LG936L Wheel Loader. Manual - part 18

Operation & Maintenance Manual──LG936L Wheel Loader 

 68

 

 

 

 

 

 

 

 

 

 

 

 

z  Operating methods 

a)  Refrigeration 

First-time use, turn the air volume and power switch to high gear after the engine started, 

turn the temperature control switch to refrigeration. Turn the air volume to obtain low, 

middle and high volume of air. 

b) Heating 

Turn the temperature control switch to the state of off, open the hot water valve the air 

volume and power switch, warm air blow constantly. Turn the air volume and power switch 

to obtain low middle and high volume of air. 

c) Power 

indicator 

lamp 

If the system in a normal energizing the power indicator lamp will come on. If the 

refrigeration indicator lamp comes on,

 

the compressor starts working for the refrigeration of 

air conditioning.

 

Notice:  

—  Avoid the temperature control switch 3 is always in the coolest position and the air volume 

and power switch 2 is in the fan low gear (L position), in order to prevent the evaporator 

from frosting. 

—  Avoid the sun shining directly in summer. 

—  Please shut the door and window of cab when using the air conditioning; shut the heat source         

valve when using for refrigeration; shut the temperature control switch for refrigeration when 

using for heating in winner. 

—  Clean the condenser periodically using compress air and cold water, but not using hot water 

1. Air Volume and Power Switch      2.The Switch to Control The Temperature     
          3. Refrigeration Indicator Lamp    4. Power Indicator Lamp     

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or steam. 

—  Run the compressor once a week when the refrigeration isn’t used in winner for 1min to 

maintain the air conditioning in normal state. 

1.2.10 Adjustment of Cab’s Seat 

 

△

!

 WARNING

 

z  When adjusting the cab’s seat, park the machine in a safe 

place and stop the engine. 

z  Adjust the cab’s seat before starting operation or replacing 

the operator. 

z 

Make sure that you can depress the brake pedal completely 

when your back is against the seat backrest.

 

z  Weight Adjustment 

The weight adjustment handle is in the middle of seat bottom. 

Turn the handle clockwise to reduce the damping stiffness and 

turn anticlockwise to increase the damping stiffness. Rotate the 

damping stiffness adjust handle A by hand according to the 

operator’s weight until feel comfortable.

 

 

z  Fore-and-Aft Adjustment 

This handle is on the left bottom side of the seat. Pull the 

fore-and-aft handle B and move the seat forward or backward to 

the desired position; it will lock automatically after pushing it 

down.   

z  Backrest Angle Adjustment 

Put the backrest angle adjust handle C upward to pull the backreat until the angle is comfortable. The 

backrest angle is locked when loose the handle. 

z  Height Adjustment 

There are three positions for the height of seat, and the operator can adjust according to the need. 

During adjusting, set the base under the seat by two hands and draw up forcibly and stably. When the 

cracking sound is sounded, please loose your hands, then the seat will fix in this position. Adjust the 

position of seat to the highest position and draw up forcibly, and then press down, the seat will fall to 

the lowest position. 

z  Headrest Height Adjustment 

Set the headrest of seat by two hands, and then draw up or press down forcibly to adjust the height of 

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headrest. 

1.2.11 Use of Safety Belt 

If the safety belt is assembled on the seat, please tie it when operating the machine. Before using 

safety belt, please check the degree of wear and firm. Replace it if it is necessary. 

Adjust the length of safety belt before using to make sure the safety belt can be used for safety 

guarantee and comfort. Move the position of lock on the safety belt to adjust the length of safety belt. 

The clamper of the safety belt is at the right side of seat, and put the lock into the opening of clamper 

to jam the lock. There is a red button on the side of opening of clamper. Press the button and the lock 

will jump out from the clamper. Before using the safety belt, please check the clamper of safety belt 

whether lock and loose normally.   

1.2.12 Rearview Mirror   

Rearview mirrors are on the left and right sides outside the cab and left upper inside the cab. Before 

starting work, the rearview mirror must angle be adjusted for a good rear. 

1.2.13 Key   

This loader equips two key for every using condition: 

z  The key of left and right doors of cab. 

z  The starting switch key for engine. 

z  The key of left and right doors of engine hood. 

z  The key of left and right otter boards of engine hood. 

z  The key for adding fuel port of fuel box. 

2 RUN-IN PERIOD OF NEW MACHINE 

A new machine must have a run-in period first to increase the load step by step from free rotating; so 

that each part of the machine can be have full run-in period for increasing the life of the machine. It 

needs 60 hours to train the new machine, and operate follows: 

z  Run the machine in neutral at low-speed to preheat the engine. 

z  Never accelerate the engine suddenly in the preheating period. 

z  Never start, accelerate, turn or brake suddenly except in an emergency. 

z  When the loader is working without a load, the gearshift should be used from low speed to high 

speed at each level accordingly. Turn left, right or brake steadily in the process of driving. 

z  In the period of run-in, all speeds including forward and reverse should be adjusted. 

z  It is better to load bulk materials in the period of run-in. Do not operate the loader too hard or too 

rudely. The load should be less than 70% of the standard load, and the speed should be better less 

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than 70% of the maximum speed limit. 

z  Pay attention to the lubricating condition; routinely add and change the lubricant according to 

rules. 

z  Pay attention to the temperatures of the gearbox, torque converter, front and rear frame, rim and 

brake drum. Once they are overheating, find the reason and repair it. 

z  Check the fastening conditions of the bolts and nuts. 

Do the following maintenance after 10 hours of run-in time on the new loader: 

z  Check the fastening status of bolts and nuts of all parts, but especially the bolts of diesel engine 

cylinder cover, vent-pipe bolts, front and rear frame bolts, rim bolts, transmission axle bolts and 

connection bolts. 

z  Clean the raw and essential engine oil filter and fuel filter. 

z  Check the tension status of the belts of fan, electrical machine and air condition compressor 

z  Check the capacity of the storage battery electrolyte and its reserves, and fasten the connect 

poles. 

z  Check the oil level of the gearbox. Please refer to 

3.6.3 Adding Oil to Gearbox

 in this 

chapter. 

z  Check the seal of the hydraulic system and braking system. 

z  Check the connection and sensitivity of all control levers. 

z  Check the temperature and the connections of the circuit system, the power supply of electrical 

machine, gauge, light and lamps and turning signals. 

z  Open the air storage tank to drain water. 

The following maintenance should be done after the run-in period of new machine: 

z  Clean the filter at the bottom of the gearbox and the oil filter cartridge of the torque converter. 

z  Check the oil returning filter cartridge of the hydraulic oil tank. 

z  Change the engine oil. Please refer to 

3.6.1 Fuel Supplying of Engine 

in this chapter. 

3 OPERATION AND USE OF LOADER   

3.1 Notices for Usage 

1.  The diesel must be cleaned and deposited more than 72 hours before it is to be used. The 

trademark should suit the rules. 

2.  Transmission oil for the gearbox, torque converter, and the hydraulic oil for hydraulic system 

must be clean.