YOKE GP 4390978 - Caterpillar

This book is a guide to equipment care. The illustrated, step-by-step instructions are grouped by servicing intervals; items without specific intervals are listed under "When Required". Circled numbers in the Lubrication and Maintenance Chart are to key the charted items to the instructions in the book.Use the service meter to determine servicing intervals. Service meter readings are based on engine speed, not clock hours. Calendar intervals (daily, weekly, 2 weeks, etc.) shown may be used instead of service meter intervals if it provides more convenient schedules.Perform interval items at multiples of the original requirement. For example, at 100 service hours or 2 weeks, also perform those items listed under "Every 10 Service Hours or Daily".