GEAR 4Y2942 - Caterpillar

Personal injury or death can result from machine articulation or movement. Machine frames can move and a person can be crushed. Connect the steering frame lock between the front and rear frames before working on the machine.Before operating the machine, place the steering frame lock in the stored position.Failure to place the steering frame lock into the stored position before operating can result in loss of steering.
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
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 for a few minutes in order to warm the transmission oil.
Park the machine on a level surface. Lower the bucket to the ground and apply slight downward pressure. Engage the parking brake. Stop the engine.
Illustration 1 g00931311
Remove transmission drain plug (2). Install a 1 inch NPT pipe nipple, 100 mm (4 inch) and drain the oil into a suitable container.
Remove the pipe nipple and install the drain plug. Tighten the drain plug to 68 7 N m (50 5 lb ft).
Change the transmission oil filter element. Reference: For the correct procedure, refer to the Operation and Maintenance Manual, "Transmission Oil Filter - Replace".
Remove cover (1) and the magnetic screen tube assembly from the housing.
Illustration 2 g00908119
Remove the magnetic tube assembly from the screen.
Wash the tube assembly and the screen in a clean, nonflammable solvent.
Clean the magnets with a cloth, stiff bristle brush, or pressure air.
Do not drop or rap the magnets against any hard objects. Replace any damaged magnets.
Clean the cover. Inspect the cover seal. Replace the seal if damaged.
Insert the magnets in the screen.
Insert the screen, the tube, and the magnets in the housing.
Install the seal, the cover, and the cover bolts.
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Remove hose assembly (3) from torque converter screen assembly (4) and drain the oil into a suitable container. Remove screen assembly (4) from the bottom of the torque converter housing.
Illustration 4 g00908126
Wash screen assembly (4) in a clean, nonflammable solvent. Inspect the screen assembly seal. Replace the seal if damaged.
Install the screen assembly in the torque converter housing and connect the hose assembly.
Illustration 5 g00980854
Remove transmission breather (5). Wash the transmission breather in clean, nonflammable solvent. Install the breather.
Illustration 6 g03654508
Remove transmission oil level gauge breather (6). Wash the transmission oil level gauge breather in clean, nonflammable solvent. Install the breather.
Illustration 7 g03654509
Remove oil filler cap (7) and fill the transmission with oil. Note: The oil level varies significantly when the engine is stopped. The oil level should be above mark (9) before the engine is started.Reference: For information on lubricants and refill capacities, refer to the Operation and Maintenance