GUIDE SPROCKET 5P4745 - Caterpillar

20. Using a screwdriver, remove piston rings (19). 21. Remove seven screws (21). The screws were installed with Thread Lock so they will be difficult to remove. Impact the screw heads first to break the seal, and remove by using additional leverage on the screwdriver as shown.22. Remove retainer plate (17), center pin (20) and the ring that holds the center pin in place. 23. Check the center pin (20) for scratches or pitting at areas (Y). Replace the center pin if necessary.Assemble Swing Motor
Fluid Spillage ContainmentCare must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to "TOOLS AND SHOP PRODUCT GUIDE, NENG2500", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates.1. Measure