Komatsu D475A-5E0 Operation & Maintenance Manual page 164

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OPERATION
ADJUST ARMREST (LEFT)
The armrest on the left side of the operator's compartment can be adjusted to 2 heights.
1. When adjusting height of both armrest and case
It is possible to effortlessly adjust the standard height up 50
mm (2 in) or down 50 mm (2 in).
The joystick (steering, directional and gear shift lever) 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 UP
Turn COUNTERCLOCKWISE to move DOWN
2. When adjusting height of armrest only
It is possible to effortlessly adjust up to 36 mm (1.4 in) upward
from the armrest and case contact surface.
The joystick does not move.
Open the armrest, and turn knob (2) counterclockwise to adjust
the height.
Only the armrest will move up. After adjusting it to the desired
height, close the armrest.
3. By carefully adjusting to match the operator's physique, it is
possible to operate the travel lever correctly (with fine control
and smooth steering) and comfortably (with little fatigue), so
adjust the armrest as follows:
1) Sit in the operator's seat, grip the travel lever, and turn
up-down adjustment knob (1) to adjust the height of the
console assembly to a position where the elbow matches
the top surface of the armrest as shown in the diagram on
the right.
2) Next, operate the travel lever to the left and right, and turn
knob (2) to adjust the height of the armrest to match the
thickness of the operator's arm so that it is possible to
operate smoothly to the left and right using the elbow and
the support at the front.
OPERATION
3 - 111

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