Komatsu PC290LC-11 Operation & Maintenance Manual page 322

TRANSPORTATION
7.
Remove revolving lamp bracket (C) from fixing claw (F) of
base bracket (E).
METHOD FOR INSTALLING REVOLVING LAMP
1.
Hold grip (G) and turn it counterclockwise, seeing it from
the rear of the machine.
At this time, insert revolving lamp bracket (C) into the re-
volving lamp fixing claw side of base bracket (E), and in-
stall it.
2.
Install the hook of lock (D) to base bracket (E).
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OPERATION