CG938H Wheel Loader. Manual - part 9

 

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select braking method of stopping without cutting off the power during driving. When using 

this method that does not cut off the power, do not operate shift control lever or place the 

transmission case at neutral position. It is dangerous when we do not use the brake force of the 

engine. If the speed is faster than the shift speed, step on brake peddle to slow down. The load 

will push the machine down the slope; place the shift lever at the first gear when starting to 

descend the slope. 

z  When driving down, the brake force of the engine shall be used for a low speed. If necessary, at 

the time of using the brake force of the engine, the brake pedle shall be used to control the 

driving speed. 

z  When driving the machine on slopes and the engine stops, step down the brake peddle to its full 

to brake, lower down the bucket to ground, and then use parking brake to fix the position of the 

machine.  

z 

If the engine stops when the machine is on a slope (grade of slope＜15 degree＝, step on the 

brake peddle immediately and lower down the bucket on ground, then use the parking brake. 

Place the direction and shift control levers at the middle position, then restart the engine. Do not 

drive on the grass, fallen leaves or wet steel plate at a high speed because in this way, even a 

very small slope will make the machine slide away. When driving on the slope, the machine 

shall be directly up and down. 

 

z  5.8 Traction and Trailer   

When hauling a machine that is not able to move, if the method adopted is not correct or the 

cable wire chosen is defective, injuries or death may be caused.   

z  Operate in accordance with the related contents in the Servicing Manual and Product 

Instructions. Other incorrect traction methods may cause people injuries.     

z  Pad the machine properly to prevent its movement before releasing the brake. If the machine is 

not padded properly, it may slip and cause injuries and damages. The linkage of the trailer must 

be firm! 

z  Both the drawing machine and the machine being drawn shall install ROPS. 

z  Select proper cable wire. The cable wire to be used shall not have any cutoff strand, kink or 

shrunken diameter. Wear leather gloves while handling cable wire.     

z  When preparing traction work with other workers, agree on the signals to be used before starting 

 

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the work.   

z  If the engine cannot be started or brake system is out of order, please contact the manufacturer 

and repair it.   

z  It is dangerous to haul a machine on slopes. Select a place where the slope is as flat as possible.   

z  If the machine that is out of order is to be hauled by another machine, the cable wire to be used 

must be strong enough to bear the load of the broken machine. When linking the machine to be 

hauled, nobody is allowed to walk to the space between the drawing machine and the machine 

to be drawn.   

z  The coupler of the machine to be drawn shall be in the same straight line of the traction part of 

the drawing machine and be in place properly.   

z  Do not stride over the drawing cable or cable wire.   

z  A traction mechanism is equipped inside the counterweight 

of the frame of this machine. When needing to haul this 

machine, or use this machine as the tractor, operate in 

compliance with the “tractor” instruction. 

 

 

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 Safe operation

Ⅵ

 

6.1 Keep Good Operation Practice 

z  Always sit on the seat while operating and make sure to fasten safety belt and safety protective 

device. The vehicle shall be always at a status under control.   

z  Operate the control lever of work devices accurately. Manipulate the control levers accurately; 

avoid misoperation.   

z  Listen to the sound of the machine carefully. Report for repair immediately when there is an 

abnormal sound. Do not repair any part that is working.   

z 

The load shall not be heavier than rated load weight. Confirm the weight of load materials 

beforehand to avoid overload. Chengdu Construction Machinery Co., Ltd is not liable to any 

machine damages or people injuries caused by overload. 

z  Do not rush into stockpiles at a high speed. Otherwise the vehicle may be damaged, the operator 

inclined to be injured and the goods damaged.   

z 

The vehicle shall be kept at a vertical angle to the load material. If operating obliquely, the 

vehicle is inclined to lose its balance and become unsafe.   

z  Before entering into narrow areas such as tunnels, overbridges or garages to work, inspect 

the conditions of the site.   

z  In heavily windy days, load materials down the wind. 

z 

When loading on a truck or a dumper, take care to prevent the bucket from bumping into the 

truck or dumper. Nobody is allowed to stand underneath the bucket; the bucket shall not be 

place above the cab of the truck.   

z 

Stop operation when visibility is lowered by smoke, fog, or dust. Lighting equipments must 

be installed if the light at work site is insufficient.   

z  Remember the following points when operating at nights: 

1．Make sure sufficient lighting equipments have been installed; 

2．Make sure the work lamps on the loader are at a normal status.   

3．Misjudgment of the height of and distance between objects are common when working 

at nights. Please operate with caution.     

6.2 Pay attention to Surroundings of Work Area 

z 

Irrelevant people are not allowed to enter into work area. Because the work device moves 

 

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vertically, rotates sideways and moves forward and backward, the surrounding areas of the work 

device (underneath, in front, at rear, inside, at two sides) are dangerous and is not allowed to be 

entered into.   

z 

When working near cliffs or at places where collapes may happen, must ensure safety and 

appoint people to command.     

z 

When releasing earth or rocks from lofty places, take care of the safety at the falling places.     

6.3 Ensure Ventilation When Working in Enclosed Space 

z 

When it is not avoidable to operate or handle fuel, or clean parts or paint at an enclosed 

place or a place not well-ventilated, must open doors and windows to ensure sufficient 

ventilation in prevention of gas poisoning. If ventilation is still insufficient by opening doors 

and windows, install fans.   

z 

When working at enclosed spaces, fire extinguishers shall be prepared. Remembe their 

locations and operation method.   

6.4 Do not Approach High Voltage Cable 

z  Do not allow the machine contact with suspended cables. Electric shock may be caused 

even if approaching to high voltage cables.     

z  Follow these instructions in prevention of accidents: 

1． 

When there is a danger of contacting electric cables by the machine at site, consult power 

company before operation starts to make sure whether the operation is safe. Consult power 

company for the voltage of cable before the operation starts.   

2． 

Wear rubber shoes and rubber gloves. Put a rubber pad on the operator’s seat. Take care not 

to let any exposed part of body contact with the metal chassis.   

3． 

If the work device contacts cable, the operator shall not leave the cab.   

4． 

When working near high voltage cable, nobody is allowed to approach the machine.