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For technical questions, please call 1-888-866-5797.

Item 57719 

        

12. 

  The battery Charger gets hot during  

 

use.  

The Charger’s heat can build  

 

up to unsafe levels and create a fire  

 

hazard if it does not receive adequate 

ventilation, due to an electrical fault, or if it is used 
in a hot environment.  Do not place the Charger 
on a flammable surface.  Do not obstruct any 
vents on the Charger.  

Especially avoid placing 

the Charger on carpets and rugs; they are not 
only flammable, but they also obstruct vents 
under the Charger.  

Place the Charger on a 

stable, solid, nonflammable surface (such as a 
stable metal workbench or concrete floor) at least 
1 foot away from all flammable objects, such as 
drapes or walls.  Keep a fire extinguisher and a 
smoke detector in the area.  Frequently monitor 
the Charger and Battery Pack while charging.

13.  Charge Battery Pack using Hercules 12V Lithium 

Battery Charger only (sold separately).

Service

1. 

Have your power tool serviced by a 
qualified repair person using only identical 
replacement parts.  

This will ensure that the 

safety of the power tool is maintained.

2. 

Never service damaged battery packs.  

Service 

of battery packs should only be performed by the 
manufacturer or authorized service providers.

3.  Maintain labels and nameplates on the tool.   

These carry important safety information.   
If unreadable or missing, contact 
Harbor Freight Tools for a replacement.

Safety Instructions for 

Reciprocating Saws

1. 

Hold power tool by insulated gripping surfaces 
when performing an operation where the 
cutting accessory may contact hidden wiring.  

Cutting accessory contacting a “live” wire may 
make exposed metal parts of the power tool “live” 
and could give the operator an electric shock.

2. 

Use clamps or another practical way to secure 
and support the workpiece to a stable platform.  

Holding the workpiece by hand or against your body 
leaves it unstable and may lead to loss of control.

3.  Keep hands away from moving parts.  

Never place your hands near the cutting area.

4.  Use extra caution when cutting overhead and 

pay particular attention to overhead wires which 
may be hidden from view.  Anticipate the path 
of falling branches and debris ahead of time.

5.  Avoid unintentional starting.  Prepare to 

begin work before turning on the tool.

6.  Do not lay the tool down until it has come to 

a complete stop.  Moving parts can grab the 
surface and pull the tool out of your control.

7.  When using a handheld power tool, 

maintain a firm grip on the tool with both 
hands to resist starting torque.

8.  Do not leave the tool unattended when the 

Battery Pack is connected.  Turn off the tool, 
and remove the Battery Pack before leaving.

9.  This product is not a toy.  

Keep it out of reach of children.

10.  People with pacemakers should consult their 

physician(s) before use.  Electromagnetic fields in 
close proximity to heart pacemaker could cause 
pacemaker interference or pacemaker failure.

11.  The warnings, precautions, and instructions 

discussed in this instruction manual cannot cover all 
possible conditions and situations that may occur.   
It must be understood by the operator that 
common sense and caution are factors 
which cannot be built into this product, 
but must be supplied by the operator.

Lithium Battery Safety Warnings

  

LITHIUM BATTERIES 
STORE A LARGE AMOUNT 
OF ENERGY AND WILL 

VENT FIRE OR EXPLODE IF MISTREATED:

1.  Keep Battery Pack dry.
2.  DO NOT DO ANY OF THE FOLLOWING 

TO THE BATTERY PACK:
• 

Open,

• 

Drop,

• 

Short-circuit,

• 

Puncture,

• 

Incinerate, or

• 

Expose to temperatures greater than 140°F.

3.  Charge Battery Pack only according 

to its Charger’s instructions.

4.  Inspect Battery Pack before every use; 

do not use or charge if damaged.

Summary of Contents for HDB79B

Page 1: ...must read and understand Owner s Manual SAVE THIS MANUAL When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Blade sold separately Reference 57719 Owner s Manual Safety Instructions REV 21c ...

Page 2: ...use a power tool while you are tired or under the influence of drugs alcohol or medication A moment of inattention while operating power tools may result in serious personal injury 2 Use personal protective equipment Always wear eye protection Protective equipment such as dust mask non skid safety shoes hard hat or hearing protection used for appropriate conditions will reduce personal injuries 3 ...

Page 3: ...grasping surfaces dry clean and free from oil and grease Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations Battery Tool Use and Care 1 Prevent unintentional starting Ensure the switch is in the off position before connecting to battery pack picking up or carrying the power tool Carrying the power tool with your finger on the swit...

Page 4: ...clamps or another practical way to secure and support the workpiece to a stable platform Holding the workpiece by hand or against your body leaves it unstable and may lead to loss of control 3 Keep hands away from moving parts Never place your hands near the cutting area 4 Use extra caution when cutting overhead and pay particular attention to overhead wires which may be hidden from view Anticipat...

Page 5: ...ly SAVE THESE INSTRUCTIONS Grounding TO PREVENT ELECTRIC SHOCK AND DEATH FROM INCORRECT GROUNDING Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded Do not modify the power cord plug provided with the charger Do not use the charger if the power cord or plug is damaged If damaged have it repaired by a service facility before use If the plug will not...

Page 6: ... separately fully into the Clamp Release Collar to close Clamp Blade Clamp Collar Note Insert Blade facing either up or down depending on the work to be done 2 Check that the Saw Blade is firmly locked in place by twisting Collar in opposite direction of the arrow 3 To remove blade rotate Collar in the direction of the arrow remove blade from Clamp and then release Collar WARNING To prevent seriou...

Page 7: ...ut Do not press too hard If the Saw slows down as it is cutting apply less pressure on the Saw 8 To stop the Saw release the Trigger 9 Allow the Saw to come to a complete stop before setting it down 10 When finished using the Saw push the Trigger Lock to the right to lock Trigger 11 To prevent accidents remove Battery Pack after use Clean then store the Saw indoors out of children s reach Plunge C...

Page 8: ... before further use Cleaning Maintenance and Lubrication 1 BEFORE EACH USE inspect the general condition of the tool Check for leaking swollen or cracked battery pack loose hardware misalignment or binding of moving parts cracked or broken parts any other condition that may affect its safe operation 2 AFTER USE wipe external surfaces of the tool with clean cloth 3 Li Ion BATTERY MUST BE RECYCLED O...

Page 9: ... old Battery Pack properly or recycle Replace Battery Pack Performance decreases over time 1 Carbon brushes worn or damaged 2 Blade dull or damaged 1 Have qualified technician replace brushes 2 Keep blades sharp Replace as needed Excessive noise or rattling Internal damage or wear Carbon brushes or bearings for example Have technician service tool Overheating 1 Forcing tool to work too fast 2 Blad...

Page 10: ...Pin 1 1 12 Bearings Bushing 1 13 Reciprocating Rod 1 14 Cylindrical Pin 2 1 15 Cylindrical Pin 3 1 16 Gearbox Left 1 17 Hex Socket Pan Head Screw 4 18 Housing Left 1 Part Description Qty 19 End Cover 1 20 Hex Self Tapping Screw 6 21 Holder Left 1 22 Holder Right 1 23 Stator 1 24 Deep Groove Ball Bearing 1 25 Bearing Bushing 1 26 Rotor 1 27 Hex Socket Screw 4 28 Pressing Plate 2 1 29 Hex Socket Scr...

Page 11: ...Page 11 For technical questions please call 1 888 866 5797 Item 57719 Assembly Diagram ...

Page 12: ...acilities criminal activity improper installation normal wear and tear or to lack of maintenance We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our product Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation of exclusion may...

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