Komatsu PC490-11, Installation And Instruction Manual

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NOTICE
The maximum towing capacity for this machine is 303030 N {30900 kg} .
Do not tow any load greater than this.
• If the machine sinks in mud and cannot get out under its
own power, or if the machine tows a heavy object, use a
wire rope as shown in the figure on the right.
• Place pieces of wood between the wire ropes and the ma-
chine to prevent damage to the ropes and the machine.
• Hold the wire rope level and set it straight to the track
frame.
• When towing a machine, travel at a speed of less than
1 km/h {0.62 MPH} for a distance of only a few meters to a
place that is suitable for performing repairs.
Perform this only in an emergency.
PRECAUTIONS FOR USING LIGHTWEIGHT TOWING HOLE
k k
WARNING
• Always use the correct towing equipment and towing method. Any mistake in the selection of the
wire rope or drawbar or the method of towing a disabled machine and being towed may lead to seri-
ous personal injury or death. Select the appropriate tools and methods.
• The shackle must always be used.
• Hold the wire rope level and set it straight to the track frame.
• Move the machine slowly and be careful not to apply any sudden load to the wire rope.
• Do not use the tie-down holes for towing the machine.
There is a hole in the track frame to fit the shackle when towing
light objects.
Permissible towing load: Max. 154000 N {16000 kg}
PRECAUTIONS FOR SEVERE JOB CONDITION
• When performing digging operations in water, if the work equipment mounting pin goes into the water, per-
form greasing every time the operation is performed.
• For heavy-duty operations and deep digging, perform greasing of the work equipment mounting pins every
time before operation.
After greasing, operate the boom, arm and bucket several times, then grease again.
OPERATION TROUBLES AND ACTIONS
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