Technical Specifications; Torque Values; General Torque Values; Critical Torque Values - Atlas Copco XAS 185 CD7 T4F HOP Instruction Manual

Technical specifications

TORQUE VALUES

GENERAL TORQUE VALUES

The following tables list the recommended torques applied for general applications
during assembly of the compressor.
For hexagon screws and nuts with strength grade 8.8
Thread size
M6
M8
M10
M12
M14
M16
For hexagon screws and nuts with strength grade 12.9
Thread size
M6
M8
M10
M12
M14
M16
Torque value, Nm (lbf.ft)
8(6)±25%
20(15)±25%
40(30)±25%
69(51)±25%
109(80)±25%
171(126)±25%
Torque value, Nm (lbf.ft)
14(10)±25%
34(25)±25%
68(50)±25%
116(86)±25%
185(136)±25%
288(212)±25%

CRITICAL TORQUE VALUES

Assemblies
Axles to frame:
Wheel nuts
Bolts, front axle/frame
Bolts, rear axle/frame
Compressor to frame:
Bolts, elements/gear casing
Bolts, elements/support
Bolts, support/buffer
Bolts, buffer/frame
Engine to frame:
Bolts, engine/support
Bolts, support/buffer
Bolts, buffer/frame
Lifting beams to frame:
Bolts, lifting beams/yoke (M16)
Bolts, lifting beams/yoke (M12)
Bolts, lifting beams/A-Frames
Bolts, A-Frames/frame
Hose clamps:
Worm Type
Constant Torque Type
Heavy Duty Constant Torque Type
Secure the drain cock and tank cap of the fuel tank handtight.
- 57 -
Torque value Variance
Nm ft.lbf
134 99 ±10%
97 72 ±10%
97 72 ±10%
80 59 ±10%
46 34 ±10%
N/A N/A -
N/A N/A -
145 107 ±10%
49 36 ±10%
62 46 ±10%
N/A N/A -
97 72 ±10%
N/A N/A -
N/A N/A -
4.3 3.2 ±10%
4.3 3.2 ±10%
10 7.4 ±10%