J.M. Voith SE & Co. KG/VTA | Instruction Manual
Installation
41
-performance universal joint shaft
Instruction manual (Translation)
G853 en 07/2013, Version1
6.1.2 Checking bolted connections and tightened parts
Ensure that bearing surfaces and threads of the bolts are in
perfect condition, that is,
− edges are burr-free
− no impact points (plastically deformed) present
− surface black anhealed, oiled, yet free from scale
For completely-rolled threads: do not re-cut thread for
re
asons of endurance strength.
Check threads of the bolts and nuts for accumulations or
soiling, e.g. rust, paint or hardened oil.
In case of accumulations or soiling: clean bolts and nuts and
lightly oiled with thin machine oil (12–38 mm
2
/s at 50 °C, ISO
VG 15 to ISO VG 46).
If you are using washers:
Make sure that the hardness of the washers is appropriate for
the property class of the bolts, e.g. washers HV 300
according to ISO 7089.
Ensure that the bearing surfaces are in good condition, that
is,
− edges burr-free
− no impact points present
Ensure that part joints and bearing surfaces of the bolts and
nu
ts are even, at right angles, parallel, burr-free and that nuts
are mounted so that the designation is visible and in case of
self-locking nuts, not visible.
Fig. 6.2: Dimensions of a stud screw
To order stud screws, the measurement d and the
measurement l must be measured and specified with the
order.
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