Toyota Supra 1990 Manual page 387

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CHARGING SYSTEM - Alternator
CH-15
CH0357
CH0490
CH0607 CH0316
CH0491
6. INSTALL RECTIFIER HOLDER
(a) Install the four rubber insulators on the lead wires.
(b) Install the rectifier holder with the four screws.
7. INSTALL IC REGULATOR AND BRUSH HOLDER
[7M-GE (MIT)]
(a) Install the brush holder cover to the brush holder.
(b) Install the IC regulator together with the brush holder
to the rectifier end frame horizontally as shown in the
illustration.
HINT:
Check that the brush holder's cover doesn't slip
to one side during installation.
(c) Install the five screws until there is a clearance of at
least 1 mm (0.04 in.) between the brush holder cover
and connector.
(d) Fit the brush holder cover.