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Komatsu D31EX-21 - Page 159

Komatsu D31EX-21
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OPERATION TRANSPORTATION
3-107
UNLOADING WORK
1. Load and unload on firm level ground only. Maintain a safe distance from the edge of a road.
2. Properly apply the brakes on the trailer and put blocks
under the tires to ensure that the trailer does not move.
Make the slope of the ramps a maximum of 15°.
3. Remove the chains and wire ropes fastening the machine.
4. Start the engine.
In a cold weather, carry out an engine warming-up run, referring to the section, “STARTING IN COLD
WEATHER (3-82)“, in this manual.
5. Set the safety lock lever to the FREE position.
6. Raise the blade.
7. Set parking lever to the FREE position
8. Use the variable mode to set the speed range to 1st or
less, and travel slowly.
9. Set the travel direction toward the ramps and drive slowly.
10. The center of gravity of the machine shifts suddenly at the
border between the ramps and trailer, and the machine is
unbalanced and becomes dangerous. Accordingly, pass
the border slowly.
11. Drive down the ramps slowly and carefully until the
machine leaves the ramps perfectly.
Blocks
Block
Max. 15°
Distance
between ramps
Ramp
Free
Lock
Free
Lock

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