Operating The Auxiliary Ports; Activating The Auxiliary Port Function - Kubota U48-4 Operation Instruction Manual

Operating the auxiliary ports

Implements are operated using the auxiliary ports.
Only implements approved by KUBOTA may be used. The implements must be operated in accord-
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ance with the operating instructions supplied with them.
With the use of a breaker or another attachment for demolition work, where material (e.g. asphalt) is
removed and can uncontrollably sputter away, personal protective equipment is absolutely to be worn
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(safety shoes, safety helmet, eye protection, ear protection and if necessary facial mask). The use of
a gravel guard (front protective grid) is recommended. For excavation work with a cab, the front win-
dow must be closed, in addition. For demolition (according to EN 474-1, Annex G), e.g. tearing down
walls, the corresponding protective equipment is required (e.g. gravel guard).
For auxiliary port specifications, see the "Specifications" section" (page 40).
Make sure that, before carrying out the activities in the auxiliary port connectors, the pressure relief
of the hydraulic equipment (page 95) and the auxiliary port connectors (page 95) has been carried
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out. Depending on the operation setting, the return change valve has to be set to the appropriate po-
sition (page 94).
The auxiliary ports may only be activated when an implement is attached.
If the auxiliary ports have not been in use over a long period of time, dirt may have accumulated on
the pipe connections. Before installing the implement, drain approx. 0.1 L of hydraulic oil at each port.
Catch the drained hydraulic oil in a container and discard it in accordance with the valid environmen-
tal regulations.
Start the engine (page 71) and keep it at idle speed until the operating temperature has been reached.
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Activating the auxiliary port function

The auxiliary port is used for hydraulic implements, such as a breaker. You can set the flow rate prior to operating
auxiliary port. Refer to the section for the flow rate setting (page 90}) for details.
Switch on the auxiliary port using the auxiliary port enable switch
(1). This switch is active when the left control console is lowered and
the starter switch is in the RUN position. When the auxiliary port is
switched on, the indicator Auxiliary port (2) comes on or flashes.
Using this switch, you can also set the operation settings.
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Operation