Bolted Connections - Siemens AH 180 Operating Instructions Manual

Maintenance
7.3 Repair
Notice
Before mounting the bearings, ensure that the parts and components that are to be located
on the shaft inside the bearing have been mounted beforehand!
To fit the bearings on the shaft, heat them up to about 80°C in oil or air.
Then push the bearings onto the shaft up to its shoulder.
Notice
Avoid any heavy blows that might damage the bearings.
Fill the bearings with specified grease (see section entitled "Types of grease") until it is flush.
Also observe the following installation condition:
• If rotary shaft seals without helical spring are installed, the replacement part must also be
[ID: 377]
7.3.4

Bolted connections

Tightening torques for bolted connections
The bolted connections with metal contact surfaces (end shields, bearing cartridge parts,
terminal box parts bolted onto the stator frame) should be tightened to the following torques,
depending on the thread size.
Tightening torques (Nm, with a ± 10% tolerance) for a thread size of
M6
8
Please refer to the relevant sections and drawings for all other tightening torques (electrical
connections and bolted connections for parts with flat gaskets).
Bolt locking devices
Nuts or bolts that are mounted together with locking, resilient and/or force-distributing
elements (e.g. tab washers, spring lock washers, etc.) must be refitted together with
identical, fully functional elements.
Always renew positive-action locking elements!
[ID: 379]
7-14
installed without a spring.
M8 M10
20 40
M12 M16
70 170
SIEMENS AG A5E00215729A, 1PH718
Operating Instructions - Three-phase induction motor - AH 180
M20 M24
340 600 Nm
V 2.0