Volvo A25E - Electrical System

Service and maintenance
128 Electrical system
Electrical system
Check lights and control lamps daily.
Battery disconnect switch
IMPORTANT! The battery disconnect switch must not be
turned off, when the engine is running.
The battery disconnect switch (A) is located on the cab's left side
under the step. After finishing work for the day, the battery
disconnect switch should be turned off.
Batteries
The batteries are connected in series and positioned on the left
side of the machine.
Batteries, checking electrolyte level
Check the electrolyte level every 500 hours. At temperatures
above approx. +20 °C check more often.
The electrolyte level should be approx. 10 mm above the cell
plates.
Filling
1 Fill with distilled water.
2 Operate the machine after topping up, so that the water is
mixed with the battery electrolyte. This is particularly important
in cold weather.
3 Check that the cable terminals and pole studs are clean, well
tightened, and coated with petroleum jelly or similar.
Checking state of charging
The state of charge of the batteries is checked with a hydrometer.
When there is risk of freezing, it is particularly important that the
batteries do not become discharged since the electrolyte in a flat
battery may freeze and thus destroy the battery.
Operating with faulty batteries is not allowed.
A
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1
A
A Battery disconnect switch