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Page 11

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

SKU 68150        

2.  Remove the Rubber Cap (68) 

and then the Brush Cap (67).

3.  Remove old Carbon Brush (66) 

from Carbon Brush holder.

4.  Insert new Carbon Brush into 

Carbon Brush holder.

5.  Replace Brush Cap and the Rubber Cap.
6.  Replace Carbon Brush Cover.

7. 

WARNING! 

Verify all bolts and 

connectors are fastened tight.

Cleaning

1.  Clean the Demolition Hammer 

with warm water, soap a soft cloth, 

preferably after each use.

2. 

WARNING! 

Do not use solvents 

when cleaning the Electric Hammer.  

Doing so can damaged the tool.

Troubleshooting

Problem

Possible Causes

Likely Solutions

Tool will not start.

1.  Cord not connected.
2.  No power at outlet. 

 

 

3.  Tool’s thermal reset breaker 

tripped  (if equipped).

4.  Internal damage or 

wear.  (Carbon brushes or 

switch, for example.)

1.  Check that cord is plugged in.
2.  Check power at outlet.  If outlet is unpowered, 

turn off tool and check circuit breaker.  If breaker 

is tripped, make sure circuit is right capacity 

for tool and circuit has no other loads.

3.  Turn off tool and allow to cool.  

Press reset button on tool.

4.  Have technician service tool.

Tool operates slowly. Extension cord too long or 

wire size too small.

Eliminate use of extension cord.  If an extension 

cord is needed, use shorter/heavier gauge cord.  

See 

Extension Cords

 in 

GROUNDING

 section.

Performance 

decreases over time.

1.  Accessory dull or damaged. 

2.  Carbon brushes worn 

or damaged.

1.  Keep cutting accessories sharp.  

Replace as needed.

2.  Have qualified technician replace brushes.

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.  Accessory misaligned. 

3.  Accessory dull or damaged. 

4.  Blocked motor housing vents. 

 

5.  Motor being strained by long or 

small diameter extension cord.

1.  Allow tool to work at its own rate.
2.  Check and correct accessory to 

fence and/or table alignment.

3.  Keep cutting accessories sharp.  

Replace as needed.

4.  Wear ANSI-approved safety goggles and NIOSH-

approved dust mask/respirator while blowing 

dust out of motor using compressed air.

5.  Eliminate use of extension cord.  If an 

extension cord is needed, use one with the 

proper diameter for its length and load.  See 

Extension Cords

 in 

GROUNDING

 section.

 Follow all safety precautions whenever diagnosing or servicing 

the tool.  Disconnect power supply before service.

Summary of Contents for 68150

Page 1: ...ights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this manual...

Page 2: ...in minor or moderate injury NOTICE is used to address practices not related to personal injury CAUTION without the safety alert symbol is used to address practices not related to personal injury Gener...

Page 3: ...ool Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents d Do not overreach Keep proper footing and balance at all times This enables...

Page 4: ...e wire will make exposed metal parts of the tool live and shock the operator 4 Keep clear of moving parts 5 Unplug before inspecting removing or installing chisel or performing any service 6 Pull on c...

Page 5: ...nual 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...

Page 6: ...tion See Outlets for 2 Prong Plug Extension Cords 1 Grounded tools require a three wire extension cord Double Insulated tools can use either a two or three wire extension cord 2 As the distance from t...

Page 7: ...EXTENSION CORD LENGTH 25 50 75 100 150 0 2 0 18 18 18 18 16 2 1 3 4 18 18 18 16 14 3 5 5 0 18 18 16 14 12 5 1 7 0 18 16 14 12 12 7 1 12 0 18 14 12 10 12 1 16 0 14 12 10 16 1 20 0 12 10 TABLE A Based o...

Page 8: ...k Wrench UNPACKING When unpacking make sure the item is intact and undamaged If any parts are missing or broken please call Harbor Freight Tools at 1 800 444 3353 as soon as possible INSTRUCTIONS FOR...

Page 9: ...erify Demolition Hammer is unplugged 2 Pull out and turn Locking Lever 73A either clockwise or counterclockwise 3 Insert the shank portion of the chisel 1 into the Retainer 70A 4 Slide Locking Lever b...

Page 10: ...ring and any other condition that may affect its safe operation 2 AFTER USE wipe external surfaces of the tool with clean cloth 3 Wipe tool with a lint free cloth after each use to remove all dust and...

Page 11: ...ician service tool Tool operates slowly Extension cord too long or wire size too small Eliminate use of extension cord If an extension cord is needed use shorter heavier gauge cord See Extension Cords...

Page 12: ...5 39 Flat Washer 8 4 39A Spring Washer 8 4 40 Ball Bearing 6001 1 41B O Ring 58x 2 1 42 Piston 1 43 L Ring 32x7 1 44 Piston Pin 1 45 Cylinder 1 46 Aluminum Head 1 47C Hex Socket Bolt M8x40 4 48 Ring 1...

Page 13: ...Page 13 For technical questions please call 1 800 444 3353 SKU 68150 ASSEMBLY DIAGRAM...

Page 14: ...of 90 days from the date of purchase This warranty does not apply to damage due directly or indirectly to misuse abuse negligence or accidents repairs or alterations outside our facilities criminal a...

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