What are the termials w and spade connector used for? where do the 3 connecters connect to when converting from dc generator to alternator

has the tractor got a generator, if so is it a lucas, if so has it 4 big spade connectors, I did an old for mk11 cortina to alternator, the big spaded need conncting, 2 plus 2 but I cannot remember who to do it. I was a young man, lol now almost 60

CAUTION: NEVER DISCONNECT THE BATTERY TERMINALS WITH THE ENGINE RUNNING. This will instantly destroy the 6-way rectifier/voltage regulator.

Check that the Generator Failure light comes on and stays on with key on and engine off. N.G., verify your connections on the back of the generator. This circuit must function or the generator will never charge the battery. If this indicator circuit is miswired (the small spade connector is disconnected, plugged into the wrong connection or otherwise nerfed) the voltage regulator open-circuits the field (rotor) windings and in turn, the generator will never charge and freewheel. Check the circuit from the connector on the back of the generator all the way to the dash, verifying the light bulb in the dash is good. My trick is to wire in a small 3 watt bulb (or a continuity light) in series with the circuit under the hood. Turn the key on to KP II and verify it lights up.

Others: Check ground from generator to engine. This is usually a large blue cable that ties off onto a bracket near the air valve. Check ground from engine to body. Check ground from battery to body to engine. Must read less than 1 ohm on your megger.

Removal & Installation


NOTE There is a trend among manufacturers today to refer to the source of belt-driven electrical power as a -generator-; however, by virtue of the method in which the -generator- produces electrical current the device is actually an -alternator-. The two terms may be used interchangeably.

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Remove or disconnect the following:
   
   Negative battery cable Accessory drive belt Alternator upper mounting bolt Engine splash shield Radiator support access panel Rear alternator bracket from the engine Alternator mounting bolts Duct on the back of the alternator Electrical connectors Front alternator-to-A/C bracket Alternator
   

To install:

1. Install or connect the following:
   
   Alternator Front alternator-to-A/C bracket. Torque the bolt to 37 ft. lbs. (50 Nm). Electrical connectors. Torque the battery connection nut to 115 inch lbs. (13 Nm). Duct on the back of the alternator Alternator mounting bolts. Torque the bolts to 37 ft. lbs. (50 Nm). Upper front bolt. Torque the bolt to 35 ft. lbs. (47 Nm). Rear bracket to the engine. Torque the bolt to 37 ft. lbs. (50 Nm). Radiator support access panel Engine splash shield Accessory drive belt Negative battery cable
   
2. Refill the cooling system. 4 DeVille
   NOTE There is a trend among manufacturers today to refer to the source of belt-driven electrical power as a -generator-; however, by virtue of the method in which the -generator- produces electrical current the device is actually an -alternator-. The two terms may be used interchangeably.
   
3. Before servicing the vehicle, refer to the Precautions Section.
4. Drain the cooling system.
5. Remove or disconnect the following:
   
   Negative battery cable Accessory drive belt Radiator Electrical connectors Alternator mounting bolts Alternator
   

To install:

1. Install or connect the following:
   
   Alternator Alternator mounting bolts. Torque the bolts to 37 ft. lbs. (50 Nm). Electrical connectors. Torque the battery connection nut to 111 inch lbs. (12 Nm). Radiator Accessory drive belt Negative battery cable
   
2. Refill the cooling system.

Remove the accessory drive belt. Disconnect the negative battery cable. Disconnect the generator electrical connector. Remove the engine harness terminal from the generator: - Slide the boot back along the cable. - Remove the engine harness cable nut (3). - Remove the engine harness terminal from the stud. Remove the generator bolts and generator. Install the generator. Install the generator bolts. Tighten the generator bolts to 50 N?m (37 lb ft). Install the engine harness terminal to the generator: - Install the engine harness terminal to the stud. - Install the engine harness cable nut (3). Tighten Tighten the engine harness cable nut to 13 N?m (10 lb ft). - Slide the boot over the generator stud. Connect the generator electrical connector (1). Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure . Install the accessory drive belt

The Black wire will connect to body ground, and it should be a good solid ground and if this wire is not grounded well then you might receive a primary voltage shock if you touch anything that is metal or grounded inside of the vehicle when the engine is running.

The Red wire should be connected to power when the key is in the "Run" position only, and a good place to find that source is one of the "IGN" connections at the fuse panel using a covered female spade connector. Use a test light and be certain that the connection only has power when the key is in the "Run" position, and has no power when the key is in the "Off" or "Accessory" position.

The White or Yellow wire should connect to the "LPS" connection at the fuse panel next to the LPS fuse using a covered female spade connector.

The Green wire will connect to the "-" negative side of the ignition coil or to the "Tach" or "Test" lead that runs from the negative side of the ignition coil. To locate the lead run down the wire from the negative side of the ignition coil and the lead should break off from that wire and it should have a tag on the wire that will say either "Tach" or "Test" (sometimes it is just an empty black wire connector) and that is if the lead does not come straight off from the wire connector at the ignition coil. If there is no lead you can get a wire tap connector to tap into the wire from the negative side of the ignition coil and then use a covered male spade connector to connect the Green wire from the tachometer to the wire tap connector.

Here is a diagram to help assist you and if you can not download the image right click on the image and then select "save picture as..." or "save image as..." and from your image viewer you should be able to read this diagram or print it out, and let me know if you require any further assistance.

Please re-post your question as it sounds like you are talking about the later vanagon and not the bay-window type 2 since the bay-window units did not have fancy idle control and stabilizer units.

The steps to replace an alternator are:

1. Do the following through the passenger side of the engine bay of course with the hood up.
2. First and most important is to disconnect the negative connection to the battery (driver side).
3. Using a 12mm socket loosen the tension adjusting screw and bracket screw. Using a 10mm socket or open end remove wirings. Pinched other connector to remove.
4. Using 14mm socket with 3/8 drive ratchet remove the big bolt on the lower side of the alternator.
5. You might need some help from a pipe for extra leverage.
6. Remove all parts that will hinder the removal of the alternator.For example the charcoal cannister on the firewall just slide up.
7. Ease the alternator through the opening by turning the alternator untile it can pass through the opening.

2005 Pontiac Vibe FWD L4-1.8L VIN 8

Alternator: Service and Repair
Generator Replacement
GENERATOR REPLACEMENT
REMOVAL PROCEDURE
CAUTION:
- Refer to Battery Disconnect Caution in Service Precautions.
- Failure to observe step 1 may result in a serious personal injury. If a tool is shorted at the generator lead, the tool will become hot
enough to cause a serious burn.
1. Disconnect the negative (-) battery cable.
2. Loosen the belt tension by turning the drive belt tensioner clockwise.
3. Remove the drive belt.
4. Disconnect the wire clamp (3) from the wire clip.
5. Remove the terminal cap and nut (1).
6. Disconnect the engine wire.
7. Disconnect the generator connector (2).
8. Remove the two mounting bolts.
9. Remove the generator (4).
INSTALLATION PROCEDURE
1. Install the generator (4) to the vehicle.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Secure the generator with the two generator mounting bolts.
Tighten
- Tighten the upper bolt to 25 N.m (18 lb ft).
- Tighten the lower bolt to 54 N.m (40 lb ft).
3. Connect the generator connector (2).
4. Connect engine wire to the generator.
5. Secure the engine wire with the nut.
Tighten
Tighten the nut to 9.8 N.m (86 lb in).
6. Install the terminal cap (1) to the nut.
7. Install the wire clamp (3) to the wire clip.
8. Install the drive belt.
- Visually inspect the drive belt for wear and damage.
- Minor cracks on the ribbed side of the belt are considered acceptable. Replace the belt if pieces are missing from the ribs.
- Ensure that the belt tensioner moves downward when the belt is pressed down in the center with a force of approximately 98 N (22 lb).
9. Connect the negative (-) battery cable.
Tighten
Tighten the bolt to 15 N.m (11 lb ft).

Ok I'm going to try this from memory...last time used it was a few years back when wiring up a big boat. Large (B+) wire goes from battery to large terminal on alternator back. Facing the rear of the alternator, top spade connector on alt goes to a switch (there was supposed to be a resistor in that wire, but I never used one) switch connects to (+) on battery. Terminal on right goes to the (B+) terminal on alternator. Alt case is ground.
I can't find my old chiltons electrical book but that is how I remember it.

a good friend of mine who knows aboat saabs told me to check the connection at the blower motor underneath the windshield wipers and sure enough the connections were all corroded.I cut the wires from the spade connectors and the plug and spliced in longer wire and put on new crimp connectors problem solved