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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 fire 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 specified 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 qualified service person.

8. Do not disassemble charger; take it to

a qualified service person when
service or repair is required. Incorrect
reassembly may result in a risk of
electric shock or fire.

9. To reduce risk of electric shock,

unplug charger from outlet before
attempting any maintenance or
cleaning. Turning off 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 flush eye with running
cold water for at least 10 minutes and
get medical attention immediately.

5. NEVER smoke or allow a spark or

flame 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 first.
Make sure all accessories in the
vehicle are off, 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 specified by
battery manufacturer. This helps
purge excessive gas from cells. Do not
overfill. For a battery without cell
caps, carefully follow manufacturer’s
recharging instructions.

1JYT9A, 1JYU1A, 1JYU2A and 1JYU3A

Summary of Contents for 1JYT9A

Page 1: ...k of fire 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 E N G L I S H Primary AC input rated 12 V output Power ...

Page 2: ...ave 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 flush eye with running cold water for at least 10 minutes and get medical attention immediat...

Page 3: ...hes 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 e...

Page 4: ...o 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 W...

Page 5: ...ge 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 ...

Page 6: ...er as the battery requires until the battery is fully charged The charger will shut off when the battery is at full charge If left connected the charger will continue to monitor the battery and will automatically begin charging again if the battery drops below full charge To charge a battery in automatic mode return the timer to automatic no time set into the timer THE RATE SELECTOR will no longer...

Page 7: ... after 5 10 minutes the needle has not moved unplug the charger and discontinue charging NOTE If the needle drops to zero the internal circuit breaker has tripped and will reset automatically after 3 4 minutes Use a voltmeter and read the voltage of the battery If the voltage is under 11 5 volts the battery is probably defective and should be serviced or replaced If the voltage reads over 11 5 vol...

Page 8: ...tate 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 c...

Page 9: ...N G L I S H Wiring Diagrams Figure 11 Model 1JYT9A Yellow Black Orange Red Blue Ammeter Black Timer Rate Selector Black Fan Rectifier Circuit Breaker Positive Negative Cable Assembly Black Cable Assembly Red Power Cord White Green Black Center Tap Thermal Breaker Transformer Black Black Switch ...

Page 10: ...agrams Continued Figure 12 Model 1JYU1A Yellow Black Orange Red Blue Ammeter Timer Black Test Switch Voltmeter w circuit board Black White Blue Rate Selector Black Fan Rectifier Circuit Breaker Positive Negative Cable Assembly Black Cable Assembly Red Power Cord White Green Black Center Tap Thermal Breaker Transformer Black Black Switch ...

Page 11: ...A Yellow Black Black Red P C B Blue Blue Ammeter Timer Red Brown Violet White Green Test Switch Voltmeter White White Selector Switch Black White Orange Fan Secondary Secondary Lead Lead Rectifier Circuit Breaker Positive Negative Cable Assembly Black Cable Assembly Red Power Cord White Black Green Ground Center Tap Thermal Breaker Transformer Black Black ...

Page 12: ...S H Yellow Black Red Blue Ammeter Timer Black Black Black Voltmeter w circuit board White Rate Selector Fan Rectifier Circuit Breaker Positive Negative Cable Assembly Black Cable Assembly Red Power Cord White Green Black Center Tap Thermal Breaker Transformer Black Switch Wiring Diagrams Continued Figure 14 Model 1JYU3A ...

Page 13: ...tive selector switch Defective timer switch Defective timer switch 1 Plug power cord into outlet 2 Inspect prongs of plug and straighten if necessary Replace outlet receptacle if defective 3 Check supply fuses or circuit breaker If necessary replace or reset 4 Check electrical continuity of cord and plug Replace if defective 5 Inspect all internal electrical connections Reconnect or tighten any th...

Page 14: ...nd Parts Manual Please provide following information Address parts correspondence to Grainger Parts Operations P O Box 3074 1657 Shermer Road Northbrock IL 60065 3074 U S A Model number Serial number if any Part description and number as shown in parts list 1JYT9A 1JYU1A 1JYU2A and 1JYU3A 12 13 10 11 14 19 18 17 15 16 21 20 23 22 1 7 6 5 4 3 2 9 8 E N G L I S H ...

Page 15: ... o n K l o r t n o C 6 1 1 G 6 6 6 2 610 4 2 T T Control Knob Rate Selector 6 1 17 Rotary Switch for 1JYT9A 1JYU1A 1JYU3A TT246408666G 1 1 G 6 6 6 4 0 8 5 6 8 T T y l n O 2A U Y J 1 r o f y l b m e s s A B C P 7 1 1 G 6 6 6 2 7 3 6 4 2 T T y l n O 2A U Y J 1 r o f r e m i T 8 1 1 G 6 6 6 3 7 2 6 4 2 T T 3A U Y J 1 1A U Y J 9A T Y J 1 r o f r e m i T 8 1 1 G 6 6 6 7 3 2 6 4 2 T T 2A U Y J 1 1A U Y ...

Page 16: ... those in neighboring areas While Westward attempts to assure that its products comply with such codes it cannot guarantee compliance and cannot be responsible for how the product is installed or used Before purchase and use of a product review the product applications and all applicable national and local codes and regulations and be sure that the product installation and use will comply with the...

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