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• If you have used the emergency lowering valve on
the top or bottom ram you must fully extend the
cylinder to fill the ram up with oil. You will have a
delay for several seconds the first time you try to
power the cylinder down as it has to fill up with oil. If
the oil tank is overflowing., just clean up the oil
spillage - the tank was overfilled !
• You must not be able to raise the outriggers with the booms up in the air. If you are, you
must check the boom limit switch and the diverter valve. If you are not able to lift up the
outriggers after lowering the booms. Check the same components
• If you use the emergency slew handle you must
operate the slew valve handle at the same time to
allow oil to circulate. When you turn a hydraulic
motor it becomes a pump and the oil must go
somewhere !
• You should not be able to lift the booms up in the air
unless the outriggers are all down and in full contact
with the ground. If you are you must adjust the
outrigger limit switch immediately. If you do go up
without having the outrigger correctly set you will fall
over! If you get a light leg during use, the machine will
stop and you will hear the audible alarm mounted on
the underside of the cage control box. Now you must
use the hand pump to come down and re-set the
outriggers. Check that the LED on the ground control
panel is working correctly. Each LED should only
come on when the outrigger is in contact with the
ground
• Check that the audible alarm is working. It should come
on when you have a light leg.
MAINTENANCE PROCEDURE
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