Weaver W-957-40, Operation Manual

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7.3 PRESS SENSOR INSTALLATION AND WIRING
Sometime, the troublesome of inaccuracy of balancing and position if because the damage of
the press sensor. The method to change the press sensor is shown in the following:
●
Demount the upper cover and right side panel of the wheel balancer.
●
Remove the nut 1&2, elastic washer, sanding washer and plain washer.
●
Loose the nut 3, 4 and 5 to disassemble each part.
●
Change the new sensor and mount the double head screw and tight the nut 5.
●
Use the spanner to tight nut 4 slightly and then tight nut3. At this time, pay attention that the
horizontal and vertical sensor screw should to perpendicular to each other. The end of the
screw should fall into the center of the hole with the gap of at least 1mm.
●
Mount the plain washer, sanding washer, elastic washer and nut1 and 2. It must be
completely tight. Generally speaking, you should fix the nut1 first and then nut 2.
）
●
There is the glass glue protective coating on the pressure sensor.
●
Short cut connect of press sensor output cable to discharge and then plug the cable
discharged into the computer board to avoid the high voltage to break down the computer
board.
●
Plug the sensor plug according to the original position.
●
Calibrate the balancer once again and mount the upper cover and side panel.
After change the computer board, phase sensor or the press sensor, you must execute the
self-calibration. In the process to change the computer board, you should setup the parameter
according to the parameter marked in the machine or the original board. You must
self-calibrate after changing
7.4 GENERAL TROUBLESHOOTING & SOLUTION
：
Description Cause Solution
Start the machine
but not display.
1. Check the circuit of 220V
is normal or not.
2. power board fault
3. The cable between the
power board and computer
1. Check and connect the external power
source.
2. Changer the power board
3. Check the plug cable
4. Change the computer board