Maintenance work on the superstructure
8.10 Hydraulic system
16.08.2018
Maintenance manual 3 302 577 en 8 - 71
GMK7450
8.10.4 Checking for leaks
•
When the engine is running, carry out a visual inspection for leaks on the
hydraulic components (tank, pumps, drives, cylind
ers, control blocks,
valves, pipe and hose lines and connections).
• If leaks are detected, check the oil level and top up if necessary; à Check
the oil level
, P. 8 - 69.
After hydraulic components have been changed
• Bleed the hydraulic system; à Establishing an operational status, P. 8 - 84.
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 pipe
s and hose lines only when the system is depressurised.
O
Risk of environmental damage due to leaking consumables!
Immediately repair leaks in the hydraulic system or have them repaired to
ensure that no hydra
ulic oil escapes, seeps into the ground or reaches
waterways when the crane is used.