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MAGNETIC CIRCUIT VDROP™ TEST

The Magnetic switch circuit supplies a path for current to the coils of the starter 

solenoid with minimum voltage drop. The Magnetic circuit is indicated by the 

dotted line on the illustration below. The Magnetic circuit test is designed to 

test the voltage drop of this circuit. It has three steps. If it passes the first test 

the whole circuit passes and there is no need to continue. If the first test fails, 

the next two tests are completed to obtain results of each leg and the magnetic 

switch itself. The Magnetic switch is energized by the ignition switch in each test. 

For safety, disconnect the negative cable from the battery.

This is a continuation of the Starting 

System Test, but can also be selected 

from the VDrop Menu by selecting 

>MAG. CIRCUIT then press Enter. 

In the individual test you will be 

asked to disconnect the Magnetic 

circuit from the “S” terminal on the 

starter solenoid as explained on the 

previous page. This is necessary to 

avoid starting the engine during this 

test sequence.

Magnetic Circuit 3-Step Setup

NOTE:

 

ON 12 VOLT SYSTEMS THE SMALL BLACK LEAD CAN BE LEFT 

DISCONNECTED OR CAN BE CONNECTED TO ANY GROUND. ON 24 VOLT SYSTEMS 

THIS LEAD MUST BE CONNECTED TO THE STARTER GROUND.

 CHARGING CABLES

 STR MAIN CABLES

>MAG. CIRCUIT

 LIFTGATE VDROP

Connect the large red clamp (+) 

to the disconnected ring from 

the S-terminal magnetic circuit. 

Connect the large black clamp 

(-) to the starter ground (See 

Illustration)

Connect the small red lead (+) to 

the 'B' terminal (+) of the starter 

solenoid. Attach the small black 

lead (-) to the starter ground (See 

Illustration - small clamp position 1)

Reconnect the negative terminal 

on the battery. Then energize 

the Magnetic Switch for 3-5 

seconds. Note. This can be done 

by a remote starter or by a second 

person turning the ignition.

Wait for results.

If voltage drop is within 

specifications the whole circuit 

passes. This test should be done 

THREE TIMES when rotating contact 

magnetic switches are utilized.

>CONNECT SMALL

 LEADS TO THE

 STARTER SOL/GND

 'Y' TO CONTINUE

>CONNECT LARGE 

 LEADS TO THE 

 S-TERMINAL/GND.

 'Y' TO CONTINUE

>ENERGIZE THE 

 MAG SWITCH FOR

 3-5 SECONDS.

 'N' TO CANCEL

 LOADING

 PLEASE WAIT...

#337 MAG/CIRCUIT

PASSED!

DROP WITHIN SPEC

DROP @80A. 0.65V

MAGNETIC CIRCUIT TEST (Cont.)

Use the + / - key to select the type 

of starter you are testing.

SELECT STARTER TYPE. 

STRAIGHT DRIVE/GEAR 

REDUCTION

'Y' TO CONTINUE

DISCONNECT THE 

S-TERMINAL FROM 

STARTER SOL.

'Y' TO CONTINUE

This is the small wire on the starter 

solenoid that activates the starter

Содержание Remy BCT-200J

Страница 1: ...res the voltage drop of the starting and charging circuit The BCT 200J is automated and menu driven with simple hook up methods for testing the negative and positive legs in one operation Special test...

Страница 2: ...ble Optional PR 15 Infrared printer Optional AC24J carrying case Optional AC 10 PC Interface adapter cord Optional AC 27 Alternator Adapters Optional AC 35 PC download program Weight 4 27 lbs What to...

Страница 3: ...9 Single Split 7 Magnetic Circuit VDrop Test 30 32 Without IMS With IMS 8 Key Circuit VDrop Test 33 36 Without OCP With OCP 9 Liftgate VDrop Tests 37 39 10 Alternator Bench Test 40 45 Maintenance 46 C...

Страница 4: ...gulator setting can cause lead sulfate to gradually build up and crystallize on the plates greatly reducing the battery s capacity and ability to be recharged n Cycling Excessive drain on battery when...

Страница 5: ...and alternator for loose connections loose mounts and frayed or cracked wires Loose Hold downs Corrosion Check for loose belts and auto tensioner Gives the version of the software NOTE This screen is...

Страница 6: ...software applications consult your software manual n Under Column Date Format select General then Finish n After the file is loaded you can delete unwanted rows and format columns as desired The follo...

Страница 7: ...hop for a PM Service NOT when the vehicle is having electrical system issues For a vehicle with a suspected electrical problem use the individual tests starting with the batteries then the cables and...

Страница 8: ...nections before testing the batteries If the batteries or posts are damaged replace the batteries Make sure the batteries are free from dirt cracks and leaks and that the connections are clean and sec...

Страница 9: ...llow the batteries to stabilize for at least 10 minutes after being charged or loaded before running a test 1 Scroll down the main menu to DOWNLOAD Press Y Enter to select Using Auto Meter s optional...

Страница 10: ...the reason for battery bank failure Clean posts and connections are essential when checking each battery Make sure batteries not being tested are disconnected INSPECT BATTERY FOR DIRT LEAKS OR CRACKS...

Страница 11: ...e SETUP From the main menu select SETUP Select the temperature in Fahrenheit or Centigrade If answered YES the above screen will appear at the beginning of the first test for a vehicle Each digit with...

Страница 12: ...f ERROR appears the connections has not been established VOLT METER Select VOLT METER from the main menu and press Y Enter This gives the user a chance to check the voltage from the large clamps and t...

Страница 13: ...00J Press Print You should be within 15 ft of the printer Wait for the screen to clear before moving the BCT 200J It takes a moment to send all the test data The BCT 200J also operates the AC 14 print...

Страница 14: ...is a single or dual system Single has one cable from the alternator output terminal Dual system has two cables attached to the output terminal Every load that the tractor and trailer utilize must be...

Страница 15: ...he silver jaw contains the larger conducting wire that draws the load in each test Jaw insulation is necessary for accurate readings Damaged clamps or loose wires will affect the readings Keep clamps...

Страница 16: ...ck to ground case output adapters recommended CONNECT LARGE LEADS TO THE ALTERNATOR Y TO CONTINUE Check the alternator tag or housing and use the key to select the rated output See picture below ALTER...

Страница 17: ...ition key to the run position Non Remote Sense empty port Non Remote Sense Alternator ALTERNATOR BENCH TESTING Cont TURN MOTOR SWITCH OFF Y TO CONTINUE TURN BATTERY SWITCH OFF N TO CANCEL TURN BENCH P...

Страница 18: ...battery is too weak or if the cables or leads of the bench have too high of a voltage drop then the battery and or cables will need to be serviced before continuing with the alternator test If the ben...

Страница 19: ...d is producing high ripple ALTERNATOR BENCH TESTING Cont ALTERNATOR AND TESTER SHOULD BE HOOKED UP Y TO CONTINUE DOES ALTERNATOR HAVE A REMOTE SENSE N OR Y CONNECT REMOTE SENSE POST TO OUTPUT POST Y T...

Страница 20: ...key to select the rated output See picture below ALTERNATOR BENCH TESTING Cont MAKE SURE THAT THE BELT IS STRAIGHT Y TO SCROLL TIGHTEN THE BELT Y TO SCROLL ATTACH BLACK BENCH LEAD TO GROUND ADAPTER Y...

Страница 21: ...t Bench Test and press Y Enter PRESS Y TO SCROLL THROUGH BENCH SETUP OR TO SKIP Press Y to scroll through the prompts for connecting the alternator to the bench or press the Up key to skip over the pr...

Страница 22: ...at the entered current Reports the drops at the entered current 24 Volt 12 Volt 24 Volt 12 Volt 24 Volt 12 Volt 24 Volt Main Starting Cables Magnetic Circuit Straight Drive Maximum drop at 300 Amps is...

Страница 23: ...S N TO CANCEL Wait for test to complete its testing cycle LIFTGATE VDROP TESTS Cont Then connect small leads to the battery or along the circuit being tested as illustrated in the setup and press Y E...

Страница 24: ...st can be used to test the liftgate charging and motor circuits as well as any other circuit that includes a battery and cables and is designed to operate a load of 20 amps or more Select TRAILER CHAR...

Страница 25: ...e conditions of the cables Both the positive and negative circuit results will be indicated from the single test If the test does not pass correct the connection or replace the cable and run the test...

Страница 26: ...T GROUND KEY SWITCH VDROP TEST Cont OCP A will always be the small black lead A to B tests power at key switch A to C tests power out of keyswitch A to D tests power at the push button A to E tests po...

Страница 27: ...able and run the test again The BCT 200J will automatically resume the test after it is disconnected Just answer Yes when prompted 6 GENERIC VDROP VOLTAGE DROPS AT 250 AMPS 35 POS 29 NEG This example...

Страница 28: ...SCONNECT GROUND 8 KEY SWITCH VDROP TEST Note This is a real time test and the operator must observe and record the data when the key switch is energized S terminal wire must be removed from the soleno...

Страница 29: ...he test after it is disconnected Just answer Yes when prompted 6 GENERIC VDROP VOLTAGE DROPS AT 250 AMPS 18 POS 41 NEG This example is out of spec with a total drop of 59V MAGNETIC CIRCUIT TEST Cont M...

Страница 30: ...E CONNECTED TO ANY GROUND ON 24 VOLT SYSTEMS THIS LEAD MUST BE CONNECTED TO THE STARTER GROUND CHARGING CABLES STR MAIN CABLES MAG CIRCUIT LIFTGATE VDROP Connect the large red clamp to the disconnecte...

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