Zetor PRIMO HT 20 NC, Operator'S Manual, Page: 20 / 134

Prevent acid burns
1. When working with your tractors electrical components you must first disconnect the battery cables.
2. To ensure that there are no accidents from sparks you must first disconnect the negative battery
cable.
Service tractor safely
Protect the top of the battery from sparks, flammable
materials and open flames. Accumulated battery fumes
can explode. Never check the battery charge by
connecting the battery terminals with a metal object.
Sulfuric acid in the battery electrolyte is hazardous to
health. It is strong enough to burn the skin, burn through
the clothing and cause blindness when it gets into the
eyes.
To ensure adequate safety, always:
1. Refill the batteries in a well-ventilated place.
2. Wear eye protection and acid-resistant gloves.
3. Do not inhale the released vapors after the
electrolyte has been added.
4. Do not add water to the electrolyte, as it may cause
expansion and subsequent severe burns.
If you get stained with acid:
1. Rinse skin with water.
2. Rinse eyes with water for 10 - 15 minutes. Seek
medical advice immediately.
U18N146
Battery disconnect
UCL18N007
Do not wear a tie, scarf or any other loose clothing when
working near moving parts. If any of these garments is
caught, a serious injury may occur.
Do not wear rings or other jewellery to avoid electrical
short circuits and entanglement in moving parts.
U18N147
SAFETY INSTRUCTIONS
19