Hitachi ZAXIS 120-6 class Operator's Manual page 231

 Oil Tank Handrail Mirror (Front) (3)
Adjust the mirror to the specified position.
Adjust the mirror so that a range of at least 1 m from the
right side of the machine can be seen from the operator's
seat.
OPERATOR'S STATION
1-149
35 mm
45°
ZX130-6
35 mm
45°
ZX160LC-6
80 mm
25°
ZX210LC-6, 250LC-6,
350LC-6
80 mm
10°
ZX300LC-6
MDC1-01-557
MDC1-01-558
50°
MDC1-01-551
35°
MDC1-01-551