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Maintain the demolition hammer by adopting a program of conscientious repair and maintenance in
accordance with the following recommended procedures. It is recommended that the general
condition of any tool be examined before it is used. Keep your tool in good repair Keep handles dry,
clean, and free from oil and grease. The following chart is based on a normal operation schedule.
Maintenance Interval
Maintenance Point
Daily before operating
Keep the vents clear of dust and debris.
Inspect the cord and have it replaced by an authorized
technician.
After the 60 hours of use
Check the brushes and replace as needed.
If you replace the brushes, run the hammer without load for 15
minutes to seat the brushes properly.
Troubleshooting
Use the table below to troubleshoot problems before contacting service personnel or your local
dealer. If the problem continues after troubleshooting, call your local dealer for assistance.
Failure
Possible Cause
Corrective Action
Hammer will not
start.
There has been a power supply
interruption.
Check the power supply or use
another.
Cable or plug is out of order.
Have an electrician check the cable or
replace it if necessary.
Carbon brush is worn out.
Take the hammer to the service
department to change the carbon
brush.
Not enough
impact.
The hammer needs to warm up.
Allow the hammer to warm up.
The grease is worn out.
Add the grease.
Not enough
power.
The hammer does not function
correctly.
Adjust the speed control to correct
position.
