Chevrolet DB90 Series, Руководство по обслуживанию

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Sec. 6Y -139
A. C. GENERATING SYSTEM NON-INTEGRAL TYPE
Figure 2 2 —A d ju stin g Field Relay A ir G ap
(Two-Unit Type RegulatorI (TypicalI
2. On v e h icle s equipped with the 9000590 type
regulator, carefully pull w iring h arness connector
from regulator.
3. On a ll other v e h ic le s, lift up on regulator
w iring h arness connector, then pull connector from
regulator.
4. Rem ove regulator mounting sc r e w s and
rem ove the regulator.
INSTALLATION
IMPORTANT: Make su re the negative battery
cable is disconnected from the regulator.
1. P la c e reg u la to r-to -g en era to r ground w ire
on regulator mounting and in sta ll regulator attach­
ing sc r e w s .
2. On v e h ic le s equipped with the 9000590 r e g ­
u lator, in sert w iring h arn ess connector into r e g ­
ulator recep ta cle. Make su re connector is fully
engaged with term in als.
3. On a ll other v e h ic le s, lift up on regulator
term in a l latch and in se r t h arn ess connector over
te r m in a ls. Make su r e connector is fully engaged
over term in a ls and locked in position.
4. Connect negative battery cable to battery.
REGULATOR REPAIR
(MODEL 1119507 OR 1119515)
W hile m ost regulator adjustm ents are made
on the v eh icle a s outlined under "On-Vehicle Main­
tenance, T e s ts , and Adjustm ents" p rev io u sly , the
regulator may be rem oved for field relay point
opening and a ir gap adjustm ent.
IMPORTANT: The voltage regulating contacts
should never be cleaned a s they a re made of sp ecia l
m aterial that may be destroyed by cleaning.
A C C E S S PLU G TO
V O LT A G E ADJU STM EN T
Figure 2 3 —Transistorized Type Regulator (Typical)
fe e le r gauge between the contact points with the
arm ature in its norm al r e st position .
2. If adjustment is n e c e ssa r y , carefully bend
the arm ature stop.
3. R eferring to figure 22, in se rt an 0.015-in ch
fe e le r gauge between the arm ature and core and
exert just enough p r e ssu r e on the arm ature to a l­
low it to touch the gauge. The contact se t should
just c lo se at th is tim e.
No. 7 No. 2 No. 1 No. 4
No. 6 No. 3 No. 5
t
-
sjs
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FIELD RELAY ADJUSTMENT
1. R eferring to figure 21, in sert an 0.030-in ch
Figure 2 4 —Regulator w ith Cover Rem oved
CHEVROLET SERIES 70-90 HEAVY DUTY TRUCK SHOP MANUAL SUPPLEMENT