GENERATOR: (12 VDC) - See Figure 1
The generator, driven by pulley and V-belt arrangement from the engine's electrical accessory drive shaft, is
dependent upon correct engine speed to produce the required voltage. This unit supplies 12 Volt DC current for the paver
Control System and battery charging. In standard automobile fashion the battery supplies current for engine starter,
ignition, lights, horn, screed heater, etc. It also supplies current to release the paver brakes (magnetic). It is therefore
vitally important that the battery be kept in top efficiency condition at all times so that a full 12 volts are
delivered to all control circuits! A battery with bad cells will draw so much generator current and lower its available
voltage so much that clutch coils and solenoid coils will not "pull in" properly. This allows clutches to slip and burn rapidly.
IMPORTANT! Do not start a paver by jumping an unsatisfactory battery! Replace the battery with one in top condition so
that when the engine is idling the electric clutches and brakes work properly.
CAUTION! The generator is equipped with a voltage regulator which includes
rectifier and isolation diodes. When charging or installing a battery be sure
proper polarity is observed. Ground polarity of the battery and ground polarity of
the generator must be the same. Reversal of polarity will destroy the diodes
in the generator voltage regulator!
Figure 3. 12 Volt Battery Location - LH
Walkway Removed
Figure 4. Location Of 12 VDC Circuit Breakers
CIRCUIT BREAKERS FOR 12 VOLT DC SYSTEM
There are eight circuit breakers for the 12 volt DC electrical system. Four of them require manual reset after
overload cut-off. Four are automatic reset units. These automatic breakers have no overload indicator to show their
status. The circuit breaking function simply repeats until the overload situation in that circuit is corrected. The circuit,
rating and location of each breaker is as follows:
Reset
Location
Circuit
Rating
Throttle Solenoid ....................................................... 15A ........................................................... Manual.......................................................Instru. Panel
Travel Clutches ......................................................... 15A ........................................................... Manual.......................................................Instr. Panel
Feed Clutches ........................................................... 15A ........................................................... Manual.......................................................Instr. Panel
Screed Burner ........................................................... 30A ........................................................... Manual.......................................................Instr. Panel
Gauge Lights............................................................. IOA............................................................ Auto...........................................................Instr. Box
Front Flood Lights ..................................................... 15A ........................................................... Auto...........................................................Instr. Box
Conveyor Flood Lights............................................... 15A ........................................................... Auto. ..........................................................Instr. Box
Rear Flood Lights ...................................................... 5SA ........................................................... Auto...........................................................Instr. Box
RE-SETTING CIRCUIT BREAKERS
IMPORTANT! Whenever a circuit breaker is tripped by an overload do not reset the breaker until a thorough
check has been made to locate the cause of the overload. The tell-tale odor of over-heated electrical equipment and
discolored or melted wire insulation often help to locate a trouble source. It is best that someone with good electrical
system knowledge perform this trouble check and reset the breaker.
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