COVER GP-VALVE MECHANISM 4211877 - Caterpillar

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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.
The transmission oil reservoir (1) for the scraper is located on the left side of the engine.Note: You should move the ejector forward in order to make access to the transmission easier.Operate the machine until the transmission oil is warm. Park the machine on a level surface. Lower the bowl.
Illustration 1 g00669477The drain (3) for the transmission oil reservoir is located at the bottom of the reservoir.
Illustration 2 g00474613
Clean the area around the drain plug (3) for the transmission. Remove the drain plug.
Open the drain valve (4). Allow the oil to drain into a suitable container.
Close the drain valve.
Clean the drain plug. Install the drain plug. The oil must be drained from the suction screen (6) of the transmission in order to remove the oil from the transmission.
Illustration 3 g00474619
The housing for the suction screen is located below the transmission on the left side of the scraper engine. Clean the area around the housing (6) for the suction screen.
Remove the line (5) from the housing for the screen. Allow the oil to drain into a suitable container.
Install the line. Note: The suction screen should be cleaned at this time. Refer to Operation and Maintenance Manual, "Suction Screen (Transmission Scavenge) - Clean" for further information.
Clean the area around the filler cap (2). Remove the filler cap . Fill the transmission with oil through the filler tube (2). Fill the transmission to the "FULL" mark in the sight glass (1). Refer to the Operation and Maintenance Manual, "Capacities (Refill)" and the Operation and Maintenance Manual, "Lubricant Viscosities".
Clean the oil filler cap. Install the oil filler cap.
Start the engine for the tractor. Start the engine for the scraper. Run the engines at low idle. Inspect the transmission for leaks.
Slowly operate the transmission control in order to circulate the oil.
Maintain the oil level between the "FULL" and "ADD OIL" marks on the sight glass (1). Add oil through the filler tube, if necessary.
Stop the engines.