Donati GBA Series, Instructions Manual

Page: 57 / 64

MAN05MGO5
INSTRUCTIONS JIB CRANE SERIES GBA - GBP
53
•฀Check฀the฀wear฀of฀the฀rollingbands฀of฀wheels฀and฀guide฀rollers.
•฀Check฀the฀ball฀bearings฀which฀must฀be฀substituted฀in฀case฀of฀extreme฀noise฀or฀extreme฀friction,฀“stick-slip-
motion”, difficult and/or irregular rotation.
•฀Check฀that฀the฀end฀stops฀are฀not฀deformed฀and฀that฀there฀are฀no฀signs฀of฀sagging฀in฀their฀fixing฀to฀the฀structures฀
and that the buffer is intact and fixed well to its support.
Quarterly฀check฀of฀the฀efficiency฀of฀the฀wheels฀and฀the฀guide฀rollers฀of฀the฀“channel”฀
trolleys฀
(fig. 80) :
Annual฀check฀of฀the฀efficiency฀of฀the฀trolley฀buffers฀
(fig. 81) :
Replace฀wheels฀and/or฀guide฀rollers฀of฀the฀“channel”฀trolley฀if:
•฀The฀rolling฀diameter฀of฀the฀wheel฀shows฀a฀wear฀equal฀to฀or฀greater฀than฀5฀mm
•฀The฀rolling฀diameter฀of฀the฀guide฀roller฀shows฀a฀wear฀equal฀to฀or฀greater฀than฀2฀mm
•฀If฀it฀is฀necessary฀to฀replace฀even฀one฀wheel฀only,฀it฀is฀recommended฀to฀replace฀all฀trolley฀
wheels in order to guarantee the best performance and life.
Replace฀the฀buffers฀when฀there฀are:
฀ •฀signs฀of฀breaking฀or฀permanent฀deformation,฀cuts,฀abrasion,฀incisions
DONATI
TECHNICIAN
DONATI฀SERVICE
fig.80 fig.81
KMAN05MG05