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Electric Jackhammer 

 

 

 

Set-Up 

Prior to Operation 

Power Source 

Ensure that the power source to be utilised conforms to the power requirements specified on the product 
nameplate. 

Grounding 

This tool should be grounded while in use to protect the operator from electric shock. The tool is equipped with a 
three-conductor cord and grounding type plug to fit the proper grounding type receptacle. The green (or green 
and yellow) conductor in the cord is the grounding wire. Never connect the green (or green and yellow) wire to a 
live terminal. 

Power Switch 

Ensure that the power switch is in the OFF position. If the plug is connected to a power receptacle while the 
power switch is in the ON position, the power tool will start operating immediately, inviting serious accidents. 

Extension Cord 

When the work area is removed from the power source, use an extension cord of sufficient thickness and rated 
capacity. The extension cord should be kept as short as practicable. 

25mm 

1.  Raise the retainer and insert the shank portion of a drill bit into the hexagonal hole on the front cover until it 

reaches the extremity (Fig. 1-1 in the 

Illustrative Guide

 above). 

2.  By slightly tapping the top of the bit holder with a wooden mallet, replace the bit holder to grip the bit firmly. 

38mm 

1.  Turn the stopper to the direction of arrow A, turn the retainer to the direction of arrow B. After that, insert the 

tool shank into the hexagon hole on the front cover (Fig. 1 -2 in the 

Illustrative Guide

 above). 

2.  Pushing the stopper to the direction of arrow A, turn the retainer to arrow B in the opposite direction. After 

that, remove the stopper. 

NOTE

: When dismounting the bull points, reverse the procedures described above. 

Operation 

How to Use the Jackhammer 

How to Drill Holes 

1.  Pull the switch trigger after applying the drill bit tip to the drilling position. 

2.  It is unnecessary to forcibly press the drill main body. It is sufficient to slightly press the drill to an extent that 

clips are freely discharged. 

CAUTION

: Although a safety clutch is built in this drill, the drill bit will suddenly stop when it strikes against a 

buried reinforcing bar, and the drill will start to reverse its spin as a reaction. 

Always continue a hole-drilling job while strongly gripping both the side handle and the handle. 

Содержание JHKELEBMRA10S

Страница 1: ...Electric Jackhammer User Manual RETAIN THIS MANUAL FOR FUTURE REFERENCE PLEASE READ THIS MANUAL CAREFULLY BEFORE USE ...

Страница 2: ...ll Holes 6 How to Clip or Crutch 7 Drilling and Driving In Operations for Self Drilling Anchors 7 When an Impact Anchor Adapter is Used 7 When a Rotation and Impact Anchor Adapter is Used 7 When a Taper Shank Adapter is Used 7 Handling the Core Bit 7 Mounting 7 Drilling Holes 8 Dismounting the Core Bit 8 Oil Feeding 8 Maintenance 8 Inspecting the Tool 8 Inspecting the Mounting Screws 8 Maintenance...

Страница 3: ...not wear loose clothing or jewellery They can be caught in moving parts Rubber gloves and non skid footwear are recommended when working outdoors Wear protective hair covering to contain long hair Use safety glasses Also use face or dust mask if the work area is dusty Don t abuse the cord Never carry the tool by the cord or yank it to disconnect it from the receptacle Keep the cord away from sourc...

Страница 4: ...t a lower input than what is specified on the nameplate otherwise the finish may be damaged and working efficiency reduced due to motor overload Do not wipe plastic parts with solvent Solvents such as gasoline thinner benzene carbon tetrachloride alcohol ammonia and oil containing chloric acid may damage and crack plastic parts Do not wipe them with such solvents Wipe plastic parts with a soft clo...

Страница 5: ...Electric Jackhammer 3 Illustrative Guide ...

Страница 6: ...Electric Jackhammer 4 ...

Страница 7: ...1 Core bit tip 9 Striking by hammer drill 22 Oil gauge Check the oil quantity by holding the body upright 10 Move right and left 23 Resupply oil when the oil level drops to less than approx 3mm 11 Hole depth 24 Wear limit 12 Drift key 25 No of carbon brush 13 Wrench out Applications Drilling holes in concrete Drilling anchor bolt holes Crushing concrete chipping digging and squaring Application Ex...

Страница 8: ...the hexagonal hole on the front cover until it reaches the extremity Fig 1 1 in the Illustrative Guide above 2 By slightly tapping the top of the bit holder with a wooden mallet replace the bit holder to grip the bit firmly 38mm 1 Turn the stopper to the direction of arrow A turn the retainer to the direction of arrow B After that insert the tool shank into the hexagon hole on the front cover Fig ...

Страница 9: ... the snapping direction When a Rotation and Impact Anchor Adapter is Used 1 Attach a self drilling anchor to the anchor adapter 2 Turn ON the switch and drill a base hole with the self drilling anchor At the start of the hole drilling slightly tilt the drill to determine the position of the hole 3 After clearing out dust with a syringe attach the plug to the anchor tip and drive in the anchor with...

Страница 10: ...ank with a hand hammer two or three times whereby the round head screw is loosened and the drill is ready for disassembly Oil Feeding CAUTION Prior to oil feeding always disconnect the plug from the power supply receptacle Since an oil chamber is built in this Electric Jackhammer it can be used for approximately 20 days without supplying it with lubricating oil assuming that the drill is used cont...

Страница 11: ... within the brush holders Replacing the Carbon Brushes The carbon brush can be removed by removing the tail cover and brush cap in that order at the interior Inspecting the Dust Cover The dust cover functions as a protection from dirt and dust for the interior mechanism When the interior of the dust cover is worn out replace it with a new dust cover The dust cover can be removed by pulling it Spec...

Страница 12: ...en access to the product The product has been supplied by a general merchandise retailer that may not be familiar with your specific applic ation or your description of the application Be sure to attain third party approval for your application from a qualified specialist before use regardless of prior assurances by the retailer or its representatives This product is not intended for use where fai...

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