ENGINE-ELECTRICAL 6Y-16
F ig . 15c—F ie ld R esistance Tests
5 .
If the ohm m eter reads low the winding is shorted
o r grounded.
NOTE:
The sp ecified resistan ce value can be
determ ined by dividing the voltage by the cu r
rent given in specification s. Since the reading
is taken through the adapter, leads, brushes and
slip rin gs, the ohm m eter reading on a good fie ld
winding w ill be sligh tly higher than the sp ecified
value. T h is is true because the sp ecified value
is fo r an ohm m eter reading d ire c tly a c ro s s the
slip rin gs.
6. Disconnect ohm m eter a n d reconnect the battery
ground strap.
Testing Circuit Resistance
E x c essive resistan ce in the sensing circu it, consisting
o f a ll fie ld leads and the regu lator, can cause an o v e r
charged battery.
1. Turn on switch but do not start engine.
2. A ltern a tely connect a vo ltm e te r as shown in P a r t 1
and P a r t 2 in F igu re 16c.
3. If the two v o ltm e te r readings total m ore than .3
volt, check fo r e x c e s s iv e resistan ce in fie ld circu it
leads. If these leads a re satisfa ctory, the fie ld rela y
contacts may have e x c e s s iv e resistan ce. In this case
rep lace the rela y.
V o lta g e Setting Adjustm ent
A voltage setting not ta ilo re d to m eet v e h icle r e q u ir e
ments can resu lt in an undercharged o r an overch arged
b attery. T o adjust the voltage setting, proceed as follow s:
1. Connect a v o ltm e te r to the adapter as shown in
F igu re 14c, P a r t 1.
2. Connect an am m eter in the c ircu it at the " B A T ”
term in al on the gen erator.
F ig . 16c—C ir c u it R esistance Test
3. Turn a ll a c c e s s o rie s off.
4. O perate gen erator at approxim ately 3000 rpm (1500-
2000 engine rpm ).
5. The gen erator output should be at lea st 10 am peres
below the rated gen erator output fo r this check.
Exam ple:
If gen erator rated output is 130 amps, the
regu lator is lim itin g voltage i f am perage is 120
o r le s s .
6. T o adjust voltage setting, rem ove pipe plug and
turn slotted adjusting button inside regu lator.
NOTE:
A fte r two notches in each d irection ,
there is a p ositive stop.
70 F or an undercharged battery, ra is e voltage setting
by turning one notch and then check fo r an im proved
F ig . 17c—P u lle y Removal
D IS C O N N E C T
FROM
REGULATOR
OHM METER
W IR IN G
H A R N E S S
TO G R O U N D
O N GENERATOR
C = ^
O HM METER
CHEVROLET TRUCK SERVICE MANUAL
Содержание 10 Series 1970
Страница 1: ......
Страница 38: ...HEATER AND AIR CONDITIONING 1A 8 CHEVROLET TRUCK SERVICE MANUAL...
Страница 57: ...HEATER AND AIR CONDITIONING 1A 27 Fig 35 Compressor M ountings CHEVROLET TRUCK SERVICE MANUAL...
Страница 75: ...HEATER AND AIR CONDITIONING 1A 45 Fig 65 R oof M ounted System W iring Diagram CHEVROLET TRUCK SERVICE MANUAL...
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Страница 101: ...BODY IB 23 s A ADJUSTER SCREW AND LEVER ASSY Fig 5 9 Exploded V iew o f Level Ride Seat CHEVROLET TRUCK SERVICE MANUAL...
Страница 137: ...BODY IB 59 VIEW IN DIRECTION OF ARROW A Fig 137 A u x ilia ry Seat CHEVROLET TRUCK SERVICE MANUAL...
Страница 142: ...CHEVROLET TRUCK SERVICE MANUAL Fig 5 10 30 Series Truck Frame FRAME 2 4...
Страница 145: ...CHEVROLET TRUCK SERVICE MANUAL FRAME 2 7...
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Страница 228: ...REAR SUSPENSION AND DRIVE LINE 4 52 I Fig 88 Forward Rear A xle Assembly Exploded V iew CHEVROLET TRUCK SERVICE MANUAL...
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Страница 383: ...ENGINE FUEL 6M 19 F ig I t Engine Fuel S p ecial Tools CHEVROLET TRUCK SERVICE MANUAL...
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Страница 432: ...Fig 1 C lu tch Linkage Except P 2 0 4 0 Series...
Страница 433: ...CLUTCHES AND TRANSMISSIONS 7 3 Fig 2 C lutch Linkage Step Van P 20 40 Series CHEVROLET TRUCK SERVICE MANUAL...
Страница 506: ...FUEL TANK AND EXHAUST SYSTEMS 8 8 Fig 10 Vent Lines Cab M ounted Tanks CHEVROLET TRUCK SERVICE MANUAL...
Страница 528: ...Fig 31 T yp ica l Power Steering Hose Routings...
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Страница 566: ...ELECTRICAL BODY AND CHASSIS 12 4 Fig 3 Front Lighting Assemblies CHEVROLET TRUCK SERVICE MANUAL...
Страница 567: ...ELECTRICAL BODY AND CHASSIS 12 5 Fig 4 C learance and Id e n tific a tio n Lamps CHEVROLET TRUCK SERVICE MANUAL...
Страница 568: ...ELECTRICAL BODY AND CHASSIS 12 6 Fig 5 Rear Lighting Composite CHEVROLET TRUCK SERVICE MANUAL...
Страница 597: ...ELECTRICAL BODY AND CHASSIS 12 35 Fig 37 Engine Com partm ent CE M E60 CHEVROLET TRUCK SERVICE MANUAL...
Страница 598: ...ELECTRICAL BODY AND CHASSIS 12 36 TO FRAME i f Fig 38 Engine Com partm ent C D 50 CHEVROLET TRUCK SERVICE MANUAL...
Страница 608: ...ELECTRICAL BODY AND CHASSIS 12 46 Fig 48 Instrument Panel C A40 CE CS ME50 Exc 02 CHEVROLET TRUCK SERVICE MANUAL...
Страница 610: ...ELECTRICAL BODY AND CHASSIS 12 48 Fig 50 Instrument Panel CE M E60 03 13 CHEVROLET TRUCK SERVICE MANUAL...
Страница 614: ...ELECTRICAL BODY AND CHASSIS 12 52 Fig 54 Instrument Panel SA40 50 CHEVROLET TRUCK SERVICE MANUAL...
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Страница 649: ...SPECIFICATIONS 9 ENGINE SECTION 6 CHEVROLET TRUCK SERVICE MANUAL...
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