FLENDER SECUREX T 3950de, Assembly And Operating Instructions Manual

Page: 18 / 32

Assembly
4.3 Disassembly and exchange of wear parts
18
Assembly and operating instructions 3950de
Edition 05/2022
4.3 Disassembly and exchange of wear parts
The friction linings of the torque limiter are subject to continuous wear, which requires
occasional replacement of the linings depending on the tripping frequency.
Procedure
1. Loosen the clamping nut (3) by first bending up the locking plate (8) or loosening the
locking screw (11), depending on the size. Now loosen all adjusting screws (10), if
present, until the spring washer (7) are force-free. Then loosen the clamping nut (3).
2. Depending on the mounting position of the torque limiter on the shaft, it may have to be
dismantled from the shaft to replace the friction linings (4). If this is necessary, loosen
the set screw (2) and slide the hub axially off the shaft.
3. Now unscrew the clamping nut (3) completely from the hub thread. Gradually remove
all parts up to and including both friction linings (4, 6, 7, 8, 9, 10, 11,12).
4. Clean the contact surfaces of the chute element (12) and replace the worn friction
linings with the new linings.
5. Now reassemble all previously removed parts (4, 6, 7, 8, 9, 10, 11, 12) in their original
order. Make sure that the spring washer are correctly aligned. Turn the clamping nut
(3) only slightly up to contact.
6. Check the centric fit of all components, especially the outer friction lining, and correct it
if necessary.
7. If you have disassembled the torque limiter from the shaft, clean the bore of the hub (1)
and the shaft. Then coat the bore of the hub (1) and the shaft with MoS2 assembly paste
(e.g. Microgleit LP 405) and place the preassembled torque limiter on the shaft so that
the shaft and hub ends are aligned. Secure the hub of the torque limiter with the set
screw (2) by tightening it to the specified tightening torque T
A
(see section Speeds,
geometry data und weights (page 29)).