Maintenance work on the superstructure
8.9 Hydraulic system
13.02.2018
Maintenance manual 3 302 719 en 8 - 67
GMK6300L-1
8.9.4 Checking for leaks
• When the engine is running, carry out a visual inspection for leaks on the
hydraulic components (tank, pumps, drives, cylinders, control blocks,
valves, pipe and hose lines and connections).
• If leaks are detected, check the oil level and top up if necessary;
à Checking the oil level, p. 8 - 65.
After hydraulic components have been changed
• Bleed the hydraulic system; à Establishing the operating conditions,
p. 8 - 79.
If damage cannot be rectified immediately or further damage is likely
• Notify Manitowoc Crane Care or an authorised GROVE dealer or your
repair crew.
G
Risk of accidents from hydraulic oil spraying out.
Never tighten any leaking connections when the system is under pressure.
Change pipes and hose lines only when the system is depressurised.
O
Risk of environmental damage due to leaking consumables.
Immediately repair or have leakages in the hydraulic system repaired to
ensure that no hydraulic oil escapes, seeps into the ground or reaches
waterways when the crane is being used.
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