Oil Change in Hydraulic Reservoir

Interval

1 Year(s) Real time

Component

Hydraulic unit

Consumable

Hydraulic oil HLP 46 to DIN 51524, Part 2 (ISO-L-HM 46 to ISO 6743, Part 4) Purity class ISO 4406-18/16/13 For tank capacity, see hydraulic circuit diagram (HP)

Disimilar lubricants can contain various additives that might not be compatible. To rule out incompatibility between the lubricants, disimilar lubricants must not be mixed. If you have any questions, please contact your lubricant supplier.

Used oil must be regarded as hazardous waste and be disposed of according to the locally applicable regulations.

Spare part

Cleaning cover seal 01.102524 Filling strainer

See Hydraulic Diagram (HP).

Contaminated filter elements must be regarded as hazardous waste and disposed of according to the locally applicable regulations.

Oil extractor Hose with a diameter of 8 x 1.25 mm to ventilate the hydraulic unit Torque wrench for 10 Nm

For structure of the hydraulic system, see the Hydraulic Diagram (HP).

Emptying Hydraulic Reservoir

Procedure

Machine switched off at main switch and secured against being switched on again.

Screw off filling strainer cap.

Remove the fixing screws on the filling filter filling sieve. Remove filling sieve. Dispose of the used filling strainer.

Exhaust oil through filling opening in filling filter.

Cleaning the Hydraulic Reservoir

Step 1:

Remove cleaning cover. Exhaust residue.

Step 2:

Remove dirt and deposits from hydraulic reservoir using lint-free cloths. Do not use any solvents.

Step 3:

Check the cleaning cover seal for damage. Replace damaged seal. Fit cleaning covers.

Step 4:

Insert filling sieve of the new filling strainer and screw down.

Filling Oil

Procedure

Fill with oil through filling opening in filler filter up to the max. mark on the oil level indicator.

Screw down the filter cap of the filling strainer.

Checking Filing level in axial piston pump

Depending on the piston position, the axial piston pump may run out via the suction line after you have emptied the hydraulic reservoir. Check and refill as described in the following in order to avoid that the pump runs dry on start-up and seizes.

Note that, depending on the design of your machine, the filler plug may be in a different position.

Procedure

Check and top up filling level in axial piston pump:

  • Remove plug.
  • Check fill level. If oil is missing, top up oil until no more bubbles rise to the surface.
  • Insert plug.

Vent hydraulic unit

Procedure

Vent hydraulic unit:

  • Remove safety cap.
  • Attach hose to vent valve and take a firm hold.
  • Open the vent valve on the vent pipe by half a rotation.
  • Turn on machine on at the main switch.
  • Switch on motors.
    • The hydraulic unit will run.
  • Drain approx. 5 litres of hydraulic oil into a container and close the valve while pressurized.
  • Tighten the vent valve to a torque of 10 Nm.
  • Attach safety cap.

Run machine for a few minutes.

Check screw plug and cleaning cover for leakages.

Check oil level at the oil level indicator. Fill with oil up to maximum mark.