The pitch-to-diameter ratio of the clamping nut thread has been selected that self-locking
occurs in the clamped state; i.e. the clamped state is retained.
To carry out a measurement run, the motor M1 is switched on but with the main shaft is free
to rotate. As the tie rod cannot be pulled any further to the left, the motor torque is transferred
to the main shaft via the clamping nut, thus accelerating the wheel for the measurement run.
After measurement, the motor is switched off and the solenoid brake decelerates the main
shaft.
To release clamping, the solenoid brake locks the main shaft again; the motor is switched on
in the reverse direction of rotation. The tie rod moves back to the right-hand starting position,
causing the clamping jaws to retract in the adaptor sleeve thus releasing the clamping
sleeve. As with clamping, motion is monitored by the encoder. Motor and brake are switched
of in succession.
Releasing a wheel from the power-clamping device in the event of a power
failure
Behind a 15-mm hole in the front of the cabinet closed by a black plastic cap, two pegs
project axially out of the big pulley. Take off the cap an insert a rod or screwdriver of 7 to 14-
mm width for a length of 130-mm. With the rod engaging in the pegs, rotation of the big
pulley is hindered.
By turning the wheel in the direction of rotation of a measurement run (the top of the wheel to
the rear) while inhibiting rotation of the pulley, clamping force will slacken. By further
turning at the adaptor flange, the tie rod is moved to the right-hand limit position so that the
clamping sleeve and the wheel can be removed. Finally, put back the black cap.
Seite 27 von 99
Summary of Contents for Snap-on Y2k
Page 1: ...SERVICE of the Y2k balancing platform Seite 1 von 99 ...
Page 2: ...The vibratory assemblies of the Y2k balancing platform L R L R S S M Seite 2 von 99 ...
Page 32: ......
Page 35: ...Seite 35 von 99 ...
Page 66: ...Seite 66 von 99 Figure 1 JBEG B9000 B9450 User Interface ...
Page 67: ...Seite 67 von 99 Figure 2 JBEG B9460 User Interface ...