Atlas Copco XAS 175 Dd, Instruction Manual

Page: 33 / 34

I
NSTRUCTION
M
ANUAL
33
8. TECHNICAL SPECIFICATIONS
8.1 T
ORQUE VALUES
8.1.1 F
OR 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 F
OR IMPORTANT ASSEMBLIES
Assemblies Unit Torque values
Wheel bolts Nm 140 – 150
Axle/frame screws (M16) Nm 185 – 225
Axle/frame screws (M12) Nm 75 – 85
Bolts, towbar/axle (M12) Nm 75 – 85
Screws, towbar/frame (M12) Nm 75 – 85
Screws, lifting eye/flywheel housing Nm 190 – 200
Screws, coupling half/coupling Nm 80 – 90
Screws, towing eye/towbar (M12) Nm 75 – 85
Nuts, engine outlet collector/silencer Nm 50 – 55
Nuts, brake cable/wheel plate Nm 15 – 25
Note:
Secure the tank cap and drain cock of the fuel tank handtight.
8.2 S
ETTINGS OF SHUT
-
DOWN SWITCHES AND
SAFETY VALVES
Designation Unit
Engine temperature °C 150 - 155
Engine oil pressure bar(e) 1.14 - 0.8
Compressor temperature °C 116 – 120
Safety valve opening pressure
EC type bar(e) 9.5
8.3 C
OMPRESSOR
/
ENGINE SPECIFICATIONS
Compressor type XA(S)175 Dd
Reference conditions
1. Absolute inlet pressure bar 1
2. Relative air humidity % 0
3. Air inlet temperature °C 20
4. Normal effective working pressure bar 12
The inlet conditions are specified at the air inlet grating outside the canopy
Performance data
1. Engine shaft speed, normal and maximum r/min 2300-2390
2. Engine shaft speed, compressor unloaded r/min 1400
3. Free air delivery l/s 173
4. Compressed air temperature at outlet valves °C 85
5. Noise level (XAS175 Dd)
– Sound pressure level (LP), measured according to
ISO 2151 with a tolerance of +/- 3 dB(A) under free
field conditions at 7 m distance
dB(A) 74
– Sound power level (LW) complie with 84/533/EEC limits dB(A) 102
Design data
Compressor
1. Number of compression stages 1
Engine
1. Make KHD
2. Type F6L913
3. Coolant OIL/AIR
4. Number of cylinders 6
5. Output according to DIN ISO 3046 IFN at normal shaft speed kW 79
Unit
1. Capacity of compressor oil system l 30
2. Nett capacity of air receiver l 60
3. Capacity of fuel tank l 150
Unit dimensions
(with standard towbar)
Length mm 4380
Width mm 1670
Height mm 1530
Weight (dry) kg 1630
Outlet valve specifications
Number
diameter
3 3/4”
1 1 1/2”