Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 292Get this manual
Mounting Power Trim Pump 1Route trim hoses and trim limit switch leads thru inlet cover as shownMake sure hoses and leads are free of stress, then install rubber grommets as shown
Power Trim Pump Installed on an Internal Bulkhead
aTrim HosesSwitch LeadsGrommets
2Turn manual tilt knob full left (counterclockwise) before removing valve port capsThis will prevent oil from draining from the pump while attach ing hoses3Attach hoses to valve ports as shownUse caution that hose fittings and hose ports are not damaged by cross threading