Manitowoc Grove GMK 5250L Maintenance Manual page 51

Maintenance work on the SUPERSTRUCTURE:
every 12 months/after 1,000 oper. hrs.
Hoists
– Changing the oil/checking the oil
Slewing gear
– Changing the oil/checking the oil
Slewing bearing
– Lubricating the locking of turntable
Hydraulic system
– Changing the ventilation filter
– Pressure accumulator – checking the gas pressure
– Taking oil samples:
depending on the oil sample test results:
– Changing the hydraulic oil
– Changing the hydraulic oil filter
Main boom
– Checking the locking system
Hook blocks
– Greasing
Air conditioning system
– Checking the entire air conditioning system
– Changing the pollen filter
Other maintenance work
– Lubricating the crane cab door
– Lubricating the step
– Lubricating the connecting and socket pins
– Renewing the corrosion protection
Maintenance manual
GMK5250L
3 302 744 en
Maintenance overview
5.2 Maintenance plans
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