Electrical Troubleshooting
Section 4
Page 12
TEST 3.5
Disconnect the batteries and remove wires from the B-,
F1, and F2 terminals on the controller.
Using the diode test function on your meter, connect the
positive lead to the B- terminal on the controller.
Connect the negative lead to the F1 terminal on the
controller.
The test should show the presence of a diode
(approx 0.5v).
If the test is good, then skip ahead to test #3.6.
If the test is open or shorted then one or both
directional FET’s are shorted and the controller
must be replaced.
TEST 3.6
Disconnect the batteries and remove wires from the B-, F1, and F2 terminals on the controller.
Using the diode test function on your meter, connect the positive lead to the B- terminal on the
controller.
Connect the negative lead to the F2 terminal on the controller.
The test should show the presence of a diode (approx 0.5v). If the test is open or shorted
then one or both directional FET’s are shorted and the controller must be replaced.
After any repairs are made, completely retest the vehicle before
lowering the drive wheels to the ground. Failure to retest the vehicle
could result in unexpected movement of the vehicle resulting in injury
or property damage.
STOP
Stop, do not continue. Reaching this point indicates an unanticipated failure or an error
was made during testing. Confirm all previous tests were performed correctly and contact
your Taylor-Dunn
®
represetative for assistatnce.
This troubleshooting guide is written in sequential order. All tests
must be performed in the order that they are written. Starting in the
middle or skipping sections when not instructed to do so may lead to
invalid test results.
Summary of Contents for B0-T48-48 Taylor Truck T48
Page 2: ......
Page 4: ......
Page 10: ......
Page 11: ...INTRODUCTION Operator and Maintenance Manual...
Page 16: ...INTRODUCTION PAGE vi MB T48 01...
Page 17: ...SECTION 1 Vehicle Description and Specifications...
Page 23: ...SECTION 2 Safety Rules and Operational Information...
Page 37: ...SECTION 3 Maintenance and Service Procedures...
Page 43: ...SECTION 3 PAGE 7 MB T48 01 Hydraulic Disc Brakes...
Page 52: ...SECTION 3 PAGE 16 MB T48 01 PARKING BRAKE...
Page 54: ...SECTION 3 PAGE 18 MB T48 01 FRONT AXLE AND YOKES...
Page 70: ...SECTION 3 PAGE 34 MB T48 01...
Page 71: ...SECTION 3 PAGE 35 MB T48 01 DRIVE SERVICE...
Page 87: ...SECTION 3 PAGE 51 MB T48 01 SPEED CONTROLLER...
Page 89: ...SECTION 3 PAGE 53 MB T48 01 DRIVE MOTOR...
Page 97: ...SECTION 3 PAGE 61 MB T48 01 BATTERY...
Page 102: ...SECTION 3 PAGE 66 MB T48 01...
Page 150: ...Electrical Troubleshooting Section 4 Page 37...
Page 154: ...SECTION 5 PAGE 4 MB T48 01 1 2 3 4 STEERING SLEEVE ASSEMBLY 5 1 5...
Page 156: ...SECTION 5 PAGE 6 MB T48 01 FRONT SUSPENSION 1 5 6 3 4 2 5...
Page 158: ...SECTION 5 PAGE 8 MB T48 01 1 2 3 4 DRAG LINK 2 5 1 5...
Page 160: ...SECTION 5 PAGE 10 MB T48 01 STEERING GEAR 1 2 3 4 5 6 11 12 13 15 17 16 14 10 9 8 7...
Page 162: ...SECTION 5 PAGE 12 MB T48 01 STEERING COLUMN ASSEMBLY 1 2 3 4 5 6 7 9 8 12 10 11 13 14...
Page 164: ...SECTION 5 PAGE 14 MB T48 01 MASTER CYLINDER BRAKE LINE HARDWARE AND FRONT BRAKE ASSSEMBLY...
Page 166: ...SECTION 5 PAGE 16 MB T48 01 MASTER CYLINDER 2 3 4 1 5 6 7 8...
Page 168: ...SECTION 5 PAGE 18 MB T48 01 HYDRAULIC DISC BRAKES 1 2 8 6 5 4 3 2 1 1 1 1 3 7 1 0 9 14 1 5 1 6...
Page 170: ...SECTION 5 PAGE 20 MB T48 01 PARK BRAKE LINKAGE 9 8 6 1 1 7 1 2 3 1 1 1 0 4 5...
Page 172: ...SECTION 5 PAGE 22 MB T48 01 1 0 9 8 1 1 7 6 3 2 1 6 4 5 MOTOR...
Page 178: ...SECTION 5 PAGE 28 MB T48 01 CONTROL PANEL 1 2 4 5 6 7 3 8...
Page 180: ...SECTION 5 PAGE 30 MB T48 01 1 2 4 6 8 ELECTRICAL COMPONENTS TYPICAL 10 3 5 9 7 11...
Page 186: ...SECTION 5 PAGE 36 MB T48 01 ACCELERATOR MODULE 1 8 2 3 4 5 6 7...
Page 196: ...SECTION 5 PAGE 46 MB T48 01 1 2 4 3 5 6 DECALS 7...
Page 198: ...SECTION 5 PAGE 48 MB T48 01 HITCH OPTIONS...
Page 200: ...SECTION 5 PAGE 50 MB T48 01...
Page 201: ...SECTION 5A Illustrated Parts List Taylor Truck...
Page 202: ...SECTION 5A PAGE 2 MB T48 01 STANDARD PARTS...
Page 204: ...SECTION 5A PAGE 4 MB T48 01 OPTIONAL PARTS...
Page 206: ...SECTION 5A PAGE 6 MB T48 01 OPTIONAL PARTS...
Page 208: ...SECTION 5A PAGE 8 MB T48 01 OPTIONAL PARTS...
Page 210: ...SECTION 5A PAGE 10 MB T48 01 TOP COVER OPTION PARTS...
Page 212: ...SECTION 5A PAGE 12 MB T48 01 DOOR OPTIONS...
Page 214: ...SECTION 5A PAGE 14 MB T48 01 DECKBOARD OPTIONS...
Page 216: ...SECTION 5A PAGE 16 MB T48 01 BOX WITH DOORS OPTIONS...
Page 218: ...SECTION 5A PAGE 18 MB T48 01 STAKE SIDE OPTIONS...
Page 220: ...SECTION 5A PAGE 20 MB T48 01...
Page 221: ...SECTION 5B Illustrated Parts List ET 3000...
Page 222: ...SECTION 5B PAGE 2 MB T48 01 1 2 7 8 3 4 5 5a 9 11 12 13 14 16 10 STANDARD PARTS 6 18 17 15...
Page 224: ...SECTION 5B PAGE 4 MB T48 01 STANDARD PARTS 3 4 5 6 1 2 Door Latch 9 8 7...
Page 230: ...SECTION 5B PAGE 10 MB T48 01 BOX WITH DOORS OPTIONS...
Page 232: ...SECTION 5B PAGE 12 MB T48 01...
Page 233: ...APPENDIX A Special Tools...
Page 235: ...APPENDIX B...
Page 239: ......