MJM Yachts 36z Express - Manual (Page 27)

4.6
4.7
4.8
STEERING CONTROL SYSTEM
TRIM TABS
At low or high speeds, it’s not necessary to trim the bow up or
down, but will need tab applied to level the boat from side to
side due to loading or to counteract wind pressure. The boat leans
into a breeze. Tabs are useful for lowering the bow for better
visibility or for slicing through waves to avoid pounding. At higher
speeds when the boat naturally runs flatter and when running
downsea into the back of waves, it’s advisable to raise the bow for
dry running and control, allowing the bow to lift.
The trim tab breaker on the DC panel must be ON. By pushing
STBD bow down, the bow leans down to starboard and the lights
show,the port tab is going down to apply pressure to lift the port
aft corner and side of the boat. Generally push the PORT and
STBD switches together, except to trim side to side.
AUTOPILOT (Optional)
The Electronics breaker (on the DC panel) must be ON for the autopilot to function. Check the
autopilot display and note the rudder angle indicator which helps in maneuvering the boat. When
the compass heading is displayed on the autopilot it is operational and can be activated by
pushing AUTO. The boat will then maintain the displayed heading. Push +1 or -1 for one degree
course corrections or +10 or –10 for ten degree increments. When not activated, the Autopilot
display maybe configured to show BOATSPEED (SOG from the GPS). See the Raymarine
manual.
The Autopilot has been calibrated specifically for 36z operation. If you notice “hunting” rather
than steady course keeping, see the Raymarine Manual to check Configuration parameters
applied to your device or Contact Erik Rochelle at Boston BoatWorka.
WINDSHIELD WIPERS
The 36z is fitted with two windshield wipers. For specific instructions, refer to the user manual.
The wash feature is connected to your boat’s freshwater system and requires that the system be
pressurized (i.e. that the freshwater pump is ON). If the wipers are to be used in sub-freezing
temperatures, a separate system must be installed which utilizes anti-freeze.
CHAPTER 4