Manitowoc GROVE GMK7450 - Hoist Ropes Maintenance

Maintenance work on the superstructure
8.12 Hoist ropes
16.08.2018
Maintenance manual 3 302 577 en 8 - 97
GMK7450
8.12 Hoist ropes
8.12.1 Checking the winding
Prerequisites – The hoist mirrors must be folded out; à Operating manual.
– Camera monitoring (additional equipment) of the hoists from the crane
cab must be switched on
à Operating manual.
– One hook block must be reeved;
à Operating manual.
– The main boom must be raised to about 30°;
à Operating manual.
– The engine must be started.
Checking
Always check the entire length of the winding
of the ropes (1).
• Slowly perform the Lower movement until
the rope has moved over the complete
width (X) of the rope drum.
– The rope must be evenly wound.
–
The ro
pe turns on the drum must be
evenly spaced at a distance of 0 to 2 mm
(0 to 0.08 in).
– The cross-over points must be at an angle
of approx. 180° to each other.
H
The ropes of the top layer lie over the ropes of the bottom layer at the cross-
over points.
D
G
Risk of accidents due to rotating rope drum!
Keep away from the rope drum while it is turning.
This will prevent your limbs from being drawn in and getting crushed.