Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 347Get this manual
POWER TRIM
END CAP INSPECTION
1Inspect seal and O-ring for cuts and abrasionsIf replacement is required, install BRUSH and SEAL KIT 828714A12Inspect bushing for wearIf bushing appears to be excessively worn grooves, scratches, etc install END FRAME ASSEMBLY (COMPLETE) 828715A1