Avant e5
88
Problem
Possible cause
Remedy
Drive works erratically and boom
movements do not work at all,
electric motors run
Low hydraulic oil level
Check hydraulic oil level and condition.
Drive and boom movements work
erratically, motors run smoothly
Air in hydraulic components
Move boom and steering cylinders and hold at
each extreme position to de-air the system.
Check hydraulic oil level and condition.
Hydraulic oil pushed out from
hydraulic oil filler cap, hydraulic
oil foams
Leak in hydraulic suction line
connecting tank and hydraulic pumps
allows air to sucked in
Replace suction hoses.
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