Honda CSC29 Voltage Regulator Replacement

はじめに

The voltage regulator's purpose is to monitor the battery voltage, in which it will maintain a predetermined charging system voltage level. The regulator also controls the current flow to the rotor assembly.

The regulator will increase the field current, (there by strengthening the magnetic field) when the charging system voltage falls below this point, which increases the alternator's output. However, when the charging system voltage rises above this point, the regulator will decrease field current , which weakens the magnetic field, and decreases the alternator's output.

必要な工具と部品

手順1 Alternator Front Cover

Honda CSC29 Voltage Regulator Replacement, Alternator Front Cover: 手順 1、 3の画像 1

Honda CSC29 Voltage Regulator Replacement, Alternator Front Cover: 手順 1、 3の画像 2

Honda CSC29 Voltage Regulator Replacement, Alternator Front Cover: 手順 1、 3の画像 3

Remove 4, 7.9mm nuts using a 7.9mm socket driver head
One of the nuts is placed underneath the L-Bracket. Remove the L-Bracket and the 3 circled nuts before attempting to remove the remaining nut
There are two covers that need to be removed from the alternator. This step describes how to remove the back cover.

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手順2

Honda CSC29 Voltage Regulator Replacement: 手順 2、 3の画像 3

Pull cover off the body of the alternator
Once you have done this, you should be able to see the internal components of the alternator, particularly the bridge assembly that houses the rectifier, voltage regulator and brushes.

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手順3 Removing the brush assembly.

Honda CSC29 Voltage Regulator Replacement, Removing the brush assembly.: 手順 3、 3の画像 1

Honda CSC29 Voltage Regulator Replacement, Removing the brush assembly.: 手順 3、 3の画像 2

Honda CSC29 Voltage Regulator Replacement, Removing the brush assembly.: 手順 3、 3の画像 3

With the alternator cover removed, use a #2 Phillips screwdriver to remove the two, 6 mm screws that hold the brush cover in place.
Remove the brush cover assembly from the alternator. You might need to insert a needle in the small hole to separate the brushes from the rotor. Pull it out without using much force to avoid damage.
Avoid disconnecting wires unless otherwise specified!

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手順4

Honda CSC29 Voltage Regulator Replacement: 手順 4、 3の画像 3

Use a #2 Phillips screwdriver to remove the two 6mm screws holding down the voltage regulator
There are three screws that attach the voltage regulator to the bridge assembly. One of these screws was removed in the previous step.

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手順5

Locate and unscrew the 3, 6mm screws holding the bridge assembly in place
There are 4 screws attaching the bridge assembly to the alternator. One of these screws were removed in the previous step.

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手順6

Locate the copper leads connecting the stator to the bridge assembly. There are 3 sets of 2 leads on the perimeter of the bridge, making 6 leads total.
These leads must be cut in order to remove the bridge from the alternator. These leads will have to be soldered back together on reassembly. Keep the cut as clean as possible.
Use wire cutters to cut all 6 of the leads on the perimeter of the bridge.

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手順7

Honda CSC29 Voltage Regulator Replacement: 手順 7、 3の画像 3

If necessary, use a pry bar to gently raise the top of the bridge assembly off the alternator
Be extremely careful with the pry bar. Excessive force will damage the bridge assembly.
Make sure the cut ends of the copper leads are straight to make bridge assembly easier to pull off.

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手順8

Honda CSC29 Voltage Regulator Replacement: 手順 8、 3の画像 3

Remove the lower section of the bridge assembly
Use of a pry bar may be necessary. Be gentle.

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手順9 Voltage Regulator

Honda CSC29 Voltage Regulator Replacement, Voltage Regulator: 手順 9、 2の画像 1

Honda CSC29 Voltage Regulator Replacement, Voltage Regulator: 手順 9、 2の画像 2

Locate the small metal clasp attaching the voltage regulator to the the rectifier.
Loosen the clasp using a pair of needle-nose pliers

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手順10

Using a pair of wire cutters, cut the copper winding attaching the voltage regulator to the rectifier
Be very careful with any cuts. Keep them as clean as possible, as any severed connections will need to be soldered on reassembly.

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手順11

Honda CSC29 Voltage Regulator Replacement: 手順 11、 3の画像 3

Remove the voltage regulator from the alternator
When connecting the new voltage regulator, carefully read the manufacturer's instructions on how to connect it to different types of alternators.

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