Raymarine Autohelm 4000 User Manual

Contents

Raymarine Autohelm 4000 User Manual Manual pdf 11 page image

SEA TRIALSInitial sea trials should be carried out incalm conditions with plenty of sea room.The previously conducted functional testwill have verified that the autopilot isoperating correctly and that you arefamiliar with all of its controls.During first sea trials, the vessel will beconstantly changing heading, and it is,therefore, very important to maintain aconstant look-out.The following initial trial procedure isrecommended:-* Steer on to the desired heading andhold the course steady..l Engage the drive by rotating the clutchlever fully clockwise to its end stops(Fig. 21).0 Press Auto to lock on to the currentheading. In calm sea conditions aperfectly constant heading will bemaintained.0 Alter course to port or starboard inmultiple increments of 1 and 10degrees.Power Steeringl Press Stand by and practice powersteering using-the four course controlk e y s .30” TO STBDl Press Auto twice (within 2 seconds) toreturn to the original automatic. heading.Hand Steeringl Press Stand by and rotate the clutchlever fully anticlockwise for return toAutomatic Sea State ControlDuring the sea trial, the operation of theautomatic sea state control can beobserved. When the autopilot is initially. .42” TO PORTengaged in Auto mode the autoprlot willrespond to all pitch and roll movements.During the first minute of operation, it willbe noticed that repetitive movements ofthe vessel are gradually neglected untilfinally the autopilot will respond only totrue variations in course.To ensure accurate course adjustmentthe sea state control is automatically resetwhenever a .lO degree course change isexecuted..Sea State InhibitWhere maximum course keepingaccuracy is required the automatic seastate control may be inhibited by pressing- 1 and + 1 keys together once.Autopilot acitivity and therefore powerconsumption will be increased but coursekeeping accuracy will be maximised.The automatic sea state control isrestored by pressing the - 1 and + 1 keystogether.N o t e Engaging the autopilot (pushingAuto) or engaging the windvane (bothred keys together) will always restore theautomatic sea state control.1 6

/ 13

Related manuals for Raymarine Autohelm 4000