Troubleshooting. WerkMaster THE EDGE, RASP

Below you will find brief information for Floor Sander RASP, Floor Grinder THE EDGE. The RASP sander is designed to meet the needs of contractors, facility services, equipment rentals, and DIYers. The RASP can easily remove glue, wax, varnish, shellac, and aluminum oxide factory finishes. Use the RASP on engineered hardwood, solid hardwood, wood decks, plywood subfloors to sand and edge. The EDGE grinder is designed to meet the needs of contractors, facility services, equipment rentals, and DIYers. The EDGE can be used to grind and polish concrete. Use the EDGE to grind and polish concrete.

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TROUBLESHOOTING

ISSUE

Machine will not turn on.

VFD turns on but machine will not start.

TEST SOLUTIONS

Check all power connections. Make sure the source power meets the machine’s minimum power requirements (see

Power Cord Minimum Requirements p. 5).

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Plug in the machine.

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Check to see if any breakers or fuses are tripped or blown.

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Check to see the handle activation lever is not depressed.

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Have a qualified electrician test the source power to see if it meets the machine’s minimum power requirements.

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Press START button while activation lever is depressed.

Check the VFD display for error codes

(see Appendix p. 14).

Machine runs for a short time and then shuts down.

Check the circuit breaker to see if it is tripped or the fuse if it is blown.

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If no error code is displayed, check if the control cable is plugged into the machine.

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If the VFD error code is “low voltage” have a qualified electrician test the source power and make the necessary adjustments to the wiring to supply the machine with its required input power.

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Check to make sure that the power source has the appropriately sized breaker or fuse to meet the machine’s minimum power requirements.

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Make sure the generator meets the machine’s minimum power requirements.

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Have an electrician perform a voltage test while the machine is under load to see if the voltage drops below the machine’s minimum power requirements.

Pad drivers are not turning or only one pad driver is turning.

Disconnect the power and tilt the machine back. Spin one pad by hand.

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If the pad turns independently, replace the secondary belt. Go to www.werkmaster.com/support.

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If all pad drivers turn but the motor fan does not turn, replace the primary belt. See Repair & Maintenance videos at www.

Werkmaster.com.

Not all discs are grinding the floor.

Disconnect the power and tilt the machine back. Visually inspect each pad driver height against the adjacent pad driver.

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Make sure all pad drivers are seated properly on the shafts.

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Make sure grinding / polishing / sanding media is seated properly on the pad drivers.

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Make sure grinding / polishing / sanding media is worn evenly and change out any media if uneven.

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Make sure compression foams are positioned around the bumpers

Excessive noise or vibration is felt or heard while running the machine.

Tooling becomes dislodged from the machine while operating.

The machine handle malfunctions.

Disconnect the power and tilt the machine back. Spin one pad by hand.

Listen for a clicking sound or grit-like feeling.

Disconnect the power and tilt the machine back. Remove and inspect all tooling. This includes the pins, tooling plates, and pad drivers.

Check the handle plug to see if it has come loose.

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Check that all tooling is in the correct pin holes on the pad drivers.

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Replace the bearings. Contact technical support: 866-373-9375 for instructions.

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If the pin holes are excessively damaged, replace the pad drivers.

If the grommets/bumpers on the pad drivers are damaged, replace the damaged parts.

If the pins on the diamonds or tooling plates are damaged or missing, replace the pins.

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Secure the handle plug. If the handle controls are still malfunctioning, contact customer service for instructions.

VFD makes popping noise and starts to smoke.

***Disconnect power

immediately!***

Wait for 1–2 hours, then remove the VFD cover and check electronic components for discoloration, scorching, or swelling.

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Contact a dealer or technical support: 866.373.9375.

VFD screen displays error message or unusual screen display.

Look up the message in the Appendix.

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Contact technical support: 866.373.9375.

Page 13

Key features

Lightweight & easy to maneuver
Variable frequency drive lets you run at speeds from 400 RPM to 1000 RPM
Features 3HP 220V high efficiency motor (available with 1.5 HP motor)
Edge to within 1/8” (3 mm) of the wall
Disassembles for easy lifting and transport

Frequently asked questions

The minimum requirements for power cords are listed in the Power Cord Minimum Requirements table on page 4 of the document.

Follow the steps outlined in the Changing the Primary Belt section of the manual. Disconnect the power and ensure the handle is in the upright position.

To adjust the handle, pull the pin (H) on the handle, adjust the handle to a comfortable operating position, and then release the pin. Failure to check the pull pin is fully engaged could result in damage to the machine or personal injury as the handle could release unexpectedly when the machine is being operated or tilted back.

The RASP and THE EDGE can be operated on 110V with a Quick 220 Adapter. You can connect two 110V cords from the Quick 220 into the 110V wall outlet on two (2) separate circuits on opposite sides of the panel. Plug the WerkMaster machine into the Quick 220 adapter.