Table of Contents
Advertisement
ELECTRICAL
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
B
- TEST LEAD
+ TEST LEAD
Fig. 4 Resistance Between C- B and C - A
TESTING THE STARTING CIRCUIT
To decrease the risk of injury result-
ing from vehicle inadvertently start-
ing, disconnect battery for steps 1
through 8 (see SAFETY section).
Tool List
DVOM.......................................................................... 1
If the engine does not start, proceed as follows:
1.
Check the battery for a voltage reading which should
be between 12.2 and 12.5 volts. Inspect for loose or
dirty battery post connections.
2.
Check for a blown in line fuse and replace if neces-
sary.
3.
Check for loose wires at all terminal connections.
4.
Check the complete electrical system for correct cir-
cuitry (Ref. Fig. 1).
5.
Inspect for worn insulation or bare wires touching the
frame. Bare wires will cause a short circuit.
6.
Check for continuity through the key switch. Set the
DVOM to the ohms (scale. Detach wires. Place
positive (+) probe on one terminal and negative (-)
probe on the other terminal. The reading on the
meter should be "0" with the switch key in the ON
position and a visual signal () with the switch in the
OFF position. If the meter does not register, replace
the switch. Reconnect the wires.
136
C
B
A
7.
Turn the key switch to OFF.
a. Place one probe of the DVOM (set to ohms
scale) on the red wire at the solenoid. Place the
C to B
other probe on the key switch terminal with the
blue wire.
b. Press the accelerator and observe the DVOM. A
C to A
reading of less than 2 indicates a good limit
switch. A reading of greater than 2 indicates
that the switch terminals should be checked. A
reading of infinity, a visual signal (•), indicates
that the switch must be replaced. Connect the
battery.
3.
Check the starting solenoid operation. Turn the key
switch to the ON position.
a. Place the DVOM (set to the appropriate DC volts
scale) negative (-) probe on terminal A of the
solenoid. Place the positive (+) probe on terminal
B. The DVOM should indicate approximately 12
V.
b. Press the accelerator pedal. The DVOM will indi-
cate "0" voltage if the solenoid contacts are
closed.
c. If "0" voltage is not indicated while the accelera-
tor pedal is pressed, replace the solenoid.
TESTING THE CHARGING CIRCUIT
Tool List
DVOM ..........................................................................1
Qty.
or entire vehicle must be lifted (see procedure in
SAFETY section).
The charging circuit consists of a starter/generator, volt-
age regulator and battery. The solenoid must be func-
tional in order to start the vehicle, but is not considered
part of the charging circuit.
If the battery charge is inadequate (less than 11 VDC),
proceed as follows:
1.
Check the battery voltage and inspect for loose or
corroded terminal posts and connections. Check
electrolyte level.
2.
Check charging circuit component terminals for
proper, clean, tight connections.
3.
Check for charging voltage as follows:
a. Raise the vehicle (see procedure in SAFETY
section) so that both rear wheels are free to
rotate.
b. With the engine off, measure the voltage at the
battery's terminals by placing the negative (-)
probe on the negative (-) post and the positive
Repair and Service Manual
To decrease the risk of injury result-
ing from vehicle inadvertently start-
ing, the drive belt must be removed
Qty.
653045
Advertisement
Table of Contents
