US SAWS Surface Preparation ◆ 877-817-6687 ◆ 11 High Street, Suffield, CT 06078 ◆ www.ussaws.com
Introduction
The Grinder-Vac is designed for simple operation and has been proven to be extremely useful and versatile.
A 7” diamond cup wheel or zec style abrasive disk may be mounted on the saw if it is rated and approved
for operation at 8,500 RPM. READ AND CAREFULLY FOLLOW THE OPERATION AND SAFETY INSTRUCTIONS
OF THIS MANUAL BEFORE USING THIS PRODUCT. Since safety regulations can vary between counties and
states, you must contact proper authorities and follow all appropriate regulations.
Important Safety Instructions
No person should attempt to operate this machine without first being trained in the operation of industrial
cutting and grinding tools. These instructions are not intended as a substitute for training experience. The
operator must observe safeguards that include, but are not limited to, the following:
•
DO NOT MODIFY ANY MACHINE FROM IT’S ORIGINAL DESIGN WITHOUT THE WRITTEN PERMISSION OF
THE MANUFACTURER. UNAUTHORIZED MODIFICATIONS CAN LEAD TO SERIOUS INJURY OR DEATH TO
YOURSELF OR OTHERS.
•
DO NOT use any cup wheel or grinding disk marked for less than 8,500 RPM.
•
DO NOT service the machine or change cup wheel or grinding disk without first disconnecting the
power.
•
DO NOT install a cup wheel or grinding disk before inspecting the part for damage.
•
DO NOT operate with a damaged cup wheel or grinding disk. A damaged cup wheel or grinding disk may
fly apart and cause serious injury or death.
•
DO NOT use a cup wheel or grinding disk that wobbles when mounted.
•
Verify cup wheel or grinding disk is correct for application before use.
•
Verify cup wheel or grinding disk rotation matches the direction arrow on the grinder motor.
•
DO NOT apply power to the machine before spinning the cup wheel or grinding disk by hand to check
alignment.
•
DO NOT operate with any loose nuts or bolts. Check all nuts and bolts for tightness.
•
DO NOT operate without appropriate eye, ear, foot, hand, and breathing protection.
•
DO NOT operate around any loose or foreign objects that may damage the system.
•
DO NOT operate if arbor shaft has excessive end play.
•
DO NOT grind material that the cup wheel or grinding disk is not designed for.
•
DO NOT operate machine near combustible material or fumes.
•
DO NOT operate without appropriate dust collection system.
•
DO NOT force cup wheel or grinding disk through material to be ground. Always ease cup wheel or grind-
ing disk through material.
•
DO NOT operate on not horizontal work surface.
Grinder-Vac Operating Instructions
Assembly of Dust Shroud Onto Grinder
1. Place dust shroud and adaptor around the grinder arbor.
2. Hose nozzle should be at upper right (when looking down on grinder)
3. Slowly tighten the 3 set screws on the adaptor ring in small increments. Make sure that the spacer
washer is centered around the blade nut. Tightening one screw all the way down before the other two
may cause interference.
4. Ensure the nozzle does not touch the handle mounting bolt. Leave 3/4” gap.
Assembly and Removal of Cup Wheel or Grinding Disk
1. Make sure power is disconneted.
2. Using the wrench provided, or a 1 1/2” box wrench, remove the blade nut.
3. Depress the spindle lock on the grinder to stop the spindle from rotating while tightening and
loosening the blade nut.
4. Note: both blade nut and arbor nut vary in length, depending on the type of wheel to be used.
