Eaton Hydrowa, Instruction Manual

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Instruction Manual
Page 16
Cylinder body
- Check every month for damages or cracks in the painting
- Repair any damages of painting immediately.
- Check every month for loose or damaged silicone sealant. In case of
damage repair this immediately. Only use water-resistant silicone sealant.
Eaton can advise which sealant to use for your application.
Rod eyes/Bottom eyes/trunnion
When a cylinder is provided with bearings, these bearings need to be greased
or inspected once a month. Metal-to-metal contact is fatal; also the temperature
will increase with metal-to-metal contact. The lifespan of bearings will decrease
rapidly when it’s not greased or oiled well.
Maintenance-free bearings should not be greased! Maintenance free spherical
ball bearings can be provided with protection-flanges with extra seals. The
chamber, between the bearing and the seals can be filled with grease, as an
extra barrier against water and dirt.
8.3 Oil maintenance
Changing oil and oil filters can be done by personnel who are certified in
changing oil of hydraulic systems. Otherwise it can be done by Eaton
personnel. Take an oil sample twice a year and check the cleanliness and
percentage of water in the oil (according EN 12937)
. The cleanliness of the oil
must be according NAS class maximum 7 (according ISO 4406).
Wear metal contaminants in the oil or water glycol must be kept below 1 ppm.