CG938H Wheel Loader. Manual - part 5

 

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z  Put oily cloth and other combustibles in protective containers and keep them at safe place.   

z  Remove combustibles accumulated on the machine, such as fuel, lubricant and other fragments.   

z  Do not conduct welding or flame cutting operation on tubes or boxes containing combustible 

liquid. Before welding or cutting, must clean with fire-resistant fluid when these operations have 

to be done.     

z  During the operation of the machine, when the exhaust outlet of the engine muffler is close to 

dry grass, waste paper or other combustibles, special care shall be taken. Do not place the 

machine at places with flames or burning bushes when it is practical.   

z  When parking the machine, take care to select parking place and avoid the high temperature 

parts like the engine muffler close to combustibles.   

z  Clean and fasten all electrode terminals. Check for loose or worn wires everyday. Before 

starting the machine, fasten loose wires and repair or replace worn wires.   

z  Check whether there is a leakage of fuel, engine oil or hydraulic oil. When there is, change the 

damaged hose; complete the repair and cleaning before operation.     

z  Do not use flames when checking dark areas.   

z  Shall prepare a fire extinguisher and know how to use it. Inspect and maintain it according to 

the instruction in the manual.   

3.4 Fire Extinguisher 

Take actions immediately should a fire arise:   

z  Must prepare a fire extinguisher for use; get familiar with operation of the fire extinguisher.   

z  Must prepare first-aid kit at the site. Check regularly and replenish medicines when necessary.     

z  Sort out some emergency telephone numbers (such as first-aid center, hospital, fire alarm) for 

contact in emergency. Post these numbers at specified places to ensure everyone is informed.   

Location of the fire extinguisher:   

3.5 Ether (when coldstart device is equipped on the 

machine) 

z  Ether is a toxic and combustible object.   

z  Injury will be resulted from inhalation of ether vapor or 

frequent skin contact with ether.   

z  The area shall be well-ventilated where ether is used.   

 

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z  Do not smoke when changing ether container.   

z  Take care to prevent fire when using ether.   

z  Do not put replaced ether container at living area or in the cab.   

z  Do not put ether at places under direct sunshine or where the temperature is over 39℃（120°F）.  

z  Put discarded ether container at safe place. Do not perforate it or heat it.   

z  Keep ether container at place which is not accessible for non-staff.   

3.6 Precautions for Burnings and Other Injuries 

Coolant 

z  When the machine is working or has just finished working, the engine coolant is hot and is 

pressured. All the tubes from radiator to engine contain hot water or steam; severe burnings will 

be inflicted by contacting with them.     

z  When checking the coolant level, the engine shall be at the status of stopping and screw off 

slowly the filler cap of cooling system to check the fluid level (screw off slowly to vent the 

pressure).   

z  When it is needed to discharge the coolant, allow the coolant cool down completely before the 

discharge.  

Oil  

z  Hot oil or hot parts may cause injuries. Please take care not to touch hot oil or parts to avoid 

skin burning.   

z  When the machine is working or has just finished working, the hydraulic oil’s temperature is 

high and the oil is pressured.   

z  When opening the filler cap of hydraulic oil tank, the engine shall be stopped and screw off 

slowly the filler cap (screw off slowly to vent the pressure). 

z  Before opening the hydraulic oil tank cover, any tube or joint or dissembling parts, please vent 

their pressure firstly.   

z  Please do not knock or bend high-pressure tubes.   

Accumulator 

z  Must inspect accumulator before filling nitrogen. It is prohibited to fill gas in if the accumulator 

is not installed with plate, the contents on the plate is not complete or not able to be recognized, 

or defects on the body which may affect safe use of it.   

z  The accumulator is only allowed to fill in nitrogen. It is prohibited to fill in oxygen, compressed 

 

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air or other combustible gas to avoid explosion.   

z  The accumulator is a high-pressure container and shall be maintained or changed by 

professional manufacturers. Before dissembling the accumulator, pressure must be vented and 

nitrogen inside the bladder be discharged with special tools. Then the parts can be dissembled.   

Storage battery 

z  Storage battery will release combustible smoke that may cause explosion.   

z  Do not smoke when checking the electrolyte of the storage battery.   

z  Electrolyte is an acid material that will cause injury when in contact with skin or eyes.   

z  Wear protective goggles when working on storage battery.   

Pipeline, tubes and hoses 

z  Do not bend or hammer high-pressure pipelines; do not install damaged tubes or hoses on the 

machine.  

z  When repairing any loose or damaged fuel or lubricant tube or hose, any leakage may cause a 

fire. Please take care to ensure safety.   

z  Inspect the pipelines, tubes and hoses. Do not check for leakage with bare hand. Check for 

leakage with a piece of board or cardboard. Fasten all joints with specified torque. When any of 

the following troubles is discovered, shall make replacement.   

1． Damage or leakage of joints.   

2． Wear-out of or cut on out layer and bareness of reinforcing wire.     

3． Local bump of outer layer.   

4． Obvious twist or flatness of hoses.   

5． Wire in reinforcing layer is embedded into outer layer.     

6． Displacement of end joints.   

Ensure correct installation of all pipe clamps and guard plates to avoid vibration and consequent 

overheat by friction with other parts when the machine is working.   

Tire 

Explosion of tire full of gas results from heating and combustion of the gas inside the tire. Heating 

is usually caused by welding or heating of wheel rim or flames. Or it may be caused by gas 

combustion resulting from overuse of brakes.   

Explosion of tyre is much powerful than deflation. Explosion may cause tyre and wheel rim to fly 

away as far as 500 meters. Explosion and its fragments may result in injuries and property damages.   

 

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Donot stay in the range indicated in the following diagram. 

Recommend inflate tyres with dry nitrogen (N2).If there is already air inflated in the tyres, 

recommend use nitrogen to adjust pressure. Nitrogen can be blended with atmosphere air.   

Tyres inflated with nitrogen are less probable to explode, because nitrogen is not combustible. 

Besides, nitrogen helps prevent ageing of rubber and corrosion of wheel rim parts.   

Proper equipment and training is desirable to avoid overinflation. Leakage or damage of wheel rim 

are caused by improper inflating equipment or improper use of it.   

Compressed air 

z  Compressed air may cause injuries. When clean with compressed air, wear mask, protective 

clothing and shoes.   

z  The maximum pressure of compressed air used for cleaning shall be lower than 0.205Mpa. 

Leakage of solution 

Use board or cardboard to check for leakage. 

Even the leakage of pressured fluid as minor as 

a needle eye may penetrate muscles and cause 

injuries. If solution is jetted to skin, it shall be 

treated within a couple of hours by surgeons 

who are familiar with this kind of injury.   

Asbestos 

At least 500m 

At least 15m