Doosan DX138LC Shop Manual page 38

In a work site where falling rocks can cause damage and
possibly crush personnel, or in a mining operation, be sure to
install the falling object protective structure (2, Figure 27).
Be sure to install any other additional protective structures
required for work site conditions.
When the falling object protective structure is installed, and the
front window needs to be cleaned, loosen the bolts marked with
2
an arrow. Be sure to tighten bolts when done.
FG000113
Figure 27
Operate Carefully on Snow, Ice and in Very
Cold Temperatures
In icy cold weather avoid sudden travel movements and stay
away from even slight slopes. The machine could skid off to one
side very easily.
Snow accumulation could hide or obscure potential hazards.
Use care while operating or while using the machine to clear
snow.
Warming up the engine for a short period may be necessary, to
avoid operating with sluggish or reduced working capacity. The
jolting shocks and impact loads caused by bumping or
bottoming the boom or attachment are more likely to cause
severe stress in very cold temperatures. Reducing work cycle
rate and workload may be necessary.
When the temperature rises, frozen road surfaces become soft,
and machine travel becomes unstable.
In cold weather, do not touch metal surfaces with your bare
hands. If you touch a metal surface in extremely cold weather,
your skin may freeze to the metal surface.
Track Excavator Safety SP002984
Page 31