Thermo King SLXi Spectrum, Руководство по обслуживанию

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Electrical Maintenance 8-4
8. Attach a clamp-on ammeter to the 2A wire connected to the B+ terminal on the alternator.
9. Connect a voltmeter between the B+ terminal and a chassis ground.
10. Start the unit and operate it in high speed.
11. Connect a jumper wire between the F2 terminal and a chassis ground. This will full field the alternator.
CAUTION: DO NOT full field the alternator for more than seven seconds while checking the meter readings, or the electrical
system may be damaged.
12. Check the amperage in the 2A wire and record the reading. Check the voltage at the B+ terminal and continue to observe this
voltage for a few seconds to see if it increases, decreases, or stays the same. Note the change in voltage and record the voltage
reading.
Amperage in the 2A wire =____amps.
Voltage at the B+ terminals =___volts.
The voltage at the B+ terminal should be 13 to 18 volts and the amperage in the 2A wire should be at least as high as the rated
output of the alternator.
Amperage in 2A Voltage at B+ Problem / Solution
At or above rated output At or above battery voltage and
increasing Voltage regulator defective / Replace
voltage regulator and brush assembly
Approximately 60% of rated output Approximately equal to battery
voltage and does not change, or rises
slightly Rectifier diode defective / Repair or
replace alternator
Low or no output Less than or equal to battery voltage
and decreasing Stator windings, field windings, brush
or diode defective / Perform Field
Current Test to check brushes and field
coil, or repair or replace alternator
Diagnosis Chart (Alternator P/N 44-8500)
Australian Bosch Alternator Identification (P/N 44-9571)
1. S Terminal
2. L Terminal
3. Field (Green) Wire
4. F2 Terminal
5. Capacitor Mounting Screw
6. Capacity
7. + Terminal
8. B+ Positive
9. Regulator/Brush Assembly Mounting Screws
10. Voltage Regulator & Brush Assembly