Ammann 5932003, Operating Manual

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88 ARX 23-2 T4i, ARX 26-2 T4i
2.9.3 Machine operation during initial run
period
When putting a new machine into operation or during the first
30 hours after a complete overhaul, do not run the machine at
full power!
2.9.4 Machine operation at low temperatures
The compaction in the winter season depends on the content
of fine particles and water in the soil being compacted. With
the temperature dropping below the freezing point the soil
becomes more solid and harder to compact.
At the temperatures below 0 °C (32 °F) it is possible to compact
only dry soils (and loose stony materials), or carry out rapid
compaction of non-frozen materials (before the soil gets frozen).
Prepare the machine for operation at low temperatures:
- Check concentration of the engine coolant.
- Replace the engine oil with the oil recommended for the
range of ambient temperatures.
- Use hydraulic oil of the corresponding cinematic
viscosity.
- Use a winter diesel.
- Check the battery for charging.
The good condition of the battery is a precondition for good
starting under low temperatures. The machine can be used at
full power only after the operating fluids have been heated to
their operating temperatures.
2.9.5 Machine operation at higher
temperatures and humidity
The engine power output decreases with the increasing
temperature and air humidity. Considering that both of the
factors reducing the engine power are independent on each
other, it is possible to describe their impact as follows:
- Every 10 °C (18 °F) of the temperature rise means a power
drop by up to 4% (at a constant humidity);
- Every 10% of the relative humidity rise means a power
drop by up to 2% (at a constant temperature).
At outdoor temperatures when the hydraulic oil temperature is
constantly about 90 °C (194 °F), we recommend you to replace
the oil with the oil ISO VG 100 having the cinematic viscosity of
100 mm 2 /s at 40 °C (104 °F).
2.9.6 Machine operation at higher altitudes
With the increasing altitude, the engine power output decreases
as a result of the lower atmospheric pressure and specific
density of the incoming air.
The engine power depends on the environment, in which
the machine is working.