Manitowoc Grove GMK 5200-1 Maintenance Manual page 241

Check the
following
Maintenance manual
GMK5200-1
When checking the slewing gear brake you must perform the slewing move-
ment against the slewing gear brake.
•
Start the engine and switch on the slewing gear.
•
Open the CCS menu Hydraulic pressure .
Display (1) will show the pressure in the slewing gear's hydraulic circuit.
•
Move the control lever slowly to the stop and wait until the pressure in the
hydraulic circuit has risen to approx. 200 bar (approx. 2,900 psi).
– If the superstructure still does not slew, the braking force of the slew-
ing gear brake is adequate.
– If the superstructure does slew, the slewing gear brake is defective and
must be repaired immediately by
ised GROVE dealer.
•
Switch off the engine.
•
Remove the coil (1) from the valve Y 2304.
The slewing gear brake will now not be
released when the slewing gear is switched
on.
Manitowoc Crane Care
3 302 746 en
Maintenance work on the superstructure
8.4 Slewing gear
or an author-
s
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