JOHN DEERE WORLDWIDE COMMERCIAL & CONSUMER EQUIPMENT DIVISION Powerhead - PA01186 Powerhead - PA01187 CS71 20” - UT10919 CS81 20” - UT10923 CS71 24” - UT10920 CS81 24” - UT10924 CS71 28” - UT10921 CS81 28” - UT10925 Chain Saws OPERATOR’S MANUAL OM PS04120 Revision C