Operating instructions
– LBA4/6/7 – 2017 Version
63
18.2 Replacement of the geared motor unit
18.2.1
LBA4
The LBA 4 geared motor unit is replaced following the procedure below:
A-
Remove the top cover, then the boom
B-
Unscrew the inductive sensors and remove them via the holes on either side of the bracket
C- Disconnect the geared motor connected to the variable frequency drive
D- Unscrew and remove the 4 locknuts of the geared motor support brackets
E-
Remove the geared motor unit
F-
Install the new geared motor unit in the place of the old one
G- Rescrew the 4 locknuts
H- Tighten the 2 nut screws that secure the bearing on the bracket
I-
Reconnect the new geared motor unit to the variable speed drive with terminals U, V, W
and to the earth
J-
Replace the inductive sensors as they were before the replacement
K-
Readjust the position
sensors (see paragraph “9.3 Adjustment of stops and sensors”)
B
C
D
E
J
I
G
F