LG956 Wheel Loader. Manual - part 16

Operation & Maintenance Manual──LG956L Wheel Loader 

 63

1.2 Introduction of Gauges & Controls 

The introduction of gauges & controls needed for operating the machine is below. Be sure to 

understand their functions and methods for use. 

1.2.1 Vehicle Gauges and Lights 

z  Engine Water Temperature Gauge   

This gauge indicates the temperature of engine water. 

When the temperature index lies in the green ranges (60 ~100 ), 

℃

℃

the water temperature is normal.   

Notice: 

If the temperature index moves past green into the red range, be sure to 

stop the machine for inspection. 

Refer to 

3.4.2 Steps to Stop Engine

 in this chapter for details 

of stopping the engine. 

z  Torque Converter Oil Temperature Gauge   

This gauge shows the torque converter oil temperature 

When the temperature index lies in the green range (60 ~120 ), 

℃

℃

the oil temperature is normal. If the temperature index moves past green 

into the red ranges, be sure to stop the machine for inspection. 

 

z  Working Chronometer 

This indicator shows the total operation hours of the machine; its 

value can be used as a reference for inspection and maintenance. 

 

z  Gearbox Oil Pressure Gauge   

This gauge indicates the pressure of the gear-shifting system. 

—  If the pressure index lies in the green range (1.1MPa~1.5MPa), 

the oil pressure is normal. Be sure to stop the machine for 

inspection if the index moves outside this range. 

 

—  If the pressure index lies in the range of (11~15)×100kPa or 

(15.95~21.75) ×10PSI, the oil pressure is normal. Be sure to 

stop the machine for inspection if the index moves outside this 

range. 

Operation & Maintenance Manual──LG956L Wheel Loader 

 64

 

z  Air Pressure Gauge 

This gauge indicates the air pressure of the brake system. 

—  If the pressure index lies in the green range (0.4MPa~0.8MPa), the 

oil pressure is normal. Be sure to stop the machine for inspection if 

the index moves outside this range. 

—  If the pressure index lies in the range of (4~8)×100kPa or 

(5.8~11.6)×10PSI, the oil pressure is normal. Be sure to stop the 

machine for inspection if the index moves outside this range. 

 

z  Fuel Level Gauge (if assembled) 

This gauge indicates the ratio of remaining fuel level in the fuel tank to 

the volume of tank.   

 

 

 

 

z  Revolution Indicator (if assembled) 

This gauge indicates the rotating speed of engine. 

 

 

 

z  Indicator Lamp   

The indicator lamp is located on the gauge panel. Refer to 

1.1 

Control Systems and Gauges Figure3-3 and 3-4 

in this chapter. 

 

 

 

 

 

 

 

 

Operation & Maintenance Manual──LG956L Wheel Loader 

 65

Pre-heat Indicator Lamp: The lamp will come on if start switch is turned to preheat position 

when machine is equipped with cold start equipment; the lamp will be off if start switch is turned to 

other position. 

Oil Pressure Warning Lamp: The lamp will come on immediately if the start switch is turned 

on. It will go off immediately after the engine is started. Otherwise it means the level of lubricant is 

too low or there is some problem with the lubricant system. Then shut the engine and check it. 

Charging Indicator Lamp: The lamp will come on if the start switch is turned on. It will go off 

immediately after the engine is started. Otherwise it means there is some problem with storage battery. 

Please examine and repair it. 

Power Cut Indicator Lamp: The lamp will come on if the power is cut off, and it will go off if 

the power is not cut off. 

When braking pedals are installed on the two sides, the power will be cut off and the lamp will 

come on if the left braking pedal is stepped down; the power will not be cut off and the lamp will go 

off if the right braking pedal is stepped down. 

Emergency Steering Indicator Lamp: The emergency steering function is selected to install. 

When the wheel loader is steered emergently, the lamp will come on if the emergency steering pump 

works.  

Parking Brake Indicator Lamp: If the brake air pressure is normal, the lamp will come on 

when the brake valve manual control handle is pulled up (or the parking brake switch is pushed 

down). The lamp will go off when the brake valve manual control handle is pushed down (or turn the 

parking brake switch to spring back); the lamp will also come on if the brake air pressure is low. 

Low Brake Air Pressure Alarm Lamp: The lamp will come on for a warning if the brake air 

pressure is below 0.4MPa. 

High Beam Indicator Lamp: The lamp will come on if the high beam is used in the front head 

light. The lamp will go off if the low beam is used in the front head light or the front head light is off. 

Computer box working Indicator Lamp: The ZF or 4WG180 gearbox is selected to install, the 

indicator lamp will come on if the starting switch is on, otherwise, please stop to exclude the error. 

Fuel Prefiltration Indicator Lamp: The lamp will come on when the fuel preliminary filter is 

blocked. Please clean it or replace.   

Turning Indicator Lamp: The lamp will come on if the steering switch is connected, 

meanwhile, the steering lamp will come on. The left indicator lamp will come on if turn to left, and 

the right indicator lamp will come on if turn to right. 

 

 

Operation & Maintenance Manual──LG956L Wheel Loader 

 66

1.2.2 Switch 

z  Starting Switch 

This switch is used for starting or shutting down the electric system 

and the engine. Refer to 

1.1 Control Systems and Gauges 

Figure3-1 and 3-2 

in this chapter.   

HEAT Position 

This position is used for the engine pre-heating position of cold-start 

system. The domestic basic type is not mounted with pre-heat system, 

the user can select to install. 

OFF Position 

Insert or remove the key in this position. Turn the key to this position to cut off the electric 

power. 

ON Position 

This position is used to turn on the electric system. Keep the key in this position when the engine 

is running. 

START Position 

This is the engine-start position. Keep the key at this position during starting. After the engine has 

started, immediately pull out the key, or it will return to ON position automatically.   

z  Radio and CD Player Control Panel (if assembled) 

This switch is at the right side of the ceiling cab, and for the details please refers to Radio and 

CD Player Assemble & Operation Manual. If the radio is not assembled, the connecting line of 

radio is reserved, please assemble it according to the electric principle diagram by authorized person 

of vehicle or construction machinery electric. 

z  Turning Switch (if assembled) 

Push this switch forward, and the left turning lamp lights. Push this switch backward, and the 

right turning lamp lights. Refer to 

1.1 Control System and the Gauge Figure 3-1

 in this 

chapter. 

z  Switch Group (if assembled) 

Refer to 

1.1 Control System and the Gauge 

Figure 3-2

 in this chapter. The switch controls 

lighting, high and low beam and steering light. 

‹  Lighting 

When the starting switch is in the ON position, the high beam of front headlight is lightened if the