Other Equipment - Komatsu WA480-8 Operation & Maintenance Manual

OPERATION
BOOM CONTROL LEVER
The boom control lever is used to control the boom.
NOTICE
Do not use "FLOAT" position when lowering the bucket.
Use "FLOAT" when "LEVELING WORK (3-209)".
Position (a): RAISE
If the boom control lever is pulled further from "RAISE" position,
the lever stops in that position.
When the remote boom positioner is enabled, the boom stops
at the preset position and the lever returns to "HOLD" position
at the same time.
When the remote boom positioner is disabled, the boom stops
at the highest position and the lever returns to "HOLD" position
at the same time.
Position (b): HOLD
The boom remains in the position where it was stopped.
Position (c): LOWER
Position (d): FLOAT
The boom moves freely under external force. If the boom con-
trol lever is turned to "FLOAT" position, the lever stops in that
position.
When the remote boom positioner is enabled, the boom stops at the preset position and the lever returns to
"HOLD" position at the same time.
When the remote positioner is not set, the lever remains in "FLOAT" position and does not return.

OTHER EQUIPMENT

METHOD FOR OPENING AND CLOSING CAB DOOR
k k
• Always check that the cab door is locked in position,
both when it is open and when it is closed.
• Always place the machine on a level ground when
opening or closing the door.
Avoid opening or closing the door on a slope, since
there is a danger that the operating effort may sudden-
ly change.
• Hold the door handle and knob whenever opening or
closing the door.
• Be careful not to get your hands caught between the
front pillar or center pillar.
• When there is anyone inside the cab, always call out a
warning before opening or closing the door.
CAUTION
EXPLANATION OF COMPONENTS
3-111