Hofmann geodyna 9000p Manual De Operador página 48

4-22
A
B
C
5-17
48
Layout
4.5 Control Pedal
4.5.1 Command to the Main shaft lock
Fig. 4-22 Pedal of main shaft lock
The main shaft is locked when the pedal is depressed.
This facilitates tightening or untightening of the
clamping nut and retains the wheel in the correction
position for correct fi tting of the balance weights.
Note:
This lock is designed only to facilitate orientation
of the wheel and must not be used for braking the
main shaft.
The pedal also controls the Power Clamp, for clamping
the wheel on the balancer.
— Lift the pedal so as to clamp or unclamp the wheel.
— Depress the pedal to actuate the main shaft lock,
thus locating the main shaft.
By changing the mode of operation it is possible to
reverse the direction of actuation of the pedal.
4.5.2 Command for Clamping a wheel
Fig. 5-17
The main shaft lock pedal has two functions
A
PEDAL DOWN: Stopping rotation
PEDAL UP: POWER CLAMP lock
The pedal in addition to the brake has a control function
for the POWER CLAMP device, for clamping and
removing the wheel on the balancer.
Each time the pedal is moved UP, the Power Clamp
alternatively releases or clamps the wheel on the
balancer.
B
Power Clamp with jaws fully open.
C
Power Clamp with jaws fully closed.
Notes:
If the pedal is actuated once again during the
clamping process, clamping is interrupted and
the clamping jaws return to unclamped position.
Clamping can also be interrupted by operation of the
STOP or the ESC key.
With every balco P measurement can be started
only when the wheel is clamped and the wheel
guard closed.