Tracker LS2 2020, Руководство по ремонту и обслуживанию

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116
Repair and Service Manual
ELECTRICAL
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
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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 posi-
tion. If the meter does not register, replace the switch.
Reconnect the wires.
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 other probe on
the key switch terminal with the blue wire.
(b) Press the accelerator and observe the DVOM. A
reading of less than 2

indicates a good limit switch. A
reading of greater than 2

indicates that the switch ter-
minals should be checked. A reading of infinity a visual
signal (•) indicates that the switch must be replaced. Con-
nect the battery.
8. 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 accelerator
pedal is pressed, replace the solenoid.
TESTING CHARGING CIRCUIT
Tool List Qty.
DVOM.......................................................................... 1
To prevent the possibility of injury
resulting from vehicle inadvertently
starting, the drive belt must be
removed or both rear wheels raised (see procedure
in the SAFETY section.
The charging circuit consists of a starter/generator, volt-
age regulator and battery (Ref. Fig. 1). The solenoid must
be functional in order to start the vehicle, but is not con-
sidered part of the charging circuit.
1. If the battery charge is inadequate (less than 11 VDC),
proceed as follows:
(a) Check the battery voltage and inspect for loose or
corroded terminal posts and connections. Check electro-
lyte level.
b) Check charging circuit component terminals for
proper, clean, tight connections.
c) Check for charging voltage as follows:
1) Raise the vehicle (see procedure in the
SAFETY section) so that both rear wheels are
free to rotate.
2) With the engine off, measure the voltage at the
battery’s terminals by placing the negative (-)
probe on the negative (-) post and the positive
(+) probe on the positive (+) post of the battery.
Note the reading.
3) Attach the DC voltmeter across the regulator’s
red and black leads.
4) Start the engine and accelerate to governed
speed.
5) The meter should read higher than before start-
ing engine. In a reasonable amount of time, the
reading should settle between 14 and 15 volts,
indicating the regulator is functioning properly.
6) If no increase over battery voltage is observed,
there is a malfunction in the charging circuit.
7) If the reading is above 15 volts, check to
assure the wiring harness and generator field
winding (green lead) is not grounded. If it is not,
replace the regulator.
8) If the reading is below 14 volts, disconnect the
regulator’s green field wire from the system
harness. Temporarily connect the green field
wire to ground. If the voltage rises above its
prior reading, replace the regulator.
9) If the above procedures do not correct the
problem, check for faults in the vehicles wiring
harness and/or generator.
Inspection
1. Inspect the commutator for wear or damage.
2. Inspect the brush assembly for wear and damage to
the brush holder insulators. Check the brushes for
length, approximately 11/16" (17 mm) or to the line
marked on the brush and signs of carbonization.
3. Inspect the armature for distortion or broken wires.
4. Inspect the field coil insulators and lead wire.
5. Check the bearings for free rotation and lack of end
play on shaft. Replace if necessary.