Ravaglioli KPE32 Traduction Des Instructions Originales page 70

INDEX
10.2 NUT WEAR AND REPLACEMENT OF SCREW ASSEMBLY
Bearing nut wear leads to its breakage, in which case the carriage position will be 20mm lower.
This condition is detected by the electronic board when the down limit stops are activated, signalled by the acoustic warning device
operating in 1sec. ON - 1sec. OFF.
Consequently, the up stroke cannot take place.
Nut breakage requires the replacement of the entire screw assembly.
Screw assembly replacement procedure:
- Bring the carriage to a height of approx. 350mm and insert a block of wood (1) under the carriage.
- Disconnect the machine power supply.
- Remove the curtain (2).
- Remove the covers (3).
- Remove the proximity support (4) (caution: not the proximity from its support).
- Remove the drive belts (5).
- Turn the pulley until the carriage is in contact with the block of wood (fig. C).
- Disassemble anti-rotation tray (6) and the respective screws with washers.
- Remove grub screw and nut (7).
- Remove the bearing mounting plate (8) and the respective screws.
- Rotate the nut until it is flush with the safety nut (clockwise) (9).
- Screw the eye bolt into the end of the screw (10).
- Remove the screw assembly from inside the lift with a diagonal movement (fig. D).
- Carry out the steps in the reverse direction to fit the spare part (paying close attention to securing the grub screw).
Carry out the RESET refer to chapter 8.5.
5
2
3
4
10
9
1
Fig. A
KPE32 - KPC32
8
6
7
Fig. B
0474-M002-0
Fig. C
Fig. D
EN_29