Chevrolet CHEVY VAN G10 SERIES Service Manual page 221

ENGINE ELEC TR IC A L 6Y-10
The double-contact regulator assembly (Fig. 2c) consists o f
a double-contact voltage regulator unit and a field relay unit.
This unit uses tw o sets o f contact points on the voltage
regulator un it to obtain desired field excitation u nder variable
conditions. A wiring diagram o f th e regulator internal circuit is
illustrated in Fig. 2c.
Wiring harnesses are p ro tected by fusible links. A fusible
link is a length o f special wire, norm ally four gauges smaller
th a n the circuit it is protecting, used in circuits th a t are n ot
norm ally fused such as the ignition circuit. The same size wire
FIELD RELAY
" LATCH"
" F " TERMINAL
N O . 2 TERMINAL
N O . 3 TERMINAL
N O . 4 TER M IN A L
Fig. 1c—10 DN Series 100B Type Delcotron
w ith a h y palon insulation m ust be used w hen replacing a
fusible link.
The links are located in the engine com partm ent wiring
harnesses and each link will be identified w ith its gauge size.
On m ost models there is a 16 gauge, red wire fusible link
installed as an integral part o f the positive b attery cable or
located betw een th e solenoid b a tte ry term inal and the ju n c ­
tio n block. Refer to the wiring diagrams included in Section
12
V O LTA G E
REGULATOR
Fig. 2c—Double Contact Regulator
o f this m anual for location of the fusible links.
DOUBLE CONTACT
INDICATOR
LAMP
VOLTAGE
REGULATOR
C H E V Y V A N SH O P M A N U A L