Maintenance work on the superstructure
8.6 Hydraulic system
03.11.2017
Maintenance manual 3 302 574 en 8 - 33
GMK3060
8.6 Hydraulic system
8.6.1 Checking the hydraulic hoses
The inspection work is described in section Checking the hydraulic hoses,
p. 7 - 84.
8.6.2 Checking for leaks
• When the engine is running, carry out a visual inspection for leaks on the
hydraulic components of the superstructure (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 Check the oil level, p. 7 - 83.
After hydraulic components have been changed
• Bleed the hydraulic system.
If damage cannot be rectified immediately or further damage is likely
• Notify Manitowoc Crane Care or an authorised GROVE dealer or your repair
crew.
O
Risk of environmental damage due to leaking consumables!
Always let consumables drain into suitable receptacles. Wipe up any
consumables that escape.
Stor
e/dispose of consumables and any soaked equipment properly.
Ask about the applicable regulations.
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 leaks in the hydraulic system or have them repaired to
ensure that no hydraulic oil escapes, seeps into the ground or reaches
waterways when the crane is used.
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