Cormach 50000 WB 50000 WB80, Руководство по эксплуатации и техническому обслуживанию

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UT Handbook for Use and Maitenance – 50000 WB-80-87-95
Edition 01/11 Revisione 00
46
50000WB_e111_E.doc
(Chapter 4) - EXTRAORDINARY MAINTENANCE
Se la gru è stata usata con cura e sono state effettuate le manutenzioni previste,
essa non avrà bisogno di particolare manutenzione straordinaria per molto tempo;
tuttavia diamo alcune indicazioni per ovviare anche autonomamente a possibili
disfunzioni.
INCONVENIENCES REMEDIES
4.1 - THE CRANE DOES NOT
WORK
a) The pump does not rotate
Check the power take off coupling
b) The 2 ways valve “crane/outriggers”
is set on “outriggers”
Activate the lever of the two ways
valve.
c) The tank tap has been closed
Open the tap The pump can be
domaged.
d) The green light on the control block
and on the box located on the frame
are not going to on Main fuse blown. Replace it.
To check the main switch
f) The dump valve does not close Press the emergency button, if the
solenoid is powered (red light in the
connector on), replace it. If it is not
powered, check the system. If it
does not work in spite of pressing
the button, dismount and clean the
body of the valve or replace it.
g) An emergency stop button is
activated
Check all the buttons and reset the
work position
h) Boom lowering and boom extending
functions do not work and when
activated the green light goes off.
There is a interruption inside the
load limiting device circuit: verify
connections
and the pressure
switches
i) The crane when in overload
condition,
stays locked, no one
function is working.
One of the micro switches activated
by the control levers is broken or is
locked, verify the switches.
4.2 - THE CRANE MOVES BUT IT
IS NOT POWERED
a) The 2 ways valve “crane/outriggers”
hasn’t been pushed to the end of its
stroke.
Push the lever of the 2 way valves
until it reaches end stroke position.
b) The solenoid valve does not close
sufficiently
Proceed as in point 4.1.f