Case Loader Backhoe 580BCK

Park the machine on a level surface.

Have the backhoe in the transport position, if so equipped, and the loader bucket rolled back at ground level.

Remove the drain plug from the elbow at the bottom of each subframe. Approximately 5-1/2 U.S. gallons will drain from each subframe.

Remove the reservoir breathers and clean as instructed.

Replace the hydraulic oil filter as instructed.

Remove the vent plug from the front of the subframe.

Fill the reservoir through the large breather opening until oil appears at the vent plug opening, then reinstall the plug.

Remove the oil level plug and continue filling until oil is level with the plug opening.

Unscrew filter housing from filter head

Remove filter element and discard

Remove the O-ring from the filter housing and discard

Clean the filter housing and head with a lint free cloth

Place filter element on filter head and install a new O-ring on the filter housing

Lubricate filter housing threads and O-ring with hydraulic oil

Screw the housing into the filter head and tighten. Do not exceed 90 foot-pounds torque

Sign off on the filter replacement

Thoroughly clean dirt and debris from the immediate area of the pump and its pressure and suction lines

Drain the hydraulic reservoir(s) low enough so that the oil level is below the level of the suction line

Disconnect the pump pressure and suction lines. See Figure 62A

Remove the pump mounting bolts and lockwashers and remove the pump

Remove shaft coupling from pump drive shaft and stub drive shaft

Remove snap ring from inside of shaft coupling

Thoroughly remove all dirt, debris, rust and excessive oil from the splines on the shafts and coupling. Brush off any loose rust. Clean splines with solvent and dry

Upload a photo of the cleaned and dried splines

Warning: Ensure the hitch is not in use and is in a safe state before starting the procedure

Tilt cylinder rod eye lubricated

Sign off on the lubrication procedure

The loader subframes serve as the reservoir for the hydraulic system. The oil level plug is located on the left hand subframe upright, Figure 64. Check the oil level after every 50 hours of operation.

NOTE: On three-point hitch only models, the right hand subframe serves as the reservoir.

Is the machine parked on a level surface?

Is the oil at operating temperature? If not, start the engine and completely dump the loader bucket. Hold the control lever in the dump position until the reservoir is warm.

Is the loader bucket rolled back against the bucket stops and lowered to the ground?

Is the backhoe in the transport position, if so equipped?

Is the oil level plug removed? The oil should be even with the bottom of the hole.

Is oil added as required? Remove the breather from the left hand upright to add oil.

Sign off on the oil level check