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POINTS JUST
TOUCHING
(311)
ELECTRICAL SYSTEMS
GENERATING SYSTEM
10-35
Figure 10-27-Cleaning Voltage Regulator Flat Contact Points
flat file will not clean out this cavity. File just
enough to remove oxidation.
Never use emery
cloth or sandpaper on contact points since par-
ticles of emery or sand left on points will cause
them to arc and
burn.
After contact supports are returned to posi-
tion, reset air gaps (subpar. d, below).
b.
Replacing
Upper Contact Suppo rt s
If new upper contact supports are required
or if supports have been removed, they should
be installed as shown in figure 10-28. Note that
the connector strap is connected to voltage
regulator
contact
support but is insulated from
the current regulator contact
support.
Note
position of the flat a
nd tubular
insulators. After
installation
of contact supports, reset air gaps
(subpar.
d, below).
c.
Adjustment
of Cut out
Re
la y
The cutout relay requires three checks and
adjustment: Air gap, point opening, and clos-
ing voltage.
UPPERC
O N T ACT
Figure 10
-28-Relationship
of
Connector Strap, Insulators
and
Upper
Contact
Supports
Figure 10-29-Adjustment of Cutout Relay Air Gap
1. Place finger on armature directly above
core and move armature down until contact
points just close. If both sets of points do not
close simultaneously, bend spring fingers so
that they do.
With points just closed,
measure
air gap between armature and center of core;
gap should be .020", measured with feeler
gauge. Adjust air gap, if necessary, by loosen-
ing armature mounting screws and raising or
lowering armature as required. Tighten screws
securely and recheck air gap. See figure 10-29.
2. Check contact point opening with feeler
gauges. Opening should be .020". Increase or
decrease point opening, if necessary, by bend-
ing the upper armature stop. See figure 10-30.
3.
Check and adjust closing voltage as de-
scribed in paragraph 10-29, after installation
of regulator on car, or while connected to a
proper test generator and battery.
Figure 10-30-Adjustment of Cutout Relay Contact Point Opening
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