Komatsu ecot3 WA430-6 Operation & Maintenance Manual page 172

OPERATION
ADJUSTING MIRRORS
Be sure to adjust the mirrors before starting work. If they are not adjusted properly, you cannot secure the visibility and may be
injured or may injure someone seriously.
Mirrors A, B
Loosen bolt (1) of the mirror, then adjust the mirror to a position
which gives the best view from the operator's seat of the blind spot
at the left and right sides at the rear of the machine.
When installing the mirror, adjust so that it is possible to see any
person (or any object of a height of 1 m (3 ft 3 in) and diameter
of 30 cm (11.8 in)) at the rear left or right of the machine.
Mirrors C
Adjust so that is possible to see the ground around the machine at
a range of 1 m (3 ft 3 in) from the operator's seat.
If the movement of the mirror is stiff when adjusting it, loosen
bolt (2) of the mirror.
Install the mirrors at the position and dimensions shown in the
diagram. The values below are reference values for the range of
visibility.
Range of view (left): 2500 mm (8 ft 2 in)
Range of view (right): 2500 mm (8 ft 2 in)
Mirror A: Must be possible to see hatched portion (A)
Mirror B: Must be possible to see hatched portion (B)
Mirror C: Must be possible to see hatched portion (C)
NOTICE
Tighten the mirror mounting bolts securely that they will not be
loosened and the mirrors will not come off.
Tightening torque
Mirrors A, B :2.0 to 2.5Nm{0.2 to 0.25 kgm}
Mirrors C :8.8 to 9.8Nm{0.9 to 1.0 kgm}
If the tightening torque cannot be controlled, ask your Komatsu
distributor for tightening the bolts.
WARNING
OPERATION
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