Ransburg 9060 HV P.S. Electric Motor 80102-21X - Manual (Page 27)

9060 for No. 2 Process Handgun - Maintenance
CP-13-03.2 22
2. Remove the high voltage (HV) cable from
the power supply.
3. Open the cabinet door and position
jumper J8, shown in Figure 11, on the
main PC Board so that it covers (shorts)
both terminals.
4. Attach the appropriate HV cable to the
Test Probe (76652-01), properly ground
the probe to a true earth ground and turn
the Test Probe Meter on (see Operation
Manual of 76652-01 Tester).
5. Insert the Test Probe HV cable into the
Power Supply HV Tube until it bottoms
out.
6. Turn the power supply ON.
7. Read the output voltage displayed on the
meter, then turn the power supply OFF.
If the voltage DOES READ correctly (see
“Specifications” in the “Introduction”
section of this manual), the problem is
not in the Power Supply, therefore the HV
Cable and spray gun should be checked
for the cause. If the voltage DOES NOT
READ
correctly, the problem is with the
power supply. Consult the
“Troubleshooting Guide” to locate the
specific problem.
8. Disconnect the Test Probe (76652-01)
and reposition jumper J8 so that it covers
only one terminal. When ready to
resume spray operations, reconnect the
spray gun HV cable and turn the power
supply on.
Bench Testing
Equipment Required:
Volt/Ohmmeter
The
“Troubleshooting Guide” provides
information for troubleshooting the power
supply when improper operation is obtained
and the problem has been traced to the
power supply. Proper troubleshooting
should ONLY be accomplished with specific
test equipment by qualified electronics
technicians or authorized Ransburg repre-
sentatives.
Before troubleshooting, ensure that the
power supply is plugged into a live outlet of
appropriate voltage. All electrical measure-
ments in the “Troubleshooting Guide” are
nominal and may vary as much as ±10%
depending on the test conditions and the test
equipment used. Refer to Figure 18 for
location of parts called out in the
“Troubleshooting Guide”.
For bench testing, jumper J8 should be used
to trigger the high voltage output (see “KV
Test Jumper” previously discussed in this
section).
Diagnostic LED’s
There are two diagnostic LED’s located on
the relay board. LED1 is a green LED that
indicates 24 VDC input is being received
from power supply 2PS. LED1 should be lit
whenever the power supply ON/OFF switch
is ON. LED2 is a red LED that indicates 24
VDC is being output to the gun motor. LED2
should be lit whenever the toggle switch at
the back of the gun is turned ON.
Whenever removing high voltage cables
from equipment, ground the plug end of
the cable(s) by contacting the plug to elec-
trical ground. DO NOT touch the plug until
it has been grounded. This will eliminate
the possibility of residual charge causing
electrical shock.
! W A R N I N G
Ensure that the Test Probe HV cable
makes good contact both inside the Test
Probe and inside the Power Supply HV
Tube.
N O T E