SPROCKET GP 3897574 - Caterpillar

Personal injury or death can occur if personnel are trapped between the wheel and the frame.The steering system is hydraulically controlled and wheels can crush personnel during movement.Use caution when working between the wheels and the frame. If the wheels must be turned, ensure that all personnel are clear of the machine before any movement.
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
Illustration 1 g00575118
Illustration 2 g00575082
(S/N: 5YW1-233)
Illustration 3 g00791088
(S/N: 5YW234-UP)
Park the machine on level ground and engage the parking brake. Use the engine start switch in order to stop the engine. Wait for the accumulators to discharge completely. If you suspect that the accumulators did not discharge properly, report the condition. See Operation and Maintenance Manual, "Steering Accumulator Pressure - Release" for further information.
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.
Remove the drain plug from the bottom of the filter cover. Install a 88 mm (3.50 inch) long pipe nipple in order to open the internal drain valve. The outer diameter of the nipple should be 25.4 mm (1 inch). Drain the oil into a suitable container. Remove the nipple. Clean the drain plug and install the drain plug. Note: Hand tighten the nipple. Do not use tools.Note: Some oil may not drain from the filter housing when the drain plug is removed from the cover. When you remove the cover and the filter element, be careful to avoid contact with hot oil.
Remove the cover and the filter element. Discard the filter element into a suitable container.
Inspect the cover seal. If the seal is damaged, replace the seal.
Install a new filter element in the filter housing. Install the cover.
Start the engine and operate the engine at low idle. Check the system for leaks and make any necessary repairs.
Keep the parking brake engaged and leave the transmission in the NEUTRAL position.
Illustration 4 g00575122
(S/N: 5YW1-229)
Illustration 5 g00791094
(S/N: 5YW230-UP)
Stop the engine. Maintain the oil level to the "FULL" mark in the upper sight gauge.