WASSELL WW10221N - User Manual

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PART NUMBER WW10221N

6 volt negative earth DC regulator

Important

- please read these instructions carefully prior to ﬁ tting. This unit will be damaged if

connected with reverse polarity. Before connection please check your chassis earth polarity and make

sure you have the correct regulator for your earth polarity.

Please note the wiring instructions also require a 15 Amp fuse to be connected in the red wire. The

regulator will cause this fuse to blow if the battery is connected backwards. If the fuse blows, re-check

that the wiring and battery polarity are correct. Running the regulator with reverse polarity, even for a

short duration, will damage it beyond repair. If in doubt contact an expert for advice.

Disconnect the ﬁ eld coil wire marked 1 from F and connect it to the D terminal

Disconnect ﬁ eld wire marked 2 from earth screw and connect it to F terminal

Old conﬁ guration for

mechanical regulator

Revised conﬁ guration for

negative earth solid state unit

FIELD

COIL

FIELD

COIL

1 move this ﬁ eld wire to D terminal

2 move this ﬁ eld wire to F terminal

Field wires must be connected as above drawing

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Summary

Crucial warnings about reverse polarity and checking chassis earth polarity before installation.

Details on required wiring, including a 15 Amp fuse, and its role in preventing reverse polarity damage.

Procedure for testing and polarizing the dynamo using battery power and temporary jumpers.

Visual guide illustrating the correct wiring for a negative earth DC regulator system.

Steps to re-establish residual magnetism in dynamos that have lost it due to prolonged disuse.

General