Westward 1JYT9A User manual

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described.
Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or
property damage! Retain instructions for future reference.
Description
Westward battery chargers are mobile oor units designed to deliver maximum
starting power. They charge up to 60 amperes (maximum) on 6 or 12 volt batteries
(1JYT9A max 40 amps).
Chargers are equipped with a timer control, charging voltage and rate selector,
ammeter and automatic reset circuit breaker.
Important Safety
Instructions
READ THESE FIRST
1. SAVE THESE INSTRUCTIONS.
This manual contains important
safety and operating instructions.
2. Do not expose charger to rain or
snow.
3. Use of an attachment not
recommended or sold by the
manufacturer may result in a risk of
re, electric shock, or injury to
persons.
4. To reduce risk of damage to electric
plug and cord, pull by plug rather
than cord when disconnecting
charger.
5. An extension cord should not be
used unless absolutely necessary.
Form 5S4079
Printed in Taiwan
05/10 JL06
Figure 1
Operating Instructions and Parts Manual 1JYT9A, 1JYU1A, 1JYU2A and 1JYU3A
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Primary AC
input@ rated
12 V output
Power Supply
Requirements
Max Continuos
Charge Output
Start Output
@7.2V
Medium charge
output
Motorcycle or
nishing charging
Average
Charging Time
Primary AC
input@start
120 VAC,
60 Hz
8.5 Amps
@120V
60 Hz
40 Amps
@6/12V
200 Amps
@7.2V
130 Amps
@6V
20 Amps
@12V
2 Amps
@12V
3/4 to 1/2 hr
29 Amps
120 VAC,
60 Hz
12.0 Amps
@120V
60 Hz
60 Amps
@6/12V
250 Amps
@7.2V
185 Amps
@6V
40 Amps
@12V
2 Amps
@12V
1/2 to 1 hr
43 Amps
120 VAC,
60 Hz
12.0 Amps
@120V
60 Hz
60 Amps
@6/12V
250 Amps
@7.2V
185 Amps
@6V
0-60 Amps
@6/12V
0-3 Amps
@6/12V
1/2 to 1 hr
58 Amps
120 VAC,
60 Hz
12.0 Amps
@120V
60 Hz
60 Amps
@6/12V
30 Amps
@24V
225 Amps
@7.2V
160 Amps
@6V
40 Amps
@12V
Not
Applicable
1/2 to 1 hr
35 Amps
Specications 1JYT9A 1JYU1A 1JYU2A 1JYU3A

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Westward Operating Instructions and Parts Manual
Westward ®Battery Chargers
Important Safety Instructions
(Continued)
Use of improper extension cord could
result in a risk of re and electric
shock.
If extension cord must be used, make
sure that the extension cord plug pins
are the same number, size, and shape
as the charger plug, that the
extension cord is properly wired and
in good electrical condition, and that
the wire size is large enough for the
length of cord as specied in the
following chart:
Length of AWG size
cord in feet of cord
25 16
50 12
100 10
150 8
6. Do not operate charger with
damaged cord or plug. Replace the
cord or plug immediately.
7. Do not operate charger if it has
received a sharp blow, been dropped,
or otherwise damaged in any way;
take it to a qualied service person.
8. Do not disassemble charger; take it to
a qualied service person when
service or repair is required. Incorrect
reassembly may result in a risk of
electric shock or re.
9. To reduce risk of electric shock,
unplug charger from outlet before
attempting any maintenance or
cleaning. Turning o controls will not
reduce this risk.
RISK OF EXPLOSIVE
GASES. Working in
vicinity of a lead acid battery is
dangerous. Batteries generate
explosive gases during normal battery
operation. For this reason, it is of
utmost importance that each time
before using your charger, you read
this and follow the instructions exactly.
To reduce risk of battery explosion,
follow these instructions and those
published by battery manufacturer and
manufacturer of any equipment you
intend to use in vicinity of battery.
Review cautionary markings on these
products and in engine compartment.
PERSONAL PRECAUTIONS
1. Someone should be within range of
your voice or close enough to come
to your aid when you work near a
lead acid battery.
2. Have plenty of fresh water and soap
nearby in case battery acid contacts
skin, clothing, or eyes.
3. Wear complete eye protection and
clothing protection. Avoid touching
eyes while working near battery.
4. If battery acid contacts skin or
clothing, wash immediately with soap
and water. If acid enters eye,
immediately ush eye with running
cold water for at least 10 minutes and
get medical attention immediately.
5. NEVER smoke or allow a spark or
ame in vicinity of battery or engine.
6. Be extra cautious to reduce risk of
dropping a metal tool onto battery. It
might spark or short-circuit battery or
other electrical part that may cause
explosion.
7. Remove personal metal items such as
rings, bracelets, necklaces, and
watches when working with a lead-
acid battery. A lead-acid battery can
produce a short-circuit current high
enough to weld a ring or the like to
metal, causing a severe burn.
8. Use charger for charging LEAD-ACID
battery only. It is not intended to
supply power to a low voltage
electrical system other than in a
starter-motor application. Do not use
battery charger for charging dry-cell
batteries that are commonly used
with home appliances. These
batteries may burst and cause injury
to persons and damage to property.
9. NEVER charge a frozen battery.
PREPARING TO CHARGE BATTERY
1. If necessary to remove battery from
vehicle to charge, always remove
grounded terminal from battery rst.
Make sure all accessories in the
vehicle are o, so as not to cause an
arc.
2. Be sure area around battery is well
ventilated while battery is being
charged. Gas can be forcefully blown
away by using a piece of cardboard
or other nonmetallic material as a
fan.
3. Clean battery terminals. Be careful to
keep corrosion from coming in
contact with eyes.
4. Add distilled water in each cell until
battery acid reaches level specied by
battery manufacturer. This helps
purge excessive gas from cells. Do not
overll. For a battery without cell
caps, carefully follow manufacturer’s
recharging instructions.
1JYT9A, 1JYU1A, 1JYU2A and 1JYU3A

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Models 1JYT9A, 1JYU1A, 1JYU2A and 1JYU3A
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Westward Operating Instructions and Parts Manual
Important Safety Instructions
(Continued)
5. Study all battery manufacturer’s spe-
cic precautions such as removing or
not removing cell caps while charging
and recommended rates of charge.
6. Determine voltage of battery by
referring to car owner’s manual and
make sure that output voltage
selector switch is set at correct
voltage.
LOCATING THE CHARGER
1. Locate charger as far away from
battery as DC cables permit.
2. Never place charger directly above
battery being charged; gases from
battery will corrode and damage
charger.
3. Never allow battery acid to drip on
charger when reading gravity or
lling battery.
4. Do not operate charger in a closed
area or restrict ventilation in any way.
5. Do not set a battery on top of
charger.
GROUNDING AND AC POWER CORD
CONNECTIONS
Charger should be grounded to reduce
risk of electric shock. Charger is
equipped with an electric cord having
an equipment-grounding conductor
and grounding plug. The plug must be
plugged into an outlet that is properly
installed and grounded in accordance
with all local codes and ordinances.
Never alter AC cord
or plug provided. If it
will not t outlet, have proper outlet
installed by a qualied electrician.
Improper connection can result in risk
of an electric shock.
Connect and
disconnect DC
output clips only after setting any
switches with an OFF position to OFF
and removing AC cord from electric
outlet. Never allow clips to touch each
other.
BATTERY CHARGER CONNECTION
PRECAUTIONS
1. When hooking up charger, attach
one clip to battery and the other to a
point away from battery (see
“Charging a Battery Installed in
Vehicle”, and “Charging a Battery
Outside the Vehicle”). Do not hook
up charger until reading the entire
manual. To reduce explosion risk,
never connect both clips directly to
the battery. When making each
connection, twist or rock clip back
and forth several times to make a
good connection and to reduce the
risk of a clip slipping o and creating
a spark. Do not twist or rock clip on
the battery after the second clip
connection is made.
CHARGING A BATTERY INSTALLED IN
VEHICLE
A marine (boat)
battery must be
removed and charged on shore. To
charge it on board requires equipment
specially designed for marine use.
A spark near
battery may cause
battery explosion. To reduce risk of a
spark near battery:
1. Position AC and DC cords to reduce
risk of damage by hood, door, or
moving engine part.
2. Stay clear of fan blades, belts, pulleys,
and other parts that can cause injury
to persons.
3. Check polarity of battery posts.
POSITIVE (POS, P, +) battery post
usually has larger diameter than
NEGATIVE (NEG, N, -) post.
4. Determine which post of battery is
grounded (connected) to the chassis.
If the negative post is grounded to
the chassis (as in most vehicles), see
Figure 2 and instruction “5a”. If the
positive post is grounded to the chas-
sis, see Figure 3 and instruction “5b”.
Negative to
Chassis Ground
Positive to Chassis
Ground
Positive
Negative
Figure 2
Figure 3

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Westward Operating Instructions and Parts Manual
Westward ®Battery Chargers
1JYT9A, 1JYU1A, 1JYU2A and 1JYU3A
Important Safety Instructions
(Continued)
5. a. For NEGATIVE-GROUNDED vehicle,
connect POSITIVE (red) clip from the
battery charger to the POSITIVE (POS,
P, +) ungrounded post of the battery.
b. For POSITIVE-GROUNDED vehicle,
connect the NEGATIVE (black) clip
from the battery charger to the
NEGATIVE (NEG, N, -) ungrounded
post of the battery.
6. Connect the remaining battery
charger clip to the vehicle chassis or
engine block, as far away from the
battery as possible. Do not connect
the clip to carburetor, fuel lines, or
sheet-metal body parts. Connect to a
heavy-gauge metal part of the frame
or engine block.
7. When disconnecting charger, turn all
switches with an OFF position to OFF,
disconnect AC cord, remove clip from
vehicle chassis, and then remove clip
from battery terminal.
CHARGING A BATTERY OUTSIDE THE
VEHICLE
A spark near the
battery may cause
battery explosion. To reduce risk of a
spark near battery:
1. Check polarity of battery posts.
POSITIVE (POS, P, +) battery post
usually has a larger diameter than
NEGATIVE (NEG, N, -) post.
2. Attach a cable (not provided) to the
NEGATIVE (NEG, N, -) battery post.
This cable must be a minimum of 24”
long, and of a wire gauge that is no
lighter than the wire gauge of the
charger’s output cables (battery
cables and booster cables work well)
(See Figure 4).
3. Connect POSITIVE (red) charger clip to
POSITIVE (POS, P, +) post of battery.
4. Position yourself and the free end of
the cable (installed in Step #2) as FAR
away from the battery as possible.
FACING AWAY FROM THE BATTERY,
connect the NEGATIVE (black) charger
clip to the free end of the cable.
5. When disconnecting charger, always
do so in reverse sequence of
connecting procedure and break rst
connection while as far away from
battery as practical.
The charger must
be fully assembled
before operating! The wheels and foot
must be installed to provide proper
clearance for ventilation. Failure to
provide clearance may result in severe
overheating and may cause damage to
the charger and the surrounding area.
Assembly
1. Assemble the charger according to
the following instructions and Figures
5 and 6.
2. Carefully, remove the charger and
parts bag from carton.
3. Stand charger upright and rotate
handle upward aligning mounting
holes on handle to holes on cabinet.
Secure with self-tapping screws
and tighten all handle screws
(see Figure 5).
4. Remove clamp holders from
hardware bag. Snap the two pieces
together onto the handle and secure
with 2 machine screws (see Figure 6).
5. Assembly is now complete.
Cable
from
Charger Positive
Booster
Cable
Negative
Cable
from
Charger
Figure 4
Tighten down
Screws to
Cabinet
Figure 5 – Install Handle
Figure 6 – Install Clamp Holder

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Models 1JYT9A, 1JYU1A, 1JYU2A and 1JYU3A
Westward Operating Instructions and Parts Manual
5
CHARGING TIME INSTRUCTIONS
1. Determine battery percent of charge
(or specic gravity) with hydrometer
or electronic tester.
2. Note specic gravity or percent of
charge on the following chart. Use
column nearest the Ammeter reading
observed.
3. Charge battery for the time indicated
on the chart. A more precise method
of determining length of charge time
requires the use of the following
formulas, the reserve Capacity or
Ampere Hour rating of the battery,
and the percent of charge needed to
bring the battery to full charge.
4. If the only battery rating known is
Reserve Capacity, you must rst
convert it to Ampere Hours using the
following formula:
Example: Reserve Capacity of
Battery = 60 Minutes
5. With the battery Ampere Hour rating
and the percent of charge needed to
bring the battery to full charge, use
the following formula to determine
length of charge time of battery
selected on charger:
NOTE: Express the percent of charge
needed as a decimal (25% = .25). Amp
output for charge rate settings: 12V
Low = 2 Amps, 12V Medium = 40 Amps,
6 or 12V High = 60 Amps.
Percent of charge needed = 25%
or .25.
6. Plug charger supply cord into 120V,
60 Hz, outlet, set charging rate
selector for ammeter reading closest
to chart column used, timer will shut
charger OFF when charging cycle is
complete.
CHARGER CONTROLS
MODELS 1JYT9A & 1JYU1A
Refer To Figure 7
The switch on the front of your charger
is used to select the voltage and rate of
charging. Listed below are the settings
and typical uses for each. (Clockwise
from top):
Hydrom-
eter
Reading
(Battery
Specic
Gravity)
Battery
Tester
Reading
(Percent
Charge)
6 Volt
Battery
Charging
Time
(Minutes)
12 Volt
Battery
Charging
Time
(Minutes)
Ammeter Reading
Full Charge Full Charge
1.265
1.225
1.190
1.155
1.120
100%
75%
50%
25%
0%
27
55
85
110
60
15
35
50
65
20
45
65
85
400
800
1200
1600
60 40 20
=+ 15.5 45.5 Ampere
Amp
hour
Reserve
size of
Battery
=Capacity (min)
2+15.5
6/12 V
START
12 V
HIGH 12 V
MEDIUM
12 V
LOW
6 V
HIGH
OFF 6/12 V
START
12 V
HIGH 12 V
MEDIUM
12 V
LOW
6 V
HIGH
OFF
MINIMUM START
24 V
HIGH
12 V
HIGH START OFF
12 V
MEDIUM
6 V
HIGH START
OFF
1JYT9A
Figure 7
1JYU1A 1JYU2A 1JYU3A
Operation
60
hour
2
Amp
Hour
Rating
Hours
To
Charge
x% of Charge
Needed
Amp Setting
x1.25 =
=
.25 x 45.5
10 x 1.25 1.42 Hours
To Charge
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