Fitting On A Foundation Frame - Siemens FLENDER B3 E Series Assembly And Operating Instructions Manual

Gear units of sizes 13 to 28 have special alignment surfaces on the top of the housing for preliminary
alignment of the gear units. To facilitate alignment of gear units of these sizes, alignment threads are
provided in the housing base.
Fig. 36: Alignment surfaces on gear units from size 13
1 Alignment surfaces
The final fine alignment with the assemblies on the in­ and output side must be carried out accurately by
the shaft axes, using:
Rulers.
Spirit level.
Dial gauge.
Feeler gauge, etc.
Only then should the gear unit be fastened and then the alignment should be checked once again.
Record alignment dimensions (see also item 7.2).
The report must be kept with these instructions.
The accuracy of shaft axis alignment is an important factor in determining the life span
of shafts, bearings and couplings. If possible, the deviation should be zero (exception:
ZAPEX couplings). For amongst others the special requirements for the couplings,
refer to the specific operating instructions.
Non­observance can cause shaft rupture, resulting in serious injury or danger of life.

6.3.2.2 Fitting on a foundation frame

The foundation frame must be horizontal and plain. The gear unit must not be
excessively stressed when tensioning the fastening bolts.
The levelness of the gear­unit standing surface is especially important, as the contact
pattern of the teeth and the load of the bearings depend on it and the service life of the
gear unit is affected by it.
All points on the gear­unit standing surface must lie between two imaginary parallel
planes 0.1 mm per 1 m apart.
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BA 5033 EN 03/2011
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2 Alignment thread
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