MANATEC LX WB-VL-65 DSP, Service Manual

Page: 23 / 61

Ref.: WB-VL-SM Ver.1 3.doc
20
For Truck -
use a fairly balanced wheel with Rim dia of
20
”-24”. Unbalance should be 50gm min.
For Car -
use a fairly balanced wheel with Rim dia of
12
”-16”. Unbalance should be 30gm min.
Use / keys to move to next parameters.
If empty shaft unbalance is more,
“Spindle unbalance is beyond limits
for calibration
” error message will be displayed. Stop Calibration and
call Authorised Service personnel
DO NOT use Wheel with Re-treaded tyre or Wheel with more runout
for calibration
TYRE ZERO
Enter the Wheel parameters as explained in Chapter 7.4.1 of Operating
manual and then press key to go the TYRE ZERO screen.
Fig. 34
Press key twice to run the wheel. SA & SB Sensor values will be displayed
(in millivolts) in respective window & goes to OUTER CALIBRATION screen.
To know the millivolts of Raw calibration after completing Tyre zero,
press key to go to RAW CALIBRATION, run the wheel to view
millivolts of SA & SB displayed for the Calibration weight added
If “Tyre unbalance is beyond limits for calibration” error message is
displayed, press key to clear the message and ensure wheel
mounted is with minimum unbalance
To know the millivolts of Tyre unbalance if error is displayed, press
key to go to RAW CALBRATION, run the wheel to view millivolts of
SA & SB displayed
Fig. 35
Add Calibration weight (75gm for Car & 300gm for Truck) in the indicated
position (12 ‘o’ clock) & rotate the wheel manually to bring the added weight to
TDC (Top Dead Centre).
Ensure that the Calibration weight is exactly at 12 'o' clock position.
Otherwise wheel balancing will be severely affected