Varimixer ERGO100, Operating Instructions Manual

Page: 18 / 24

18
CC
F
dL
Fig. 2. Belt tension.
t
o rePlaCe a lIftInG aCtuator
:
Lift the bowl arms to the top position.
Lower the bowl arms to a pressure relief point set at ap-
prox. midway.
It is very important that the bowl arms are
lowered to a pressure relief point before dis-
assembling the lifting actuator.
Cut the power to the machine by removing the plug from
the socket.
Remove the three plugs for the reed contacts on the actuator.
Remove the lifting actuator from the bowl arms by remov-
ing the pins and axle.
Remove the cotter pin that secures the actuator at the top.
Remove the cable to the actuator and lift the actuator out
from the mixing machine.
Install the new actuator.
Connect the machine to the power supply.
t
o rePlaCe a belt
:
The old belt can be removed by loosening the belt tight-
ener.
Installing a new belt:
1. Place the belt in the wheel groove.
2. Tighten the belt using the belt tightener
3. Tighten the belt until the belt can be bent approxi-
mately 9 mm
(dL) at a pressure of approx. 9 kg (F) ,
see Fig. 2 .
4. Run the machine with a regular production load for
approximately 10 min.
5. Check the belt tension by measuring its elasticity. If
the elasticity has changed, retighten as described in
point 3.
The belt tension should be checked every 6 months.
If there is not enough belt tension, the belt will wear out
quickly, and if there is too much tension, there is a risk that
the life-span of the bearings will be considerably short-
ened.
If replacing the lowest actuator fittings, use Lochtite 270 to
tighten the fittings
.
Then follow the section “Fine-tuning the reed contacts
and CE microswitch” on page 19 .
The lifting actuator has 3 proximity detectors (reed con-
tacts) that check the position of the bowl.
r
ePlaCInG the
r
eed ContaCtS
:
Remove the incorrectly charged contact and install the
new contact according to
Fig. 3 . Connect the cable as
shown in the illustration on page 14 .
Follow the instructions below to secure the reed contact in
the correct position.
f
Ine
-
tunInG
r
eed ContaCtS and
Ce
mICroSwItCh
:
Check that the location of the reed contacts matches up
with the marks in
Fig 3 .
Connect the reed contacts with the matching cables – see
illustration on
page 14 .
Adjust the three contacts and the CE microswitch accord-
ing to the following sequence:
1. Adjusting the top reed contact:
Contact A determines the top position of the bowl.
The contact must be positioned in accordance with the
mark in
Fig. 3 .
Raise the bowl to the position corresponding to mark X,
Fig. 5 .
Adjust the top reed contact upwards until the reed LED
lights up – it is important to stop adjusting once the LED
lights up!
2. Adjusting CE-microswitch:
ERGO60 and ERGO100 , se Fig. 4 , page 19 .
ERGO140 and AR200 , se Fig. 4a , page 19 .
3. Adjusting the reed contact for the JOG function
Contact B determines where the machine’s JOG function
starts, see also “Bowl lifting and JOG function” on page 3.
The contact must be positioned as shown in Fig. 3 and
does not require any further adjustment.
4. Adjusting the bottom reed contact:
Contact C determines the bottom position of the bowl.
The contact must be positioned in accordance with the
mark in
Fig. 3 .
Raise the bowl to the position that corresponds to mark Y
in Fig. 5 .
Adjust the bottom reed contact until the reed LED lights
up – it is important to stop adjusting once the LED lights
up