P8
8
Westward Operating Instructions and Parts Manual
Westward
®
Battery Chargers
Operation (Continued)
Volts Low, Amps High
Probable Shorted Battery – Replace
Volts Low, Amps Low
Poor Connection or Frozen Battery
Volts High, Amps Low
Battery Cold or Sulfated – Reduce
charge rate and charge longer.
After charging is complete, the
voltmeter should read the full charge
voltage of the battery. This is normally
higher than the rated battery voltage.
TEST SWITCH (1JYU1A AND 1JYU2A
ONLY)
By depressing the Test Switch, the
voltmeter changes into a more precise
mode. This precision is necessary to read
battery charge levels.
BATTERY PERCENT OF CHARGE TEST
(12 VOLT ONLY) 1JYU1A AND 1JYU2A
ONLY
1. With the charger OFF and clamps
properly connected to the battery,
depress the Test Switch and read the
Battery Percent of Charge on the top
left scale of the Test Meter.
2. If the battery has been recently
charged or is in a vehicle that has
been run recently, there is probably a
“surface charge” on the battery. This
will give a falsely high reading on the
Percent of Charge Test. Remove the
“surface charge” by turning on the
vehicle headlights for 3 or more
minutes. Allow the battery to sit for 1
minute. Then re-test the Battery
Percent of Charge.
ALTERNATOR TEST (12 VOLT ONLY)
1JYU1A AND 1JYU2A ONLY
1. With charger OFF and clamps
properly hooked to the battery, start
the engine and while running it at
fast idle, depress the Test Switch.
2. Read the alternator condition on the
Alternator Test scale at the upper
right section of the Test Meter. The
battery should be in a good state of
charge before attempting this test.
3. The three zones of the meter indicate
the following:
OK
–Charging system is
performing properly
LOW
–Loose fan belt, or voltage
regulator and/or alternator
faulty
HIGH
–Faulty voltage regulator or
wiring harness
NOTE:
This type of repair work is rather
specialized. It may require additional
tests on additional instruments for
complete diagnosis.
IMPORTANT:
The charger must be
turned OFF to perform the tests. If
attempting to test with the charger
turned ON, the results will be
meaningless.
TIMER CONTROL
The timer on the front of your charger
allows you to set a time to charge. Turn
the knob clockwise to the time desired.
When setting the timer for times less
than 20 minutes, turn the knob past the
20 minute setting and then turn back to
the time desired. After the set time has
elapsed, the timer shuts off the charger.
Refer to the Charging Time Instructions
on page 5 in this manual to determine
the proper time to set.
Turning the timer knob
counterclockwise to the Hold position
turns the charger on, but the timer will
not return to the OFF position. Use this
position only when you do not want the
charger to turn off automatically.
Maintenance
Do not leave the
battery unattended
for long periods of time when the timer
is in the hold mode, as damage to the
battery may occur.
Disconnect all
power before
attempting to service or remove any
components!
This battery charger will require little
maintenance if properly used. For more
efficient operation, it is advisable to
blow the dust off the louvers, rectifier,
and transformer at least once or twice a
year, depending on amount of use. The
cover is held in place by screws, and is
easily removed for maintenance.
1JYT9A, 1JYU1A, 1JYU2A and 1JYU3A
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