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5.15.2
REGULAR REPLACEMENT OF HYDRAULIC OIL
Every 2000 working hours or every year the hydraulic oil should be replaced. If the oil
deterioration occurs due to poor working conditions, or hydraulic oil is contaminated, such
as the color changes to black, oil foaming, please replace the hydraulic oil.
During the oil changing process, the machine need to be operated at a variety of
actions, please note to perform in accordance with the relevant safety regulations.
During the oil change process, we should pay great attention to cleanliness of the
oil, do not let dirt coming into the hydraulic system.
1. Clean up the impurities and debris in the bucket, and park the car at the flat and open
spaces, install a fixed frame rod, rotate the parking brake button to reset it, speed
changing handle is placed in the neutral position. Start the engine and run it at idle
speed for 10 minutes, during the previous process, repeat several times to lift the lift
arm, lower down lift arm, forward dumping the bucket and backward dumping the
bucket, and other activities.
2. Finally, raise the lift arm to the highest position, and tilt backwards the bucket to
maximum position, the engine turns off.
3. Firstly push the pilot joystick to the right, so that the bucket is tilted forwards under its
own weight to pour out the oil in the bucket cylinder; after the bucket turns to right
place, push the joystick forward and the lift arm lowers under its own weight to pour
out the oil in the lift arm cylinder
4. Push the pilot joystick to the middle position.
5. Clean up the oil outlet cover at the bottom of the hydraulic oil tank, screw off the oil
outlet screw piston and receive the oil with container. At the same time, screw offs
the air filter to speed up the process of draining oil.
6. Remove top cap of the oil return filter of the hydraulic oil tank, replace the oil return
filter element. Dismount the top cap of the oil filter of the hydraulic oil, and replace the
filter element.
7. Block the sucking back port of the hydraulic oil tank with a clean cloth, flash to clean
the inside wall of the hydraulic tank with diesel from the top cover installation port of
the sucking back filter of the oil tank, and drain out the oil from the oil outlet pipe.
Finally, clean the bottom of the oil tank and four sides of the wall with a clean dry cloth,
take out the cloth blocking at the oil sucking port.
8. Install the oil outlet screw piston for hydraulic oil drainage, return oil filter, oil suction
filter and top cap.
9. Fill clean hydraulic oil for the refueling port of the hydraulic oil tank, so that the
hydraulic oil level reaches the middle position of upper oil mark of the hydraulic oil,
screw on the refueling cap.
10. Remove the frame fixing rod, start the engine, operate the pilot joystick for lifting the
Warning
