Hunter Marine H31 Operator's Manual
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Hunter Marine H31 Operator's Manual

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Operator's
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Manual
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H31
H31
V.061909 • P/N 1031379

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Summary of Contents for Hunter Marine H31

  • Page 1 Operator's Operator's Manual Manual V.061909 • P/N 1031379...
  • Page 3 Hunter 31 • Operator's Manual Thank You! From the General Manager Dear Hunter Owner, Congratulations and welcome to the Hunter family! As a Hunter owner, you will enjoy the quality and the attention to detail for which Hunter Boats are renowned. Hunter and your dealer are committed to your service and total satisfaction.
  • Page 4 Hunter 31 • Operator's Manual As the owner of a Hunter, you have chosen one of the finest boats money can buy. Hunter Corporation, is one of America’s oldest privately held boating companies. In February 1996 Hunter became an employee ownership company. We continue to be dedicated to giving you a quality boat that will bring you years of enjoyment whether you’re spending a day at the marina or cruising down a waterway.
  • Page 5 Hunter 31 • Operator's Manual Operator’s Manual at a Glance 1. Introduction 1. Introduction 2. Documents and Forms 2. Documents and Forms 3. Warranty 3. Warranty 4. Boating Safety 4. Boating Safety 5. Fuel System 5. Fuel System 6. Underwater Gear 6.
  • Page 6 Hunter 31 • Operator's Manual How do I prevent Carbon Monoxide buildup? ..... pg.4.6 How do I fuel my boat? ..pg.

  • Page 7: Table Of Contents

    Hunter 31 • Operator's Manual Table of Contents 1. Introduction 5.2 Fuel Supply Lines and Hoses 1.1 The Manual Packet 5.3 Fuel Valves 1.2 Your Responsibilities 5.4 Fuel Filters 1.3 Dealers Responsibilities Fuel Filter Reference 1.4 Sources of Information 5.5 LPG 1.5 Equipment Manufacturer Manuals Troubleshooting 5.11...
  • Page 8 Hunter 31 • Operator's Manual 10. Sanitary Systems 10.1 13.5 Emergency Operations 13.6 10.1 Drains and Discharges 10.2 10.2 Pumps 10.3 14. Maintenance 14.1 10.3 Other Waste Related 10.4 14.1 Maintenance Materials 14.2 10.4 Head System 10.5 14.2 Exterior 14.2 10.5 Operations and Maintenance 10.5 14.3 Interior...

  • Page 9: Introduction

    Chapter 1 Chapter 1 Introduction Introduction V1.061909 • P/N 1031379...

  • Page 10: The Manual Packet

    Hunter 31 • Introduction Understand and follow the rules of the road; 1.1 The Manual Packet • Learn how to navigate a boat in all sea, and weather This operator’s manual, along with your owner's packet, conditions; has been compiled to help you to operate your boat with safety and pleasure.

  • Page 11: Dealers Responsibilities

    Hunter 31 • Introduction An orientation in the general operation and mechanical systems of your boat; Fig. 1.1 Design Categories An explanation of the Hunter CSI Program and Hot Alert Sea and wind conditions for which a boat is process for same. assessed by the International Standard to be suitable, provided the craft is correctly handled in the sense of good seamanship and operated...

  • Page 12: Equipment Manufacturer Manuals

    Hunter 31 • Introduction Hunter recommends that you purchase and read the info can be found in the Warranty section, chapter 3 of following: the Operator's Manual. Yachtsman Handbook 1.7 Hull Identification Number (HIN) by Tom Bottomly Motor Yacht and Sailing The "Hull Identification Number"...

  • Page 13: Service Parts And Repair

    Hunter 31 • Introduction standards in Europe which require the application of the CE (Common European) mark. This mark, much like the NMMA certification here in the U.S., gives you the boat owner specific information concerning your boat. 1.9 Service, Parts, and Repair for your Boat When your boat...
  • Page 14 Hunter 31 • Introduction Notes:...

  • Page 15: Forms

    Chapter 2 Chapter 2 Documents Documents Forms Forms V.061909 • P/N 1031379...
  • Page 16 Hunter 31 • Documents and Forms Your Hunter dealer completes the Pre-Delivery y You can get more copies of the report by calling the U.S. Inspection Report (Fig. 2.1) before you take delivery Coast Guard Boating Safety Hotline at 1-800-368-5674. of your boat.
  • Page 17 Hunter Marine. Owner’s need to familiarize themselves with individual equipment manuals on all such items, especially aftermarket purchases or optional equipment installed by your dealer or Hunter Marine. This should insure that you are following the manufacturer’s recommendations for proper maintenance and up-keep.

  • Page 18: Out Of Water Inspection

    Hunter 31 • Documents and Forms Preliminary care and maintenance checklist A qualified Technician should be used if you are not completely confident in your ability to make repairs or inspections. Out of Water Inspection Pre-launch inspection ____ Sacrifi cial zinc anodes installed ____ Propeller installed with keyway, nuts and cotter pin ____ Propeller shaft turns freely and without excess wobble ____ Struts and shaft log free of corrosion...

  • Page 19: Fuel System

    Hunter 31 • Documents and Forms Anchor System and Ground Tackle ____ Anchor windlass inspected per manufacturers recommendation ____ Anchor secured in bow roller assembly ____ Spare anchor onboard and accessible. ____ See Chapman’s Manual for recommendations on anchors, anchor lines and drogues ____ Anchor line pays out and retrieves into anchor locker without diffi...

  • Page 20: Fresh Water Systems

    Hunter 31 • Documents and Forms ____ Smoke detectors operational ____ CO detectors operational (one per cabin recommended) ____ Engine & generator room blower operational ____ Auto fi re suppression system operational (engine compartment) ____ Shore power cord and adapter plug operational. See manufacturer’s manual for complete details ____ 110 or 220 VAC outlets operational - Ground fault circuits functioning ____ 110 or 220 VAC inverter/battery charging systems functioning properly...

  • Page 21: In Water Inspection

    Hunter 31 • Documents and Forms ____ Rubrail sealed secured to hull ____ Sliding hatches drains free of debris ____ Companionway drop-ins fi t properly in companionway and stowage rack ____ Load bearing hardware securely fastened. This includes but is not limited to chainplates, winches and handrails ____ Traveler arch securely fastened.

  • Page 22: Pre-Departure Checklist

    Hunter 31 • Documents and Forms ____ Alternator DC output at rated rpm (per engine manual) ____ Correct Idle rpm (per engine manual) ____ Water discharged with exhaust ____ Hour meter operational ____ Fuel level indicators operational ____ Throttle cable tension set properly ____ Shifter operation correct ____ Neutral safety start switch operational ____ No inboard exhaust gas leaks...

  • Page 23: After Sailing Checklist

    Hunter 31 • Documents and Forms ____ Water ____ Sunscreen and sunglasses ____ Tools ____ Docking and anchoring gear ____ Check radio operation ____ Navigation charts and instruments ____ Float plan to a friend or Coast Guard ____ Fuel for Stove ____ Cooking and eating utensils ____ check battery water level ____ oil level, tight V-belts...

  • Page 24: Pre-Delivery Service Record

    Hunter 31 • Documents and Forms Pre-delivery Service Record Fig. 2.1 DEALER: _____________________________ ENGINE:_________________________________ MAKE:_______________________________ OWNER: ________________________________ PORT ENGINE NO: ____________________ STBD. ENGINE NO: _______________________ BOAT A A NAME:__________________________REGISTRY R R NO:_________________________ ___ OPERATION___________INITIALS________ OPERATION____________ INITIALS_________ BEFORE STARTING ENGINES BEFORE LAUNCHING 23.

  • Page 25: Float Plan

    Hunter 31 • Documents and Forms Float Plan Name of Operator____________________________________________________Age____________________ Address____________________________________________________________________________________ Phone______________________________________________________________________________________ Boat Make ________________________________ Model__________________________________ Length _______________________ Hull Color_________________Deck Color___________________________ Registration No._____________________________Home Port________________________________________ Radio frequencies____________________________________________________________________________ Equipment on Board, PFDs, Flares, Anchor ______________________________________________________ ___________________________________________________________________________________________ Fuel Capacity ______________________________ Water Capacity____________________________________ Distinguishing Features________________________________________________________________________ ____________________________________________________________________________________________ Departed from_______________________________________________________________________________...

  • Page 26: Maintenance Log

    Hunter 31 • Documents and Forms Maintenance Log Date Maintenance Performed Hourmeter 2.12...
  • Page 27 Hunter 31 • Documents and Forms Maintenance Log Date Maintenance Performed Hourmeter 2.13...
  • Page 28 Hunter 31 • Documents and Forms (Several copies may be required to complete each of the following categories) Chapman’s Piloting recommended operating techniques, maintenance inspections and safety points for my particular boat length and type of sailing 2.14...
  • Page 29 Hunter 31 • Documents and Forms Recommendations made by manufacturers of original equipment for proper main- tenance and up-keep 2.15...
  • Page 30 Hunter 31 • Documents and Forms Power Squadron recommendations for maintenance and safe boating 2.16...
  • Page 31 Hunter 31 • Documents and Forms Local sailing club or marina’s recommendations for maintenance and up-keep 2.17...
  • Page 32 Hunter 31 • Documents and Forms List of onboard safety equipment and location (A copy should be posted onboard at all times) 2.18...
  • Page 33 Hunter 31 • Documents and Forms Spare Parts List 2.19...
  • Page 34 Hunter 31 • Documents and Forms Dates of practice drills and onboard safety inspections 2.20...
  • Page 35 Hunter 31 • Documents and Forms My personal preferences for maintenance items & safety gear 2.21...
  • Page 36 Hunter 31 • Documents and Forms Notes: 2.22...

  • Page 37: Warranty

    Chapter 3 Chapter 3 Limited Limited Warranty Warranty DC 071609...
  • Page 38 Hunter • Limited Warranty This Page Intentionally Left Blank...
  • Page 39 HUNTER MARINE CORPORATION: LIMITED ONE-YEAR WARRANTY Hunter Marine warrants to the first-use purchaser and any subsequent owner during the limited warranty period that any part manufactured by Hunter will be free of defects caused by faulty work- manship or materials for a period of twelve (12) months from the date of delivery to the first-use pur- chaser under normal use and service.
  • Page 40 Hunter • Limited Warranty Hunter also warrants to the first-use purchaser and any subsequent owner during the warranty period that the boat will be free from gelcoat blistering on underwater surfaces of the hull, exclud- ing the keel and rudder, for a period of five (5) years from the date of delivery to the first-use purchaser under normal use and service.

  • Page 41: Restrictions To Warranties

    Hunter • Limited Warranty The following circumstances will void the bottom blister limited warranty: (1) If the gel-coat has been sanded, sandblasted, or subjected to abrasion or impact. (2) If the instructions provided in the Hunter Owner’s Manual are not followed according to Hunter’s required bottom preparation procedures.
  • Page 42 Hunter • Limited Warranty OWNER INFORMATION CARD HULL IDENTIFICATION NUMBER IS ON THE STARBOARD AFT SIDE OF THE HULL OR TRANSOM. THIS NUMBER MUST BE GIVEN IN ALL NECESSARY CORRESPONDENCE. HULL NO. DATE DELIVERED TO OWNER YACHT NAME OWNER NAME STREET ADDRESS CITY STATE/COUNTRY...

  • Page 43: Warranty Registration

    Hunter • Limited Warranty WARRANTY REGISTRATION These limited warranties shall not be effective unless the HUNTER Warranty Registration Form and Pre-Delivery Service Record, which are furnished with each new boat, are filled out com- pletely and re-turned to HUNTER within ten (10) days of delivery. Return of the Warranty Registration Form to HUNTER, signed by both Dealer and Owner, is crit- ical.

  • Page 44: Sample Form Letter

    Hunter • Limited Warranty SAMPLE FORM LETTER March 12, 1997 Mr. John Smith 1456 Joy Street Sarasota, FL 34266 Dear Mr. Smith, Thank you for providing written notice of transfer of ownership. We are pleased you have selected a Hunter sailboat and we will make every effort to assure Hunter ownership will be a satisfying experience for you.
  • Page 45 Hunter • Limited Warranty GRAPHIC EXPLANATION OF WARRANTY COVERAGE Internal fiberglass pan All fiberglass tabbing, overlays , and fiberglass grid adhesives, epoxy and secondary system are covered by bonding are covered only by the the five-year limited one-year limited warranty. They warranty.
  • Page 46 Hunter • Limited Warranty GRAPHIC EXPLANATION OF WARRANTY COVERAGE All wooden bulkheads, modular components, floors, floor sup- ports , paneling, trim, coring materials, faceplates, counter- tops are covered only by the one-year limited warranty. They are not covered by the five-year limited warranty.

  • Page 47: Boating Safety

    Chapter 4 Chapter 4 Boating Boating Safety Safety V.061909 • P/N 1031379...
  • Page 48 Hunter 31 • Boating Safety This Page Intentionally Left Blank...

  • Page 49: Safety

    Hunter 31 • Boating Safety As you read your owner’s manual, please note hazard 4.1 Safety warnings which alert you to safety and precautions and unsafe conditions or operating procedures. We have Boating safety and the safety of your passengers are included these warnings because we are concerned your responsibility.
  • Page 50 Hunter 31 • Boating Safety • Keep an eye on the weather. Be aware of possible are allowed time to make correction without prosecution. changing conditions by checking a local weather report Check with the appropriate state agency or the Coast before your departure.

  • Page 51: Carbon Monoxide Hazard

    Hunter 31 • Boating Safety • Anchor and line * to place themselves in a vertical or face-up position in • Boat hook the water. Type III PFD has the same minimum buoy- • Bucket & Sponge ancy as a Type II PFD. It has little or no turning ability. •...
  • Page 52 Hunter 31 • Boating Safety diffuses in the air much more rapidly than other gasses Dizziness that are detectable by the human senses. The weight of Vomiting CO is about the same as air so it does not rise or fall like Collapse other gasses but will distribute itself throughout the boat.
  • Page 53 Hunter 31 • Boating Safety • As always, you can contact the Red Cross to obtain before starting the engines or generator. information for training in CPR or emergency response care. Next, start each engine and generator one at a time. Follow the full run of the exhaust system, listening and 4.2.7 How to Minimize the Accumulation of Carbon looking for leaks.

  • Page 54: Know The Dangers

    Hunter 31 • Boating Safety Know the Dangers! Know the Dangers! Swimming near or under the back deck or swim platform. Carbon monoxide from exhaust pipes of inboard engines, outboard engines and generators build up inside and outside the boat in areas near exhaust vents.
  • Page 55 Hunter 31 • Boating Safety Figure 4.3. Blocked hull exhaust outlets near a pier, dock, seawall, bulkhead or any other structure can cause excessive accumulation of Carbon Monoxide gas with the cabin areas of your boat. Be cer- tain hull exhaust outlets are not blocked in any way. Figure 4.4.
  • Page 56 Hunter 31 • Boating Safety may be present in other areas. WARNI N G 4.2.10 Carbon Monoxide Review To reduce the risk of Carbon Monoxide poisoning, test the alarm’s operation after the boat has been in stor- Everyone is at risk for Carbon Monoxide poisoning! age, before each trip, and once a week during use.

  • Page 57: Other Dangers

    Hunter 31 • Boating Safety • For maximum protection, CO alarms should be follow ALL the instructions in this manual. Test your unit installed in all sleeping areas. every week. Alarms that do not work, do not alert you to the presence of Carbon Monoxide.
  • Page 58 Hunter 31 • Boating Safety If the bow of the other boat penetrated your boat’s hull, Avoid operation in such weather, especially if your boat is prepare to plug the fracture once the boats are sepa- not equipped with radar or other rate.

  • Page 59: Fire

    Hunter 31 • Boating Safety likely drown. In general, the colder the water, the shorter Have all persons on board put on their personal flotation the time for survival. PFDs will increase survival time devices (PFDs). because they provide insulation. If you can get at the fire, aim the fire extinguisher at the base of the flames and use a sweeping action to put out Water...
  • Page 60 Hunter 31 • Boating Safety pyrotechnic equipment includes an orange distress flag, Light Color Visible dye markers, and an electric distress light. Range Masthead No single signaling device is ideal under all conditions for Light all purposes. Consider carrying various types of equip- Starboard 112.5 ment.
  • Page 61 Hunter 31 • Boating Safety 4.5.4 Sound Signaling Device Your boat is provided with a horn which conforms with U.S. Coast Guard requirements for boats of this size. All class A boats are recommended to carry a hand, mouth, or whistle, as well as a power operated horn. The device should be used to promote safe passing, as well as a warning to other vessels in fog, or confined areas, or as a signal to operators of locks or drawbridges.
  • Page 62 Hunter 31 • Boating Safety DA NGER Lightning Storm Warning All whip antennas should be tied during the storm, unless they are part of the Lightning Protection System. Precautions during lightning storms: * Occupants should take shelter inside a closed area of the boat, i.e. below deck! * Occupants should not have any body parts in the water! * Avoid contact with components of the Lightning Protection System or any type of metal objects!

  • Page 63: Interior Arrangement

    Hunter 31 • Boating Safety Interior Arrangement Fwd Bunk Hanging Locker Settee Galley Sink Nav Center Refrigerator Shower Stove Toilet Microwave Sink Hanging Locker Steps Aft Bunk Engine Compartment 4.17...

  • Page 64: General Boat Arrangements

    Hunter 31 • Boating Safety General Boat Arrangements Mast Mainsail ForeStay Boom Cockpit Area Bow Rail Arch Helm Sternrail Pulpit Transom Hull Rudder Keel 4.18...
  • Page 65 Hunter 31 • Boating Safety H31 Dimensions, Capacities, Etc. 4.19...
  • Page 66 Hunter 31 • Boating Safety Notes: 4.20...
  • Page 68 Hunter 31 • Boating Safety This Page Intentionally Left Blank 4.22...

  • Page 69: Fuel System

    Chapter 5 Chapter 5 Fuel Fuel Systems Systems V.061909 • P/N 1031379...

  • Page 70: Fuel Safety Checklist

    Hunter 31 • Fuel Systems FUEL SAFETY CHECKLIST FOR BOARDING This fuel safety checklist is designed to be used as a quick reference to minimize the risks associated with fuel hazards. You should refer to this checklist every time you board your boat. Read your owners manual so that you have a full understanding of the fuel system on your boat.

  • Page 71: Fuels Tanks

    Hunter 31 • Fuel Systems Fuel Systems The fuel systems aboard your Hunter boat consists of the following components or sub-systems. • Fuel Tank • Fuel Fill • Fuel Vent • Fuel • Lines • Fuel Filters • LPG (Liquefied Petroleum Gas) System 5.1 Fuel Tanks Your boat is equipped with a fuel tank located in the transom.

  • Page 72: Fuel Supply Lines And Hoses

    Hunter 31 • Fuel Systems WA R N I N G 5.2 Fuel Supply Lines and Hoses Fuel leaking from any part of the fuel system can If any fuel fill or vent hose's are in need of replacement, lead to fire and explosion that can cause serious ensure that only USCG Type A1 or A2 are used.

  • Page 73: Fuel Filters

    Hunter 31 • Fuel Systems these fittings without properly bleeding the system of fuel could for the Racor Fuel Water separator (commonly referred result in emptying the fuel filters and causing a fuel spill. Only to as the fuel filter). This will break down the components a qualified technician should ever make repairs to your fuel of the filter and their uses within the filter.
  • Page 74 Hunter 31 • Fuel Systems • After fueling is complete, open all hatches, doors, WA R N I N G and compartments. • Visually check all fuel fittings, lines, and tanks for fuel Fuel leaking from any part of the fuel system can leakage.

  • Page 75: Fuel Filter Reference

    Hunter 31 • Fuel Systems A Quick Fuel Filter Reference Fig. 5.6...
  • Page 76 Hunter 31 • Fuel Systems Cold burns (frostbite) will result from skin/eye contact with liquid from the tanks. 5.5.4 Accidental Release Measures Liquid release or vapor pressure jets present a risk of As these substances have a very low flash point, any serious damage to the eyes.

  • Page 77: Lpg

    Hunter 31 • Fuel Systems When handling cylinders (above head height) protective with liquid occurs. headgear may be necessary. Fig. 5.8 Exposure Limits When changing tanks, wear suitable gloves and safety goggles or face shields. Long Term Exposure Short Term Exposure Limit (PPM) (8 hr Limit (PPM) (10 min TWA)
  • Page 78 If the manuals are not available in your owner’s packet, contact Hunter Marine, or your dealer. It is the ultimate in importance that you under- stand all you should about the equipment on your boat.

  • Page 79: Troubleshooting

    Hunter 31 • Fuel Systems Troubleshooting Problem Cause Solution Fuel overfl ows at the fi ll plate Fill or vent line blocked Check lines. Clear obstruction from (tank not full) line or straighten line if kinked. Water or moisture in fuel tank Cap on deck fuel fi...
  • Page 80 Hunter 31 • Fuel Systems Notes: 5.12...

  • Page 83: Underwater Gear

    Chapter 6 Chapter 6 Underwater Underwater Gear Gear V.061909 • P/N 1031379...
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  • Page 85: Mechanical Propulsion Components

    Hunter 31 • Underwater Gear at a higher than recommended RPM. Your engine Underwater Gear manual will specify the maximum recommended RPM. Your underwater Gear consists of the following: To maintain rated power, propellers should be free of nicks, excessive pitting and any distortions that alter them •...

  • Page 86: Steering Components

    Hunter 31 • Underwater Gear 6.1.4 Struts 6.2 Steering Components Each propeller shaft is supported by manganese bronze struts fastened to the bottom of the hull. The struts have DA NG ER replaceable bearings to minimize wear and to protect the shaft at the points where it passes through the strut Keep clear of moving steering parts at all times.

  • Page 87: Seawater Intake

    Hunter 31 • Underwater Gear 6.2.2 Rudders Care should be taken that these intakes and skin fittings are cleaned of barnacles and other growth as specified Your Hunter rudder is constructed with a foam filled in the maintenance section of this manual to maintain a composite blade by hand lay-up connected to an internal clear, open passageway.
  • Page 88 Hunter 31 • Underwater Gear anchor chain. Windlass Profile Illustration Insert the emergency handle into the clutch nut. • Turn handle clockwise to retrieve anchor. Emergency Handle To operate from the bow: • Switch the power on at the controls Clutch Nut •...

  • Page 89: Troubleshooting

    If the manuals are not available Fig. 6.9 in your owner’s packet, contact Hunter Marine, or your dealer. It is the ultimate in importance that you under- stand all you should about the equipment on your boat.
  • Page 90 Hunter 31 • Underwater Gear Thru Hulls Port and Starboard 1. ANCHORWELL DRAIN (2) 6. SUMP PUMP DISCHARGE 2. WATER TANK VENT 7. ENGINE EXHAUST 3. FUEL TANK VENT 8. LPG LOCKER DRAIN 4. BILGE PUMP DISCHARGE 9. WASTE EXTRACT 5.

  • Page 91: Troubleshooting

    Hunter 31 • Underwater Gear Troubleshooting Problem Possible Cause Resolution Excessive vibration Material obstructing propeller Remove material from propeller, shaft, or rudder by revering engines. If necessary, stop engines and cut or pull material away. Bent prop or shaft Replace propeller. If vibration con- tinues, see your dealer for service.
  • Page 92 Hunter 31 • Underwater Gear 6.10...
  • Page 94 Hunter 31 • Underwater Gear This Page Intentionally Left Blank 6.12...

  • Page 95: Dc Electric

    Chapter 7 Chapter 7 DC Electric DC Electric Systems Systems V.061909 • P/N 1031379...

  • Page 96: Dc Power Systems & Components

    Hunter 31 • DC Electric and the components that are powered by the DC electri- DC Electric Systems cal system and their operation. This section will provide you with the information necessary 7.2 Power Supply Equipment & to understand and operate your DC Electrical Systems. Components It is not the scope of this manual to educate you on repair, or extending the electrical system.
  • Page 97 Hunter 31 • DC Electric Each battery bank is wired to a battery selector switch on the battery. located under the chart table. A circuit breaker “DC Main” on the battery switch panel connects the batteries to the Note: Batteries should always be removed and installed by trained, qualified persons to avoid all damages.
  • Page 98 Hunter 31 • DC Electric 7.2.3 Battery Charging System All electrical systems aboard your boat are provided with over-current protection in the form of breakers or fuses. Refer to the DC Wiring Diagram drawing at the end of Examples of breakers are the system or component con- this section for the location of the battery charger.
  • Page 99 Hunter 31 • DC Electric The power switch turns the monitor on, then These lights should always be on when motoring. select the tank you want to monitor. The gauge will show the amount remaining in the tank(s). The “steaming” light is the forward facing light mounted at the top of mast.
  • Page 100 Hunter 31 • DC Electric 7.3.4.1 Basic Refrigerator Operation Main Distribution Panel 1. On standard battery charger model, turn on house DC DISTRIBUTION PANEL 12V DC DC AMPS 24V DC battery selector switch (under chart table). BATTERY TEST Battery Switch Panel PORT STBD 2.
  • Page 101 Hunter 31 • DC Electric illustration in the Boating Safety Section, or the Ventilation 4. Turn the macerator switch to the “on” position at the illustration in the same section. Nav Station. This is a momentary switch, you must hold the switch to operate.
  • Page 102 Hunter 31 • DC Electric Note: If windlass becomes inoperable electrically, a can also review the dangers of CO in the Boating Safety manual winch handle is supplied. Chapter of this manual. For more information about your windlass, refer to your Do not spray waxes or cleaning agents on the monitor.

  • Page 103: Troubleshooting

    Hunter 31 • DC Electric Troubleshooting Problem Cause Solution 12 volt equipment not working Battery selector switch turned off Check battery selector switches and ensure they are on Battery not charging with engine Check alternator, belt, etc. Change alternator, tighten belt running Battery not holding a charge Faulty Battery...
  • Page 104 Hunter 31 • DC Electric Notes: 7.10...

  • Page 109: Ac Electric

    Chapter 8 Chapter 8 AC Electric AC Electric Systems Systems V.061909 • P/N 1031379...

  • Page 110: Power Systems & Components

    Hunter 31 • AC Electric Systems AC Electric Systems DA NG ER Besides a 12 Volt DC negative ground system, your Never work on an energized circuit! Always treat Hunter boat has a 120V 60 HZ AC system. any circuit as if it were live! Always have trained, competent technicians to service your electrical It is not the intent of this manual to educate you on repair systems!
  • Page 111 Hunter 31 • AC Electric Systems the boat receptacle to prevent accidental unplugging. On the boat: D. Turn on shore inlet breakers. E. Turn ON AC Main breaker on AC panel. AC panel should now operable. Figure 8.3 Note: Approximately 15 second delay on optional inverter WA R N I N G models.
  • Page 112 Hunter 31 • AC Electric Systems DO NOT allow the dockside power cord to come in contact with the water. Never operate any power tool or other electrical equipment while you or the devices are in contact with the water, as this may cause electrocution resulting in shock or death.
  • Page 113 Hunter 31 • AC Electric Systems MDP. to be drained. 8.1.9 Inverter (Option) 8.1.10 Air Conditioner (Option) When in Invert Mode (Converts 12VDC to 120VAC) The Air Conditioning system is 120 volt (220 overseas) AC powered and powered from the AC Distribution 1.
  • Page 114 Hunter 31 • AC Electric Systems Important: Be sure to close air conditioner seacock when air conditioner is not in use. Refer to manual furnished with the air conditioning unit for more detailed information regarding its operation. The air conditioner is located under the settee. To gain access remove seat cushion and lift seat.

  • Page 115: Troubleshooting

    Hunter 31 • AC Electric Systems Troubleshooting Problem Possible Cause Solution No AC power Main breaker(s) aft cabin Turn breaker on or reset tripped or off Shore power cord not con- Check cord, plug in if necessary nected Loose or disconnected wire Tighten connections.
  • Page 116 Hunter 31 • AC Electric Systems Notes:...
  • Page 118 Hunter 31 • AC Electric Systems This Page Intentionally Left Blank 8.10...

  • Page 119: Water Systems

    Chapter 9 Chapter 9 Water Water Systems Systems V.061909 • P/N 1031379...

  • Page 120: Water Tanks

    Hunter 31 • Water Systems The fresh and raw water systems consist of the following CAUT I ON components: Always ensure that when filling the fresh water tanks • Dockside Water Supply that you are filling through the fresh water fill. Other •...

  • Page 121: Pumps

    Hunter 31 • Water Systems Refill with potable water and purge the plumbing of all diaphragm. sanitizing solution. Note: If the pumps run from time to time even though no water is being used, a leak in a water line is a likely cause. Check all 9.2 Pumps lines for leaks and repair immediately.
  • Page 122 Hunter 31 • Water Systems and strainers associated with the water systems. A/C cooling water arrangement. It is important to always ensure that the intake valve (see mechanical arrange- 9.3.1 Pick-ups ment in the Boating Safety Chapter, as well) is always open before using the A/C System.
  • Page 123 Hunter 31 • Water Systems the procedure for cleaning your strainers. 9.3.5 Water Heater The fresh water pump supplies water to the water heater from the water tank. A breaker on the AC side of the MDP, controls power to the heater. Follow these procedures when using the water heater: 1.

  • Page 124: Troubleshooting

    Hunter 31 • Water Systems Troubleshooting Problem Cause Solution Air in system Tank empty Fill all water tanks Fresh water pumps cycle on and off Tank empty Refill Blocked or pinched water lines Clear obstruction or straighten line Loose electrical connections Check connections.
  • Page 126 Hunter 31 • Water Systems This Page Intentionally Left Blank...
  • Page 127 Chapter 10 Chapter 10 Waste Waste Systems Systems V.061909 • P/N 1031379...

  • Page 128: Drains And Discharges

    Hunter 31 • Waste and Sanitation Systems This section outlines the use, care, and maintenance of However, waste is not limited to liquids, so, an example your boat’s sanitary systems, as well as, bilge pumps and might be the exhaust system on your engine or genera- waste systems.

  • Page 129: Pumps

    Hunter 31 • Waste and Sanitation Systems 10.1.2 Overboard Discharge Should the water level rise above the high water mark, Some discharges have valves associated with them. The and the emergency bilge pump comes online, you will Black water, or Raw sewage system from the head is one hear a high water alarm from the helm along with a solid such system.

  • Page 130: Other Waste Related

    Hunter 31 • Waste and Sanitation Systems shower drain. overboard in U.S. lakes, rivers, bays, and sounds and within 3 miles of shore in international waters is prohibited. Check with the Coast Guard regarding regulations in your area. A diaphragm type pump with strainer is used for the shower sump.

  • Page 131: Head System

    Hunter 31 • Waste and Sanitation Systems tions on pumping out black water waste! Electric Head System Switch Waste Tank Toilet 10.4 Head System Fresh Water Supply All vessels with fixed toilets that are operated on the waterways of the United States and some foreign coun- Macerator tries are required to be equipped with an operable Marine Sanitation Device (MSD).

  • Page 132: Sanitary Systems

    Hunter 31 • Waste and Sanitation Systems the float handle on the side of the float switch to simulate possibly remove any debris clogging the pump. the float switch being underwater. This will energize the 10.5.4 Shower Sump pump and the pump will operate. The shower sump is controlled by a rocker switch on the 10.5.1.2 Maintenance on Bilge Pumps vanity face.

  • Page 133: Toilets

    Hunter 31 • Waste and Sanitation Systems 10.5.5.3 Maintenance Maintenance on the holding tanks is best described as ensuring no methane gas is leaked and to keep odors down to a minimum. Any deodorizer may be used as long as it contains no alcohols or strong chemicals. Steer clear of drain opening type chemicals or strong bleaching type agents.

  • Page 134: Troubleshooting

    Hunter 31 • Waste and Sanitation Systems Troubleshooting Problem Cause Solution Head Not Flushing Head breaker Off Switch Breaker to on. If Breaker is tripped determine cause and correct. Battery Charge Low Charge Batteries Head Not Emptying Blocked line to tank Remove material from line Shower Sump Overflowing Sump Pump Breaker OFF...
  • Page 138 Hunter 31 • Waste and Sanitation Systems This Page Intentionally Left Blank 10.12...

  • Page 139: Engines

    Chapter 11 Chapter 11 Engines Engines Transmissions Transmissions V.061909 • P/N 1031379...
  • Page 140 Hunter 31 • Engines and Transmissions The following is a list of components associated with CAUT I ON your engines and transmissions. Take proper care when washing down, or clean- • Engine ing your engines, that water does not enter the air •...
  • Page 141 Hunter 31 • Engines and Transmissions the engine speed. Important: Engines are not warranted by Hunter Corporation, these warranties are written by the engine manufacturers. Press and hold the center button on the shift lever, and move the lever forward to increase the engine RPM DA NGER without shifting into gear.

  • Page 142: Transmissions

    Hunter 31 • Engines and Transmissions The raw water cooling system is described in detail in your “Water Systems” (section 9) of this manual. The Consult your OEM manual for complete transmission internal engine cooling system is supplied by the engine information.
  • Page 143 Hunter 31 • Engines and Transmissions what to look for and what to do in case of neces- sary action. Inspect your boat’s exhaust system fre- quently, or have a qualified service technician ser- vice the system to ensure that there are no leaks. Always ensure the exhaust clamps are tightened,, throughout the system.

  • Page 144: Troubleshooting

    Hunter 31 • Engines and Transmissions Troubleshooting Problem Possible Cause Solution Engine not starting No fuel reaching engine Fuel tank vent blocked. Clean hose and fitting to remove material. Make sure hose is not pinched Improper starting procedures Fuel line obstructed. Check fuel lines.
  • Page 145 Hunter 31 • Engines and Transmissions Drop in oil pressure Lubrication system leaking Repair if possible. See your dealer (engine running at constant speed) for service Defective oil pump See your dealer for service Pinched oil lines to remote filters Reroute if possible.
  • Page 146 Hunter 31 • Engines and Transmissions High oil pressure Too heavy grade of oil Drain oil and replace. See engine manual for proper grade Dirt or obstruction in oil line Drain and clear oil system. Check for bent or flattened oil lines and replace as necessary Sludge in oil Infrequent oil changes...
  • Page 148 Hunter 31 • Engines and Transmissions Systems This Page Intentionally Left Blank 11.10...

  • Page 149: Sails And Rigging

    Chapter 12 Chapter 12 Sails Sails Rigging V.061909 • P/N 1031379...

  • Page 150: Main Rig Components

    12.1 Main Rig Components Most sailors believe that sailing is hard work: all those lines • Anodized B&R Rig Mast to tend, halyards to yank and sails to lug. Hunter Marine • Boom has dispelled that myth once and for all! Innovations by •...

  • Page 151: The Sails

    Hunter 31 • Sails and Rigging 12.4 The Sails 8. Mark the halyard at the stopper with 1” (25mm) single band of indelible marker ink. By dropping the halyard to As standard your Hunter is equipped with a furling jib this mark every time, positioning is made easier.

  • Page 152: The Arch

    Hunter 31 • Sails and Rigging total slack in the sheet. The sheet that is not being used • 9/16” deep and regular socket. — the lazy sheet — should also be attached to the clew • 9/16” wrench of the spinnaker , led forward in front of the headstay, •...
  • Page 153 Hunter 31 • Sails and Rigging cord. 12.10.2 General Hardware Maintenance Check all fittings regularly to be sure screws are tight. Occasionally lubricate (use silicone lubricants) all mov- ing parts on such fittings as blocks, turnbuckles and cam cleats, as well as the locking pins of snatch blocks, track slides, spinnaker poles, etc.
  • Page 154 Hunter 31 • Sails and Rigging Notes: 12.6...
  • Page 163 Chapter 13 Chapter 13 Getting Getting Underway Underway V.061909 • P/N 1031379...

  • Page 164: Getting Underway

    Hunter 31 • Getting Underway Before you go on the first cruise, you should be able to CAUT I ON answer “yes” to the following questions: This alarm will only indicate the presence of Carbon • Has your dealer completed the pre-delivery service Monoxide at the sensor.

  • Page 165: Starting The Engine

    Hunter 31 • Getting Underway WA R N I N G WARNI N G Leaking fuel is a fire and explosion hazard. Personal Using a damaged or improper cord for shore power injury or death could occur. can cause electrical shock and serious injury. Use a cord specifically designed for shore power connec- tion.

  • Page 166: Getting Underway

    Hunter 31 • Getting Underway WA R N I N G 13.3 Getting Underway In order to prevent premature starter failure, do not continuously crank engine starters for more than 10 WARN I NG seconds. Before ever pulling away from the dock, make sure 5.
  • Page 167 Hunter 31 • Getting Underway fully adjusting some tension on the sheet to keep the sail bend by tightening the reverse diagonals (diamonds). taught. Measure the band by tensioning a line or the main hal- yard between the masthead and the gooseneck. The 2.

  • Page 168: Returning To Port

    Hunter 31 • Getting Underway harness or Bosun’s Chair intended for this use. Always not true, then revisit the appropriate step above to correct tie into the harness with the halyard using a bowline and it. If the sag in the headstay is too much then adding ten- then secure the shackle as a back up as the knot is more sion to the verticals will fix it.
  • Page 169 Hunter 31 • Getting Underway emergency procedures aboard your boat. Always insure that you, and all aboard know the outlines for emergency operations. Here we will provide you with some of the basics for some of the situations you may encounter. You may also review the Boating Safety chapter, of this manual.
  • Page 170 Hunter 31 • Getting Underway Notes: 13.8...

  • Page 171: Maintenance

    Chapter 14 Chapter 14 Maintenance V.061909 • P/N 1031379...

  • Page 172: Maintenance Materials

    Hunter 31 • Maintenance Spray lubricant Maintenance 14.1.3 Recommended Spare Parts (The information below is Hunter Marine’s opinion and should not be considered complete or exact list of recom- We recommend that you carry the following spare parts mendations.) on board your yacht: You have made the investment to purchase your boat.
  • Page 173 Hunter 31 • Maintenance are removed. Waxing helps protect your boat from everyday elements. Use a wax recommended for fiberglass (gelcoat) finishes. * Apply a good coat of wax. Many automatic, over-the-counter waxes can be used. Check the product label for recommended surfaces and 14.2.4 Stains applications.
  • Page 174 Hunter 31 • Maintenance ish out the stainless finish for a mirror shine. parts: • Do...Rinse thoroughly with fresh water after each cruise. Thorough rinsing can prevent a lot of the surface staining * Wash acrylic hatches, windows, and any other acrylic that stainless steel produces when left in contact with salt compounds with mild soap and plenty of lukewarm water residue.

  • Page 175: Interior

    Black Hunter Marine. You will find that as with most items, sole shoes permitted on deck may scuff any deck surface.

  • Page 176: Mechanical Systems

    Hunter 31 • Maintenance dissolve dirt and grime, but will not harm the environment for damage. Replace any damaged exhaust system when pumped overboard. If you keep the bilge clean, it component. is much easier to identify leaks or other problems if they should develop.

  • Page 177: Periodic Maintenance

    Hunter 31 • Maintenance * Keep the batteries fully charged. Batteries kept fully Clean the cable with a grease cutting household deter- charged last longer than batteries kept at a partial gent. Apply a vinyl protector periodically. charge. The metallic parts of the cable are corrosion resistant. * Check the level of the electrolyte regularly.

  • Page 178: Storage And Lifting

    Hunter 31 • Maintenance tings. aft of the station indicated may damage the propeller shaft. Lifting forward of the station indicated, with the * Check and service batteries, tighten battery connec- sling under the exhaust outlets, may cause cracking tions, and lubricate as needed. which is not covered by the warranty.
  • Page 179 Hunter 31 • Maintenance * Clean the inside of all hull openings, through hull fit- ** Prepare the Fresh Water System: tings, and screens. Inspect the hull and underwater gear * Remove the fresh water supply by opening the hot and for signs of wear, deterioration, or damage.

  • Page 180: Fitting Out After Storage

    Hunter 31 • Maintenance form the following: * Apply a coat of wax to the entire boat. Put rust inhibitor on all metal parts. * Check all anchor lines and gear and replace, if neces- sary. * Cover the boat with a tarpaulin or mooring cover. If the boat is stored outside, you may need to place supports * Check all through hull fittings to make sure they are under the cover to shore up pockets where rain or snow...

  • Page 181: Routine Maintenance

    Hunter 31 • Maintenance Routine Maintenance Item Daily 75hr 250hr Yearly Diesel Engines Check Exhaust system for leaks Check for loose or dam- aged parts Check fuel system line for leaks Drain water and sedi- ment from primary fuel filter Drain water from fuel separator Clean or replace air...
  • Page 182 Hunter 31 • Maintenance Tighten all pressurized water system fittings Item Daily 25hr 75hr 250hr Yearly Miscellaneous Halon Fire Extinguishers Check battery electro- lyte level Check raw water strain- ers (generator, AC unit) 14.12...
  • Page 184 Hunter 31 • Maintenance This Page Intentionally Left Blank 14.14...

  • Page 185: Glossary

    Chapter 15 Chapter 15 Glossary Glossary V.061909 • P/N 1031379...
  • Page 186 Hunter 31 • Glossary Broach: when a boat running downwind slews broad- side to the wind and heels dangerously. It is caused by Aback: describes a sail when the wind strikes it on the heavy following seas or helmsman’s error. lee side.
  • Page 187 Hunter 31 • Glossary Dead run: running with the wind blowing exactly aft, in Go about: to turn the boat through the eye of the wind line with the center-line. to change tack. Deviation: the difference between the direction indicat- Gooseneck: the fitting attaching the boom to the mast, ed by the compass needle and the magnetic meridian;...
  • Page 188 Hunter 31 • Glossary Leech: 1, the after edge of a triangle sail; 2, both side On the wind: close-hauled. edges of a square sail. Out haul: a rope used to pull out the foot of a sail. Leehelm: the tendency of a boat to bear away from the Overall length (OAL): the boat’s extreme length, mea- wind.
  • Page 189 Hunter 31 • Glossary under 50 ft. (15m.)is at anchor. It must be visible for 2 a knot; the part of a rope that is made fast, or around mls. (3 km.). which the knot is tied. Rigging screw: a deck fitting with which the tensions of Standing rigging: the shrouds and stays that are per- standing rigging, e.g.
  • Page 190 Hunter 31 • Glossary line; two transit give position fix. Traveller: 1, a ring or hoop that can be hauled along a spar; 2, a fitting that slides in a track and is used to alter the angle of the sheets. Trim: 1, to adjust the angle of the sails, by means of sheets, so that they work most efficiently;...

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