2.4 Machine (without options)
2.4.1 Noise emission
Guaranteed sound power level:
Type
M27
Guaranteed sound power level
(1), (2)
[dB(A)]
98
(1)
in accordance with Machinery Directive 2000/14/EC,
(2)
applies exclusively to machines lined with sound proofing material.
Tab. 19 Guaranteed sound power level
Emission sound pressure level
Type
M27
Emission sound pressure level
(3)
[dB(A)]
(according to EN ISO 11203)
81.5
Measurement distance: d = 1 m
Logarithmic surface ratio: Q2 = 16.5 dB(A)
(3)
Calculated from the guaranteed sound power level (2000/14/EC Directive, Sound Emission
Standard ISO 3744)
Tab. 20 Emission sound pressure level
2.4.2 Tightening torque
2.4.2.1 Tightening torques for screws
Overview:
■ Standard values for M4–M8 screws
─ Surface finish: zinc plated (bright)
■ Standard values for M10–M24 screws
─ Surface finish: zinc flake coating (matte).
➤ Set the torque as appropriate for the surface finish and friction coefficient.
Standard values for M4–M8 screws with steel grade 8.8:
Thread
M4
M5
M6
M8
Torque [Nm]
3.0
5.9
10.0
24.5
Surface finish: zinc plated (bright)
Standards based on VDI 2230.
Tab. 21 Torques for M4–M8 screws
2
Technical Specifications
2.4
Machine (without options)
No.: 9_9548 22 HCE
Operating Manual Portable Rotary Screw Compressor
MOBILAIR M27 PE
9
