7
A
DIAGNOSTICS PROGRAMS
These programs serve primarily for repairing the circuit boards and should be used with
reference to the boards' circuit diagrams. We recommend using them exclusively for this
purpose; the service programs described above are generally sufficient for service staff to
identify malfunctions.
In case of need, the documentation for the diagnostics programs can be requested from
Corghi.
REMOVING THE WEIGHT-HOLDER LID
Remove in sequence:
-
mini-anvil;
-
diameter and distance sensor arm;
-
sensor arm support disk (A in the
figure);
-
four bolts securing the weight-holder
lid;
-
remove the weight-holder lid taking
care not to stress the sensor rod.
Refit the parts in reverse order, making
sure to check that:
-
the sensor lever touches only the support disk in standby, without touching the weight-
holder lid;
-
the support disk (A in the figure) does not touch the weight-holder lid.
MBE161 MOTHERBOARD UPDATES
A portable programmer "
PRG161
" is required to update the control unit (MBU) of the
MBE161 motherboard. The firmware is stored in a special memory card (
MEMSTICK
),
which inserts into a slot in the PRG161.
For the use of the programmer and hence also for programming the MBE161 motherboard,
refer to the PRG161 programmer user manual.
REPLACING THE INSIDE SENSOR (DISTANCE AND DIAMETER) REED
MICROSWITCH AND ENCODERS
To ensure correct wheel size measurements, the inside sensor must be mounted in such a way
that its aluminum mount is perfectly supported by the block (to which are mounted the
central unit's leaf springs) and the inside pickup leaf spring.
The reed sensor which sets the standby position must also be correctly adjusted.
Function 98 displays the encoder signals.
Replacing and adjusting the reed microswitch
In case of replacement or disassembly of
the microswitch, its trip distance must be
adjusted.
The setting is correct when:
-
when the sensor arm is moved 2.5
mm away from the standby position,
the microswitch is open;
