ELBOW 6N1858 - Caterpillar

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g03819062
Location of Hydraulic Oil Filter
Illustration 2 g03819066
(1) Type 1 Filter
(2) Type 2 Filter
Open the engine access door. Refer to "Access Doors and Covers".
Remove the Hydraulic tank filler cap. Refer to "Hydraulic System Oil Level - Check".
Remove drain plug from bottom of filter housing (canister) to drain oil from the housing. Drain into a suitable container.Note: Use sockets or box end wrenches when servicing the hydraulic oil filter. Do not use an air wrench, open-end wrenches, or an adjustable wrench.
Unscrew canister from filter mounting base. Filter element will come out with housing. Discard the filter element.Note: For Type 2 Filter (2) squeeze the two tabs on filter element to unlatch it from the canister.
Inspect the O-ring or O-rings on the canister or mounting base for damage and replace them if needed.
Clean the inside of the filter mounting base and clean the inside of the canister.
Apply a thin coat of oil to the O-ring on the new filter element and the O-ring or O-rings on the canister or mounting base.
Insert the new filter element in the canister.Note: For Type 2 Filter (2), ensure that the two tabs are latched onto the side of the canister.
Install the canister onto the mounting base. Element will center on its own as the canister is turned in. Torque to 40 5 N m (30 4 lb ft)
Install the drain plug. Torque to 30 5 N m (22 4 lb ft)
Maintain the hydraulic oil level to the proper level. Refer to "Hydraulic System Oil Level - Check". Do not overfill the hydraulic tank.
Inspect the gasket on the hydraulic tank filler cap for damage. Replace the hydraulic tank filler cap, if necessary. Install the hydraulic tank filler cap.
Close the engine access door.