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Battery
Safety rules for batteries
The battery electrolyte contains sulfuric acid, which
generates flammable and explosive hydrogen gas. Wrong
operation can cause serious injury or fire. Therefore, the
following precautions must be observed:
⚫
The battery cover is equipped with an indicator to
display the battery charge state. When the indicator
displays in green, the battery can be used normally.
The battery shall be charged in time when the
indicator displays in black, and the battery shall be
replaced immediately when the indicator displays in
white.
⚫
When operating the battery, wear safety glasses and
rubber gloves.
⚫
Do not smoke or use open fire near the battery.
⚫
If the eyes, clothes or skin are splashed with sulfuric
acid, rinse them with plenty of water and seek
medical attention immediately.
⚫
Before operating the battery, turn the key switch to
the OFF position.
⚫
Check the electrolyte level with a flashlight, and turn
off the engine when checking.
⚫
The swelling at the end of the closed battery
indicates that the battery has frozen. When the
battery is frozen, do not charge the battery or jump-
start the engine.
Do not heat the frozen battery over 15
℃
, otherwise,
the battery may explode.
Anti-explosion of battery
Warning: Electric sparks or flames will cause the hydrogen in the battery to explode. To prevent
explosions, please note:
1) When disconnecting the battery cable, first disconnect its cathode (-) cable;
2) When connecting the battery cable, the cathode (-) cable should be connected last;
3) Metal components cannot be used to short-circuit the terminals of the battery;
4) Do not weld, grind or smoke near the battery.
Due to the risk of sparks, follow the below steps.
⚫
Install the battery firmly to the determined position.
⚫
Do not let tools or other metal objects touch between the battery terminals. Do not drop tools or other metal objects
near the battery.
⚫
Connect or disconnect the positive and negative poles of the battery in the correct order. The battery terminals
should be firmly fixed.
⚫
When charging the battery, flammable hydrogen will be generated. Therefore, before charging, remove the battery
from the machine, put it in a well-ventilated place, and remove the battery cover.
⚫
Tighten the battery cover firmly.
Note: When repairing the electrical system or performing electric welding operations, remove the negative
terminal of the battery to prevent the flow of current.
Summary of Contents for U27
Page 1: ...U27Hydraulic Excavator Instruction Manual Guangxi Yuchai Heavy Industry Co Ltd...
Page 5: ...1 1 Preface...
Page 17: ...2 1 Safety regulations...
Page 44: ...3 1 Parts introduction...
Page 49: ...3 6 Panel meter Oil level pointer Timing display Water temperature pointer Indicator area...
Page 55: ...4 1 Operation guide...
Page 89: ...5 1 Maintenance...
Page 130: ...6 1 Accessories guide...