CYLINDER 0909229 - Caterpillar

Illustration 1 g00101541
Slowly loosen the filler plug in order to relieve any pressure.
Tighten the filler plug after the pressure is relieved.
Illustration 2 g00101508
Place the machine in the servicing position, as shown.
Move the hydraulic activation control lever to the LOCKED position.
Turn the engine speed dial to the high idle position "10".
Illustration 3 g00102191
Open the rear access door on the left side of the machine.
Illustration 4 g00101365
Open the front access door on the left side of the machine.
Illustration 5 g00326654
The BIO filter is located behind the front access door on the left side of the machine.
Read the value of the pressure gauge that is on top of the BIO filter.If the pressure is between "1 0.2 bars" and "3 0.2 bars", the BIO filter element is clean.If the pressure is "3 0.2 bars" or more, the BIO filter element is clogged. If this occurs, replace the BIO filter element. Refer to Operation and Maintenance Manual, "Hydraulic System Bio Filter Element - Replace" for information on replacing the BIO filter element.