Komatsu Galeo PC800LC-8, Operation & Maintenance Manual, Page: 100 / 318

DETAILED CONTROLS AND GAUGES
OPERATION
3-36
Swing Lock Switch
WARNING
q
When the machine is traveling under its own power, or when the swing is not being operated, always
set the switch to the ON position (a).
q
On slopes, even when the swing lock switch is at the ON position (a), the weight of the work equip-
ment may cause the upper structure to swing if the swing control lever is operated in the downhill
direction.
Switch (5) is used to lock the upper structure so it cannot
swing.
(a) ON position (actuated): The swing lock is always applied,
and the upper structure will not swing even if the swing is oper-
ated. In this condition, the swing lock lamp lights up.
(b) OFF position (canceled): The swing lock is applied only
when all the work equipment control levers are in neutral; when
any work equipment control lever is operated, the swing lock is
canceled.
The swing lock is actuated approx. 5 seconds after all the con-
trol levers are placed in the neutral position.