Other Equipment - Komatsu PC290LC-11 Operation & Maintenance Manual

EXPLANATION OF COMPONENTS
WORK EQUIPMENT CONTROL LEVER
The L.H. work equipment control lever is used to operate the
arm and upper structure.
Arm control
(a): Arm OUT
(b): Arm IN
Swing control
(c): Swing RIGHT
(d): Swing LEFT
N (NEUTRAL)
The upper structure and arm are held in position and do not move.
The R.H. work equipment control lever is used to operate the
boom and bucket.
Boom control
(a): Boom RAISE
(b): Boom LOWER
Bucket control
(c): Bucket DUMP
(d): Bucket CURL
N (NEUTRAL)
The boom and bucket are held in position and do not move.
ROOF WINDOW
The operator cab is provided with a fixed clear roof window for
improved visibility.
An optional guard can be provided for working in areas at risk
from falling objects.

OTHER EQUIPMENT

METHOD FOR OPENING AND CLOSING CAB FRONT WINDOW
• When opening or closing the front window, bottom window, or door, always set the lock lever to
LOCK position.
If the control lever or control pedal is touched by mistake when the lock lever is in FREE position, it
may cause serious personal injury or death.
• When opening or closing the front window, stop the machine on a level ground, lower the work
equipment to the ground, stop the engine, then perform the operation.
• When opening the front window, hold the handle securely with both hands to pull up, and do not
release your hands until the front window is locked by the automatic lock catch.
• When closing the front window, the window may move quicker under its own weight. Hold the han-
dles securely with both hands when closing it.
3-98
k k
WARNING
OPERATION