194 Electrical System
Schematic of LED test lamp. Ensure that the connec-
tions to the K (cathode) lead and A (anode) lead of the LED are as illustrated.
lead of the LED. The K lead is the shorter of the two
leads and is adjacent to the flat on the LED.
Solder the 560 ohm resister to the A (anode)
lead of the LED. Solder a short length of wire to the other lead
of the resistor and to the probe. Drill a hole in the side of the case to accept
the wire attached to the K lead of the LED. Mount the probe in the case. If using a pen
case, push the probe through the lower end of the pen
after removing the refill. Push the lead attached to the K lead of the
LED through the hole made in the side of the case and
solder the alligator clip to the lead.
Mount the LED to the case. If using a pen
case, the LED may be mounted in the plug at the top
of the pen after drilling the plug to accept the LED. Suitably attach the probe to the case using
adhesive or tape.
TO TEST SWITCHES
Disconnect the wires from the switch.
Using a test lamp, test each wire to locate the
power wire. It may be nec essary to turn the ignition
On as the switch may be wired through the ignition
circuit. Disconnect the test lamp and connect a jumper lead between the power wire and the wire
from the other side of the switch.
If the circuit functions, the switch can be consid-
ered faulty and should be renewed. Refer to the
heading Switches and Controls.
TO TEST BULBS
Remove the bulb from the bulb holder.
Connect a jumper lead between the positive
terminal of a battery a nd the base of the bulb.
Connect another jumper lead between the
negative battery terminal and the contact on the base
of the bulb. The bulb should illuminate. If the bulb has two filaments, connect the jumper
lead to the second contact on the base of the bulb. The
second filament should illuminate.
If the bulb fails to illuminate, it should be
renewed with a bulb of the correct voltage and
wattage.
TO TEST CIRCUITS
Turn the circuit switch On.
Using a test lamp, check for power at one of
the circuit connections. A fuse is a good starting point.
If power is available, reconnect the connector and
continue checking towards the motor or bulb end of
the circuit.
If power is not available, continue checking
towards the battery or switch end of the circuit.
6. BATTERY
Special Equipment Required: To Test — Hydrometer
To Charge — Battery charger
TO REMOVE AND INSTAL
(1) Disconnect the negative and positive battery
terminals.
Installed view of the battery.
