Taylor-Dunn SS5-34 Operation, Troubleshooting Manual page 92

ELECTRICAL TROUBLESHOOTING
Connect a voltmeter across the COLD terminal
of the key switch and battery negative.
Turn the key switch ON.
•
If the voltage is not at battery volts then
the key switch has failed. Stop trouble
shooting here and repair the problem.
When the repair is completed,
completely retest the vehicle before
lowering the drive wheels to the ground.
•
If the voltage is at battery volts but the
previous test at pin #4 in the Accelerator
section failed then check the wire from
the key switch to pin #4 at the accelerator
module. Stop trouble shooting here and
repair the problem. When the repair is
completed, completely retest the vehicle
before lowering the drive wheels to the
ground.
For your reference, shown at the right are the
Forward and Reverse switch wire connections
for a typical control system.
Connect a voltmeter across the HOT terminal of
the KSI side of the F&R switch and battery
negative.
Turn the key switch ON.
•
If the voltage is not at battery volts then
go to the Accelerator sequence.
SECTION 4 Main Sequence
View of the terminals of a
FLUKE 79 SERIES II MULTIMETER
typical Key Switch
OFF V
Hz
KEY SWITCH
V
mV
A
BATTERY MAIN NEGATIVE
KSI Side
Violet/Black
Typical configuration of the
terminals on a Forward and
Reverse Switch as viewed
from the back
The HOT terminal is the Violet/Black
wire on the center terminal
PAGE 14
"COLD, Violet Wires(s)"
"HOT, Red wire(s)"
Forward and Reverse Side
White/Black
Green/Black
Blue/Black
Battery Negative