Sun Microsystems SWB 300, Руководство оператора

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54
5-28
5-29
5-26
Operation
5.10 Behind–the–spokes
placement (
SWM
)
When spoked wheels are balanced, the behind–the–
spokes placement mode (also called split weight
mode) allows balance weights which would have to be
fi tted between two spokes according to the measured
unbalance (hence would be visible from outside) to be
placed in hidden position behind two spokes adjacent
to the unbalance location (see example,
Fig. 5-26 ).
After a measuring run the electronic unit calculates the
behind–the–spokes placement automatically and gives
the relative balance weight locations.
The operating steps for the behind–the–spokes
placement mode (SWM) are described and illustrated
below.
5.10.1 Split Weight Mode (SWM)
Selecting is possible only after balancing a HWM wheel
that has an imbalance in the right plane;
≥
10 gram
Note : The “fine” read-out accuracy is not
available with this mode.
Select this mode to “hide” the right plane weight behind
the two spokes that are nearest to the calculated weight
application position. That way, the weights are not
visible from “outside”.
•
Perform a wheel measuring run in HWM mode
(Alu2P or Alu3P).
•
Apply the weight in the left plane of an HWM wheel.
•
DO NOT apply the weight in the right side plane,
but select the *-key.
The display now equals ( Fig. 5-28 ) (the weight
position and HWM indicators depend on the ALU
mode selected). The * indicator will be on and the SWM
indicator will blink
Note : If the SWM indicator does not blink, check
if the unit is in HWM mode.
•
Select Enter to run this mode.
The * indicator goes off, a short beep will be heard and
the SWM indicator will light permanently.
The SWM mode is now active.
The display on the left shows “HSP” whilst the display
on the right indicates the number of spokes
(Fig. 5-29) .
The position of the two weights divided, on the right
plane, are set by the unit based on the number of
spokes and the position of at least one of the spokes,
as entered by the user.
•
Count the spokes of the rim and set the number
with the + and - keys.