Battery Charger
Page 5
MN-402-000
TROUBLESHOOTING
SCR Assembly
Test:
Perform the test setup before starting this procedure.
1. The test light should be OFF. If the light is ON then one of
the SCR’s is shorted. Skip ahead to Gate Test.
2. Momentarily touch the resistor to one of the gate terminals.
3. The test light should turn ON and stay ON when the resistor
is removed. The voltmeter should read 0.88 volts (nominal).
If the light does not turn ON then the SCR has failed. Skip
ahead to Gate Test.
4. Disconnect then reconnect the battery and repeat the test
on the other SCR.
Gate Test:
This test should only be performed if it has been determined
that one of the SCR’s have failed.
Perform the following on BOTH SCR’s.
1. Disconnect the 12 volt battery and all test leads.
2. Measure the resistance from the SCR Anode terminal (+)
to the Gate terminal (-).
3. The resistance should be high, around 15 meg Ohms.
4. If the reading is low, then the gate is shorted. If the gate
has shorted on either SCR, then it is likely that the control
board has been damaged and must also be replaced.
Note:
Both SCR’s must be replaced as a set.
Note:
This test passes current through the transformer
and fuse. Confirm both the transformer and fuse
are good before continuing.
Tools required for this test:
12 volt battery, Test light, Volt meter, 300 Ohm resistor.
Test Setup:
1. Remove the charger form the vehicle.
2. Remove the charger cover.
3. Disconnect the Gate wires from both SCR’s.
Note: The other wires are soldered and cannot be removed.
4. Disconnect the control board J1 connector.
5. Connect the 12 volt battery positive to the charger DC
output Black wire.
Connect one lead of the resistor to the 12 volt battery
positive. The resistor should be on a wire long enough to
reach the SCR’s.’
6. Connect the 12 volt battery negative to one of the test light
leads.
7. Connect the other test light lead to the charger DC output
Red wire.
8. Connect a voltmeter to the charger Black and Red output
wires.
Содержание B0-T48-48 Taylor Truck T48
Страница 2: ......
Страница 12: ...Model B 1 00...
Страница 58: ...Maintenance Service and Repair Steering Page 14 Exploded View of Steering Gear...
Страница 73: ...TABLE OF CONTENTS Throttle Linkage Adjustments 2 Magnetic Module 2 Pot Box module 3 Throttle Linkage...
Страница 76: ...TAYLOR DUNN...
Страница 94: ...TAYLOR DUNN...
Страница 102: ...TAYLOR DUNN...
Страница 116: ...TAYLOR DUNN...
Страница 119: ...Sevcon Troubleshooting Page 3 Electrical Troubleshooting Identifying Your Controller...
Страница 138: ...Sevcon Troubleshooting Page 22 Electrical Troubleshooting...
Страница 158: ...Battery Charger Page 20 MN 402 000...
Страница 161: ...Wire Diagrams Wire Diagrams Page 3...
Страница 166: ...Illustrated Parts Parts Page 4 Front Brakes...
Страница 168: ...Illustrated Parts Parts Page 6 Steering Linkage...
Страница 170: ...Illustrated Parts Parts Page 8 Steering Column 1 2 3 4 5 6 7 9 8 12 10 11 13 14...
Страница 172: ...Illustrated Parts Parts Page 10 Steering Gear 9 15 16 10 2 3 14 17 12 11 13 6 8 7 5 1 4...
Страница 174: ...Illustrated Parts Parts Page 12 Front Suspension...
Страница 176: ...Illustrated Parts Parts Page 14 Transmission Gear Case...
Страница 178: ...Illustrated Parts Parts Page 16 Transmission Differential Case...
Страница 182: ...Illustrated Parts Parts Page 20 Rear Brakes Brake Body...
Страница 186: ...Illustrated Parts Parts Page 24 Motor...
Страница 188: ...Illustrated Parts Parts Page 26 Electric Brake 1 2 3 4 5 7 8 9 10 6 11 Automatic Electric Brake Component View...
Страница 190: ...Illustrated Parts Parts Page 28 Master Cylinder 2 3 4 1 5 6 7 8...
Страница 192: ...Illustrated Parts Parts Page 30 Brake Lines...
Страница 194: ...Illustrated Parts Parts Page 32 Brake Linkage parking brake...
Страница 196: ...Illustrated Parts Parts Page 34 Wheels and Tires Ref wheel hub 1 2 3...
Страница 200: ...Illustrated Parts Parts Page 38 Speed Control Panel...
Страница 202: ...Illustrated Parts Parts Page 40 Miscellaneous Frame and Body...
Страница 210: ...Illustrated Parts Parts Page 48 Decals 1 2 4 3 5 6 7...
Страница 212: ...Illustrated Parts Parts Page 50 Strobe Light...
Страница 214: ...Illustrated Parts Parts Page 52 Steel Cab T48 Page 1...
Страница 216: ...Illustrated Parts Parts Page 54 Steel Cab T48 Page 2...
Страница 218: ...Illustrated Parts Parts Page 56 Tops T48...
Страница 220: ...Illustrated Parts Parts Page 58 Doors T48...
Страница 222: ...Illustrated Parts Parts Page 60 Optional Deckboards T48...
Страница 224: ...Illustrated Parts Parts Page 62 Cargo Box...
Страница 226: ...Illustrated Parts Parts Page 64 Stake Sides...
Страница 228: ...Illustrated Parts Parts Page 66 1 2 7 8 3 4 5 5a 9 11 12 13 14 16 10 6 18 17 15 Cab Deck ET 3000...
Страница 230: ...Illustrated Parts Parts Page 68 3 4 5 6 1 2 Door Latch 9 8 7 Cab Components ET 3000...
Страница 234: ...TAYLOR DUNN...