Alternator Service

General Alternator Information

Type - A127-65
Part No - AMR4249

After an outback trip, abrasive track dust gets everywhere.
The unsealed rear needle bearing runs directly on the rotor's shaft
Cleaning and lubricating after every trip or 20,000km or so, greatly extends life.

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	General view of rear assembly
	A 5.5mm nut driver reaches the recessed regulator assembly fixing screws
	A deep 10mm socket reaches endplate fixing nuts Disconnect insulated spade connector from regulator assembly
	Removed regulator and brush assembly
	Remove the nuts and insulating washers from the B+ and W terminals. Undo the recessed 5.5mm screw holding the black plastic cover on the right - remove cover
	Undo the 5.5mm screw under the regulator securing the diode pack heatsink. The W terminal is uppermost. Lift end plate clear of stator. (tap gently with plastic mallet)
	View of heatsink assembly with endplate removed showing sliprings and bearing surface on rear of shaft Remove insulating bushes from B+ and W terminals to avoid losing them.
	Dust contaminated grease in the unshielded rear needle roller bearing. Clean and relubricate needle rollers
	Re-assembly is the reverse of the assembly procedure. Note:- Don't forget to re-fit the insulating bushes to the B+ and W terminals before replacing endplate.