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10 Maintenance
Caution
Caution
Caution
Caution
26
Changing the hydraulic oil:
After 3200 operating hours hydraulic oil need to be changed.
To replace the hydraulic oil, proceed as follows:
1. Make sure that the hydraulic pressure is on zero level by checking the pressure
gauge. If necessary, discharge all pressure completely.
2. Place the hydraulic unit in a position higher than floor level (on a table for
example). Remove the cap on the tank.
3. Insert a flexible hose of a suitable length into the tank and discharge all oil by
creating an appropriate depression in the hose, for example: by using a suitably
sized syringe.
Do not create depression by sucking on the hose directly with the mouth
as this could lead to swallowing oil.
4. Waste oil must be collected in an appropriate container and eliminated in the
correct manner according to current legislation.
Do not dispose of waste oil in the environment: danger of pollution.
5. It is forbidden to pour off the oil by placing the unit on a slope. Proceed according
to the instructions above only.
Danger of tipping and falling.
6. Fill the tank with new oil up to the indicated level (max. 2 liters). This oil must
respect the required characteristics.
To replace the oil, it is strongly advisable to use oils with characteristics
that are the same or better than those described in the technical
characteristics. Make sure that oil replacement is performed in a clean
area. Take care not to contaminate the oil with water, dirt and/or foreign
matter. Any foreign residue present in the hydraulic oil will provoke
serious damage to the control unit and/or the welding machine.
Operating instructions ECOS 160/250/315
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