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Table of Contents & Introduction    ..................................................... 2
Symbols & Decals       ................................................................... 3
Safety Instruction       ................................................................... 4 - 5
Pre-Operation    ...........................................................................6 
Operation    ..................................................................................7 - 9 
Parts           ............................................................................. 10 - 11
Related Products & Accessories   .................................................... 12
Warranty & Service    ............................................................. 13 - 14

1.0 

INSTRUCTIONS FOR USE OF MANUAL SECTIONS

Section Page

2.0 SPECIFICATIONS

Foreword/Introduction

2

This manual outlines the maintenance and operation of the  Core EZ.  This 
is a professional tool and is intended for use by trained and experienced 

operators. To get maximum benefit from your tool and to ensure maximum 

safety, be sure to read this manual thoroughly. You should also periodically 
review safety instructions.Keep all manuals provided with your equipment in 
a safe place at all times.

The information and specifications included in this publication were

in effect at the time of approval for printing. U.S.SAWS reserves the right, 

however, to discontinue or change specifications or design at any time with

-

out notice and without incurring any obligation.

The U.S.SAWS Core EZ Core® makes core drilling easy by utilizing standard 
110 V power. U.S.SAWS Core EZ offers a new way of core drilling. The entire 

unit and a selection of bits fit into a wheeled case that weighs under 50 

pounds. The Core EZ drills holes from 3 into 10 in with ease. The entire unit 
is mounted on a central guide shaft rigidly anchored to the wall that 
supports the weight of the tool during the drilling process. Having the sys-
tem’s anchor in the middle of the hole eliminates damage to the wall.

Read this entire operations and maintenance manual before using your new 
tool. Pay close attention to the Rules for safer operation

Disclosure

By purchasing and using the Core EZ, you agree to release U.S.SAWS 

of any and all liability. Under no circumstances will U.S.SAWS  be held 

liable for incidental or consequential damages resulting from the use 

of this product and/or defective parts or products associated with this 

product.

•  It is the responsibility of the owner/user to ensure that the operat-

ing instructions have been read and understood by the operator 

before the operation of the equipment begins.

•  It is the responsibility of the owner/user to understand and per-

form the maintenance and storage procedures as  

explained in the operating instructions.  

 

 

 

 

 

 

 

TO PREVENT SERIOUS INJURY DO NOT OPERATE SAW WITHOUTPROPER TRAINING AND.  

UNDERSTANDING OF THE OWNERS MANUAL 

WHEN OPERATING THIS MACHINE 

 

 

ALWAYS WEAR SAFETY APPROVED 

 

 

 

HEARING PROTECTION 

EYE OR FACE PROTECTION 

PROTECTIVE HELMET

   

 

 

 

 

  

 

     

PROTECTIVE GLASSES OR FULL FACE PROTECTION 

 
 

      WEAR HAND PROTECTION 

WARNING: Improperly maintaining the JS  including the Honda  engine  or  failing  to  correct  a  problem  before 

operation could cause a malfunction resulting in a serious injury. Always perform a pre-operation inspection before 

each operation and correct any problem. See Honda Engines Owner's Manual. 

 

5.2

 

 

Check the condition of the Honda engine. See the section titled "Before operation - is your 

engine ready to go?" in the Honda Engines Owner's Manual. 

 

  

WARNING: Exhaust gas from gasoline engines contains dangerous carbon monoxide. Breathing it can cause 

unconsciousness and even kill you. Always operate gasoline engine machines in a well-ventilated area. Do not 

operate in areas where exhaust fumes could accumulate without wearing appropriate respiratory protection. 

Consult your employer and OSHA regarding use of appropriate respirator for dangerous carbon monoxide 

gases. See Figure 7. 

 

  

EEnnggiinnee  eexxhhaauusstt  ccoonnttaaiinnss  

ppooiissoonnoouuss  ccaarrbboonn  

m

moonnooxxiiddee  ggaass..  Breathing 

it could cause death.

 

Operate machine in well 

ventilated area.

 

 

 

 

FFiigguurree  77  --  W

Waarrnniinngg  llaabbeell  --  eennggiinnee  eexxhhaauusstt  ccoonnttaaiinnss  ccaarrbboonn  m

moonnooxxiiddee  ggaass  

1111  

INTRODUCTION & SPECIFICATIONS

This tool creates an enormous amount of force.

Beware of crushing your fingers or other body parts.

SPECIFICATIONS

Waterworks

Division 

P: 866 987-7297  F: 813-621-7125  

Visit us at www.ussaws.com 

sales@ussaws.com

Part Number

US28000

Capacity

3”-10” Core Bits

Electrical Requirements

120V (minimum 15 Amps)

Motor

W24-230 9” Metabo Grinder

Dimensions

24”x 17”x 11”

Weight

65 Lbs.

Summary of Contents for CORE EZ

Page 1: ...rly maintaining the JS including the Honda engine or failing to correct a problem before operation could cause a malfunction resulting in a serious injury Always perform a pre operation inspection before each operation and correct any problem See Honda Engines Owner s Manual 5 2 Check the condition of the Honda engine See the section titled Before operation is your engine ready to go in the Honda ...

Page 2: ...tions have been read and understood by the operator before the operation of the equipment begins It is the responsibility of the owner user to understand and per form the maintenance and storage procedures as explained in the operating instructions TO PREVENT SERIOUS INJURY DO NOT OPERATE SAW WITHOUTPROPER TRAINING UNDERSTANDING OF THE OWNERS MANUAL WHEN OPERATING THIS MACHINE ALWAYS WEAR SAFETY A...

Page 3: ...HOUTPROPER TRAINING AND UNDERSTANDING OF THE OWNERS MANUAL WHEN OPERATING THIS MACHINE ALWAYS WEAR SAFETY APPROVED HEARING PROTECTION EYE OR FACE PROTECTION PROTECTIVE HELMET PROTECTIVE GLASSES OR FULL FACE PROTECTION WEAR HAND PROTECTION ntaining the JS including the Honda engine or failing to correct a problem before alfunction resulting in a serious injury Always perform a pre operation inspect...

Page 4: ... any loose objects nuts bolts etc Never run over any loose objects 4 4 10 KEEP CHILDREN AND VISITORS AWAY Do not allow anyone to stand in line with the blade path Do not let children or visitors contact machine or extension cord Keep children and visitors away from the work area 4 11 KEEP FIRM GRIP ON MACHINE During normal operation as instructed in Section 6 0 keep a firm hold on the handle grips...

Page 5: ...nt of sand quartz brick clay granite and numerous other minerals and rocks Exposure to excessive amount of such dust can cause Respiratory diseases affecting your ability to breath including chronic bronchitis silicosis and pulmonary fibrosis from exposure to silica These diseases may be fatal Skin irritation and rash and Cancer according to NTP and IARC National Toxicology Program International A...

Page 6: ...ontains Waterworks Division P 866 987 7297 F 813 621 7125 Visit us at www ussaws com sales ussaws com Hex Core Bit Adapter Grinder Coupling Guide Post Water Feed Tube Gearbox Carry Case Grinder 5 4 Mount hex core bit adapter to required size core bit 5 5 Install grinder onto gearbox Ensure that the pin is fully rotated into the locked position 5 6 Secure a water supply i e water tank water truck g...

Page 7: ...anchor pin 6 6 Adjust anchor point WARNING Always insure that the switch is in the OFF position before plugging the unit into electrical power CAUTION Never leave the drill running unattended Turn power off when not in use CAUTION Once the guide post is tight push and pull on it several times by hand to stretch and seat the anchor into its tightest position then re tighten the guide post Repeat th...

Page 8: ...place on the guide post 6 11 Turn on water Minimize water usage do not flood the cut with water Typical water consumption should be under 1 gallon per minute 6 9 Slide gearbox and grinder over guide post ensuring to engage the locking pin on hex drive 6 12 Hold down grinder trigger and turn advancing nut with a 3 4 wrench to core hole Waterworks Division P 866 987 7297 F 813 621 7125 Visit us at w...

Page 9: ... on the guide post similar to original tightening procedure Unthread guide post Remove core from hole WARNING Do not over reach maintain control Keep proper footing and balance at all times Maintain a firm grip Use extra care using the tool on ladders roofs scaffolds etc 6 10 DISASSEMBLY STEPS 6 11 TROUBLESHOOTING 6 10 1 STEP 1 Stop motor unplug unit from power and turn off water 6 10 2 STEP 2 Rem...

Page 10: ...ssaws com sales ussaws com Number Description Part Number 1 Water Feed Tube US28172 2 Grinder Coupler US28591 8 3 Guide Post US28152 4 Spring Locking Pin US28191 8 5 Spindle Nut 5 8 11 US28191 6 6 Core Mate Gear Box US28581 7 Hex Core Bit Adapter US28161 Core Mate 1 3 6 7 2 4 5 ...

Page 11: ... Number 1 Gearbox Top Housing US28581 1 2 Reverse Idler Pulley 29 mm US28141 16 3 Polychain Belt 425 25 US28111 11 4 Input Shaft US28111 5 Intermediate Shaft US28121 6 Polychain Belt 425 15 US28131 16 7 Reverse Idler Pulley 20 mm US28141 15 8 Hex Output Shaft US28131 9 Gearbox Bottom Housing US28581 2 Gearbox 1 2 3 5 4 6 8 9 7 ...

Page 12: ...t CBB0500M 6 x 165 Core Bit CBB0600M 7 x 165 Core Bit CBB0700M 8 x 165 Core Bit CBB0800M 10 x 165 Core Bit CBB1000M Part No Varies by size Description Flange set for use in vertical drilling applications to hold machine Angle Drilling Washer Part No US28273 Description Special washers for drilling at an angle Chain Wrench Part No US60410 2 Description Chain wrench Water Tank Part No US27810 1 Desc...

Page 13: ...tion to return merchandise under warranty must first be obtained from U S SAWS 9 1 3 6 U S SAWS reserves the right to inspect and make the final decision on any merchandise returned under warranty 9 1 3 7 U S SAWS offers no warranty with respect to accessories including but not limited to engines motors batteries electrical boards tires and any other parts not manufactured by us but which the orig...

Page 14: ...of the warranty registration card do not operate this machine before contacting U S SAWS at 866 987 7297 Verify the following before operating the equipment CHANGE OF OWNER OR NEW ADDRESS REGISTRATION CARD IMPORTANT To ensure that your U S SAWS machine is covered under warranty please fill in the following information and mail or fax it to U S SAWS 8004B E Broadway Ave Tampa FL 33619 Fax No 813 62...

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