Komatsu PC290LC-11 Operation & Maintenance Manual page 232

MACHINE OPERATIONS AND CONTROLS
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 "PROCEDURE FOR ADJUSTING REGULAR POSITION OF MACHINE RIGHT
FRONT MIRROR (B) (3-160)".
PROCEDURE FOR ADJUSTING REGULAR POSITION OF MACHINE RIGHT
FRONT MIRROR (B)
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): 10 mm
Mounting position (4): 16 mm
Mounting angle (5): 71 °
Mounting angle (6): 74 °
Tightening torque of mounting bolt (7): 6.0 to 7.0 Nm 0.61 to
0.71 kgm
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.
3-160
k k
CAUTION
OPERATION