Ensuring Proper Clutch Performance

Symptoms
Clutch will not slip, seized. Clutch is slipping too much.

Solution Steps

Free the slip clutch after prolonged storage or in humid conditions

The slip clutch linings draw moisture when stored. The linings may bond to metal parts. Ensure the slip clutch can rotate freely and will slip by placing a chalk line across the spring plate and hub. Run at 1400-1500 RPM and engage the PTO for 2 -3 seconds allowing the clutch to slip. After repeating 3 times, check to make sure the chalk marks DO NOT align after all moving parts have stopped.


Ensure the set screws are fully backed out (MX8, MX10, HX10, HX14)

Turn OUT (counterclockwise)


Ensure the disk spring has the concave side facing away from the yoke end

Check the gaps on the clutch
-MX5 & 6 have a clutch plate to spring gap of 4MM
-MX7 has a clutch plate to spring gap of 5.7MM
-MX8, MX10, HX10 & HX14 have a ring to spring gap of 1MM

Do not stop the PTO when the clutch slips under use

When the clutch does slip, raise the cutter and allow the disks to cool. If the cutter is abruptly stopped or the disks are not allowed to cool, the clutch linings will become glazed.


Storing the cutter (MX8, MX10, HX10, HX14)

Turn the 4 set screws all the way in against the clutch plate. This pushes back the belleville spring and relieves the pressure on the friction disks.

Affected Equipment
MX Rotary Cutters       HX Rotary Cutters    

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