Komatsu PC118MR-8, Operation And Maintenance Manual

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FUNCTIONING
USING THE MACHINE IN THE COLD SEASON
3-185
When the ambient temperature drops, the capacity of the battery decreases accordingly. If the battery charge is
low, the electrolyte may freeze. Keep the battery charge level as high as possible and insulate the battery against
excessively low temperatures, in such a way as to be able to start the machine easily when starting work in the
morning.
REMARK
Measure the coolant weight density and check the battery charge percentage, using the following table:
Since the capacity of the battery decreases considerably at low temperatures, cover the battery or remove it from
the machine, store it in a warm place and install it again the following morning.
If the electrolyte level is low, add distilled water in the morning before starting work. Do not add electrolyte in the
evening at the end of work, since it may freeze during the night.
Battery with charge indicator
REMARK
A visual gauge indicates the battery charge level in different colours, according to the table positioned beside the
gauge:
q
Green: optimal charge
q
Gray: the battery needs recharging
q
White: the battery must be replaced.
CHARGE PERCENTAGE
FLUID TEMPERATURE
20°C 0°C -10°C -20°C
100% 1.28 1.29 1.30 1.31
90% 1.26 1.27 1.28 1.29
80% 1.24 1.25 1.26 1.27
75% 1.23 1.24 1.25 1.26
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