Taylor-Dunn B0-248-TT Operation, T Roubleshooting And Replacement Parts Manual page 111

Table of Contents
SYMPTOMS:.....................................2
READ THIS FIRST ............................3
Test Equipment Required ........................................................ 3
IMPORTANT NOTES and INSTRUCTIONS ...................... 3
START HERE: ........................................................................ 4
Definitions: .............................................................................. 4
Controller Small Signal Input ................................................. 6
Forward/Reverse Switch, Model ET -150-74 (72 volt system) 6
Forward/Reverse Switch (48 Volt System) ............................. 7
Throttle Module (using test harness): ..................................... 8
Throttle Module (using analyser): .......................................... 9
Motor Windings ....................................................................... 10
Contactors ................................................................................ 11
ISO Contactor .......................................................................... 11
Contactor Negative Return ..................................................... 12
UNUSUAL SYMPTOM
TROUBLESHOOTING GUIDE ....13
PLUGGING DIODE .............................................................. 14
FREEWHEEL DIODE ........................................................... 14
ISO ........................................................................................... 15
Contactors ................................................................................ 15
REV C