CG958H Wheel Loader. Manual - part 24

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conditioning etc. 

3. Help the started loader close the choke so as to facilitate wire connection. But two loaders 

shall not contact each other. 

4. Help to turn off the engine of the started loader. If the auxiliary power source is used, the 

charging system shall be turned off. 

5. Give attention to whether the wire connection of the accumulator is correct and tightened. 

6.  Connect the anode (+) of the external power source to the anode (+) terminal of the 

discharged accumulator or the accumulator of choke. 

Note:  The accumulators connected in series are installed in the same accumulator box. Use the 

terminal connected with the starting motor. The accumulator and starting motor are situated at the 

same side of the loader.   

Any metal shall not contact the anode wire clip. 

7.  Connect another anode of the external power source (+) to the anode helping the starting of 

the accumulator. Identify the correct connector lug with the method of Step 6. 

8.  Connect cathode of the external power source (-) to the cathode helping the starting of the 

accumulator.  

9.  Lastly, connect another cathode of the cable to the frame (not the cathode column of the 

accumulator). The connection position shall be kept away from the accumulator, fuel, 

hydraulic pipe or moving elements. 

10. Start the engine that helps starting of the loader or close the charging system assisting in 

starting. Two minutes at least are required to shut down partial charging of the loader. 

11. Try to start the choke. Please refer to “Starting of Engine”. 

12. After starting the flameout engine, the external power source shall be shut down 

immediately in the reverse order. 

13. Summarize the causes for starting or charging failure of the choke. Now, the engine works 

and the charging system works normally. 

 

 

 

 

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After Starting the Engine 

Caution 

Keep the engine run at a low speed until the pressure of the engine oil pressure gauge is 

normal. If there is no engine oil pressure within ten seconds, the engine shall be stopped for 

the examination over causes, or not, the engine will be damaged. 

 

1.  Five-minute low-speed unload idling is required to heat the engine. Operate all joy sticks to 

accelerate the preheating of the hydraulic components. 

2.  In operation, observe whether the instrument stays within the normal range. 

In idling and preheating of the engine, the following items shall be noted: 

z  In case the temperature is 0℃ above, the pre-heating time lasts about 15 minutes. 

z  In case the temperature is 0℃ below, the pre-heating time lasts about 30 minutes. 

z 

In case the temperature is -18  below or fluidity of the hydraulic oil is poor, long preheating 

℃

time is required.

 

Warning 

After starting and preheating of the engine, if the low brake pressure alarm lamp lights 

continuously, the engine shall be stopped immediately for examination. After the alarm lamp 

lights off, the engine may be operated, or not, your driving safety would be endangered. In 

case the brake pressure alarm lamp lights during the period of drive, it shall be stopped 

immediately for examination. 

 

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Operation of Loader 

In order to avoid industrial injuries, anyone shall not work on or near the loader. At any 

time, the loader shall be under control. 

In driving at the busy downtown area or over a high place, the speed shall be reduced. 

Prior to downgrade, the gear shall be selected. In downgrade, the gear shall not be 

changed. The same gear for downgrade as the one for anabatic driving is a better practical 

method.  

The engine’s excessive speed for downgrade is not allowed. In downgrade, the excessive 

speed of the engine may be reduced by the brake pedal. 

The load will push the loader downgrade. At the beginning of downgrade, the gear shift 

lever shall be placed at the first gear. 

For the operation, the following items shall be noted: 

1.  Regulate the driver’s chair. 

2.  Lift the working device to avoid running against the obstruction. 

3.  As the braking oil pressure reaches the normal value, the parking brake shall be loosened. 

4.  Turn the transmission control rod to the required speed position, and pull it to the required 

direction (at the beginning of machine’s start, only I and II gears are available). 

5.  Step on the accelerator pedal to make the engine at the required speed. 

6.  Step on the parking pedal to avoid movement of the loader. 

7.  As the loader advances, the driver shall have a good vision and control sense. 

Caution 

In order to ensure comfortable operation and maximum service life of driving 

element, speed reduction or brake shall be conducted prior to change of direction and 

gear. 

Caution 

During the period of drive, braking with parking brake will wear and damage the 

parking brake seriously. 

Warning 

After starting and preheating of the engine, if the low brake pressure alarm lamp 

lights continuously, the engine shall be stopped immediately for examination. After the 

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alarm lamp lights off, the engine may be operated, or not, your driving safety would be 

endangered. In case the brake pressure alarm lamp lights during the period of drive, it 

shall be stopped immediately for examination.