BA 348-01 * 2.0 * 34801b510.fm 5-13
Maintenance 5
5.7 Hydraulic system
Specific safety instructions regarding the hydraulic system
• 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
• Move all control levers of the hydraulic control valves several times
• Use the parking brake to park the machine safely and to prevent it rolling away
• If the hydraulic oil in the sight glass is cloudy, this indicates that water or air has
penetrated the hydraulic system. This can cause damage to the hydraulic pump!
☞Contact your dealer (service centre) immediately
Hydraulic oil escaping under high pressure can penetrate the skin and cause
serious injury.
☞Always consult a doctor immediately, even in case of minor wounds – otherwise
serious infections could set in!
Contaminated hydraulic oil, lack of oil or wrong hydraulic oil – danger of
severe damage to the hydraulic system!
☞Contact customer service if the hydraulic system filter is contaminated
with metal chippings. Otherwise, follow-on damage can result!
☞Always ensure cleanliness when handling hydraulic oil!
☞Always add hydraulic oil using the filling screen
–seeAdding hydraulic oil on page 5-16.
☞Only use authorized oils of the same type
–seeFluids and lubricants on page 5-39
☞Always add 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 reservoir!
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.
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