Komatsu D155A-6 Operation & Maintenance Manual page 217

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TRANSPORTATION
UNLOADING
1. Load and unload on firm level ground only. Maintain a safe distance from the edge of a road.
2. Apply the trailer brakes securely, then put blocks (1) under the
tires to prevent the trailer from moving.
Set left and right ramps (2) parallel to each other and
equally spaced to the left and right of center (3) of the trailer.
Make angle of installation (4) a maximum of 15°. If the
ramps bend a large amount under the weight of the
machine, put blocks under the ramps to prevent them from
bending.
3. Remove the chains and wire ropes fastening the machine.
4. Start the engine.
Warm the engine up fully.
5. Set main work equipment lock lever to FREE position (F), and
raise the work equipment.
(When transporting with work equipment installed)
6. Set parking brake lever to the FREE position (F).
7. Set the transmission in the 1st gear and run the engine at low
idle.
8. Set the travel direction toward the ramps and drive slowly.
9. 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.
10. Drive down the ramps slowly and carefully until the machine
leaves the ramps perfectly.
3 - 166
OPERATION

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