LG956 Wheel Loader. Manual - part 23

Operation & Maintenance Manual──LG956L Wheel Loader 

 91

Notice:   

If the whole vehicle is in the idle running, check the limit on the other side. The oil level is normal if 

the oil level is between the ‘Move full’ and ‘Adding oil’ limit of the dipstick; If the level is lower than 

the ‘Adding oil’ limit, oil should be added. 

„  Cummins 6CTA8.3 engine: The oil level is normal if the oil level is between ‘ADD’ and 

‘FULL’ limit of the dipstick; If the level is lower than the ‘ADD’ limit, oil should be added 

by the oil adding port. 

 

 

 

 

 

 

 

 

 

 

 

 

 

z  Put back the oil dipstick and close the profile door of the engine. For choosing the appropriate oil 

please refer to 

CHAPTER IV 2.2 Oil Selection

. 

 

 

②

 Engine Oil Replacement 

z  Park the machine on level ground, and put the 

transmission lever in neutral (“N”) position. Pull 

the brake valve manual control handle or press 

the parking brake switch to carry out braking, and 

put the blocks in the front and back of the tires. 

Start the engine and run at idle status until the oil 

temperature reaches 20℃～40 , then stop the 

℃

engine.

 

 

Operation & Maintenance Manual──LG956L Wheel Loader 

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z  Rotate the oil drain plug and let the oil 

flow out and hold it in a container. 

Change the oil filter. 

z  After the oil is released completely, rotate 

the oil drain plug back.   

z  Add engine oil from the oil adding port. 

 

„  Weichai WD10G220E13 engine: Open the left side door of the engine hood; add prescribed 

engine oil (about 12L) from oil adding port of engine.   

„  Shangchai C6121ZG50B engine: Open the right side door of the engine hood; add  

prescribed engine oil (about 27.5L) from oil adding port of engine. 

„  Cummins 6CTA8.3 engine: Open the right side door of the engine hood; add prescribed 

engine oil (about 27.5L) from oil adding port at the side of engine or from the oil adding 

port on the top of engine when open the left door of the engine hood. 

z  Run the engine at idle status, check whether the oil filter and oil releasing plug are leaky.

 

 

z  After the engine was stopped for 15 minutes, let the engine oil flow back to the oil pan, and check 

the engine oil level of the engine again. 

 

③

 Engine oil Filter Replacement 

Disassemble 

z  Clean the area near the engine oil filter. Disassemble it with filter elements spanner. 

Assemble 

z  Add diesel oil full in the filter element and smear engine oil on the rubber seal ring. 

z  Tighten 3/4~1 cycles after the seal ring connects with the base. 

z  Start the engine and check whether the seal ring is seal. If not, disassemble the filter element and 

check the sealing surface. 

 

△

!  

NOTICE

 

z  After changing the filter elements, the engine must run in the idle 

status at least 1 minute to ensure the engine is lubricated 

sufficiently before working. 

z 

Over tight mechanical rotation could damage the screw thread or 

filter element sealing.

 

Operation & Maintenance Manual──LG956L Wheel Loader 

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3.6.2 Adding Fuel to Fuel Tank 

Fuel Level Check 

z  Park the machine on level 

ground, and check the fuel 

level by dipstick on the outside 

of fuel tank. If the fuel level is 

under 0, please add fuel from 

inlet on the fuel tank. For fuel 

selection please refer to 

CHAPTER IV 2.2 

Selection of Oil, Fuel and 

Coolant

. 

3.6.3 Adding Oil to Gearbox 

①

 Oil Level Check 

z  Park the machine on level ground and put the transmission 

lever in the neutral (“N”) position. Pull the brake valve 

manual control handle or press the parking brake switch to 

carry out braking, and wedge the front and back of the tire.

 

 

z  Start engine and let the engine run in the idle status for 

several minutes. Open the oil checking plug at the side of 

the transmission box, the oil level is normal if there is oil 

flowing but not form pressure; if there is not oil flowing, 

hydraulic transmission oil should be added. The choice of the hydraulic transmission oil can be 

found in 

CHAPTER IV 2.2 Selection of Oil, Fuel and Coolant

. 

②

 New Oil Replacement 

z  Park the machine on level ground and put the transmission 

lever in the neutral  (“N”) position. Pull the brake valve 

manual control handle or press the parking brake switch to 

carry out braking, and wedge the front and back of the tire.

 

 

z  Start the engine and run in the idle status for several 

minutes. Loosen the oil drain plug on the side of the 

gearbox to drain the oil, and contain it with container. 

Operation & Maintenance Manual──LG956L Wheel Loader 

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△

!  

WARNING

 

If the temperature of the gearbox oil is relatively high, please wear 

protective clothes, and operate carefully to prevent injury. 

 
z  Drain all the oil out and clean the oil on the draining plug 

and the transmission box, and wear new raw meal on the 

oil draining plug and assemble it well. 

z  Loosen the cover of oil adding port on the right side of the 

frame joint position. Inject the prescriptive hydraulic 

transmission oil (about 45L), and then fasten the cover of 

the oil adding port. 

z  Start the engine and run in the idle status for several minutes. Check the oil level of the 

transmission box. 

△

!  

NOTICE

 

z  If the old oil is dirty, do not add new oil directly. Disassemble the 

raw oil filter which is in profile, and clean all the parts. If there 

are any metal powders or fragments please contact the 

maintenance man. 

z 

Assemble the parts, and add a little new hydraulic transmission 

oil. Start engine and hold in the idle status for 3~5 minutes. 

Release the oil in the oil pan and add new oil.

 

 

3.6.4 Adding Oil to Axle 

①

 Oil Level Check 

z  Park the machine on level ground and put the transmission lever in the neutral position. Pull the 

brake valve manual control handle or press the parking brake switch to carry out braking, and 

wedge the front and back of the tire. Loosen the oil adding plug in the middle of the front and 

rear axles. It is proper if the oil level is at the bottom side of the oil adding port, otherwise please 

add axle oil. Please watch for about 5 minutes after adding oil. If the oil level keeps stable, please 

assemble the oil adding plug. For selections of gear oil, please refer to 

CHAPTER IV 2.2

 

Selection of Oil, Fuel and Coolant

.