J105 Owner Manual 2012.pdf - J/Owners
J105 Owner Manual 2012.pdf - J/Owners
J105 Owner Manual 2012.pdf - J/Owners
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J/105 <strong>Owner</strong> Guide ...................................................................................................................................................................................................................................................... 36 <br />
Electrical System <br />
The following section describes the electrical system aboard the boat, how it operates, where it <br />
leads, and how to avoid trouble. Please read this section more than once and refer to the <br />
electrical diagrams included in this manual. For wiring code information please refer to the <br />
color code diagram. <br />
Never: <br />
• Work on the electrical installation while the system is energized; <br />
• Modify the craft’s electrical system or relevant drawings: installation, alterations and <br />
maintenance should be performed by a competent marine electrical technician; <br />
• Alter or modify the rated current amperage of overcurrent protective devices; <br />
• Install or replace electrical appliances or devices with components exceeding the rated <br />
current amperage of the circuit; <br />
• Leave the craft unattended with the electrical system energized, except automatic bilge-pump,<br />
fire protection and alarm circuits. <br />
DC Electrical System <br />
A 12 Volt DC electrical system is used throughout the J/105 for lighting and operation of pumps <br />
and various accessories. The J/105 is standard with one 12 volt 90 amp battery located under <br />
the cockpit aft of the engine. Optional battery capacity may be added within this locker. <br />
• Electrical Panel -‐ controls electric distribution with circuit breakers and switches. The <br />
main wiring harness runs from the back of this panel. <br />
• Mast Wiring Terminal Box -‐ is located on the upper portion of the bulkhead just inside the <br />
head to port. The mast wiring harness exits the mast just beneath the deck, and is wired <br />
directly into the D.C. system. The junction box is wired directly into the DC system <br />
through a terminal strip. Once the mast wiring is installed and mated at the junction box, <br />
be sure to test each function to insure proper operation. <br />
• Battery Switch -‐ The battery switch is located aft on the starboard settee berth face. It <br />
turns access to the battery ON or OFF to the main panel and the engine. The standard <br />
J/105 comes configured with one battery, so select BOTH on the switch. The optional <br />
second battery enables full use of the switch and allows one battery to be reserved <br />
exclusively for the engine and the ability to double up the cranking amps for cold starting <br />
in the BOTH position. The engine alternator will only charge the battery selected by the <br />
switch, so it is wise to have the switch set to BOTH should you have the additional <br />
battery. <br />
• Alternator -‐ The 60 amp alternator is attached to the engine and creates a charging <br />
current for the battery system when the engine is running. <br />
• Accessories -‐ such as navigation instruments can be added to the electrical panel and the <br />
12V DC system. We recommend that owners hire a qualified marine electrician to install <br />
electrical components. Be sure all sensitive accessories are not only grounded properly <br />
but that proper fuses are run off the panel.
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