Komatsu PC490-11, Инструкция по установке и эксплуатации

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If the mirror is adjusted by loosening the mounting bolts, be sure to adjust the mirror to its regular position. For
the adjustment method, see the “Procedure for adjusting regular position of machine right front mirror (B)”.
PROCEDURE FOR ADJUSTING REGULAR POSITION OF MACHINE RIGHT
FRONT MIRROR (B)
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CAUTION
To prevent the machine from moving during the work, make sure that the following conditions are met
before starting the work.
• The machine is placed on a firm, level ground.
• The work equipment is lowered to the ground in secure posture.
• The lock lever is in LOCK position.
• The engine is stopped.
When returning the mirror to its regular position, perform the
following adjustment.
Adjust mirror (1).
Tightening torque of mounting bolt (2): 6.0 to 7.0 Nm {0.61 to 0.71 kgm}
Mounting position (3): 120 mm
Mounting angle (4): 30 °
NOTICE
• Tighten the right and left bolts of each bracket alter-
nately so that their right and left clearances (R) and (L)
become equal.
• If the mirror and stay mounting bolts are tightened ex-
cessively, the bracket may be damaged. Be sure to
tighten bolts to the specified torque.
MACHINE OPERATIONS AND CONTROLS OPERATION
3-164