Hyundai 12ESH Operation Manual page 21

⑵ Precautions before maintenance:
9.2 Inspections and Maintenance before starting a new truck
In order to conform to relative industrial regulations and ensure absolute safety of truck during transportation,
it is probable that the battery is not equipped with electrolyte (except for inland sales) before starting for the first
time.
When the truck leaves the factory, the prepared electrolyte is with it. Before first use, pour the electrolyte into
the battery by professional personnel. First, place the truck in a well-ventilated place, open the cap of the battery
box, and open the plastic cap on the battery top completely. Lift the plastic pot filled with the electrolyte with a
plastic funnel, pour the electrolyte into the battery slowly till the liquid level can be seen. When the battery is filled,
conduct initial charge for the battery in time according to the operation instructions given in 5.1.(For
maintenance-free batteries, there is no need to add electrolyte.)
9.3 Daily inspections
Check the oil level of the hydraulic oil:
Lower the forks to the lowest position, and the amount of added oil is 1.5L. For the hydraulic oil, adopt the
recommended brands.
Check the power of storage battery.
Refer to the use and maintenance of storage battery.
17
Attention
No smoking.
Make self-protective measures.
Wipe out the leaked oil timely.
When add lubricating oil, first clean the dirty oil or dust on the joint with a brush
or cloth.
Except for certain situations, turn off the key switch and plug out the power
socket.
When doing maintenance for the truck, the forks should be in the lowest
position.
When dismantle the high-pressure oil pipe, make sure that there isn't any cargo
on the truck, and the forks are in the lowest position to release the pressure in
the hydraulic system.
Before contact the terminal of the main circuit, please conduct discharge
operations for the circuit. There is capacitor in the circuit, thus a small amount
of electric energy may exist.
Clean the electrical part with compressed air. Never clean it with water.
When the truck needs to be maintained at a high altitude, the personnel should
be protected.