Komatsu ecot3 Operation And Maintenance Manual page 185

MACHINE OPERATIONS AND CONTROLS
Adjusting Angle of Camera
If the image on the monitor is not aligned correctly, remove cover
(1) and adjust the mounting angle (A) of the rear view camera.
Amount of adjustment of angle (A): Within a range of 35 degrees
to 80 degrees
1. When removing bolt cover (2), insert a flat-head screwdriver
etc. to the hole (3) of bolt cover (2) and push the inside claw to
remove.
2. Remove mounting bolts (4) of cover (1) from 2 places.
3. Remove cover (1).
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OPERATION