* By PRM 150, the oil-level gauge has to be free from fat and dirt because it has a small ventilation hole.
* By PRM gear, the ventilation must be keeped cleanly.
* By PRM 1000 the second delivered ventilation must always be mounted.
* By exceeding the max. mounting angle, please request information (only per e-mail).
* A good alignment of the prop shaft onto the gear is important, also the centering of the flywheel case onto the engine and the damper plate onto the flywheel.
* Mount only prescribed oil coolers.
* The switching path of the control lever must be compared with the switching path of the control lever at the control panel.
* It is recommended to treat the coming in wave with copper fat .
* For engines with less as 4 cylinders, there are often other standards concerning maximum performance.
* The only correct way to change the oil is to draw it off through the drain at the bottom of the gearbox.
* Look at oil level at the oil-level gauge in screwed in position.
N.B. All PRM hydraulic boat reversing gear mechanisms are equipped with a thrust bearing on the outgoing wave