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We, Keyang Electric 

Machinery Co., Ltd., would 
like to express our sincerest
gratitude to you who always use
our power tools. 
You must read carefully this

instruction manual

before use

the tool for safe and effective
operation. 

1. Caution for safety

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2. Check Before Use

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3. Product Specifications and Standard Accessories 

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4. Name and Use of Each Part

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5. How to install, remove and operate

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11

6. How to Change Grease and Supply Oil

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7. Repair and Maintenance

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N o t e

As our engineers are striving for the constant research and

development to develop the quality of products, shape or structure

of our model can be changed without previous notice. 

Table of Contents 

Safety Rules

GENERAL SAFETY INSTRUCTIONS

1. Keep your work area in order. 

Distractions in the work area and workbench may cause accidents. 

2. Consider your work environment. 

Do not expose power tools to rain and other forms of moisture. 
Keep your work area well lit.
Do not operate power tools in explosive atmospheres, such as in the presence of
flammable liquids or gases. 

3. Beware of electric shocks.

Avoid body contact with grounded surfaces such as water pipes, heaters, ranges and
refrigerators.  

4. Keep children away while operating a power tool. 

Keep children away from a power tool or extension cord.
Keep visitors away from your work area. 

5. Keep your tools in a safe place, away from your children.

Keep your tools in a dry and locked place out of the reach of children.

6. Do not plug power tools into overloaded electric circuits.

Using power tools with the specified electric output will allow for their safer and more
effective operation. 

7. Always use the proper tools.

Do not use weak tools or parts for high strength work.
Use the correct tool for your application.
For example: do not use a circular saw to fell or prune trees. 

8. Dress properly. 

Do not wear loose clothing or jewelry. Loose clothes, and jewelry or long hair may be
caught in moving tool parts. Non-skid safety shoes must be used for outdoor operation
of power tools. 

9. Always wear safety goggles. 

Use a dust mask or a face mask for applications that generate dust. 

10. Do not abuse the cord. 

Never use the cord to carry tools or to pull a plug from an outlet. Keep the cord away
from heat, oil, and sharp edges. 

11. Fix your working materials.

Fix your working materials with a clamp or a vice, rather than by hand. This is safer
and lets you operate your work materials with both hands.

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Summary of Contents for KH-42HA

Page 1: ...an shi Kyouggi do KOREA Tel Int 82 31 490 3000 Fax Int 82 31 490 3019 ELECTRIC HAMMER www keyang com M A N UA L Please read this manual to the last for safe and efficient operating before using keep w...

Page 2: ...s such as water pipes heaters ranges and refrigerators 4 Keep children away while operating a power tool Keep children away from a power tool or extension cord Keep visitors away from your work area 5...

Page 3: ...irected matter is violated 12 Do not overreach Keep proper footing and balance at all times 13 Maintain your tools with care Keep your tools clean and sharp so that you will be able to work with them...

Page 4: ...you may experience the trouble of the tool You must change at A S centers agencies authorized by Keyang Electric Machinery Co Ltd Make sure the leakage circuit breaker is in the power source of the e...

Page 5: ...e motor can be damaged by a fire Product Specifications and Standard Accessories Power source Motor Power input W No Load BPM Weight Excl cord KH 42HA KH 42MA KH 6500 Single phase AC 50 60 Hz 110V 120...

Page 6: ...nstalling or removing the bit KH 42HA KH 42MA KH 6500 1 Installing and removing bull 1 KH 42HA KH 42MA KH 42MA is suitable for insert tools with SDS MAX shank KH 42HA has the tool holder system of hex...

Page 7: ...ong time without supplying of grease Time for changing of grease 1 Change grease every 6 months after purchasing the product 2 Change grease at the below places Main office of Keyang Electric Machiner...

Page 8: ...How to supply oil Model KH 6500 As the tool has the inside oiling tank you can use it for 20 days without additional oil supply 3 4 hours consecutive use a day Supply oil in the oiling tank as follows...

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