Adjust clutch between lever and spindle
-
1. The end of the micrometer screw from the Cambridge Instruments Biocut 2030 microtome. An M3x12 screw in the cross hole to engage a 0.5" socket on a torque wrench.
-
2. A better option is to drill an M8 or 5/16" nut to fit over the end of the spindle. In the center of one side, drill and tap to fit an M3 setscrew.
-
3.The nut is fitted to the spindle and the setscrew is engaged in the cross hole.
-
4. Measure the torque at which the micrometer screw turns relative to the lever. Torque wrench in left hand. Lever held with right forefinger. When turning the wrench counter-clockwise, the clutch should release at
1 N·m.
-
5. Using an a 5 mm hex key and holding the end of the micrometer spindle, adjust the clutch. A right-handed turn tightens the clutch.
-
6. Repeat the torque measurement and adjustment until the clutch releases at 1 Nm torque. Can also be measured as 1.6 kg acting at the polymer insert at the end of the lever.
1. The end of the micrometer screw from the Cambridge Instruments Biocut 2030 microtome. An M3x12 screw in the cross hole to engage a 0.5" socket on a torque wrench.
2. A better option is to drill an M8 or 5/16" nut to fit over the end of the spindle. In the center of one side, drill and tap to fit an M3 setscrew.
3.The nut is fitted to the spindle and the setscrew is engaged in the cross hole.
4. Measure the torque at which the micrometer screw turns relative to the lever. Torque wrench in left hand. Lever held with right forefinger. When turning the wrench counter-clockwise, the clutch should release at 1 N·m.
5. Using an a 5 mm hex key and holding the end of the micrometer spindle, adjust the clutch. A right-handed turn tightens the clutch.