Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 239Get this manual
POWER TRIM AND TILT
MANUAL RELEASE CIRCUIT (MANUAL VALVE) Operation: Turn manual valve maximum three (3) full turns counterclockwiseWhen the manual valve is loosened, oil will flow unimpeded (without resistance) through the internal pump tubes, thereby facilitating manual tilting or lowering of the outboardTo hold the engine in selected position, the manual valve must be closed again