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kept tight and free from corrosion or anything that will cause
high resistance in the circuit. The generator should be lubri-
cated according to instructions in the Lubrication Section.
Maintenance-
The maintenance services on the generating system, espe-
cially the voltage and current regulator, require the use of spe-
cial equipment not generally available to the vehicle owner.
NOTE: Never tamper with the voltage and current regulator
unless you .have special testing equipment and are trained
to do this kind of work.
At periodic intervals of approximately 5000 miles. the ter-
minals, external connections and wiring, mounting, belt. and
pulley should be checked. The commutator and brush inspec-
tion can be made through the openings in the commutator end
frame. If the commutator is dirty or if the brushes are badly
worn, it is best to have your Chevrolet dealer make the neces-
sary test and repairs.
Lamps
Description. All Chevrolet trucks are equipped with "Sealed
Beam" headlight units in which the light source, the reflector,
lens and gasket are all assembled in a securely sealed
unit.
Figure 62 shows the component parts of the light. With this
sealed unit dirt or moisture cannot enter the assembly; there-
fore, it retains its light reflecting ability indefinitely.
GASKET
SOCKET AND
WIRING ASSEMBLY
MOUNTING
RING
RETAINING
RING
·
fig. 62-Head/amp Part.
·61 •
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