NORD Drivesystems B1904 - Manual (Page 16)

Operating and Installation Instructions FDB (Getriebebau NORD)
Version 08.2011
Page 16 of 23
4. Assembly
4.1 Mechanical Installation
4.1.1 Prerequisites and Preparation
- When unpacking the spring-applied brake check for damage, and missing parts (according
to delivery note). Complaints regarding damages in transit have to be immediately made with
the supplier, complaints of missing parts or short supply have to be made with PRECIMA
(also refer to 2.5).
- Compare the data on the name plate of the brake with the suppliers invoice and customers
order.
ÎAttention!
Should the checks result in any uncertainties or discrepancies, the brake must not be
installed and commissioned without prior consultation with PRECIMA.
4.1.2 Counter-friction surface
4.1.2.1 Motor endsheild or adaptor, etc. as counter-friction surface
- Check whether the existing counter-friction surface meets the relevant requirements
(material: steel, steel casting, grey cast iron - no aluminium / stainless steel with limitations -
surface quality Rz 6.3 and whether it is free from grease and oil.
4.1.2.2 Flange, friction plate
- If the counter friction surface ís supplied in the form of a flange (item 7, illustration 4.1) or a
friction plate (item 8), first of all flange or friction plate have to be bolted to the motor
(independent of the brake). The thread of the screws to be used corresponds with the thread
of the fastening screws of the brake. The hole pitch circles must be identical as well. In
general, it is also possible to do without this screw connection, however, for reasons of
performance this approach and practice is not recommended by M/s. PRECIMA
particularly with regard to the friction plate.
ÎAttention!
Should the counter-friction surface not meet the relevant requirements, the brake must
not be installed and commissioned without prior consultation with PRECIMA. Completely
remove grease and oil from the counter-friction surface before processing the brake
further!
4.1.3 Hub and rotor (illustration 4.1)
ÎStop!
Before actually mounting the rotor, its thickness has to be checked in accordance with
3.2.2.4. S
new
is the value for a new rotor (tolerance = 0/-0.1 mm), s
min
is the minimum
permissible rotor thickness. When installing a new rotor, s = s
new
must be guaranteed. In
case of a reassembly (e.g. after a dismounting caused by maintenance work), s > s
min
must be guaranteed, otherwise the rotor has to be replaced.