Hercules HCB721B Owner'S Manual & Safety Instructions Download Page 9

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MAINTENANCE AND SERVICING

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Cleaning, Maintenance, 

and Lubrication

1. 

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 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
•  damaged electrical wiring
•  any other condition that may 

affect its safe operation.

2. 

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 wipe external surfaces of the tool 

with clean cloth. Wipe surfaces of upper and lower 
blade guards with a dry clean cloth. Keep hands 
and body away from blade while cleaning surfaces.  

3.  For blade changing instructions see 

Tool Changing

 on page 8.

4.  Disconnect battery pack and store battery pack, 

charger, and tool in dry, indoor area out of 
reach of children and away from metal objects 
(i.e., paperclips, coins) to prevent shorting.

5.  Li-Ion BATTERY MUST BE RECYCLED OR 

DISPOSED OF PROPERLY.   
Do not short, incinerate or open battery.

Troubleshooting

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Tool will 
not start.

1.  Battery Pack not properly 

connected. 
 

2.  Battery Pack not 

properly charged.

3.  Battery Pack worn out. 

4.  Internal damage or wear.

1.  Remove Battery Pack, make sure there are no 

obstructions, reinsert the Battery Pack according 
to its shape (it should only fit one way), and press 
firmly until the Battery Pack locks in place.

2.  Make sure Charger is connected and operating properly.  

Give enough time for Battery Pack to recharge properly.

3.  Dispose of old Battery Pack properly or recycle.  

Replace Battery Pack.

4.  Have technician service tool.

Tool operates 
slowly.

1.  Forcing tool to work too fast.
2.  Battery Pack power low.
3.  Battery Pack wearing out.

1.  Allow tool to work at its own rate.
2.  Recharge Battery Pack.
3.  Dispose of old Battery Pack properly or recycle.  

Replace Battery Pack.

Performance 
decreases 
over time.

1.  Blade dull or damaged.
2.  Battery Pack wearing out.

1.  Keep cutting Blades sharp.  Replace as needed.
2.  Battery Pack capacity will gradually decrease through use.  

If symptoms are severe, recycle old Battery 
Pack (or dispose of properly) and replace it.

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.  Blade dull or damaged.
3.  Blocked motor housing vents.

1.  Allow tool to work at its own rate.
2.  Keep cutting Blades sharp.  Replace as needed.
3.  Wear ANSI-approved safety goggles and 

NIOSH-approved dust mask/respirator while 
blowing dust out of motor using compressed air.

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Summary of Contents for HCB721B

Page 1: ...Manual Safety Instructions F WARNING 7R SUHYHQW VHULRXV LQMXU 8VHU PXVW UHDG DQG XQGHUVWDQG 2ZQHU V 0DQXDO 6 9 7 6 0 18 When unpacking make sure that the product is intact and undamaged If any parts a...

Page 2: ...UH GRLQJ DQG XVH FRPPRQ VHQVH ZKHQ RSHUDWLQJ D SRZHU WRRO R QRW XVH D SRZHU WRRO ZKLOH RX DUH WLUHG RU XQGHU WKH LQIOXHQFH RI GUXJV DOFRKRO RU PHGLFDWLRQ A moment of inattention while operating power...

Page 3: ...JUDVSLQJ VXUIDFHV GU FOHDQ DQG IUHH IURP RLO DQG JUHDVH Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations 5 6HUYLFH a DYH RXU SRZHU...

Page 4: ...rd may operate sluggishly due to damaged parts gummy deposits or a build up of debris c 7KH ORZHU JXDUG PD EH UHWUDFWHG PDQXDOO RQO IRU VSHFLDO FXWV VXFK DV SOXQJH FXWV DQG FRPSRXQG FXWV 5DLVH WKH ORZ...

Page 5: ...ring use Repeated or long term exposure to vibration may cause temporary or permanent physical injury particularly to the hands arms and shoulders To reduce the risk of vibration related injury a Anyo...

Page 6: ...RE USE Read the 17 5 03257 17 6 7 1 250 7 21 VHFWLRQ DW WKH EHJLQQLQJ RI WKLV PDQXDO LQFOXGLQJ DOO WH W XQGHU VXEKHDGLQJV WKHUHLQ EHIRUH VHW XS RU XVH RI WKLV SURGXFW Note For additional information r...

Page 7: ...7612 Functions Upper Blade Guard Depth Gauge Lever Bevel 6FDOH H Key Rip HQFH QRE Battery Slot Trigger 6DZ Blade 7ULJJHU RFN 2XWHU Flange RZHU Blade Guard Blade Bolt RZHU Blade Guard Lever HYHO RFN QR...

Page 8: ...the Bevel Scale to set the desired angle 3 After adjustment tighten the Bevel Lock Knob Workpiece Set Up 1 Workpiece selection a Workpiece must be wood free of foreign objects and loose knots b Do no...

Page 9: ...properly connected 2 Battery Pack not properly charged 3 Battery Pack worn out 4 Internal damage or wear 1 Remove Battery Pack make sure there are no obstructions reinsert the Battery Pack according t...

Page 10: ...3 12 Shroud 1 13 Cylindrical Pin 1 14 Right Upper Blade Guard 1 15 Needle Bearing 1 16 Left Upper Blade Guard 1 17 Protective Cover 1 18 Spring 1 19 Spindle Lock Pin 1 20 Spindle Lock Button 1 21 Coun...

Page 11: ...3URGXFW V 6HULDO 1XPEHU HUH Note If product has no serial number record month and year of purchase instead Note Some parts are listed and shown for illustration purposes only and are not available in...

Page 12: ...ty 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 d...

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