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Owner's Manual
Dear 40z Owner:
Congratulations on becoming Captain and Owner of the world's best built and most fuel efficient yacht of its size.
The enclosed copy of the 40z Owner's Manual should further contribute to your enjoyment and proficiency afloat.
This manual was created jointly with Zurn Yacht Design, Boston BoatWorks and MJM Yachts. Our experience
with the first 102 boats (34z's and 29z's included) has been incorporated to make this manual as useful and relevant
as possible. Keep in mind that there maybe some variances such as location of the breakers on the panel. And, from
time-to-time we will change specifications to keep pace with changes made to improve the boat.
When addressing a problem with a specific piece of equipment, this 40z Owner's Manual is to be regarded only as a
preliminary source of information. The equipment manufacturer's own manual with trouble-shooting procedures,
etc. is the primary source and authority.
A National Marine Manufacturer's Association (NMMA) publication Sportfish, Cruisers, Yachts accompanies, and
forms part of, this 40z Owner Manual. This booklet has many universal handling and operating tips worth
reviewing.
This Owner's Manual is designed to be a living document, not only for builder updates but for your own use and
record. Each boat is provided with a copy of the current Manual organized in a STAPLES "Mini-Ring" type binder
that allows you to add pages as needed.
One of the great advantages of purchasing a series-built or semi-custom design is that owners have the benefit of
learning from one another. So, with your continued input and comments we can keep adding useful information and
helpful hints to this manual.
Part of the ISO CE Mark Certification Program is confirmation by the owner that the manual has been received.
Please sign the extra page No. 3 included in the Manual as a receipt and return it in the stamped envelope provided.
Best wishes for fair winds and sunny skies. On behalf of the builder and designer, we are most appreciative, and I
am particularly honored, that you have chosen the 40z.
Note: This manual is published in accordance with ISO standard 10240:1995E Small Craft - Owner's Manual
89 Pinckney Street, Boston MA 02114
Tel 617-723-3629 Fax 617-723-3643
July 2009
Robert L. Johnstone
Chief Operating Member
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Table of Contents
Related Manuals for mjm yachts 40z Downeast
Summary of Contents for mjm yachts 40z Downeast
- Page 1 The enclosed copy of the 40z Owner’s Manual should further contribute to your enjoyment and proficiency afloat. This manual was created jointly with Zurn Yacht Design, Boston BoatWorks and MJM Yachts. Our experience with the first 102 boats (34z’s and 29z’s included) has been incorporated to make this manual as useful and relevant as possible.
- Page 2 Length Overall (Including Swim Platform and Bow Roller) 43.1 ft. Length on Deck 40.0 ft. Length Waterline 31.3 ft. Beam 12.0 ft. Hull Draft/Max Draft with Drives Down 2.4 ft/3.3 ft. Displacement (1/2 load) 17,900 lbs. Fuel Tanks (combined) 350 gals. Fresh Water Tank 100 gals.
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Page 3: Boat Information
BOAT INFORMATION BOAT MODEL: 40z Downeast HULL SERIAL # (HIN): EOU40Z05E909 DESIGN PATENT: Patent No. US D475.338S (3Jun03) DELIVERY DATE: ________ REGISTRATION #: ENGINES MAKE: Cummins MODEL: QSD4.2 350 HP SERIAL #: 88417170 stbd 88417163 port Cummins 24 Hour Service... - Page 4 PLEASE SIGN ONE OF THE TWO COPIES OF THIS PAGE AND RETURN IT IN THE ATTACHED STAMPED ENVELOPE TO: MJM YACHTS at 89 Pinckney Street, Boston MA 02114. Denotes an extreme intrinsic hazard exits which would result in high probability of death or irreparable injury if proper precautions are not taken.
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Page 5: Table Of Contents
TABLE OF CONTENTS CHAPTER 1 OPERATION CHAPTER 7 FRESHWATER SYSTEM GENERAL GENERAL QUICK START GUIDE FILLING OPERATING PROCEDURES FRESH WATER PUMP NAVIGATION HOT WATER TOWING WATER PURIFIER HAULING OUT CHAPTER 8 RAW WATER SYSTEM CHAPTER 2 SAFETY EQUIPMENT GENERAL GENERAL ENGINE RAW WATER FUEL SHUT-OFFS FIRE... -
Page 6: Chapter 1 Operation
CHAPTER 1 OPERATION GENERAL This manual has been compiled to help you operate your yacht with safety and pleasure. It contains details of the yacht; the equipment supplied or fitted, its systems, and information on its operation and maintenance. Please read it carefully, and familiarize yourself with the yacht before using it. -
Page 7: Towing
CHAPTER 1 OPERATION Compass Heading & Calibration There are 3 heading references for navigation on the 40z: (1) The compass on the dash, (2) Autopilot digital compass, and (3) GPS COG (Course Over Ground). All of these headings should be within a degree or so of each other when underway. If not, it is recommended that differences be recorded on a deviation card after following the calibration method outlined below or employing the services of a compass adjuster. -
Page 8: Chapter 2 Safety Equipment
CHAPTER 2 SAFETY EQUIPMENT GENERAL Spend time reviewing where your safety equipment is and how it functions BEFORE you need it. Remember, the best way to protect yourself and others from accidents is to eliminate potential causes of accidents before they occur. Good seamanship and common sense go a long way in this endeavor. -
Page 9: Fire
CHAPTER 2 SAFETY EQUIPMENT First Aid Kit Not a place to scrimp. It is advisable to carry a good, comprehensive, and well-organized (by injury) marine first-aid kit with manual. We recommend that it be stored in the head and that everyone onboard be informed of its location. -
Page 10: Chapter 3 Propulsion System
CHAPTER 3 PROPULSION SYSTEM INTRO - THE TOP 10 CAUSES OF ENGINE FAILURE It doesn’t happen often and if you’re familiar with the most common causes of engine failure you can cut down on the chances of a breakdown. As an introductory to this chapter, we want to familiarize you with this list of causes, compiled by Motorboating Magazine (February 2006). - Page 11 CHAPTER 3 PROPULSION SYSTEM Prevention is easy: Visually inspect cooling hoses and squeeze them to be sure they retain shape and set. 6. CLOGGED INTAKE: Floating debris in the water is another culprit. Things like discarded plastic baggies, weeds, etc. can plug up the raw-water intake. You can avoid this problem by visually inspecting the strainer basket.
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Page 12: General
CHAPTER 3 PROPULSION SYSTEM PROPULSION SYSTEM GENERAL Your 40z is propelled by twin QSD4.2 320 HP Cummins diesel engines with Mercruiser Bravo 3x Outdrives. There are 3 Operating Manuals CUMMINS ENGINE OPERATING AND MAINTENACE MANUAL (EOM) CUMMINS OWNER’S MANUAL FOR SMARTCRAFT (SOM) Shows Control Levers on Cover MERCURY OWNER’S MANUAL FOR SMARTCRAFT (MOM) Plain Black Rather than try to duplicate the excellent instructions in each, this MJM Owner’s Manual will refer to the appropriate pages in the following manner: See “EOM 22-23”... -
Page 13: Cooling
CHAPTER 3 PROPULSION SYSTEM The engine may seize if it is operated when seawater intake is restricted or if load is applied without allowing the water temperature (engine) to warm up. During the first 10 hours of operation, full load should only be applied for short periods. Never run the engine for a long period at a constant RPM during this period. -
Page 14: Air Intakes
CHAPTER 3 PROPULSION SYSTEM CORROSION PROTECTION See EOM 55-127 In addition to transom zincs, there are engine and drive zincs and care must be taken of the drive housing and coating of the propulsion unit. Be sure to inspect and recoat if there are any scratches or whenever the boat is hauled. - Page 15 CHAPTER 3 PROPULSION SYSTEM There are 5 positions (front to back). FORWARD IDLE FORWARD NEUTRAL IDLE REVERSE REVERSE SUDDEN MOVEMENT HAZARD This control lever governs both throttle and shifting functions. The boat may start to move abruptly when the marine gear is engaged: Ensure the boat is clear of all obstacles forward and aft.
- Page 16 CHAPTER 3 PROPULSION SYSTEM DOCKING MODE – Probably not used much with AXIUS, because the joystick will be used for docking. This feature reduces throttle effect on RPM to 50% of its normal capacity. To DISENGAGE, shift engines into neutral and press the “dock” button. STARTING (See EOM 29-32) Before starting the engine, make sure (1) the raw water intake seacock handles are...
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Page 17: Starting
CHAPTER 3 PROPULSION SYSTEM 3.10 STOPPING 1. Place the remote control lever in neutral. 2. Operate the engine at idle speed for several minutes to allow the turbocharger and engine to cool. 3. Turn the key switch to the "OFF" position. EMERGENCY STOP SWITCH See pic in 3.8. -
Page 18: Chapter 4 Steering System
CHAPTER 4 STEERING SYSTEM STEERING SYSTEM The 40z has an integrated, electronically controlled hydraulic power steering system which turns the two Mercruiser stern drives. When running, the 40z is steered as with outboards. Thrust of the propellers is directed more immediately and precisely from side to side through a 26° arc to steer the boat.. -
Page 19: Helm Station Picture
CHAPTER 4 STEERING SYSTEM HELM STATION The helm station console is where most of the operational controls of the boat are located. Become familiar with these before you need to use them. In addition, make sure that when you are using the boat, even if you are not using a specific piece of equipment, which the circuit breakers are on for any equipment you might need. -
Page 20: Trim Tabs
CHAPTER 4 STEERING SYSTEM CONSOLE SWITCH PANEL With the exception of the Anchor Washdown which is activated along with the “Windlass” breaker (and must have the “Water Pressure” switch ON as does the washer function of the “Wiper” switch) functions of this panel on the console are activated by turning on their respective breaker switches on the DC Electrical Panel in the main saloon. -
Page 21: Windshield Wipers
CHAPTER 4 STEERING SYSTEM PRECISION PILOT & SKYHOOK operating instructions, please read carefully the section beginning on SOM 35. Briefly, when engines are first started the “standy” light blinks. Once the engines are taken out of nuetral or the joystick is operated the “standby”... -
Page 22: Helm Position Riser
CHAPTER 4 STEERING SYSTEM REMOTE SPOTLIGHT CONTROL The spotlight is mounted on the bowrail where reflection off the foredeck and stainless fittings is eliminated.To activate, the “searchlight” breaker on the DC panel must be ON and the “S” for spot or “F” for floodlight must be depressed. The center button with the arrows controls the direction. -
Page 23: Chapter 5 Fuel System
CHAPTER 5 FUEL SYSTEM GENERAL It is important to understand the fuel system aboard your boat. Diesel fuel is different than gasoline. In most respects it is safer, however precautions need to be taken to maintain the safety of your boat. Please study the safety precautions in the NMMA publication “Sportfish, Cruisers, Yachts –... -
Page 24: Racor Fuel Filters
CHAPTER 5 FUEL SYSTEM RACOR PRIMARY FUEL FILTERS Racor Filters are your first line of defense against bad fuel and are installed just after the shut-off valves in the fuel lines, inside the Systems Room, on either side bulkhead just forward of the generator. - Page 25 CHAPTER 5 FUEL SYSTEM boat by recording the speed and fuel rate at various RPMs. We’ve already seen that the lighter Cummins Mercruiser sterndrive installation with 320 HP 6 cylinder QSD4.2 diesels on hull #3 burns approximately 2 gallons per hour less (18 gph) than the Volvo 370’s at cruising speeds, achieving 1.4 nmpg at 25 knots.
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Page 26: Fuel Consumption Log
CHAPTER 5 FUEL SYSTEM 40z FUEL CONSUMPTION LOG Engine Hours Consumption Date Marina/Fuel Current Since Diesel Gals/Ho COMMENTS Dock Last Fill (Gals) - 26 -... -
Page 27: Chapter 6 Electrical System
CHAPTER 6 ELECTRICAL SYSTEM GENERAL The 40z’s electrical system may be more advanced than what you are accustomed to. It combines DC and AC power in several ways. Most of the electrical components on your boat use DC power. 12 volt DC power is stored in two 8D House Batteries and two 31G Start Batteries, totaling 700 Ampere Hours of capacity. - Page 28 CHAPTER 6 ELECTRICAL SYSTEM DC Breaker Panel This custom MJM panel includes digital readouts for voltage and amperage drain on top. The three round knobs are dimmers for main saloon and pilothouse overhead lights. If it appears as though a set of lights are not going on when the breaker switch is turned on, check to see that the dimmer switches haven’t been turned all the way off.
- Page 29 CHAPTER 6 ELECTRICAL SYSTEM while the engine is running. The generator (if fitted) start battery dedicated GENERATOR battery switch which also must remain on when running. To turn ON a battery switch, slide down the cover and push in the rocker switch until it lights up. Parallel Battery Switch In the event of a dead or weak engine battery, the parallel battery switch (marked AUTO on the left side) can be switched on...
- Page 30 CHAPTER 6 ELECTRICAL SYSTEM AC GENERATOR (Option) See Northern Lights M673L3 6 KW 60 Hz 1800 RPM Generator Operating Manual. Refer to the manufacturer's manual for more information regarding the generator. Break-In Period Change engine oil and filter at 50 hours and again at 100 hours. Oil consumption is greater until piston rings are seated.
- Page 31 CHAPTER 6 ELECTRICAL SYSTEM TURN BREAKERS ON for the items you wish to operate. Note: if the generator starts, but no AC voltage is seen at the panel, check first that the selector switches (sliding interlocks) at the top of the AC panel are ON. If so, there is a possibility the generator was overloaded and the AC breaker on the generator Control...
- Page 32 CHAPTER 6 ELECTRICAL SYSTEM MASTERVOLT INVERTER/CHARGER Mastervolt PN 37014005 12/4000-200A Mass Combi Inverter Charger is fully automatic. Under normal circumstances there is no need for adjustment or operation besides switching on and off. The Mass Inverter Charger Control (MICC), shown at right in the “Charge” mode, is a digital remote panel switches on and off the Mass Combi unit but is a battery consumption meter.
- Page 33 CHAPTER 6 ELECTRICAL SYSTEM DO NOT LEAVE THE INVERT SWITCH “ON” ON THE MICC PANEL ALONG WITH THE INVERTER/CHARGE SWITCH “ON” ON THE AC PANEL IF YOU ARE NOT INVERTING AS THIS MAY DRAW 10-12 AMPS EVEN IF NO AC DEVICE IS TURNED ON. OR, YOU MAY END UP WITH DEAD BATTERIES (All of them if the Parallel Switch is “ON”...
- Page 34 CHAPTER 6 ELECTRICAL SYSTEM Please read and understand the important safety precautions included in the included NMMA publication “Sportfish, Cruisers, Yachts – Owner’s Manual” concerning electrical safety. FUSE LOCATIONS & SPECIFICATIONS Item / Fuse Label Size Type Bilge Pump 1 5 amp In the Bilge Pump Switch at the Dash Bilge Pump 2...
- Page 35 CHAPTER 6 ELECTRICAL SYSTEM Start Battery 1 Fuse 200 amps Stbd Settee Hatch (behind start battery) House Battery 1 Fuse 200 amps Stbd Settee Hatch ( next to the house battery) Start Battery 2 Fuse 200 amps Stbd Settee Hatch (behind start battery) House Battery 2 Fuse 200 amps Port Settee Hatch (next to the house battery)
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Page 36: Chapter 7 Freshwater System
CHAPTER 7 FRESHWATER SYSTEM GENERAL The 40z incorporates a pressurized freshwater system from either of two sources (1) a single 100-gallon tank under the main saloon sole that supplies a pump which maintains a constant pressure in the system, or (2) a dock hose inlet located to port in the cockpit as shown at right. - Page 37 CHAPTER 7 FRESHWATER SYSTEM GENERAL ECOLOGY SEAGULL WATER PURIFIER [See also Seagull owner’s manual] The galley is fitted with the best available water purifier in the world. It is used on 85 airlines. This purifier has a cartridge (in stainless pressure vessel under sink) that should be replaced annually or when reduced water flow indicates that it has become plugged with sediment.
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Page 38: Chapter 8 Raw Water System
CHAPTER 8 RAW WATER SYSTEM GENERAL Raw water (seawater) is used to cool the engine and the generator. It is also used in the washdown and air-conditioning options. Wherever raw water enters the boat, it does so through a seacock, which is a valved thru-hull penetration with double-clamped hoses. ENGINE RAW WATER The engine intakes are alongside the engines through 3-way seacocks as seen in the chapter on propulsion. -
Page 39: Chapter 9 Gray Water System
CHAPTER 9 GRAY WATER SYSTEM GENERAL Gray water is liquid that can legally be pumped overboard, generally from sink drains, shower drains, and bilges. Your boat also directs deck run-off to of all gray water through common drains (port & starboard) in the transom. GRAY WATER SUMPS There are two gray water sump boxes aboard your boat located (a) in the storage compartment under the hatch in the cabin sole between the shower and head and (b) below the bottom... -
Page 40: Privacy & Sunscreen Curtains
CHAPTER 11 INTERIOR EQUIPMENT 10.1 GENERAL Although all the exterior equipment on your boat was selected with marine service in mind, it is helpful to rinse the boat with freshwater after exposure to saltwater. 10.2 ANCHOR WINDLASS Refer to the manual that came with your windlass for specific operating instructions. The windlass draws power from the engine start battery. - Page 41 CHAPTER 11 INTERIOR EQUIPMENT The advantage of inside curtains is that they don’t become dirty over time or require storage wet from dew when departing in the morning. Rolling of the curtain is best accomplished by laying first an end of the large side curtains over the top of the pilothouse table so that the end closest to you is just about touching the floor –...
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Page 42: Marine Head System
CHAPTER 11 INTERIOR EQUIPMENT 11.1 MARINE VACUFLUSH HEAD SYSTEM Waste discharge regulations vary by location. Check with local authorities. The waste system aboard your boat employs freshwater and a vacuum generator. The freshwater pump breaker and Vacuflush breaker must both be on (DC panel) for the system to work. Further controls are located on a panel in the head (shown). - Page 43 CHAPTER 11 INTERIOR EQUIPMENT 11.4 SHARP GRILL 2 CONVECTION MICROWAVE This unit offers several cooking modes which maybe operated without shorepower by utilizing the inverter for AC power and turning ON the MICROWAVE switch on AC Panel #1. Please refer to the Sharp Users Manual for operating instructions and precautions.
- Page 44 CHAPTER 11 INTERIOR EQUIPMENT 11.8 SIRIUS SATELLITE RADIO ACTIVATION (Optional) To activate Sirius Satellite Radio services on the Clarion CMD-5, you will need the serial number: (1) Push the “MENU” button in the upper right set... (2) Using the up and down scroll to “SID DISP”, then press “ENTER”. (3) The first 6 digits of the serial number will be displayed.
- Page 45 CHAPTER 11 INTERIOR EQUIPMENT 11.10 KVH M3 SATELLITE TV RECEIVER (Option) To activate the receiver, turn ON the breaker labeled “Satellite Dish” on the DC Panel. Then be sure that the KVH dish control and receiver are turned on in the Entertainment Center. Follow the instructions in the KVH Owner’s Manual to initiate subscription and enjoy television reception aboard the boat.
- Page 46 CHAPTER 11 INTERIOR EQUIPMENT back inside of the hole. The only cable that remains on top of the dome platform is the black RG6 cable for the KVH dome shown. (3) Run the radar dome harness through the hole in the front of the strut, just behind where the radar dome will sit.
- Page 47 CHAPTER 11 INTERIOR EQUIPMENT (6) Look for a yellow tag inside of the KVH dome with a screw; Very important, this screw is for shipping purpose only. This screw needs to be removed before you can run the unit (7) Connect the RG6 cable to the 90º connector, located in the bottom of the KVH dome. Once this is done, mount the dome on the strut with the bolts provided.
- Page 48 CHAPTER 13 MAINTENANCE SCHEDULE 12.1 MAINTENANCE SCHEDULE – STERNDRIVE MODELS Refer to EOM 50-52, 55-127. Some of the items you may choose to leave to professionals, but many you can do yourself. In particular, it is a good idea to have a certified mechanic perform check-ups from time to time on the engine, generator, and any other key equipment installed onboard.
- Page 49 CHAPTER 13 MAINTENANCE SCHEDULE 50 hours if operated at idle for prolonged periods of time). • Check the continuity circuit for loose or damaged connections. If equipped with MerCathode®, test the unit output. • Check the engine alignment. • Torque the engine mounts. •...
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Page 50: 14.1 - Emergency Diagram
14.1 - EMERGENCY DIAGRAM First Aid Kit AC Raw Water Intake Electric Bilge Pump Electric Bilge Pump Manual Bilge Pump Systems Room Fireboy Genset Raw Water In Battery Disconnects Fuel Shut-Off Valve (over tanks) Fuel Shut-Off Valves Engine Room Fireboy (2- incl Genset -over tanks) Gen Sep Discharge Thruhull... - Page 51 FIGURE 14.2 - 12 Volt DC WIRING DIAGRAM - 51 -...
- Page 52 FIGURE 14.3 - 120 Volt AC WIRING DIAGRAM - 52 -...
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Page 53: Systems Diagram
FIGURE 14.4 - SYSTEMS DIAGRAM - 53 -... -
Page 54: Systems Key
FIGURE 14.5 - SYSTEMS KEY - 54 -... - Page 55 FIGURE 14.6 – BOAT LIFT & BUNK OFFSETS - 55 -...
- Page 56 FIGURE 14.7 – TRAILER LOADING CHECKLIST Check that bilges are clean and dry and that companionway is dammed or that a trucking drain is installed to prevent rainwater from entering interior if the boat is loaded with bow down and rain forecast for trip. Check that all cabinet doors, refrigerator latch and drawer latches are pushed shut to the lock position.
- Page 57 CHAPTER 15 BOSTON BOATWORKS LIMITED WARRANTY Manufacturer’s Sole and Limited Warranty for Pleasure craft A. General. This document sets forth the sole and limited warranty, which Boston BoatWorks (“The Manufacturer”) is giving you in connection with the “Vessel” which you are acquiring. It is the only warranty being given by the Manufacturer and should be reviewed carefully together with manuals and other instructional material provided by the Manufacturer before you take delivery of the Vessel.
- Page 58 Manufacturer, and perform maintenance to the Vessel as recommended in the Manuals and as required by periodic inspections by an Authorized Dealer or Service Center. H. Warranty Claims. To make a claim under this warranty you must do the following Report the defect to the Manufacturer or Authorized Dealer within thirty (30) days of discovering it, and when possible prior to incurring any expense, identifying the Vessel and submitting photographs (email digital preferred).
- Page 59 BOSTON BOATWORKS Pre-Approval for Warranty Please Fax Claim to: (617) 561-9222 Date_______________________ Boat Model_______________Boat Name_________________________Hull #______________ Dealer__________________________Contact Person__________________________________ Phones___________________Fax___________________ Email_________________________ Description of Problem: _________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ Description of Resolution: _______________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ ____________________________________________________________________________ _____________________________________________________________________________ Estimated Completion Date: ________________ Labor Rate $ _____________________ Total Materials Cost $ _______________________ Total Labor Hours _________________ Total Estimated Cost $ _______________________ AMOUNT APPROVED: $_____________________ APPROVED BY:_________________...
- Page 60 Warranty Claim Application Form Boston BoatWorks, LLC 256 Marginal Street, East Boston MA 02128 Phone: (617) 561-9111 Fax: (617)561-9222 Date:______________ Boats Name:______________________ 40z Hull # ________________ Dealer/Service_______________________ Boat Owner:_________________________ Address: ____________________________ Address:____________________________ ___________________________________ ___________________________________ Phone:_____________________________ Phone # ____________________________ Fax:_______________________________ Boat Location:_______________________ Contact Person:______________________ Delivery Date:_______________________ Description of Defect (please include photos)
- Page 61 QUICK START GUIDE CHAPTER 16 Disconnect Shore-side Connections To disconnect shore power cords, turn off all AC loads on the boat and make sure the main AC breakers on the AC panel (the double breakers) are all OFF. Then disconnect the cord at the dock end first. Disconnect the cord at the boat and close the shore power inlet cover.
- Page 62 Check the DC panel to insure that the house bank has a reasonable charge (12.2V or greater). If there is any problem, now is the time to learn of it. Make sure the DC MAIN breaker is ON, as well as any other circuits that you might need in the course of your trip.
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