Rohm KZS-H, Перевод оригинального руководства по эксплуатации

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7 | Maintenance
36 / 44 KZS-H_KZS-HG
Activity Interval
Checking the Clamping Force.
See
Checking the Clamping Force
[ } 40] .
Monthly
or at the latest after 10,000 clamping
cycles.
Complete cleaning (maintenance, ba-
sic cleaning and replacement of wear
parts).
See
Complete Cleaning [ } 40] .
Depending on conditions of use and
use of coolant after approx. 2000 hrs.
or at the latest after 100,000 clamping
cycles.
7.3 Maintenance Work
7.3.1 Checking the Tightness of Screw Connections
If screws are replaced or undone, incorrect replacement or incorrect attach-
ment may lead to dangers for persons and objects. For this reason, for all
holding screws, the screw recommended by the manufacturer of the screw
must be used and the tightening torque applied in accordance with the screw
quality.
For cylinder head screws of the conventional sizes M4 – M24 and strength
classes 8.8, 10.9 and 12.9, the following tightening torque table applies:
Tightening torque in Nm
Strength
class M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24
8.8 3.0 5.9 10.1 24.6 48 84 133 206 295 415 567 714
10.9 4.6 8.6 14.9 36.1 71 123 195 302 421 592 807 1017
12.9 5.1 10 17.4 42.2 83 144 229 354 492 692 945 1190
The table values do not apply to tightening torques expressly specified
elsewhere!
When replacing the original screws, the strength class specified by the manu-
facturer is to be observed. In the case of mounting screws for clamping
devices, clamping inserts, top jaws, rigid stops, pre-clamped covers, equal-
ising weights and comparable elements, strength class 12.9 is always to be
used.