© Nov. 2022 5-6 GTZZ15J Operation Manual
PRE-OPERATION INSPECTION
Table 5-4
COOLANT TYPE
RECOMMENDED
AMBIENT TEMP
-18℃ ready-mix coolant -18℃ or higher
-37℃ ready-mix coolant -37℃ or higher
50% ethylene glycol and
50% water mixed coolant
-32℃～0℃
60% ethylene glycol and
40% water mixed coolant
-54℃～-32℃
NOTICE
• Do not apply sealing additive to the cooling
system, otherwise it will cause blockage to the
low-fluidity area, radiator and engine oil cooler, or
damage the water pump sealing.
• Do not apply soluble engine oil to the cooling
system, otherwise it will corrode the brass and
copper, damage the surface of heat exchanger,
sealing and hose.
• The water added into the coolant must meet the
requirements of calcium and magnesium less
than 170ppm, chloride less than 40ppm and
sulphur less than 100ppm. Excessive calcium and
magnesium can lead to scale formation, and
excessive chloride and sulfate can corrode the
cooling system.
INSPECTING THE BATTERY
Battery condition is critical to machine performance and
safe operation. A battery with improper electrolyte level
or damaged cables and wiring may bring damage to
battery parts and may pose dangerous conditions.
NOTICE
Always wear protective gloves for inspection.
ELECTROCUTION HAZARD
Contact with live circuits may cause
serious injury or death. Remove all
rings, watches and other jewelry.
BODILY INJURY HAZARD
Lead-acid batteries contain acid.
Avoid battery acid spills or contact
with unprotected skin.
If battery acid spills, use water mixed
with bicarbonate (baking soda) to
neutralize the acid.
NOTICE
After the battery is fully charged, wear protective
gloves for inspection.
Ensure the connections of the battery cable are not
corroded.
Ensure the battery is secured in place and the cable
wiring is fastened.
Note: Adding terminal protectors or applying anti-
corrosion agent will protect the terminals and cables
from corrosion.
Note: Make sure the battery is fully charged before
testing.
There are three types of batteries: lead-acid battery,
lead-acid maintenance-free battery and lithium battery,
the latter two requiring no maintenance.
Inspect lead-acid batteries
• Wear protective clothing and goggles properly.
• Ensure that the connections of battery cable have
not been corroded.
• Ensure that the battery is installed reliably and the
cable is connected tightly.
• Open the vent caps of two battery packs and
inspect the density of the electrolyte of each battery
pack with a liquid density meter.
Result: It is necessary to replace the battery if the
electrolyte density of any battery pack is smaller
than 1.026.
• Inspect the electrolyte level. Add distilled water from
the water inlet on the top of the battery if necessary.
Do not overflow.
• Install the battery vent caps.
• Inspect the wiring connection of battery to ensure
correct connection (the red cable to the positive,
and the black cable to the negative).
• Connect the charging plug to a 220V socket.
Result: The battery could be charged normally, and
the charge indicator is lit.
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