PUMP-TANK FILLING TAILS

Function and technical context

The REC55133GF tail filling tank-pump is part of the tail transmission hydraulic system on boats with an inboard or inboard-outboard engine, acting as a key element in the oil filling and pressurization circuit of the stern unit. Its task is to ensure that the hydraulic tank is maintained at the appropriate level and pressure for the correct operation of the tail or external transmission, thus allowing orientation maneuvers and drive gearing without fluid losses or pressure drops. If this component fails or presents internal leaks, the transmission may be left without the necessary pressurization, which results in loss of boat steering, difficulties in changing gears or even serious damage to the internal components of the tail due to lack of hydraulic lubrication.

When to replace this part?

The most common symptoms that indicate the deterioration of this pump-reservoir are: progressive decrease in the hydraulic oil level without visible external leaks, slow or irregular response in the tail transmission maneuvers, and presence of air bubbles or foam in the hydraulic reservoir indicative of internal cavitation. It is recommended to review the condition of this component during each seasonal maintenance, checking for possible cracks in the tank body, the condition of the seals and the integrity of the hydraulic connections. Replacing this assembly preventively at the first symptoms prevents more serious transmission breakdowns and guarantees navigation safety.