Manitowoc Grove GMK6300L-1

Maintenance work on the superstructure
8.9 Hydraulic system
8 - 72 3 302 719 en Maintenance manual
GMK6300L-1
13.02.2018
There is a gauge port (1) on the pump (2).
When a hydraulic function is run, e.g.
tilting
the crane cab
, oil can then be taken at the
gauge port.
Taking oil samples
• Clean the gauge port and connect the hose (1)
to the pump (3);
à Connecting the hose,
p. 7 - 87.
• Put the hose end (2) into the receptacle (4).
• Start the engine.
• Tilt the crane cab.
• Allow 2 litres (0.5 gal) of oil to flow into
the receptacle.
• Switch the engine off and put the hose
end (2) into the sample container (5).
• Start the engine.
• Tilt the crane cab.
• Allow 0.3 litres (0.08 gal) of oil to flow
into the sample container.
• Switch off the engine.
• Remove the hose; à Disconnecting the hose, p. 7 - 88.
• Seal the sample container and dispatch it; à Dispatch the oil sample to the
laboratory
, p. 7 - 89.
• Determine the quality of the oil; à Determining the quality of the oil,
p. 7 - 89.