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GR8-1250 WalMaRT

Midtronics Inc.     7000 Monroe Street     Willowbrook, IL 60527

www.midtronics.com

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Non-rechargeable batteries may 

burst when charging causing 

personal injury and damage.

Only charge rechargeable lead-acid 

maintenance-free, low-maintenance or deep-

cycle batteries.

The  charger  is  not  intended  to  supply  power  to  a  low-

voltage  electrical  system  other  than  applications  using 

rechargeable,  lead-acid  type  batteries.  Do  not  use  the 

battery charger for charging dry-cell batteries commonly 

used  with  home  appliances.  These  batteries  may  burst 

and cause personal injury and property damage.

2.9  NEVER charge a frozen battery; thaw it out first. 

3  Preparing To Charge The Battery

3.1  If  it  is  necessary  to  remove  the  battery  from  vehicle  to 

charge it, always remove the grounded terminal from the 

battery first. Make sure all accessories in the vehicle are off, 

so as not to cause an arc.

3.2  Be sure the area around the battery is well ventilated while 

the battery is being charged. Gas can be forcefully blown 

away by using a piece of cardboard or other nonmetallic 

material as a fan.

3.3  Clean the battery terminals. Be careful to keep corrosion from 

coming into contact with your eyes.

3.4  Add  distilled  water  in  each  cell  until  the  battery  acid 

reaches the level specified by the manufacturer. This helps 

purge excessive gas from the cells. Do not overfill. For a 

battery without caps, carefully follow the manufacturer’s 

recharging instructions 

3.5  Study all battery manufacturer’s specific precautions such 

as removing or not removing cell caps while charging and 

recommended rates of charge.

3.6  Determine the voltage of the battery by referring to the 

car owner’s manual and make sure that the output voltage 

selector switch is set at the correct voltage. If the charger 

has an adjustable charge rate, charge the battery initially 

at lowest rate. If the charger has only one voltage, verify 

that the battery voltage matches the voltage of charger.
For  a  charger  not  having  an  output  voltage  selector 

switch, determine the voltage of the battery by referring 

to  car  owner’s  manual  and  make  sure  it  matches  the 

output rating of the battery charger.

4.   Grounding / aC Power Cord Connections

4.1  The charger must be grounded to reduce risk of electric 

shock. The charger is equipped with an electric cord hav-

ing  an  equipment  grounding  conductor  and  a  ground-

ing plug. The plug must be plugged into an outlet that is 

properly installed and grounded in accordance with all lo-

cal codes and ordinances.

Hazardous voltage. 

An improper connection can result in 

electric shock

To avoid electrical shock or burn,  never alter 

the  charger’s  original  AC  cord  and  plug.    Dis-

connect plug from outlet when charger is idle.

IF THE PLUG DOES NOT FIT THE OUTLET, HAVE A PROPER 

OUTLET INSTALLED BY A QUALIFIED ELECTRICIAN. 

4.2  This battery charger is for use on a nominal 120-volt cir-

cuit and has a grounding plug that looks like the plug il-

lustrated in 

Figure A

. A temporary adapter, which looks like 

the adapter illustrated in 

Figures B

 and 

C

, may be used to 

connect  this  plug  to  a  two-pole  receptacle  as  shown  in 

Figure B

, if a properly grounded outlet is not available. The 

temporary  adapter  should  be  used  only  until  a  properly 

grounded outlet can be installed by a qualified electrician.

Hazardous voltage. 

An improper connection can result in 

electric shock

Before using an adapter be certain the center 

screw of the outlet plate is grounded.  The rigid 

ear or lug extending from the adapter must be 

connected to a properly grounded outlet.  Make 

certain it is grounded.  If necessary, replace the 

original screw that secures the adapter ear or 

lug  to  the  cover  plate  and  make  the  ground 

connection to the grounded outlet.

USE OF AN ADAPTER IS NOT ALLOWED IN CANADA. IF A 

GROUNDING-TYPE  RECEPTACLE  IS  NOT  AVAILABLE,  DO 

NOT USE THIS APPLIANCE UNTIL THE PROPER OUTLET IS 

INSTALLED BY A QUALIFIED ELECTRICIAN.

4.3   An extension cord should not be used unless absolutely 

necessary. Use of an improper extension cord could result 

in a risk of fire and electric shock. If an extension cord must 

be used, make sure:

a.  that the pins on plugs of the extension cord are the 

same number, size, and shape as those of the plug on 

the charger;

b.  

that  the  extension  cord  is  properly  wired  and  in 

good electrical condition;

c.  that the wire size is large enough for the AC ampere 

rating of charger as specified in the following table.

Safety Instructions

Summary of Contents for GR8-1250

Page 1: ...INSTRUCTION ManuAl GR8 1250 WALMART Multitasking Battery And Electrical Diagnostic Station June 2009 167 000155A...

Page 2: ...This page intentionally left blank...

Page 3: ...Chapter 3 Getting Started 18 Logging In for the First Time 18 Boot up 18 Selecting A Language 18 Zip Code 18 Setting User Preferences 18 Help Menu 18 Multitasking 18 Procedure Example 18 Chapter 4 Tes...

Page 4: ...eting A User ID 31 Editing A User ID 31 Info Upload 31 Display 31 Contrast Level 31 Coupon 31 Edit Coupon 32 Track Calls 32 Language 32 Admin 33 Options 33 Change Admin Pin 33 Clear Test Totals 33 Res...

Page 5: ...ire 1 7 To reduce risk of electric shock unplug the charger from the AC outlet before attempting any maintenance or cleaning Turning off the controls will not reduce this risk Remove marine boat batte...

Page 6: ...it matches the output rating of the battery charger 4 Grounding AC Power Cord Connections 4 1 The charger must be grounded to reduce risk of electric shock The charger is equipped with an electric cor...

Page 7: ...o reduce the risk of explosion 7 1 Before working on the vehicle firmly apply the emergen cy brake and place the gear shift to NEUTRAL shift an automatic transmission to PARK 7 2 Locate the charger as...

Page 8: ...y explosion Follow these steps when the battery is installed in the vehicle to reduce the risk of explosion WARNING Make sure all vehicle loads are OFF to prevent a possible arc 8 1 Check the polarity...

Page 9: ...a Never smoke or allow a spark or flame in the vicinity of a battery WARNING REQUIRED BY CALIFORNIA PROP 65 Bat tery posts terminals and related accessories contain lead and lead compounds chemicals k...

Page 10: ...ou register it online to activate your warranty Registration will also make it faster and easier for you to obtain technical support and service The serial number label is on the back of the Control M...

Page 11: ...the module down at an angle arrows until the bolts are inserted securely into the slots extend ing from the module s holes 4 Place the Charge Engine with the attached Control Mod ule on the cart 5 Co...

Page 12: ...g alarm to indicate transitions and warnings Serial Cable Connection Control Module The short serial cable connects the Control Module to the Multitask Bridge Multitask Bridge Allows the unit to charg...

Page 13: ...Serial Number On bottom of label required for product registration Multitask Bridge Charger Cable Connectors Serial Cable Connection Charge Engine Serial cable connection from Charge Engine to the Mu...

Page 14: ...e them as part of the keys ARROW keys Press the ARROW keys to scroll to numerical values and move to menus and icons POWER Key Press the POWER key to turn the control module ON and OFF Title Bar The t...

Page 15: ...cancels your choice or returns you to the previous screen although the word above it may also vary Examples BACK and CLEAR Menu Icons A menu icon is a graphical representation of a function you can se...

Page 16: ...ey represent while others are menu icons that lead to two or more options Menu Icon Description Tests a battery using the battery information you select in a series of screens Automatically tests char...

Page 17: ...en information on the GR8 using a data card Settings to adjust the screen contrast and backlight time Use this option to turn Coupon printing on or off Enables you to create a coupon at the bottom of...

Page 18: ...ons that you may want to re view prior to testing This menu also provides troubleshooting information and phone numbers for Midtronics Customer Service in case you encounter a problem and or need tech...

Page 19: ...a carry tool or strap to lift and transport the battery Failure to properly install lead terminal adapters or using adapters that are dirty or worn may cause false test results When testing side post...

Page 20: ...format MM YY for example 01 06 for January 2006 and press NEXT If the date code is unavailable press ENTER to continue IF AVAILABLE ENTER THE BATTERY DATE CODE MM YY Press the NEXT soft key to continu...

Page 21: ...ge reappears You may be testing too close to a noise source such as a charger or other high current device If so move away and retest If you are unable to find the source of the noise fully charge the...

Page 22: ...pacity During testing the GR8 accurately detects a battery s State of Charge and indicates this as part of the test results Table 4 Battery Decisions Battery Test Decision Recommended Action GOOD BATT...

Page 23: ...from the battery terminals 2 Connect the large clamps from the charge engine to the battery terminals 3 From the Main Menu highlight the DIAGNOSTIC icon and press the SELECT key 4 Use the UP or DOWN A...

Page 24: ...nt of current a battery can provide at 32 F 0 C 100 to 3000 8 Using the keypad or the UP and DOWN ARROW keys to select the BATTERY RATING CCA Press ENTER Charging Modes Diagnostic Charging has four mo...

Page 25: ...ternates between the CHARGING and TESTING screens The TESTING screens represent a two step process Step 1 The GR8 applies an electrical load and tests the bat tery s response Step 2 The GR8 measures t...

Page 26: ...capacity Selected rating Replaced AMP Hours Battery decision Maximum Charging Time Screen 2 of 3 Replace Range OK Replace Soon Range Good Range Screen 3 of 3 The GR8 displays one of three battery dec...

Page 27: ...or for all batteries tested using the New Battery Test Totals TOTALS counts the number of battery tests in two main categories TESTER TOTALS and CHARGER TOTALS Subcategories include LIFETIME USER TOTA...

Page 28: ...100 When the limit is reached you will no longer be able to test until you clear all results from memory Instructions follow on this page 3 Enter the information required in steps 5 through 8 in Chap...

Page 29: ...e your selection Time 1 Use the LEFT or RIGHT ARROW keys to highlight the hour minutes or AM or PM To rapidly scroll hold down an UP or DOWN ARROW key 9 19 PM 2 Press the SAVE soft key to save your se...

Page 30: ...AVE soft key to save your setting or the BACK soft key to return to the SHOP INFO screen without saving the changes Screen 2 5 YOUR COUNTRY 6 YOUR PHONE NUMBER 7 WWW WEBSITE COM 8 Screen 1 1 YOUR SHOP...

Page 31: ...into the Control Module the INFO UPLOAD utility updates Shop Coupon User and Screen information on the GR8 Display The LCD CONTRAST utility allows you to adjust the contrast of the text on the display...

Page 32: ...rather than move the file to your PC The default is OFF To set your preference 1 Use the UP or DOWN ARROW key or press the correspond ing numerical key 1 or 2 to move the dot to the option button of...

Page 33: ...ng to enable ON to display user defined text fields Default is off Change Admin Pin This function allows you to enter a new Admin Pin Clear Test Totals This function allows you to clear the test total...

Page 34: ...times as needed To add a space move the cursor forward by pressing the RIGHT ARROW key ENTER SCREEN TITLE Press the NEXT soft key to continue 4 Use the UP or DOWN ARROW key to move to the line you wan...

Page 35: ...de For charger this can only occur at main menu or in a charger test screen Tool will return to state that threw the error if the connection becomes valid For charger both the bridge and controller wi...

Page 36: ...les are connected Also make sure the Multitasker module is receiving power and is properly connected between the Control Module and the charger WIRELESS ERROR IS CHARGER TURNED ON ARE YOU WITHIN RANGE...

Page 37: ...d baking soda Periodically clean the clamps using a mixture of baking soda and water or a mild hand soap and a small bristle brush Clean the battery terminals If stud adapters are required fasten them...

Page 38: ...replace the equipment with a remanufactured equipment This limited warranty applies only to the specified equipment and does not cover any other equipment static damage water damage overvoltage damage...

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