BUG-O Systems AGS-4000 - Manual (Page 39)

39
ARC GOUGING MODULAR DRIVE TROUBLESHOOTING GUIDE, (CONT’D.)
PROBLEM POSSIBLE CAUSE TEST BASE SYSTEM TEST PROCEDURE / REMEDY
Speed display is not Power switch is OFF. 1A Turn ON the main ON/OFF switch located in the power entry
lit and tractor does module. (see Figure 1)
not run.
No power to machine. 1B Verify the power cord is OK and the correct voltage exists at the
outlet.
Blown fuse. 1C Unplug the power cord. Check the machine’s power input
fuse(s). The fuse(s) is located in the power entry module and is
accessible without opening the case.
Faulty accessory 1D Remove any accessory plugged into the master drive accessory
attached to the port (see figure 2). Plug in the power cord and turn on the main
master drive power.
accessory port.
a) If the speed display does not light, proceed with test 1E
b) If the speed display lights, install the connector cover on
the accessory port. NOTE: FAILURE TO INSTALL THE
CONNECTOR COVER ON THE ACCESSORY PORT
AFTER COMPLETING THIS TEST MAY CAUSE
SERIOUS INJURY FROM ACCIDENTAL ELECTRICAL
SHOCK.
Set the tractor for continuous forward motion at full speed.
If the control module has any type of motion enable
switch, turn it to enable.
1) If the tractor does not work properly, proceed with step 2A.
2) If the tractor operates correctly, the accessory removed
from the accessory port is defective.
Faulty power entry 1E Remove the connector cover or any attached accessory from the
module. master drive accessory port (see Figure 2). Verify the power line
voltage is on the two outer pins of the three pin connector (see
Figure 2). The center pin is chassis ground.
NOTE: INSTALL THE CONNECTOR COVER ON THE
ACCESSORY PORT AFTER COMPLETING THIS TEST.
FAILURE TO INSTALL THE COVER MAY CAUSE SERIOUS
INJURY FROM ACCIDENTAL ELECTRICAL SHOCK.
If the voltage is not present, rerun tests 1A, 1B, 1C, 1D and 1E.
A second failed 1E test indicates bad internal AC wiring or a
defective power entry module. Open the master drive case (see
Figure 3). Examine the AC wiring and rewire at fault or replace
the power entry module assembly. NOTE: The replacement
power entry module is provided with the accessory port’s three
pin AC connector prewired.