mjm yachts 40z Downeast Owner'S Manual Download | Manualshive

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CHAPTER 6

ELECTRICAL SYSTEM

- 34 -

34z

Please read and understand the important safety precautions included in the included NMMA
publication “Sportfish, Cruisers, Yachts – Owner’s Manual” concerning electrical safety.

6.9

FUSE LOCATIONS & SPECIFICATIONS

Item / Fuse Label Size Type

Bilge Pump 1

5 amp

AGC

In the Bilge Pump Switch at the Dash

Bilge Pump 2

5 amp

AGC

In the Bilge Pump Switch at the Dash

Bilge Pump 3

5 amp

AGC

In the Bilge Pump Switch at the Dash

Bilge Pump 1

7.5 amp

ATC

Fuse Block next to House Battery 1 (Stbd Settee)

Bilge Pump 2

7.5 amp

ATC

Fuse Block next to House Battery 1 (Stbd Settee)

Bilge Pump 3

7.5 amp

ATC

Fuse Block next to House Battery 1 (Stbd Settee)

Amplifier

40 amp

ATC

Fuse Block next to House Battery 1 (Stbd Settee)

Stereo Memory

15 amp

ATC

Fuse Block next to House Battery 1 (Stbd Settee)

DVD Memory

15 amp

ATC

Fuse Block next to House Battery 1 (Stbd Settee)

Emergency Parallel Supply

15 amp

ATC

Fuse Block next to House Battery 1 (Stbd Settee)

High Water Alarm

20 amp

ATC

Fuse Block next to House Battery 1 (Stbd Settee

Hatch)

Sea Fire Supply

10 amp

AGC

House Bus at the Black Fuse Board (Stbd Settee

Hatch)

House Switch Supply

15 amp

AGC

Remote Battery Switch next to House Battery 2

(Port Settee Hatch)

House Remote Supply

5 amp

AGC

Remote Battery Switch next to House Battery 2

(Port Settee Hatch)

Start 1 Switch Supply

15 amp

AGC

Remote Battery Switch next to Start Battery 1

(Stbd Settee Hatch)

Start 1 Remote Supply

10 amp

AGC

Remote Battery Switch next to Start Battery 1 (Stbd

Settee Hatch)

Start 2 Switch Supply

15 amp

AGC

Remote Battery Switch next to Start Battery 2

(Stbd Settee Hatch)

Start 2 Remote Supply

10 amp

AGC

Remote Battery Switch next to Start Battery 2

(Stbd Settee Hatch)

Generator Switch Supply

15 amp

AGC

Remote Battery Switch next to Generator Battery

(Port Settee Hatch)

Generator Remote Supply

5 amp

AGC

Remote Battery Switch next to Generator Battery

(Port Settee Hatch)

Combiner 1 Negative

15 amp

AGC

Battery Combiner next to Air Conditioner Control

(Bridge Deck Hatch)

Combiner 2 Negative

15 amp

AGC

Battery Combiner next to Air Conditioner Control

(Bridge Deck Hatch)

Engine Room Blower

15 amp

AGC

Behind the dash next to the ignition relay

Engine Room Blower

15 amp

AGC

Behind the dash next to the ignition relay

VacuFlush

3 amp

AGC

Top of the Holding Tank (Port Aft Hatch)

ATC - Plastic Fuse
AGC - Glass Fuse

Item / Fuse Label

Size

Type

Location

Horn Fuse

40 amps

ANL

Port Settee Hatch (next to the horn compressor)

Main Panel Fuse

100 amps

ANL

Stbd Settee Hatch (fuse board)

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Summary of Contents for 40z Downeast

Page 1: ...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...

Page 2: ...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 Hot Water Tank 13...

Page 3: ...79 Drive 1A433599 Transom RATIO 1 8 1 PROPELLERS MAKE Mercruiser BLADES 2 48 82366SL BRV3 15 5 2L24CU 2 48 823666L BRV3 14 5 4R24CU MJM YACHTS LLC CONTACT Robert L Johnstone PHONE 617 723 3629 MA MOBI...

Page 4: ...sons PERSONS GEAR Maximum Load 3518 kg RECEIPT BY OWNER In compliance with ISO 10240 1995 E the owner hereby certifies receipt of this manual and has read and agrees to the terms of the Builder s Limi...

Page 5: ...ROLYSIS ZINCS 6 7 BONDING 6 8 ELECTRICAL SAFETY 6 9 FUSE LOCATIONS SPECS CHAPTER 7 FRESHWATER SYSTEM 7 0 GENERAL 7 1 FILLING 7 2 FRESH WATER PUMP 7 3 HOT WATER 7 4 WATER PURIFIER CHAPTER 8 RAW WATER S...

Page 6: ...Please review the topics in this manual before relying on the checklist it is simply an at a glance sheet to insure that you don t overlook anything important 1 3 OPERATING PROCEDURES ENGINE INSPECTI...

Page 7: ...again keeping the marks lined up If the compass is not correct at this time there is an alignment error To correct rotate the compass itself to remove one half of this error Repeat Steps 1 and 2 and t...

Page 8: ...ppression system fitted in the engine space you are required to carry at least one type B 1 extinguisher aboard which is located outboard of the starboard helm seat This should be checked regularly EP...

Page 9: ...ne fuel level sensor and that is on the starboard tank 2 3 FIRE Fire aboard a boat is a serious matter and fire safety begins with fire prevention You can reduce the risk of fire by following common s...

Page 10: ...e begins to run poorly and then not at all Water in the fuel can drive you mad Moisture condenses out of the highly humid air on the inside walls of a fuel tank then runs down into the fuel Water can...

Page 11: ...ing by an experienced diver who has access to a prop shop where the blades can be repaired and the prop re balanced then re installed 8 BAD BATTERY Marine starting batteries die from old age and negle...

Page 12: ...Engine Operating Manual pages 22 23 Engines are accessed by raising the cockpit hatch using the electric lift black toggle switch on the outboard wall inside the starboard cockpit seat locker NEW ENG...

Page 13: ...ual As the water and exhaust exit out the back of the drives it is not as easy to check raw water flow It is recommended to pay close attention to water temperature 176 194 F is normal at cruising spe...

Page 14: ...and water leakage or parts breakage will result Be sure to close the raw water before removing a plug to replace an engine s zinc 3 5 ENGINE AIR INTAKES Diesel engines use a large quantity of air for...

Page 15: ...of the 40z SYNCHRONIZATION Press to automatically synchronize both engines to match RPM of the starboard engine if over 900 RPM and handles within 10 of each other IF LED is YELLOW conditions are not...

Page 16: ...o it springs back to ON The engine will not start unless the shift levers are in NEUTRAL If repeated start attempts are needed the key must be turned back to position OFF first Never engage the starte...

Page 17: ...utral detent position turn the key switches to OFF for at least 30 seconds 3 Resume normal starting procedures Make sure to turn OFF Engine Battery Switches under the electrical panel when leaving the...

Page 18: ...only for docking and maneuvering at slow speed Learn to handle the joystick in a safe and correct manner before you start using the function in tight quarters When the joystick is active the normal en...

Page 19: ...ot Trim Tabs Windlass Up Down 12V Cellphone Outlet Ignition Switches Emergency E STOP 4 3 HELM STATION The helm station console is where most of the operational controls of the boat are located Become...

Page 20: ...The vertical series of lights on either side of the Lenco panel are wired intuitively so by pushing down the starboard tab the lights appear as the bow leans down to starboard What s physically happe...

Page 21: ...some owners have found that a stick with a rubber can tip is a handy way to push the windows out and assist in lowering them without having to stretch over the console We have investigated various el...

Page 22: ...ction If SOS is pressed a series of dots and dashes will be emitted signaling Emergency I need help The double ended arrow in the upper right is a very handy sweep function The spot will continuously...

Page 23: ...n in the open position parallel with the fuel lines These valves should be shut down if inspecting a Racor filter in an emergency or in case of a fire in the engine compartment 5 2 FILLING THE TANKS D...

Page 24: ...ipped with D6 370 HP IPS 500s Displacement Boat Weight Assuming similar hull designs fuel efficiency is a function power weight ratios Less weight equals less fuel for a given HP and we ve already see...

Page 25: ...ge Sweet Spot and just one small Sour Spot to avoid at about 1600 1700 rpm where the most power is applied in overcoming resistance prior to the boat jumping up on a plane at just over 10 knots You ca...

Page 26: ...CHAPTER 5 FUEL SYSTEM 26 34z 40z FUEL CONSUMPTION LOG Engine Hours Consumption Date Marina Fuel Dock Current Since Last Fill Diesel Gals Gals Ho urs COMMENTS...

Page 27: ...tery banks on your boat The house bank consists of 2 245Ah absorbed glass mat D8 AGM batteries The engine bank consists of two 105Ah Group 31 AGM start batteries which are also used to run the windlas...

Page 28: ...rter charger manual for more information When the Shore 1 shore power cable is attached and the Shore 1 select breaker is ON Shore 1 will supply AC power to AC Panel 1 forward side of panel With the i...

Page 29: ...ble charge batteries Leave the house switch ON and turn off the top Main DC disconnect breaker on the DC panel Disconnecting shore power with INVERT LED left ON will cause discharge of the house batte...

Page 30: ...Panel 1 2 switches breakers including Generator double handled switch on top of AC Panels 1 You don t want to start the generator with any load 7 Turn OFF the Inverter Function on the Mastervolt MICC...

Page 31: ...Box has tripped due to a momentary overload Open the generator cover and reset pull up the AC Output Circuit Breaker TO STOP Remove electrical load from the generator by turning off all breakers Allow...

Page 32: ...n not using generator or shore power this switch may remain off It does not control the inverter Its only function is to turn the charger on when shore power or the generator is in use It probably mak...

Page 33: ...to electrolysis and galvanic corrosion To minimize potential damage your boat is fitted with a sacrificial zinc at the transom This zinc is connected to the bonding system of your boat It should be v...

Page 34: ...GC Remote Battery Switch next to House Battery 2 Port Settee Hatch House Remote Supply 5 amp AGC Remote Battery Switch next to House Battery 2 Port Settee Hatch Start 1 Switch Supply 15 amp AGC Remote...

Page 35: ...tee Hatch next to the house battery House Parallel Fuse 250 amps ANL Bridge Deck Hatch fwd wall off the hatch Inverter Charger Fuse 250 amps ANL Stbd Settee Hatch fuse board Inverter Fuse 250 amps ANL...

Page 36: ...lled using the dock hose inlet 7 2 FRESH WATER PUMP at right The freshwater pump is turned on at the DC breaker panel If the pump is heard running continually check that no faucet has been left open I...

Page 37: ...his 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 It is best to clear...

Page 38: ...hapter on propulsion The generator if fitted use separate seacocks and strainers Before using the engine or the generator make sure its seacock is in the INTAKE position While you are checking this sy...

Page 39: ...andle and pumping up and down There is a noticeable difference when the bilge has run dry This pump is most often used as a back up system to the 3 automatic pumps Its capacity is 15 gal min The autom...

Page 40: ...ck to a mooring cleat Never rely on the windlass itself to hold the anchor rode the chain stopper or a cleat should be used to take the load so as to avoid damaging the windlass gears When not using t...

Page 41: ...her and place in the storage tube 10 5 TRANSOM DOOR SEAT OPTION This transom door is intended for swimming showering or stern boarding When closed you d hardly know it was there The starboard section...

Page 42: ...ckers then 2 TURN HOLD the switch in the Head to the right to activate overboard pumping using the macerator pump The control panel lights indicate the level of waste in the holding tank The level can...

Page 43: ...em uses raw water much like the engine for heat exchange There is an intake seacock strainer pump located in the Systems Room under the pilothouse These should be checked frequently and are the first...

Page 44: ...anger on 12 volt DC power To operate the TV turn ON the TV Breaker on the AC Panel Click the Menu button and select Source Video signals maybe acquired from the DVD from a dockside cable TV outlet fro...

Page 45: ...rmine which system has the better reception in the area where you plan to spend the most time For instance in Northeast Harbor ME the preferred system is Direct TV due to higher satellite elevations T...

Page 46: ...r wires attached to it 5 With a small flat head screwdriver loosen the positive and negative screws at the white terminal box Plug the two red wires in the positive side and the two black wires in the...

Page 47: ...me 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 90 connector located in the bottom of t...

Page 48: ...d EVERY TWO MONTHS Check the battery connections and fluid level Lubricate the propeller shaft and torque the propeller nut If operating in only freshwater this maintenance may be extended to every fo...

Page 49: ...if 50 eroded Replace the air filter EVERY 2 YEARS Replace the engine coolant EVERY 500 HOURS OR 5 YEARS WHICHEVER OCCURS FIRST Clean the aftercooler core EVERY 1000 HOURS OR 5 YEARS WHICHEVER OCCURS F...

Page 50: ...er In Battery Disconnects Fuel Shut Off Valves 2 incl Genset over tanks Gen Sep Discharge Thruhull Raw Water Intakes 2 Electric Bilge Pump First Aid Kit AC Raw Water Intake Manual Bilge Pump Systems R...

Page 51: ...51 34z FIGURE 14 2 12 Volt DC WIRING DIAGRAM...

Page 52: ...52 34z FIGURE 14 3 120 Volt AC WIRING DIAGRAM...

Page 53: ...53 34z FIGURE 14 4 SYSTEMS DIAGRAM...

Page 54: ...54 34z FIGURE 14 5 SYSTEMS KEY...

Page 55: ...55 34z FIGURE 14 6 BOAT LIFT BUNK OFFSETS...

Page 56: ...h 13 Are all systems winterized if trip is to freezing weather 14 Check to see that all Battery Switches are OFF 15 Secure and pad all loose gear against movement in transit 16 Wrap piloting chairs in...

Page 57: ...he same manner as the Basic Warranty E Dealers The name and address of Authorized Dealers is available from the Manufacturer The Manufacturer does not authorize the Dealer or any other person to assum...

Page 58: ...such changes in previous products K Registration Cards The Manufacturer recommends that you immediately fill out and return the Warranty Registration Card for the Vessel The information contained on...

Page 59: ..._________ Description of Problem _________________________________________________________ _____________________________________________________________________________ _______________________________...

Page 60: ..._________ ___________________________________ Phone _____________________________ Phone ____________________________ Fax _______________________________ Boat Location _______________________ Contact P...

Page 61: ...the cover slid upwards If the engine start battery is low the parallel switch can be turned on until underway then turned OFF Remember to turn all switches OFF when leaving the boat except the HOUSE b...

Page 62: ...n With the engine controls in Neutral push the left button under the IPS joystick and listen for a confirming beep Briefly test its operation with a slight tap in any direction Make sure that no one i...

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