Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 457Get this manual
LEFT HAND NON-RATCHETING
1To aid in future removal of the propeller, liberally coat the propeller shaft splines with one of the following Quicksilver products: Anti-Corrosion Grease (92-78376A6) Special Lubricant 101 (92-13872A1) 2-4-C Marine Lubricant (92-90018A12) Perfect Seal (92-342271) 2Place forward thrust hub over propeller shaft with shoulder side toward propeller3Place propeller on propeller shaft and slide it up against thrust hubaForward Thrust HubPropeller Shaft 4Place continuity washer (if equipped) onto shoulder of rear thrust hub5Place rear thrust hub, tab washer and propeller nut on propeller shaft6Thread propeller nut onto propeller shaft until nut is recessed into tab washer7After propeller nut is recessed into tab washer, tighten nut securely [minimum of 55 Ibft(74.5 Nm) torque]8Bend of the tabs of tab washer down in grooves of rear thrust hub to secure propeller nut(If tab washer tabs do not align with slots, continue to tighten propeller nut to obtain alignmentDO NOT loosen nut to align tabs