Doosan DX700LC Operation And Maintenance Manual page 185

Operation in Extreme Heat
Continuous operation of the machine in high temperatures may
cause the machine
transmission temperatures and stop machine for a cooling-off
period whenever necessary.
1. Make frequent inspections and services of the fan and
radiator. Check coolant level in radiator. Check grills and
radiator fins for accumulation of dust, sand and insects
which could block the cooling passages.
A. Formation of scale and rust in cooling system occurs
more rapidly in extremely high temperatures. Change
antifreeze each year to keep corrosion inhibitor at full
strength.
B. If necessary, flush cooling system periodically to keep
passage clear. Avoid use of water with a high alkali
content which increases scale and rust formation.
2. Check level of battery electrolyte daily. Keep electrolyte
above plates preventing damage to batteries. Use a slightly
weaker electrolyte solution in hot climates. Dilute 1.28
specific gravity electrolyte as issued to 1.20 - 1.24 specific
gravity readings at full charge. Recharge batteries whenever
they reach a 1.16 specific gravity reading. Batteries
self-discharge at a higher rate if left standing for long
periods at high temperatures. If machine is to stand for
several days, remove batteries and store in a cool place.
Do not store acid type storage batteries near stacks of
tires; the acid fumes have a harmful affect on rubber.
3. Service fuel system as directed in "Engine Fuel System"
Section 5, of this manual. Check for water content before
filling fuel tank. High temperatures and cooling off cause
condensation in storage drums.
4. Lubricate as specified in "Periodic Service Chart and
Table" Section 4, in this manual or Lubrication Decal on
the machine.
5. Do not park machine in sun for long periods of time. When
practical park machine under cover to protect it from sun,
dirt and dust.
A. Cover inactive machine with tarpaulin if no suitable
shelter is available. Protect engine compartment,
transmission and hydraulics from entrance of dust.
B. In hot, damp, climates corrosive action will occur on all
parts of the machine and will be accelerated during the
rainy season. Rust and paint blisters will appear on
metal surfaces and fungus growth on other surfaces.
C. Protect all unfinished, exposed surfaces with a film of
preservative lubricating oil. Protect cables and
terminals with ignition insulation compound. Apply
paint or suitable rust preventive to damaged surfaces
to protect them from rust and corrosion.
Operation
to overheat. Monitor
WARNING
engine and
OP001122
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