Komatsu PC490-11, Installation And Instruction Manual

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2.
Push up lock (A) in the front centre of the roof window and
check that the lock is released. Then hold handle (B) and
push up the roof window.
When closing
Hold grip (B), lower the roof window, and apply lock (A). If the lock cannot be applied, “open” the roof window,
then pull it in again and apply the lock.
METHOD FOR OPENING AND CLOSING CAB FRONT WINDOW
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WARNING
• 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.
It is possible to stow the front window (upper side) in the roof of the operator's compartment.
When opening
1.
Stop the machine on a level ground, lower the work equip-
ment to the ground, then stop the engine.
Set lock lever (1) securely to LOCK position (L).
2.
Check that the wiper blade is stowed in the right stay.
EXPLANATION OF COMPONENTS OPERATION
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