Manitowoc Grove GMK6300L Operating Manual page 616

Crane operation
11.1 Before operating the crane
H
11 - 4
16. – Switch off the slewing gear for 0° and 180° working positions –
symbol (1) is red;
– Switch off houselock for other working positions – symbol (2) is red;
à
p. 11 - 17.
17. Check the electrical system for correct operation;
18. Check temperature of the hydraulic oil – preheat hydraulic oil if neces-
à
Preheating the hydraulic oil , p. 11 - 13.
sary;
19. Adjust the brightness on the ECOS and RCL displays as required;
à
p. 10 - 11.
Additional information on inspections during crane operation, on permissi-
ble working positions and on how to operate the individual power units;
à
Crane operation with main boom , p. 11 - 51.
à
p. 11 - 100.
3 112 xxx en
à
p. 11 - 6.
Operating Manual GMK6300L