Operation & Maintenance Manual
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LG936 Wheel Loader
32
8.11 Examine and Repair of Coolant System
z
Severe burn may be caused if open the cover of oil tank, radiator after welding, pour water or oil
immediately after finishing welding, because the temperature of hydraulic oil, fuel and water in
engine, oil and oil in radiator may still very high and the pressure may still be high at this time.
Follow the program if do the operations above.
z
Shut the engine, cool the hot water, open the cover
slowly and gently to release the pressure. Use the arm
to feel the temperature of air in front of water radiator
to see whether the water temperature goes down. Be
sure never touch the radiator.
z
Shut the engine, cool the oil, open the cover slowly
and gently to release the pressure to prevent hot oil jet.
Use the arm to feel the temperature of air near the hydraulic oil radiator, torque converter oil
radiator to check whether the temperature comes down.
z
During machine warming,
do not
touch engine, silencer, tail pipe, relay to prevent burn.
z
During machine warming,
do not
disassemble the water heat sensor of engine, oil heat sensor of
torque converter and water pipe of air condition to prevent burn.
z
N
ever
let the harmful alkaline materials in coolant system touch your skin and eyes.
z
Choose proper container to hold liquid when replacing
the coolant, mobile oil of engine, oil of transmission box
and cleaning the parts. Dealing of waste liquid please
refer to
“
8.20 Waste Materials
” in this chapter.
z
Keep fire off when disassemble the connection pipe of air condition compressor.
8.12 Examine and Repair of Hydraulic System
z
Lock the oil tank and other hydraulic equipment safely, release the pressure of all hydraulic
