TRANSPORTATION OPERATION LOADING AND UNLOADING WITH TRAILER 3 WARNING q Always turn the auto-deceleration switch OFF (cancel) during loading and unloading operations. If the auto-deceleration switch is left ON, the machine may suddenly start moving. q When loading or unloading the machine on a trailer, always travel at low speed. Do not operate the travel speed selector switch. q Run the engine at low idling, set to low speed, and operate the machine slowly when loading or unload- ing. q Do not carry out loading or unloading operations dur- ing the automatic warming-up operation. If the automatic warming-up operation is canceled before completion, the travel speed may suddenly change.
q Select firm, level ground when loading or unloading the machine. Maintain a safe distance from the edge of the road. q Use ramps with ample width, length, thickness, and strength and install them at a maximum slope of 15°. When using piled soil, compact the piled soil fully and prevent the slope face from collapsing. q Remove all mud and dirt from the machine tracks before starting in order to prevent the machine from slipping on the ramps. Be sure that the ramp surface is clean and free of water, snow, grease, oil, or ice. q Never correct your steering on the ramps. There is a hazard that the machine may turn over.
If necessary, drive off the ramps, correct the direction, then enter the ramps again. q It is dangerous to use the work equipment for loading and unloading operations. q When on the ramps, do not operate any lever except the travel lever. q The center of gravity of the machine will change sud- denly at the joint between the ramps and the track or trailer, and there is a hazard of the machine losing its balance. Travel slowly over this point. q When swinging the upper structure on the trailer, the trailer is unstable, so pull in the work equipment and swing slowly. When loading or unloading, always use ramps or a platform and carry out the operation as follows. 3-108