TUBE AS 0819706 - Caterpillar

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.
Illustration 1 g06191098
Park the machine on level ground in the servicing position.
Move the hydraulic lockout control to the UNLOCKED position.
Turn the engine start switch to the ON position.
Move the joysticks and the travel levers/pedals to the full stroke positions in order to relieve the pressure in the pilot lines.
Turn the engine start switch to the OFF position and return the lever for the hydraulic lockout control to the LOCKED position.
Illustration 2 g02111812
Pressurized system!The hydraulic tank contains hot oil under pressure. To prevent burns from the sudden release of hot oil, relieve the tank pressure with the engine off by slowly turning the cap approximately 1/8 of a turn until the cap reaches the secondary stop.
Illustration 3 g02275615
Filler cap
(A) LOCK position
(B) PRESSURE RELEASE - START position
(C) PRESSURE RELEASE - END position
(D) OPEN position
Release the pressure that may be present in the return hydraulic circuit with the following procedure. Refer to Illustration 3 for filler cap positions.
Turn the filler cap counterclockwise and move the arrow from position (A) to position (B).
Release the pressure for a minimum of 45 seconds by moving the arrow from position (B) to position (C).
Push the filler cap down and move the arrow from position (C) to position (D).
After the tank pressure is relieved, tighten the filler cap on the hydraulic tank to position (A).
After the pressure is relieved, tighten the filler cap.
Open the access door on the right side of the machine.
Illustration 4 g02112364
Clean the area in order to keep dirt out of the filter base.
Remove the used case drain filter from the filter base.Note: Dispose of used filters according to local regulations.
Clean the filter base.
Illustration 5 g00101502
Coat the seal of a new case drain filter with clean hydraulic oil.
Install the new case drain filter by hand.Instructions for the installation of the filter are printed on the side of each Cat spin-on filter. For filters that are not Cat branded, refer to the installation instructions that are provided by the supplier of the filter.
Start the engine and operate the machine slowly for 10 to 15 minutes. Move each cylinder evenly through several cycles.
Illustration 6 g06191098
Return the machine to the position that is shown above. Check the machine for oil leaks.
Stop the engine.
Check the hydraulic oil level.Reference: For the correct procedure, refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check".
Close the access door.