PALAZZANI RAGNO XTJ 32 / C, Operation And Maintenance Manual

Page: 133 / 210

Palazzani
Palazzani Industrie spa
OM 601 pag 16 Cap 6
6.11. GENERAL ELECTRIC SYSTEM AND BATTERY RECHARGER CHECK
The machine mounts a rectifier for the battery charge, set in the general electric
frame (box1).
This rectifier is automatically fed by the plug (both 220 V or 380 V) for the
equipment starting.
Also the diesel engine contributes to the battery charge, when it is running.
Thus, it is necessary to keep the electrolyte level in the batteries checked and keep
the positive poles greased.
We've seen that it is fundamental to check the safety devices correct functioning,
many of which are electric and may simulate manoeuvre mistakes.
Often, the electric plant check corresponds to the searching for a failure, given that
these parts are the most exposed to injuries due to rain, powder, vibrations etc.
The maintenance employee has to be specifically instructed, but above all precise
and respectful of the electric parts and their connections.
We remind you some important things.
•
The microswitches, the relays, the diode valves and the condensers may be
similar but connected each other in different ways. We recommend to replace
them with parts that has the same brand and the same code; try to remember the
colour of the cables or the terminal numbers not to make connections mistakes
•
Do not take off more than one relay at a time, check it and if necessary replace it
with an equal one
•
The microswitches have a symbol representing a little arrow inside a circle or
this
P
. They're just in case of emergency and cannot be replaced with other
similar parts which do not have this symbol
•
Be careful with NA or NC connections
•
Always re-connect the grounding cables and the equipotentiality cables
•
The emergency stop buttons must be repaired immediately when a failure is
encountered.
•
Follow carefully the scheme and do not operate any modification that may
damage or commit the entire machine functioning.
•
After any intervention check all the machine emergency functions.
N.B. The access to the inside of the electric plant wrappings is recommended
to be executed by instructed personnel only.