ROPS AS 9W3295 - Caterpillar

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Place the machine in the service position, as shown.
Stop the engine.
Open the left front access door. Secure the access door.
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Note: In order to loosen the breather, a clip must be attached to the breather. The clip is located in the literature compartment with the machines Operation and Maintenance Manual.
Slowly loosen the breather in order to relieve system pressure.
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The drain valve is under the middle of the machine. Note: Refer to Operation and Maintenance Manual, "General Hazard Information" for information in containing fluid spillage.
Remove the cap at the bottom of the drain valve.
Install a drain hose in order to drain the hydraulic tank. Open the drain valve. Allow the oil to drain into a suitable container.Note: Dispose of drained fluids according to local regulations.
Close the drain valve and remove the drain hose. Install the cap at the drain valve.
Tighten the breather in Step 7.Service the Hydraulic System Filters
Note: The pressure must be removed from the hydraulic oil system before the filter can be serviced. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release".Refer to the following topics in order to service the hydraulic system filters:
Operation and Maintenance Manual, "Hydraulic System Oil Filter - Replace (Return In-line Filter)"
Operation and Maintenance Manual, "Hydraulic System Oil Filter - Replace (Hydraulic Demand Fan In-Line Filter)"
Operation and Maintenance Manual, "Hydraulic System Oil Filter - Replace (Hydraulic Swing Circuit Filter)"
Operation and Maintenance Manual, "Hydraulic System Oil Filter - Replace (Pilot Filter)"
Operation and Maintenance Manual, "Hydraulic System Oil Filter - Replace (Return Filter)"Note: All machines have all these filters.Fill the Hydraulic Tank
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Remove the filler plug from the hydraulic tank.
Fill the hydraulic oil tank. See Operation and Maintenance Manual, "Capacities (Refill)".
Clean the filler plug. Inspect the O-ring seal. Replace the O-ring seal if the seal is worn or damaged.
Install the filler plug.
Start the engine. Operate the engine at idling speed for a few minutes.
Operate the control levers in order to allow the hydraulic oil to circulate through all hydraulic circuits.Note: Air may become trapped in the hydraulic system. The pump may cavitate or the machine may move in jerks for several seconds. If these symptoms continue then air is trapped in the hydraulic system. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release" for instructions on releasing the air.
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Place the machine in the service position, as shown.
Stop the engine.
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The sight gauge is located in the engine compartment on the right side of the machine.
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Typical example of the sight gauge when the hydraulic oil is cold.
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Typical example of the sight gauge when the hydraulic oil is warm.
The sight gauge contains three red rings for level markers. Maintain the oil level between the bottom ring and the center ring for a cold machine, and between the center ring and the top ring for a machine at normal operating temperature.
Close all access doors.