10
Adjustments of speed (low and high speed cam disks) VL-1S:
Prior to any adjustment the bowl must be in its top position and the safety guard must be closed.
Switch off the power to the mixer, this must be done via the emergency stop. Remove the top lid of the mixer.
Dismantle the shaft for speed regulation: The arm
(Fig. 5)
(B)
is released from the servo motor shaft by removing the
cotter pin
(C)
and the pin
(D)
. The arm
(B)
must not be loosened from the shaft
(E)
.
Loosen the screw
(F)
and take out the speed indicator
(G).
Loosen the screw in the speed indicator clamp
(H)
and remove the disk with arrow
(I)
The manual speed selector handle
(J)
is placed in the shaft
(E)
so that it points upwards and forwards.
Release the emergency stop and start the mixer.
Turn the handle for manual adjustment of speed to minimum speed until the distance from the V-belt to the edge of the
planetary head pulley is approximately 1 mm. see
fig. 5a.
Stop the mixer by pressing emergency stop.
Loosen the two screws on the two cam disks
(K)
and
(L).
Turn the cam disk for minimum speed
(K)
until it is activating the micro switch. Tighten the screw.
Release the emergency stop and start the mixer.
Turn the handle for manual adjustment of speed to maximum speed until the distance from the V-belt to the edge of
the motor pulley is approximately 3 mm.
see fig. 5b.
Stop the mixer by pressing emergency stop.
Turn the cam disk for maximum speed
(L)
until it is activating the micro switch. Tighten the screw.
Remove the manual speed selector handle.
Remount the servo motor shaft on the arm
(B)
. It is important to make sure that the servo motor is not clamped against
the machine column, the shaft
(E)
or other parts of the mixer.
If the servomotor is not positioned correctly (according to the description above), the two screws
(M)
and
(N)
that fix
-
ates the arm on the shaft are loosened and the arm adjusted. Now the handle for manual speed adjustment has to be
mounted again and the cam discs must be adjusted once again.
When the min. and max. speed has been adjusted correctly, the speed indicator clamp, the disk with arrow and the
speed indicator are remounted.
Cam disks for minimum and maximum speed have now been adjusted.