RETAINER 1426219 - Caterpillar

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Place the machine in the servicing position, as shown.
Move the hydraulic activation control lever to the LOCKED position. Stop the engine.
Illustration 2 g00101541
Slowly loosen the filler plug in order to relieve any pressure.
Tighten the filler plug after the pressure is relieved.
Place the joysticks in the HOLD position.
Start the engine. Turn the engine speed dial to the high idle position "10". DO NOT MOVE ANY IMPLEMENTS.
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Open the rear access door on the left side of the machine.
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Open the front access door on the left side of the machine.
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The Fine Filtration 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 Fine Filtration filter.
If the pressure reading is below "1 0.2 bars", the pressure gauge should be inspected for damage.
If the pressure reading is between "1 0.2 bars" and "3 0.2 bars", the filter element is clean.
If the pressure is "3 0.2 bars" or more, the filter element needs to be replaced.Note: Refer to Operation and Maintenance Manual, "Hydraulic System Filter Element (Fine Filtration) - Replace" for the correct procedure.