Section 6Section 6
Electrical SystemElectrical System
Introduction.Introduction. This machine incorporates aThis machine incorporates a
12-volt DC el12-volt DC electricaectrical system. l system. Optional equipmOptional equipmentent
selected by the customer will determine the elec-selected by the customer will determine the elec-
trical equipment to be installed in addition to thetrical equipment to be installed in addition to the
standard standard electrielectrical cal systemsystem..
Major Components.Major Components. The 12 volt DC electricalThe 12 volt DC electrical
system consists of two batteries, battery chargingsystem consists of two batteries, battery charging
alternator, voltage regulator, starter switch, starteralternator, voltage regulator, starter switch, starter
and starter soland starter solenoid. enoid. The remainder The remainder of the electriof the electri--
cal system consists of lights and / or gauges,cal system consists of lights and / or gauges,
switcswitches, circuit hes, circuit breakers and breakers and accessaccessory circuits.ory circuits.
The above items are included as standard equip-The above items are included as standard equip-
ment in the electricment in the electrical systemal system. . Refer to IllusRefer to Illustrationstrations
6-1 through 6-16 for location of components and6-1 through 6-16 for location of components and
wiring diagrams.wiring diagrams.
Batteries.Batteries. This machine is equipped with twoThis machine is equipped with two
industriindustrial type, long lial type, long life batteriesfe batteries. . The batteriesThe batteries
are perishable and require servicing on a regularare perishable and require servicing on a regular
basis. basis. Batteries that aBatteries that are properly cre properly cared for can beared for can be
expected to give loexpected to give long trouble-frng trouble-free servicee service. e. Per-Per-
form the following procedures to maintain the bat-form the following procedures to maintain the bat-
teries in a serviceable condition.teries in a serviceable condition.
WARNINGS:WARNINGS:
SS
Under no circumstances allow any sparks orUnder no circumstances allow any sparks or
open flamopen flames around bates around batteries. teries. No smokinNo smoking.g.
Batteries produce a highly flammable gasBatteries produce a highly flammable gas
which could lead to battery explosion ifwhich could lead to battery explosion if
ignited.ignited.
SS
Never check the battery by placing a metalNever check the battery by placing a metal
object across the battery posts.object across the battery posts.
CAUTION:CAUTION:Overfilling cells of the batteryOverfilling cells of the battery
can cause poor performance or early failure.can cause poor performance or early failure.
1. 1. The batterThe battery’s y’s electrolelectrolyte leyte level svel should behould be
checked monthly or every 250 hours, whichev-checked monthly or every 250 hours, whichev-
er comes firser comes first. t. Add distillAdd distilled water if necessared water if necessaryy
to bring the electrolyte level to 3/8 inch aboveto bring the electrolyte level to 3/8 inch above
the separator the separator plates. plates. Do not overDo not overfill.fill.
2. 2. Keep the top of thKeep the top of the battere batteryy, term, terminalinals ands and
cable clamps ccable clamps clean. lean. When necessarWhen necessaryy, wash, wash
them with a solution of baking soda and water,them with a solution of baking soda and water,
and rinse with clean water.and rinse with clean water.
CAUTION:CAUTION:Do not allow the soda andDo not allow the soda and
water solution to enter the battery cells.water solution to enter the battery cells.
3. 3. InspInspect the cect the cablesables, clam, clamps and hold dowps and hold downn
bracket rbracket regularlyegularly. . Replace any damReplace any damagedaged
parts. parts. Clean and re-Clean and re-apply a liapply a light coating ofght coating of
grease to the terminals and cable clampsgrease to the terminals and cable clamps
when necessary.when necessary.
NOTE:NOTE: A number of devices and applications areA number of devices and applications are
available available on on the the commercial commercial market market to to deter deter corro-corro-
sion sion on on battery battery terminal terminal connections.connections.
4. 4. Check tCheck the electrhe electrical sical system ystem if the batif the batterytery
becomes discharged repeatedly.becomes discharged repeatedly.
5. 5. If the batIf the battery itery indicator ndicator illumiilluminates, the nates, the alterna-alterna-
tor or alternator circuit is defective.tor or alternator circuit is defective.
NOTE:NOTE: If the truck is to be inoperative or idle forIf the truck is to be inoperative or idle for
more more than than 30 30 days, days, remove remove the the battery. battery. The The bat-bat-
tery shtery should be storeould be stored in d in a cool, dry placa cool, dry place. e. TheThe
electrolyte level should be checked regularly andelectrolyte level should be checked regularly and
the battery kept fully charged.the battery kept fully charged.
Booster Battery Connection Procedure.Booster Battery Connection Procedure. Acci- Acci-
dentally reversing the battery connections must bedentally reversing the battery connections must be
avoided. avoided. If a booster batterIf a booster battery is to be used, firy is to be used, firstst
connect the positive (+) terminal of booster batteryconnect the positive (+) terminal of booster battery
to the positive (+) terminal of discharged batteryto the positive (+) terminal of discharged battery
and then connect the negative (-) terminal ofand then connect the negative (-) terminal of
booster battery to engine or body ground (-)booster battery to engine or body ground (-)
(Refer to the decal below)(Refer to the decal below). . Never crNever cross polaritoss polarity ofy of
the battery termthe battery terminals. inals. DiscDisconnect cables ionnect cables in then the
exact reverse order from above.exact reverse order from above.
SMOKING, FLAMES, ARCS, OR SPARKS MAY RESULT IN BATTERY EXPLOSION.SMOKING, FLAMES, ARCS, OR SPARKS MAY RESULT IN BATTERY EXPLOSION.
KEEP METAL TOOLS KEEP METAL TOOLS AWAAWAY FROM Y FROM BATTERBATTERY TERMINALS.Y TERMINALS.
BATTERY CONTAINS SULFURIC ACID WHICH WILL BURN SKIN ON CONTACT;BATTERY CONTAINS SULFURIC ACID WHICH WILL BURN SKIN ON CONTACT;
WEAR RUBBER GLOVES AND EYE PROTECTION WHEN WORKING WITH BATTERY.WEAR RUBBER GLOVES AND EYE PROTECTION WHEN WORKING WITH BATTERY.
FLUSH WITH WATER AND SEEK MEDICAL ATTENTION IN CASE OF CONTACT.FLUSH WITH WATER AND SEEK MEDICAL ATTENTION IN CASE OF CONTACT.
WHEN JUMP WHEN JUMP STARTINGSTARTING::
DO NOT LEAN OVER BATTERY WHEN MAKING CONNECTION.DO NOT LEAN OVER BATTERY WHEN MAKING CONNECTION.
FIRST CONNECT POSITIVE (+) TERMINAL OF BOOSTER BATTERY TOFIRST CONNECT POSITIVE (+) TERMINAL OF BOOSTER BATTERY TO
POSITIVE (+) POSITIVE (+) TERMINAL OF TERMINAL OF DISCHARGED BATTERDISCHARGED BATTERY.Y.
THEN CONNECT NEGATIVE (-) TERMINAL OF BOOSTER BATTERY TO ENGINE ORTHEN CONNECT NEGATIVE (-) TERMINAL OF BOOSTER BATTERY TO ENGINE OR
BODY GROUND (-)BODY GROUND (-). . NEVER CROSS POLARITY OF TERMINANEVER CROSS POLARITY OF TERMINALS.LS.
DISCONNECT CABLES IN EXACT REVERSE ORDER.DISCONNECT CABLES IN EXACT REVERSE ORDER.
DANGER
DANGER
3375 2453375 245
Alternator.Alternator. The standard alternator for the Cum-The standard alternator for the Cum-
mins QSM11-C330 engine is a 100 amp alterna-mins QSM11-C330 engine is a 100 amp alterna-
tortor. . It should be expectIt should be expected to give long, troubled to give long, trouble-e-
free service; however, the diodes and transistorsfree service; however, the diodes and transistors
in the alternator circuit are very sensitive and canin the alternator circuit are very sensitive and can
be easily destrbe easily destroyed. oyed. The followThe following precautioning precautionss
To Next Page
Loading...