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PART 13-4-ALTERNATOR REGULATOR
13-25
moved from the vehicle for further
adjustment or
repair.
To reset the regulating range
11. Increase
the
engine speed to
2700- 2800 R.P.M., adjust the load
to 8
- 1
0 amps, the voltage should
be within
-0.2 to
+0.4 volts.
12. If the
re~ulating
range exceeds
+0.4 increase/reduce the air gap
between the armature and core.
13. If the regulating range exceeds
the permissable decrease of 0.2 volts
enlarge the air gap.
When it has been found necessary
to adjust the air gap to achieve the
specified regulating range voltage must
be checked to ensure that it remains
within tolerance.
14. After the adjustments have
been satisfactorily completed seal
the cover with Polyester tape. A spot
of sealer should be applied at the
start of the tape underneath the over-
lap to prevent water ingress.
Mechanical adjustments
To carry out the mechanical ad-
justments the regulator must be re-
moved from the vehicle. See Fig. 32.
1. Armature
air
gap: (A)
With the armature in the rest
position the gap between the arrna-
ture and the core of the elctro-
magnet should be
.032
- .050".
This may be adjusted by bending
the lower contact bracket.
2. Upper contact gap: (B)
The gap between the upper or
high speed contacts should be .008 -
.016". Adjust by bending the upper
contact bracket.
Ensure that the contacts are in
alignment with each other.
3. Armature air gap -
upper
points closed: (C)
Close the upper points by applying
light finger pressure to the armature,
gap should be .012- .028".
4. Armature to bracket gap: (D)
The gap between the armature and
the bracket should be
.008
-
.028".
Adjust by bending the bracket.
Mter making any mechanical ad-
justments to the regulator the electri-
cal settings must be checked and
adjusted.
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