5-14 BA 35101/02/03 EN – Edition 1.0 * 35101_02_03b510.fm
Maintenance
5.7 Hydraulic system
Safety instructions regarding maintenance of the hydraulic system
Danger of burns! Do not carry out maintenance work on a hot engine and
hydraulic system!
☞ Wait at least 10 minutes after stopping the engine
☞ Wear protective gloves and clothing during maintenance work
Hydraulic oil escaping under high pressure can penetrate the skin and cause
serious injuries.
☞ Always consult a doctor immediately even if the wound seems insignificant
– otherwise serious infections could set in!
• Release the pressure in all lines carrying hydraulic oil prior to any maintenance and
repair work. To do this:
• Lower all hydraulically controlled attachments to the ground
• Stop the engine and apply the parking brake
• Move all control levers of the hydraulic control valves several times
• Always fill in hydraulic oil using the filling screen!–seeFilling up hydraulic oil on
page 5-16
• Only use authorised oils of the same type –seeFluids and lubricants on page 5-43
• Always fill in hydraulic oil before the level gets too low
• If the hydraulic system is filled with biodegradable oil, then only use biodegradable oil of
the same type for filling up – observe the sticker on the hydraulic oil tank!
• Contact customer service if the hydraulic system filter is contaminated with metal
chippings. Otherwise, follow-on damage can result!
• Collect drained hydraulic oil and biodegradable oil in a suitable container!
• Dispose of drained oil and used filters by an ecologically safe method. Always contact
the relevant authorities or commercial establishments in charge of oil disposal before
disposing of biodegradable oil.
If the hydraulic oil in the sight glass is cloudy, this indicates that water or air
has penetrated the hydraulic system.
Contaminated hydraulic oil, lack of oil or wrong hydraulic oil – danger of
severe damage to the hydraulic system!
☞ Have the hydraulic oil immediately replaced by an authorised workshop
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