Ingersoll-Rand DOOSAN HP375WCU, Operation & Maintenance Manual, Page: 45 / 73

Operating Instructions Operation & Maintenance Manual
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6. Open the service valve(s) to ensure that all pressure is relieved from the
system. Close the service valve(s).
7.
CAUTION
!
Do not operate the machine with the canopy/doors in the open position
as this may cause overheating and operators to be exposed to high noise
levels.
8. Check the radiator coolant level (with the unit level).
Check the air filter restriction indicator(s). Refer to the MAINTENANCE section of this manual.
When starting or operating the machine in temperatures below or approaching 0°C (32°F),
ensure that the operation of the regulation system, the unloader valve, the safety valve, and
the engine are not impaired by ice or snow, and that all inlet and outlet pipes and ducts are
clear of ice and snow.