Page 1012 - Workshop Manual - Aumark (BJ1051)

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Clutch-clutch components

(d). Inspect the spline of driven plate for wear
as shown in the illustration. Install the
driven plate on the spline axle and measure
the fit clearance between the driven plate
to the spline axle with a clearance gauge,
replace with a new one if it is beyond the
limit value of operation.

Fit clearance between the driven plate
and the spline:
Fit clearance
Vehicle
Standard Limit
1051 series 0.075 mm 0.025~0.125 mm
1061 series 0.075 mm 0.025~0.125 mm
1089 series 0.078 mm 0.033~0.123 mm

8. Overhaul of clutch platen
(a). Inspect whether the platen is burned
excessively, or whether it is not smooth or
has distinct scars. Carry out polishing
repair on the slight burning or unsmooth
surface of the platen. If it has serious
32 scratches or cracks, replace it with a new
one.

(b). Inspect the wear thickness of the platen as
shown in the illustration. If it is beyond the
limit value, replace it with a new one.

Wear thickness of the clutch platen:

Vehicle Wear thickness of the platenLimit

1051 series 1.0 mm
1061 series 1.0 mm
1089 series 1.0 mm

(c). As it is shown in the illustration, inspect
whether the spring tops of the platen
membrane are at the same height.

Page 1012