9
Mounting the locking element – KTR 400
Torque
All screwshave to be tightened to the proper torque by using a torque-wrench.
Fastening the screws below or above the proper value decteases the maximum
torque-transmission. Due to different values of surface-friction even a proberly set
locking element might differ up to +/- 25% in ist torque-transmission.
Screw
Force Fv[N]
Torque Ta[Nm]
M8
27900
41
Mounting
-
The force transmission depends on the friction between the element and the
shaft. A clean surface and the proper torque of the screws are of major
importance to the correct function.
-
Fasten all screws evenly and crosswise up to the torque Ta in several steps. Use
a torque-wrench.
-
Controll all screws for proper torque. If possible re-controll the screws after a test-
run of the machine.
-
Clean used and dirty locking elements. Apply a thin oil-film to all parts and
reassemble the element.
Unmount the element by removing the screws. Remove the front-ring by screwing
four screws into the four extra threads. After removing the front-ring four other extra
threads will be visible. These are used to press out the rear-ring by screwing four
screws into the threads. Use screws of the same size for disassembling as they are
used for assembling the locking element.
