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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. |
- Operate the machine in order to warm the transmission oil.
- Park the machine on level ground. Lower the implement to the ground and apply slight downward pressure. Engage the parking brake. Stop the engine.
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Illustration 1 g00548873 - Remove the transmission guard from the bottom of the machine.
Note: The drain valve is an ecology drain valve.
- Remove the transmission drain plug at the bottom of the transfer gear case. Attach a hose to a 126-7914 Oil Drain Coupling. Install the threaded end of the coupling into the drain valve in order to unseat the internal drain valve. Allow the oil to drain into a suitable container.
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Illustration 2 g00696110 - The transmission magnetic screen can be accessed through the left side of the rear frame, as shown.
Use the following procedure to clean the transmission magnetic screen:
- Remove bolts (1) and washers (2). Remove cover assembly (3) and seal (5).
- Remove screen tube assembly (6) and suction screen (7).
- Wash the screen tube assembly and the suction screen in a clean, nonflammable solvent.
- Install screen tube assembly (6) and suction screen (7).
- Inspect seal (5) for damage. Replace the seal, if necessary. Install seal (5) and cover assembly (3).
Show/hide tableNOTICE Do not drop or rap the magnets against any hard objects. Replace any damaged magnets.
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Illustration 3 g00505935 - Replace the transmission oil filter.
Reference: Refer to Operation and Maintenance Manual, "Transmission Oil Filter - Replace" for the correct procedure.
- Clean the transmission drain plug. Install the transmission drain plug.
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Illustration 4 g00548986 - Remove the transmission oil filler cap. Fill the transmission with oil through the filler tube.
Reference: Refer to Operation and Maintenance Manual, "Lubricant Viscosities and Refill Capacities" for the correct type of oil and for the correct amount of oil.
- Clean the transmission oil filler cap and install the transmission oil filler cap.
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Illustration 5 g00696127 - Open the access door in the platform behind the cab. Remove the transmission breather.
- Wash the breather in a clean, nonflammable solvent. Allow the breather to dry or use air pressure to dry the breather. Install the breather.
- Start the engine and run the engine at low idle. Apply the service brake.
- Slowly operate the transmission control in order to circulate the oil. Return the transmission to neutral.
- Stop the engine. Inspect the entire transmission for leaks.
- Check the transmission oil level.
Reference: Refer to Operation and Maintenance Manual, "Transmission Oil Level - Check" for the correct procedure.
