Specifications:
• The integral rectifier system utilizes 12: 50-amp diodes
mounted in multiple aluminum heat sinks for efficient
heat dissipation during high-output operation.
• Aluminum housings
• Bi-directional fan
• Front bearing: 305 cartridge type
• Enclosed brush system
• Operation Ambient Temperature Range (-40º to 200ºF)
• Negative Ground Configuration
• Regulator Adjustment Range 13.6 to 15.4 volts
• Batteries may start to gas at 14.3 volts
• Max. Operating RPM 8,000
• Check all wiring for burnt or loose electrical connections.
Repair as needed.
• Check all grounds and electrical connections to ensure
they are clean and tight.
a
. Alternator ground to chassis frame.
b
. Motor block ground to chassis frame.
c
. Chassis battery ground to chassis frame.
d
. Alternator positive output to isolator center terminal.
• Inspect the alternator for damage. A broken fan blade
can damage an alternator or make it out of balance.
• Check belt, pulley and fan for wear. Replace as need-
ed.
• Never attempt to disconnect the battery or battery wire
from the alternator with the engine running. This can
cause damage to the alternator or the regulator.
• The pulley for the alternator should be torqued to 80
foot pounds.
• Chassis battery voltage with the engine OFF should range
from 12.2 to 12.7 vdc.
• Chassis battery voltage with the eninge at idle, should
range 13.5 to 14.2 vdc.
• The output of the alternator range is 13.6 to 15.4 vdc.
Connect a voltmeter to the (B+) terminal of the alterna-
tor and chassis ground. Idle the engine up to 1200 rpm.
• Connect a clamp-on amp-meter, if availible, to the posi-
tive battery cable to verify the battery state/rate of
charge.
Electrical Systems - Chassis
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S I G N A T U R E
9 • 2 3 0
Alternator Testing Procedure
Water Level should be 3/8” below vent tube.
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Страница 317: ...Chassis Information SIGNATURE 1 0 3 1 7 Date Mileage Dealer Address Service Remarks CHASSIS LOG...
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Страница 320: ...Chassis Information SIGNATURE 1 0 3 2 0 Date Mileage Dealer Address Service Remarks CHASSIS LOG...