DTF Parts Store • Repair supportInstallation & troubleshooting
View safety steps and replacement checks
Know what to check, how to prepare safely, and what your technician should verify for this shaft coupling. Machine layouts and wiring vary by model.

Shaker Motor Shaft Coupling — 6mm × 6mm
Match before replacing:
Both shaft bores • length • shaft fit
The motor runs but the driven shaft does not move correctly, or the drive makes abnormal vibration or noise. Binding elsewhere can also damage a coupling.
Safety first — before access or repair
Follow the machine’s shutdown procedure. Isolate all power sources and prevent restart using the approved lockout procedure. Control stored energy and let heaters cool fully. An authorized person must verify isolation before work starts. The power button or emergency stop alone does not isolate electrical energy.
Electrical work, heaters and safety controls require a qualified technician. Never work inside a live cabinet, bypass guards or safety devices, or reach into moving rollers or fans. Follow the machine manual and powder/ink safety data sheet for required protective equipment.
Stop & isolate
Shut down, isolate supplies, prevent restart, control stored energy and verify the machine is safe to access.
Inspect & match
With the drive isolated, inspect for a cracked coupling, loose set screws or shaft misalignment. Do not rotate the drive by hand unless the machine service procedure permits it.
Replace correctly
A technician should support the drive, remove the old coupling using the machine procedure, align the shafts and fit the correctly sized coupling. Use the coupling maker’s shaft insertion, gap and screw-torque specifications.
Verify operation
Restore the guard before a controlled drive test. Stop for wobble, vibration, rubbing or slippage; never adjust a moving coupling.
Stop and get help if…
You find burned wiring, repeated breaker trips, damaged safety controls, uncontrolled heating, ink on electronics, a mismatch in ratings, or a diagram that does not match the machine. Keep the machine out of service until a qualified technician resolves the fault.
What to send for model-specific help
Send the machine model and serial label, a clear photo of the original component and its markings, your symptom, and the relevant service-manual page. Take internal photos only after safe isolation by an authorized person. Do not unplug or move wires just to photograph them.
Need the procedure for your machine?
Send your model and original part photos so we can help confirm compatibility and the correct service reference.
Get part-specific help →This is a service planning overview. Use the exact machine and component manuals for removal, wiring, torque settings, calibration and commissioning. It is not a model-specific wiring diagram.
