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USER MAINTENANCE & TROUBLESHOOTING
Below are instructions on care and maintenance of your polisher. You can also visit our website at www.hos-usa.com for tutorials and video instructions
on proper tool care and maintenance.
How To Maintain Your Orbot Micro
Be sure the polisher is disconnected from the electrical supply before any inspection or maintenance is performed.
1) Lubricate the upper motor bearing
After every eight hours of use, lubricate the upper motor bearing by placing 3 drops of light
machine oil (e.g. 3-in-1 oil) in the center of the bronze bushing found at the top of the
motor housing.
2) Clean your tool of dirt, fiber, and other debris by blowing it out with compressed air.
Every eight hours of use, or as conditions warrant, blow out the motor housing with
compressed air to clean out any accumulated dust or dirt. If the tool is being used to clean
carpets, be sure to blow out the motor housing after every use. If tool should get wet, be
sure to blow dry the underside of the tool.
3) Inspect your carbon brushes.
Every forty hours of use, or as conditions warrant, The carbon brushes in your polisher are
wear items and periodically will need to be replaced (after 50 to 150 hour of use). The carbon
brushes that are used in your polisher will shut off the polisher when they need to be replaced.
Refer to the images in Table 2 (below) for examples of good and worn parts. Since brushes are
wear items, we recommend that you keep a spare set of brushes.
If Your Orbot Micro Fails to Run
Be sure the polisher is disconnected from the electrical supply before any inspection or maintenance is performed. The motor is only for the voltage specified on the nameplate.
Voltage should not vary more than 10% over or under the voltage shown on the nameplate. Although the Orbot Micro is built to last a lifetime, it can encounter problems from
heavy wear and tear. All problems are repairable, and can most often be repaired by a mechanically inclined technician or user
1) If your polisher fails to run, unplug it from the outlet or power source.
a) Check your power cord plug for bent prongs that could be preventing proper contact with the outlet.
b) Check your power cord for areas of worn or cracked insulation. If any of these are noted, DO NOT CONTINUE TO OPERATE the tool. IMMEDIATELY contact
HOS USA or your dealer to have your tool repaired and serviced.
c) Check your source of power for blown fuses or open circuit breakers in the line. Also verify that your power source is providing adequate voltage and current to safely
operate your polisher. Use a volt meter if able.
2) If your polisher starts to arc, experiences a loss in torque, runs hot to the touch or has stopped during operation:
a) Turn off your polisher and DO NOT CONTINUE TO OPERATE the tool. Continuing to use your tool may cause further damage by creating a short circuit in the motor
windings. Unplug your polisher from the outlet or power source, and proceed through the following steps or contact HOS USA or your dealer to have your tool repaired
and serviced:
3) Clean your tool of dirt, fiber, and other debris by blowing it out with compressed air.
a) This is recommended maintenance for every 8 hours of operation or as conditions warrant. Pay particular attention to the area around the carbon brushes’ contact with
the motor, just inside the top of the motor cover. If tool is being used on carpets or with wool pads/bonnets, it is recommended to blow out your tool after every use. If the
tool should get wet, also blow out the underside of the tool. If the tool has gotten wet, you may need to allow the tool to completely dry before you are able to completely
blow out all the fibers and other debris.
4) Check the carbon brushes, brush holder and brush holder caps.
a) The carbon brushes in your polisher are wear items and periodically will need to be replaced (after 50 to 150 hour of use). The carbon brushes that are used in your
polisher will shut off the polisher when they need to be replaced. Never operate your polisher with chipped or cracked brush holder caps. Refer to the images to the
right for examples of good and worn parts. You may also refer to the “Instructions for Inspecting and Replacing the Brushes and Brush Holders” at www.hos-usa.com
for instructions on removing, inspecting and replacing the brushes and brush holders in your polisher as well as inspecting and cleaning your brush holder caps. Since
brushes are wear items, we recommend that you keep a spare set of brushes. Please note that some specialty tools are required for replacing the brush holders. It is
recommended that you have HOS USA or your dealer perform this service.
5)
Inspection of the brush holder caps.
a)
WARNING:
Never operate the polisher with chipped or otherwise damaged brush holder caps.
b) Be sure the power cord is disconnected. Using a screwdriver, remove the damaged brush holder cap and the
carbon brush and spring, with a cotton Q-tip wipe the threads on the inside of the brush holder clean of any
foreign matter, replace the carbon brush and spring and screw on a new brush cap.
TABLE 2: VISUAL INSPECTION OF THE CARBON BRUSH HOLDERS AND CARBON BRUSHES
Good Brush Holder Bad Brush Holder (photos and illustration) – Look for
New Carbon Brush
Worn/Bad Brush –
scarring or marking on the surface of the carbon brush too short to use
holder. These may be electrical shorts.
6) If the previous steps have not enabled you to determine the problem, please return your polisher to HOS USA or your dealer for a complete diagnosis. Follow the return
instructions on the next page!
ANY OTHER SERVICING SHOULD BE PERFORMED BY THE FACTORY OR AN AUTHORIZED HOS USA SERVICE CENTER.
