Komatsu PC138US-11 Operation & Maintenance Manual page 291

Hydraulic excavator
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OPERATION
Always observe the following regarding the ramps and trailer platform.
Use ramps with ample width, length, thickness, and strength and install them with a maximum slope
of 15 deg.
When using piled soil, compact the piled soil fully to prevent the slope face from collapsing.
Clean the machine tracks and ramps before starting in order to prevent the machine from slipping
on the ramps.
There is danger of the machine slipping if there is water, snow, grease, oil, or ice on the ramp sur-
face.
PROCEDURES FOR LOADING MACHINE
Load on a firm and level ground.
Maintain a safe distance from the road shoulder
1.
Apply the trailer brakes securely, then put chocks (1) under
the tires to prevent the trailer from moving.
2.
Set right and left ramps (2) parallel to each other and
equally spaced to the right and left of center (3) of the trail-
er. Make installation angle (4) at maximum of 15 deg.
If the ramps bend a large amount under the weight of the
machine, put blocks under the ramps to prevent them from
bending.
3.
Push travel speed selector switch (5) to set the travel
speed to low ("Lo" lights up).
The travel speed ("Lo", "Hi") is displayed on travel speed
display (6).
4.
Turn auto-deceleration switch (7) OFF and operate the fuel
control dial to set the engine to low speed.
Each time auto-deceleration switch (7) is pressed, it
switches OFF to ON to OFF in turn.
When auto-deceleration switch (7) is turned off, the auto-
deceleration pilot lamp (8) goes out.
WARNING
k
WENAM00111
TRANSPORTATION
3-221

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