• Always observe the regulations for jobsite and environmental standards.
This machine does not contain asbestos, but any part which is not the genuine part, it has risk of containing
asbestos. Always use Komatsu genuine parts.
START ENGINE
USE WARNING TAGS
If there is a "DANGER! Do NOT operate!" warning tag dis-
played, it means that someone is performing inspection and
maintenance of the machine. If the warning tag is ignored and
the machine is operated, the person performing inspection or
maintenance may be caught in the rotating parts or moving
parts. It is dangerous and may cause serious personal injury or
death. Do not start the engine or touch the levers.
CHECKS AND ADJUSTMENT BEFORE STARTING ENGINE
Perform the following checks before starting the engine at the beginning of the day's work to ensure that there is
no problem with the operation of the machine. If these checks are not performed properly, problems may occur
with the operation of the machine, and there is a danger which may lead to serious personal injury or death.
• Remove all dirt from the surface of the window glass to ensure a good view.
• Perform the walk-around check securely.
• Remove all dirt from the surface of the lens of the headlamps and working lamps, and check that they light
up correctly.
• Check the coolant level, fuel level, and oil level in engine oil pan, check for clogging of the air cleaner, and
check for damage to the electric wiring.
• Check that there is no mud or dust accumulated around the movable parts of any pedals, and check that
the pedals work properly.
• Adjust the operator's seat to a position for easier operation. Check that there is no damage or wear to the
seat belt or mounting clamps.
• Check that the gauges and camera view work properly, check the angle of the mirror, and check that the
control levers are all at NEUTRAL position.
SAFETY
PRECAUTIONS FOR OPERATION
2-21
Summary of Contents for PC1250-11
Page 2: ......
Page 11: ...Do not repeatedly handle and lift loads FOREWORD VIBRATION LEVELS 1 9...
Page 24: ......
Page 66: ......
Page 377: ...Boom d Left side e Right side f Head side g Foot side MAINTENANCE MAINTENANCE PROCEDURE 4 61...
Page 378: ...Arm h Left side i Right side MAINTENANCE PROCEDURE MAINTENANCE 4 62...
Page 400: ......
Page 401: ...SPECIFICATIONS 5 1...
Page 406: ......
Page 435: ...REPLACEMENT PARTS 7 1...
Page 444: ......