Komatsu D31EX-21, Operation & Maintenance Manual, Page: 38 / 256

PRECAUTIONS FOR OPERATION
SAFETY
2-20
PRECAUTIONS IN COLD AREAS
q
Carry out the warming-up operation thoroughly. If the machine is not thoroughly warmed up before the control
levers are operated, the reaction of the machine will be slow, and this may lead to unexpected accidents.
q
If the battery electrolyte is frozen, do not charge the battery or start the engine with a different power source.
There is a hazard that this will ignite the battery and cause the battery to explode.
Before charging or starting the engine with a different power source, melt the battery electrolyte and check that
there is no leakage of electrolyte before starting.