Chevrolet DB90 Series, Руководство по обслуживанию

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S ec. 6Y-117
STARTING SYSTEM
r ©Mi"
I B A T T ER r I
1__ _ _ _ _ _ _ _ ® J - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - *
\ STARTER ASSEM.
Figure 1—Starter Autom atic D isengagem ent
and Lock-out (Series TE90)
STARTER AUTOMATIC
DISENGAGEMENT AND LOCK-OUT
Inform ation application to the sta rter auto­
m atic disengagem ent and lock -ou t sy stem u sed on
v e h ic le s covered by this supplem ent rem ain s the
sam e as covered in the 1970 Heavy Duty Truck
S erv ice Manual ST135-70 except as follows:
SERIES TE90
(WITH V 8-637 ENGINE)
A typical in terlock sy ste m used on S e r ie s
TE90 is shown in figure 1. With ignition sw itch
is placed in "START" position , current from the
battery is supplied through the ignition sw itch and
sta r te r m agnetic sw itch co il winding to ground
through norm ally c lo sed contact points within the
sta r te r control rela y . With windings energized,
sw itch contacts w ill c lo s e to com plete circu it to
sta r te r solen oid . When engine is started , current
from "R" term inal on generator w ill flow through
sta r te r control relay co il windings. With windings
en ergized , sta r te r control relay contact points w ill
open to break circu it betw een battery and sta rter
m agnetic sw itch.
Figure 2 —Starter Autom atic D isengagem ent
and Lock-Out (Series H C /JC 90) (Typical)
SERIES HC/JC90
(WITH CUMMINS DIESEL ENGINE)
A typical in terlock sy ste m u sed on th ese v e ­
h ic le s is shown in figure 2.
When control sw itch is placed in "START"
position , current w ill flow through sta rter magnetic
sw itch coil windings and frequency sen sin g control
Figure 3 —Starter Autom atic D isengagem ent
and Lock-Out (Series JB /M B /M C 9 0 ) (Typical)
CHEVROLET SERIES 70-90 HEAVY DUTY TRUCK SHOP MANUAL SUPPLEMENT