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Re: no 12v output from aux terminals on a vfx 3648
Pretty sure it won't provide current to start anything. Just provides 12vdc at a low current to pull a relay in. Manual say it is auto reset on the aux terminals for the generator start relay. 0.7 amps max.
If you still don't have the voltage there at the correct time (when called for), you unit is bad or has a fuse they don't mention in the manual. Remember!! This is a called for function so the voltage will not be there all the time, just when required as per the programming.
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Ez test to determine if stator wiring is ok. This test works on generators that have two sets of 115v plugs and 220v plug. Use a 12v, 1amp ac power supply ( smaller ac power supply should work ok ). With generator not running, apply 12v to one of the 115v outlet plugs. Now verify 12v output voltage with meter at another 115v outlet on generator. Also verify that there is about twice the voltage at the 220 v outlet plug (should be about 20v - 24v) . If the adjoining 115 v outlet plug has no output or very little voltage or if the 220 volt plug has no output, most likely stator is damaged or breaker is off. If the stator is shorted voltage reading will be very low and power supply will heat up. If stator is open, there will be no voltage at second 115v plug or 220 v plug. If voltage is ok at the other outlet plugs as per test above then most likely problem is with voltage regulator, or brushes not making contact or armature winding open or just needs to be energized. Unplug the 12v power supply after test to prevent it from overheating. Most generators have two 115v windings that together power the 220v plug. When you energize one of the windings with the 12v power supply, the second 115v winding will be energized also and give you a voltage reading about equal to 12v. You will not damage the generator with this small voltage being input thru the plug. Good luck
I am assuming the generator is not being maintained by grid power when in standby.
I would suggest breaking the live feed from the battery + terminal through a cheap (or expensive) ameter, accuracy is not important.
Try disconnecting any wires feeding the various parts of the electric system to identify where the leakage is.
If there is no Identifiable leak being indicated by the ammeter then there may be an issue with the battery.
If you are not able to identify what the issue is you could fit a very small float charger connected from the mains to maintain the battery, you would need to connect it's 12v output through a normally closed pole of a relay which is energised by the generator therfore disconecting it when the generator runs.
We have done this in the past on old / exposed units to keep them in a full state.
There should be a small white ceramic block on the firewall - this component cuts the battery voltage from 12 to 9 volts for the coil and ignition system. It has 4 wires and is called a ballast resistor. You may need a book with the wiring diagram to be able to test it. You should have battery voltage going in and something like 9 volts coming out. You can also run a wire with a fuse from the battery to the positive side of the coil to check the system. Disconnect the factory wire from the coil first.
The terminals you listed are correct.
T4 -T7 mated
T5 -T8 mated
T6 -T9 mated
10, 11, 12 combined connection
L1, L2, & L3 = output / line leads
However you should have 277 VAC line to ground and 480 VAC Line to line (Across any 2 phases)
So terminals 1, 2 or 3 to ground should be 277 VAC (L1 L2 or L3)
1-2 or 1-3 = 480 VAC
any combination of
1 , 2, or 3 to each other = 480 VAC
As a "generator man" with 19 solutions one being "You might have to sting it" you should know this and be able to use the diagram on the power head to get your desired voltages unless the wiring data plate is missing. I have had to dial in voltage regulators when switching between 240 and 480 to prevent automatic shut downs from over / under voltage.
CHARGING SYSTEM The charging system is an integral part of the battery and starter systems. Since all of these systems work together, any diagnosis and testing should be done in conjunction.
The charging system is protected by a 12 gauge fusible link located in the A11 circuit. This fusible link is between the generator and the starter.
The generator ground is provided through a case ground in the generator to its attaching bracket. This generator uses a voltage regulator internal to the Powertrain Control Module (PCM)
When the vehicle is running, battery voltage is applied to the generator field terminal through the A142 circuit. This circuit is the output from the contact side of the Automatic Shut Down (ASD) relay. The ground, or voltage regulated side, of the generator field is controlled by the K20 circuit which connects to cavity 4 of the PCM connector.
When there is current present in the field, and the rotor is turning, the stator in the generator produces a B+ voltage that is supplied to the battery through the A11 and A0 circuits. The A11 circuit is connected to the output terminal of the generator and connects to the engine starter motor battery feed terminal. The A0 circuit is a direct feed line from the battery and connects to the engine starter motor.
Grounding for the system is accomplished at the battery negative terminal. These grounds connect to the engine and body.
HELPFUL INFORMATION Inspect for a blown fusible link in the A11 circuit between the generator and the starter motor. other Fusible link goes from the starter to the alternator.Thanks. Keep updated for
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I presume the two leads you mention are:-
a) very heavy main +12V power lead from the battery terminal with approx 3/8" eyelug terminal,
b) less heavy wire that connects battery power to main vehicle fusebox for power distrubution- this cable may incorporate a fusible link.
The two leads (as above) connect onto the same heavy duty 3/8" terminal on the starter motor.
The lower 3/8" power post (closest to the motor housing) connects only to the starter motor and should not normally be tampered with.
There should be one more light duty wire that operates the starter motor engage solenoid .- This is connected back to the ignition switch 'Start' +12V control output.
WARNING: DISCONNECT NEGATIVE CABLE FROM BATTERY BEFORE REMOVING BATTERY OUTPUT WIRE (B+ WIRE) FROM GENERATOR. FAILURE TO DO SO CAN RESULT IN INJURY OR DAMAGE TO
(1) Disconnect negative battery cable at battery.
(2) Remove generator drive belt. Refer to 7, Cooling System for procedure.
(3) Remove generator pivot and mounting bolts/nut (Fig. 2) , or (Fig. 3). Position generator for access to wire connectors.
(4) If equipped, unsnap plastic cover from B+ terminal.
(5) Remove B+ cable output terminal mounting
nut at rear of generator (Fig. 4), (Fig. 5), or (Fig. 6). Disconnect terminal from generator.
(6) Disconnect field wire connector at rear of generator by pushing on connector tab.
(7) Remove generator from vehicle.
(1) Position generator to engine and snap field
wire connector into rear of generator.
(2) Install B+ terminal to generator mounting
stud. Tighten mounting nut. Refer to Torque Specifications.
(3) If equipped, snap plastic cover to B+ terminal.
(4) Install generator mounting fasteners and
tighten. Refer to Torque Specifications.
CAUTION: Never force a belt over a pulley rim using a screwdriver. The synthetic fiber of the belt can be damaged.
Try to check your charger and battery 'coz it might be a problem... use a voltage tester... or try to "shock" your battery using a voltage regulator with 12V output voltage... red wire on he positive battery terminal and black wire at the negative... have contact at least 5 sec then try to charge....
apologies mate but what you hear at maximum volume (set volume to 99) is what the system can generate... The Lifestyle system are designed as stand-alone out-of-the box system and like other systems will only perform to their defined level. The only way is by using the AUX out (located behind the DVD/media center and connect either a pwoered loudspeaker or another amplifier (note that the output is fixed line so choose an amplifier with volume setting knob). with multiple loudspeaker of your choice. You may also go and buy expansions speakers from Bose itself