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11.4.2 Maintenance on the hydrostatic pump
11.4.2.1
Changing hydrostatic oil and oil filter
Even though the hydraulic circuit is closed, the hydraulic oil will get dirty. This dirt is
continuously filtered via a hydraulic filter. When this filter becomes dirty, the oil flow will
reduce and cavities may occur. It is therefore advisable to change the oil and filter every 500
hours. For this, proceed as follows:
• Place the machine on a flat ground so that the engine plate is horizontal..
• Turn the engine off and take the key out of the ignition.
• Have a collection reservoir ready with a volume of at least 6l.
• Open the filler cap on top of the tank.
• Now unscrew the pump’s drainage plug on the base of the machine without undoing it
completely. Use a 19 mm wrench.
• Empty the full contents from the engine. Make sure that all oil is properly collected in the
receptacle.
• Once emptied, the oil filter can be replaced. Undo the 2 clamps and remove the filter.
Replace with a new one.
Caution:
Check to ensure that the new filter has been installed correctly, according to the
flow direction.
• After replacing the filter, screw back the drainage plug
• Clean away the spillt oil with a clean cloth.
Hydrostatic
filter
Klem
Oil drainage SLM19