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For technical questions, please call 1-800-444-3353.

SKU 38391 

        

speciFications

Start Amps

400

Peak Amps

900

Battery

12 V, Lead-Acid, 

Rechargeable

Charging Current = 0.18A

Booster Cables

#4 Gauge, 17” Length

Includes:  12 Volt Cigarette Lighter Charger,  

AC Adapter Receptacle, Built-in Light,  

Booster Cable Storage, Charge/Battery Indicators

note:

 Charging performance of this tool 

(if charged by line voltage) may vary 

depending on variations in local line 

voltage. Extension cord usage may 

also affect charging performance.

save this manual

You will need the manual for 

the safety warnings and precautions, 

assembly instructions, operating and 

maintenance procedures, parts list and 

diagram.  Keep your invoice with this 

manual.  Write the invoice number on the 

inside of the front cover.  Keep the manual 

and invoice in a safe and dry place for 

future reference.

saFety warnings and 

precautions

warning: when using tool, basic safety 

precautions should always be followed 

to reduce the risk of personal injury and 

damage to equipment.
read all instructions before using this 

tool!

1. 

Keep work area clean

.  Cluttered 

areas invite injuries.

2. 

observe work area conditions

.  

Do not use machines or power tools 

in damp or wet locations.  Don’t 

expose to rain.  Keep work area well 

lighted.  Do not use in the presence 

of flammable gases or liquids.

3. 

Keep children away

.  Children must 

never be allowed in the work area.  

Do not let them handle this product.

4. 

store idle equipment

.  When not 

in use, tools must be stored in a dry 

location to inhibit rust.  Always lock 

up tools and keep out of reach of 

children.

5. 

use the right tool for the job

.   Do 

not attempt to force a small tool or 

attachment to do the work of a larger 

industrial tool.  There are certain 

applications for which this tool was 

designed.  It will do the job better and 

more safely at the rate for which it 

was intended.  Do not modify this tool 

and do not use this tool for a purpose 

for which it was not intended.

6. 

dress properly

.  Do not wear 

loose clothing or jewelry as they 

can be caught in moving parts.  

Protective, electrically non-conductive 

clothes and non-skid footwear are 

recommended when working.  Wear 

restrictive hair covering to contain 

long hair.

7. 

wear ansi-approved splash-

resistant safety goggles. 

8. 

do not overreach

.  Keep proper 

footing and balance at all times.

9. 

maintain tools with care

.  Keep 

tools clean for better and safer 

performance. Follow instructions for 

lubricating and changing accessories. 

Inspect tool cords periodically and, if 

damaged, have them repaired by an 

authorized technician. The handles 

must be kept clean, dry, and free from 

oil and grease at all times.

Summary of Contents for CHICAGO ELECTRIC 38391

Page 1: ... consent of Harbor Freight Tools Diagrams within this manual may not be drawn proportionally Due to continuing improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included For technical questions or replacement parts please call 1 800 444 3353 Note After purchase and before initial use of the Jump Start fully charge t...

Page 2: ...ions Don t expose to rain Keep work area well lighted Do not use in the presence of flammable gases or liquids 3 Keep children away Children must never be allowed in the work area Do not let them handle this product 4 Store idle equipment When not in use tools must be stored in a dry location to inhibit rust Always lock up tools and keep out of reach of children 5 Use the right tool for the job Do...

Page 3: ...nician 15 If you come in contact with battery acid immediately wash the effected area with cool clean water Call for medical assistance and continue flushing the effected areas until medical help arrives 16 The ON Off switch See FIGURE 1 next page regulates power to the clamps only Keep it in the Off position except when jumpstarting 17 Lead acid batteries vent hydrogen gas during normal operation...

Page 4: ... until the DC Charging LED turns off 3 After each jump start fully recharge the battery until the DC Charging LED turns off It may take up to 48 hours to fully charge the Jump Start battery Check the progress by pressing the Voltage Test Switch The level of battery power will then display on the Test Meter 4 Fully recharge Jump Start battery every 30 days to ensure long battery life and reliabilit...

Page 5: ...the cigarette plug into the vehicle or boat cigarette lighter receptacle 6 Charge the unit for the minimal time needed to at least 14 volts Store the Cigarette Lighter Adapter when finished Note Charging room temperature 50o F 104o F Operation Using the Jump Start as a 12 VDC power source Warning The ON Off switch See FIGURE 1 regulates power to the clamps only Keep it in the Off position except w...

Page 6: ...rk Light in case it is needed 2 Attach the Red Clamp 1 to the red positive battery terminal 3 Attach the Black Clamp 2 to a non moving metal engine part on negative ground systems not to the negative battery terminal 4 Turn the On Off switch to On 5 Turn the ignition to On Accessory not start and wait a couple of minutes 6 Attempt to start the engine for no more than 5 6 seconds 7 If the vehicle d...

Page 7: ... shock use only in dry location Only use with battery packs distributed by Harbor Freight Tools others may burst causing personal injury and or property damage For additional information on battery recycling call 1 800 822 8837 Battery Replacement 1 Remove the eight screws around the back panel and lift off the cover plate Lift out the battery Note Notice how the red and black cables connect to th...

Page 8: ...UFACTURER AND OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO NOTE Some parts are listed and show...

Page 9: ...ncidental or consequential damages so the above limitation of exclusion may not apply to you This warranty is expressly in lieu of all other warranties express or implied including the warranties of merchantability and fitness To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint ...

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