EQ 2100
Tableau T8.2. Types of SWI procedures available
SWI mode
When it's or when it can be
run
Automatic
At the end of every launch Machine
Low speed
At the end of the launch,
when
stationary and the wheel
guard is raised
Manual
At the end of the launch
by manually rotating the
wheel with wheel guard
raised
The three SWI modes have functions that are slightly different one from the other although, in all modes,
the ultimate goal is to block the wheel at an angular position of imbalance and make operators' tasks
quicker.
Automatic SWI procedure
During the automatic SWI procedure, the machine will measure rotational speed during braking at
completion of the launch and, when this reaches a predetermined value, it will release the brake allowing
the wheel to spin freely by inertia. When the speed is low enough, the machine will wait until the wheel
passes through one of the angular positions of imbalance, therefore, it will enable the electromagnetic
clamping brake. Note: for operator safety purposes, the SWI procedure will not be run when the MOTO
Wheel Type is enabled.
SWI procedure at low speed
In the low speed SWI procedure, the wheel has already run the launch and is stationary. If the operator
presses [P8] Start with the wheel guard raised, the machine will apply slight acceleration to the wheel
and then let the same spin by inertia. When the speed is low enough, the machine will wait until the wheel
passes through one of the angular positions of imbalance, therefore, it will enable the electro- magnetic
clamping brake. Note: for operator safety purposes, the SWI procedure will not be run when the MOTO
Wheel Type is enabled.
Manual SWI procedure
In this mode, the SWI procedure is activated by manual rotation of the wheel if the wheel crankcase guard
is raised. When the wheel passes through an angular position of imbalance, the machine will enable the
electromagnetic clamping brake.
Angular positioning accuracy depends on many factors. Among the most important, they are: wheel di-
mensions and weight, adjustment of the electromagnetic brake, temperature, belt tension.
In all cases, consider the following:
• If the electromagnetic clamping brake is disabled, the SWI procedure will not be run in any of three
modes;
• In the automatic SWI procedure, the wheel must be heavy and large enough to provide the inertia
required for the running of this procedure. In case of particularly light and/or small wheels, the machine
might not run the SWI procedure and will use conventional braking;
• If rotation speed decreases abruptly due to wheel inertia during the automatic SWI procedure or the low
speed SWI (e.g. due to excessive friction with rotating mechanical parts), the machine applies a little extra
acceleration to the wheel itself in order to reach the first angular position of imbalance. If, despite this, the
wheel does not reach this position, the SWI procedure is aborted after 5 seconds and a triple beep will
signal this condition;
• When you use the manual SWI procedure, balancing precision will also depend on the speed with which
the operator rotates the wheel: excessively high or low speeds reduce accuracy.
70
AUTOMATIC WHEEL BALANCER 3D DIGITAL DISPLAY
+LASER POINTER
Who can run the SWI
procedure
Operator
the
wheel
is
Operator
Notes
This is performed only if there is at
least
oneimbalancevalueonthewheel.
Otherwise, conventional braking will
occur.
Procedure started by pressing [P8]
Start: the wheel starts spin- ning at low
speed until the first angular position of
imbalance is reached.
At each passage of the wheel in an
angular position of imbalance, the
electromagnetic clamping brake will be
enabled for 30 seconds.