320D3 Excavators Caterpillar

Hydraulic System Oil Filter (Pilot) - Replace

Usage:

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Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.

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Illustration 1	g00101435

Park the machine on level ground. Lower the bucket to the ground so that the stick is vertical.
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.
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Illustration 2 g01208340
Slowly loosen the fill/vent plug on top of the hydraulic tank in order to relieve the internal pressure of the hydraulic tank.
After the pressure is relieved, tighten the fill/vent plug.
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Illustration 3 g00101497
Open the access door on the right side of the machine.
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Illustration 4 g06317333
Clean the area in order to keep dirt out of the filter base.
Note: Refer to Operation and Maintenance Manual, "General Hazard Information" for information on containing fluid spillage.
Remove the used pilot filter element from the filter base.
Note: Used filters should always be disposed of according to local regulations.
Clean the filter base.
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Illustration 5 g00101502
Coat the seal of a new pilot filter with clean hydraulic oil.
Install the new oil filter by hand.
Instructions for the installation of the filter are printed on the side of each Caterpillar spin-on filter. For non-Caterpillar filters, refer to the installation instructions that are provided by the supplier of the filter.
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.