Manitowoc GROVE GMK7450 - Hydraulic System Maintenance (Superstructure)

Maintenance work on the superstructure
8.10 Hydraulic system
16.08.2018
Maintenance manual 3 302 577 en 8 - 69
GMK7450
8.10 Hydraulic system
8.10.1 Check the oil level
Prerequisites – The truck crane must be level and in on-road mode; à Operating manual.
– The telescoping cylinder must be locked in telescopic section 1
à Operating manual.
– The truck crane must be standing on a level surface.
– The engine must not be running and must be secured against unauthor-
ised use;
à P. 2 - 3.
Check the oil level
For truck cranes with a Mega-Wing-Lift
• Check whether oil is visible in the middle of
the sight glass (1).
For truck cranes without a Mega-Wing-Lift
• Check whether oil is visible in the middle of
the sight glass (2).
If the oil level is too low
• Top up with oil; à P. 8 - 83.
O
Risk of environmental damage due to leaking consumables!
Always let consumables drain into suitable recept
acles. Wipe up any con-
sumables that escape.
Store/dispose of consumables and any soaked equipment properly.
Ask about the applicable regulations.
D
S
Risk of damage to the hydraulic system!
Cleanliness is imperative when handling hydraulic oil!
Even fresh hydraulic oil must be filtered before it is added to the tank.