California Air Tools 3010 Service Manual Page 449

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ELECTRICAL SYSTEM 17-29
Alternator
Install:
Collar
Pulley [A]
Use the following, tighten the locknut.
Socket Wrench [B] (Special Tool: 57001-1236)
Deep Socket Wrench [C]
Special Tool - Socket Wrench, Hex 22: 57001-1236
Torque - Alternator Pulley Locknut: 11 N·m (1.1 kgf·m, 97
in·lb)
Alternator Operational Inspection
Check the battery condition.
Conventional Type Battery (see Charging Condition
Inspection (Conventional Type Battery) in the Periodic
Maintenance chapter)
Sealed Type Battery (see Charging Condition Inspection
(Sealed Type Battery))
NOTE
Always check the battery condition before condemning
the alternator. The battery must be fully charged in or-
der to conduct accurate alternator inspection.
Check the wiring (see Wiring Inspection).
Warm up the engine to bring the components up to their
normal operating temperatures.
Stop the engine.
Removethe30Afanfuse(seeFuseRemoval).
Connect the hand tester [A] (range DC 25 V) and ammeter
[B] (range DC 40 A, after the engine start) as shown in the
figure.
Battery [C]
50 A Fuse [D]
Alternator [E]
Load [F]
Measure the alternator output voltage and amperage at 2
000 rpm with the light switch turned OFF.
Alternator Output Voltage
Standard: 13.3 14.8 V at 25°C (77°F)
Alternator Output Amperage (no load)
Standard: 10 A or less
Stop the engine.
Install the 30 A fan fuse (see Fuse Installation).
Measure the alternator output voltage and amperage at 2
000 rpm with the light switch turned ON.
Alternator Output Voltage
Standard: 13.3 14.8 V at 25°C (77°F)
Alternator Output Amperage (load)
Standard:
20 A or more
If the readings are not within the specified range, check
the alternator.
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