Schumacher BT-100 owner manual Starter Motor Test

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STARTER MOTOR TEST

1.Connect clamps to battery posts and do the basic battery test. In addition, note the exact voltage with the load test on. If voltage continues to fall after 10 seconds, this test cannot be preformed.

2.Apply the voltage obtained above to starter test table on the scale plate. In this case, please use the next higher minimum cranking volts for the engine of less than 200 CID. For example, if load voltage is 11.00, use 10.2 for minimum cranking voltage.

LOAD

10.2

10.4

10.6

10.8

11.0

11.2

11.4

VOLTS

 

 

 

 

 

 

 

MIM CRANK

7.7

8.2

8.7

9.2

9.7

10.2

10.6

VOLTS

 

 

 

 

 

 

 

 

STARTER

 

TEST

 

 

 

 

 

 

 

 

 

 

 

3.Disable the ignition system without starting, crank the engine and note the voltage.

4.If cranking voltage of Step 3 is below the minimum cranking voltage in starter test table, the starter current draw is excessive. If starter cranks slowly, check for high resistance or poor connections.

3

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Contents Customer Returns Box 1025 E. Thompson Avenue Hoopeston, IL Questions? Call Customer ServicePage Conventional & Maintenance-Free Types Basic Battery Load TestCold Temperature Effects Temperature CompensationLoad Test Battery Condition Battery AnalysisStarter Motor Test Charging System Test Limited Warranty