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14 ► GR30 User Manual
STARTUP
At the beginning of each shift, or after a new wheel is
installed, run the grinder at operating speed for at least
one minute before starting work.
• Move the hydraulic system control valve to the ON
position.
• Slowly squeeze the trigger.
• Run the grinder at least one minute.
• Release the trigger.
If excessive vibration or any other defect is detected,
stop the tool immediately and determine the cause. Do
not use the tool until the problem is corrected.
GENERAL PROCEDURE
1. Grip the tool with both hands at all times during
start-up and operation.
2. Always start the grinder with the wheel away from
the work surface.
3. Make sure you have full balance before starting the
grinder’s plane of rotation.
SHUTDOWN
1. Move the hydraulic system control valve to the OFF
position.
2. Disconnect the hydraulic hoses from the tool: rst
the input (supply) hose, then the output (return)
hose.
3. Place dust plugs on the couplers, as applicable.
4. Wipe the tool thoroughly with a clean dry cloth.
5. Clean any foreign matter from the grinding wheel
surfaces.
CARE AND STORAGE
Clean and inspect the wheel and tool before storing.
GRINDING WHEELS
All grinding wheels are breakable. Exercise care in han-
dling and storage to prevent damage.
1. Clean used wheels to remove any dirt, debris, or
grease.
2. Inspect the wheel for chips, cracks, or other dam-
age. For maximum tool performance, replace the
wheel if it is worn or defective.
TOOL
1. Clean the tool to remove any dirt, debris, or grease.
Dry with compressed air or clean dry cloths.
2. Replace any damaged or missing safety labels and
tags before storing the tool. Otherwise, the tool
might be improperly used by someone who is not
familiar with the safety requirements.
3. Store the tool in a clean, dry, safe place.
OPERATION