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Schumacher PST-1000 Owner's Manual
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Schumacher PST-1000 Owner's Manual

Schumacher PST-1000 Owner's Manual

Carbon pile charging system analyzer
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OWNER'S MANUAL
Model: PST-1000
Carbon Pile Charging System Analyzer
For 6 and 12 Volt Batteries
Questions? Call Customer Service
1-800-621-5485
ELECTRIC CORPORATION
MT. PROSPECT, IL 60056
Send Warranty Product Repairs To:
Customer Returns
P.O. Box 280
1025 E. Thompson Avenue
Hoopeston, IL 60942-0280
00-99-000443/1004

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Summary of Contents for Schumacher PST-1000

  • Page 1 OWNER’S MANUAL Model: PST-1000 Carbon Pile Charging System Analyzer For 6 and 12 Volt Batteries ELECTRIC CORPORATION MT. PROSPECT, IL 60056 Send Warranty Product Repairs To: Customer Returns P.O. Box 280 1025 E. Thompson Avenue Hoopeston, IL 60942-0280 Questions? Call Customer Service...
  • Page 2 PST-1000 IMPORTANT OPERATING & SAFETY NOTES READ BEFORE PROCEEDING WITH TESTS Always work in a well ventilated area. Never start a vehicle’s engine in an enclosed area. Never smoke or allow any other open flame to come within 25 feet of the vehicle being tested.
  • Page 3 EXTERNAL VOLTS LEADS (1 mg ohms) These leads may be used for measuring any DC voltage on a vehicle when the test selector switch is placed in External posi- tion. The voltmeter circuit is isolated and has an automatic polar- ity indication.
  • Page 4 readings are taken, the battery should be charged five minutes to stimulate mixing. (Refer to battery manufacturer’s instructions regarding removal of vent caps while charging battery). ELECTROLYTE CAUTION Battery electrolyte is SULFURIC ACID. It can eat holes in clothes and skin. Flush spills with water. STATE OF CHARGE CHECK By Specific Gravity (open vent battery only) Sample, measure and return the electrolyte from each cell with a...

  • Page 5: Diagnostic Test Procedure

    Switch Amps probe to 1000A position, Adjust Amp Meter to read zero using the Zero Amps knob. Be sure the Amp Probe jaws are clean and fully closed. (If Amps probe battery is low, replace it with new one first.) Place the Amp Probe around either analyzer Battery Cable.
  • Page 6 VOLTAGE AMPS LIKELY CAUSE Below 9.6 High Bad starter or a very hot or cold engine Below 9.6 Bad Battery or Loose Battery Terminals Above 9.6 Bad Connections at Starter or Solenoid INSULATED-POS CIRCUIT TEST Set the Volts Selector to “External” (±199.9V. scale) Connect Volt test leads as shows in the following (Figure 3).
  • Page 7 ALTERNATOR SYSTEM TESTS The following test procedures will determine if there is a problem in the diode stator, voltage regulator, electrical load requirements, or in the alternator amperage output. The tests can pinpoint prob- lems to the wires and connection between the charging output terminal, the regulator, the field, and the battery.
  • Page 8 Causes of high voltage drops can be from LOOSE OR COR- RODED CONNECTIONS at the output terminal of the alternator, the car’s ammeter, battery terminal connection on the starter so- lenoid, battery cable connections, faulty wiring from alternator to regulator, to ammeter, to starter solenoid, or between the alter- nator and the engine.
  • Page 9 Otherwise if the output is okay, the problem must be in the regulator or its wiring. CAPABILITIES FOR 24V SYSTEM The PST-1000 is capable of performing Battery Load tests, Starter Draw tests, and Alternator Current Output tests on 24 volt electri- cal circuit.

  • Page 10: Test Procedure

    If the Diode/Stator lamp stayed on during the output test, replace the alternator. If the amperage abruptly decreased during the test, check for a loose belt. If output was less than 90% of rating, see PST-1000 manual for output resistance test procedures. + 24V CRANKING...

  • Page 11: Troubleshooting

    Series Parallel Switch Alternator Output Test TROUBLESHOOTING Procedures for troubleshooting cables and connections in the charging and starting circuits are included in the PST-1000 manual. Always refer to the engine manufacturer’s instructions before performing any tests with which you may be unfamiliar.

  • Page 12: Limited Warranty

    NOT TRANSFERABLE. Schumacher Electric Corporation warrants this battery tester for one year from date of purchase at retail against defective material or workmanship. If such should occur, the unit will be repaired or replaced at the option of the manufacturer. It is the obligation of the purchaser to forward the unit together with the original sales receipt, transportation and/or mailing charges prepaid to the manufac- turer or its authorized representative.