBLIES
Assemblies Unit Torque value
Wheel nuts Nm 120 +/- 15
Bolts, axle/beams Nm 205 +/- 20
Bolts, towbar/axle Nm 80 +/- 10
Bolts, towbar/bottom Nm 205 +/- 20
Bolts, towing eye/towbar Nm 80 +/- 10
Bolts, lifting eye/flywheel housing Nm 205 + 20
Bolts, engine/drive housing (M12) Nm 80 +/- 10
Bolts, engine/drive housing (M14) Nm 125 +/- 10
Bolts, compressor element/drive housing Nm 80 +/- 5
Safety switches Nm 35 +/- 5
Note:
Secure the tankcap and drain cock of the fuel tank handtight.
8.2 SETTINGS OF SHUTDOWN SWITCHES AND
SAFETY VALVES
Designation Unit Value
Engine oil pressure bar(e) 2
Engine oil temperature ¡C 113
Compressor temperature ¡C 120
Safety valve opening pressure
EC type XA(S) bar(e) 10
XATS bar(e) 17
XAHS bar(e) 17
XAVS bar(e) 17
ASME type XA(S) psi 150
XATS psi 250
XAHS psi 250
XAVS psi 250
8.3 COMPRESSOR/ENGINE SPECIFICATIONS
Compressor type XAVS136 Dd
XAHS146 Dd
XATS156 Dd
XA(S)186 Dd
Designation Unit
Reference conditions
1. Absolute inlet pressure bar(e) 1 1 1 1
2. Relative air humidity % 0 0 0 0
3. Air inlet temperature ¡C 20 20 20 20
4. Nominal effective working pressure bar(e) 7 10.3 12 14
The inlet conditions are specified at
the air inlet grating outside the canopy
Limitations
1. Minimum effective receiver pressure bar(e) 4 4 4 4
2. Maximum effective receiver pressure,
compressor unloaded bar(e) 8.5 11.8 13.5 15.5
3. Maximum ambient temperature at sea level ¡C 50 50 50 50
4. Minimum starting temperature ¡C -10 -10 -10 -10
5. Minimum starting temperature,
with coldstart equipment ¡C -20 -20 -20 -20
6. Altitude capability m
(see page 315) (see page 316)
Altitude unit performance curve
Max. allowable working pressure as a function
of altitude and ambient temperature
Performance data
1)
1. Engine shaft speed, normal and maximum r/min 2500 2500 2500 2500
2. Engine shaft speed, compressor unloaded r/min 1700 1700 1700 1700
3. Free air delivery
2)
l/s 185 156 141 133
4. Fuel consumption:
Ð at full load kg/h 16.9 16.7 16.3 16.8
Ð at unload kg/h 7.5 7.5 7.3 7.6
5. Specific fuel consumption g/m
3
25.4 29.7 32.1 35
6. Typical oil content of compressed air mg/m
3
< 5 < 5 < 5 < 5
free air
7. Engine oil consumption (maximum) g/h 14 14 14 14
8. Compressed air temperature at outlet valves ¡C 90 90 90 90
9. Noise level
Ð Sound pressure level (LP), measured
Ð according to EPA with a tolerance of
Ð +/- 3 dB(A) under free field conditions
Ð at 7 m distance dB(A) 74 72 72 72
Ð Sound power level (LW) complies
Ð with 84/532/EEC and
Ð 85/406/EEC limits dB(A) 102 100 100 100
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