Komatsu D155A-6 Operation & Maintenance Manual page 164

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OPERATION
ADJUST ARMREST
The height of the armrest on the left and right sides of the operator's seat can be adjusted to 3 positions. After
adjusting the operator's seat, adjust the armrest to a suitable height.
ADJUST ARMREST (RIGHT)
Armrest (1) on the right side of the operator's seat can be adjusted in 3 stages: up 30 mm (1.2 in), standard height
(center), or down 25 mm (1.0 in).
1. Loosen knob (2) (2 places).
2. Move the armrest on the operator's seat to the front, then align
the position of the 3 holes {high (H), middle (M), low (L)}.
3. Tighten knob (2) securely.
ADJUST ARMREST (LEFT)
The armrest on the left side of the operator's compartment can be adjusted to 2 heights.
It is possible to adjust the standard height up 30 mm (1.2 in) or down 30 mm (1.2 in) gradually.
The joystick moves as a unit.
Turn up/down left adjustment knob (1) to adjust the height. Turn
the knob to adjust as follows.
Turn CLOCKWISE to move DOWN
Turn COUNTERCLOCKWISE to move UP
OPERATION
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