Ransburg 9040 Classic HV Power Supply 76447 - Manual (Page 27)

CP-97-02.5
9040 Classic for REA & M90 Systems - Maintenance
2 4 2 4 2 4 2 4 2 4
Bench T Bench T Bench T Bench T Bench Testing esting esting esting esting
Equipment Required: Equipment Required: Equipment Required: Equipment Required: 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 ITW Ransburg representatives.
Before troubleshooting, ensure that the power
supply is plugged into a live outlet of the appropriate
voltage. All electrical measurements 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
Figures 6 and 9 for location of parts called out in the
"Troubleshooting Guide" in this section.
For bench testing, jumper JP4 should be used to
trigger the high voltage output (see "PC Board
Test Jumper" discussed at the beginning of the
"Maintenance" section).
SERVICE LEVEL SERVICE LEVEL SERVICE LEVEL SERVICE LEVEL SERVICE LEVEL
Personnel who service this unit must be qualified
electronics technicians. Replacement parts are
designed to be made at the assembly level. (See
the "Parts Identification" section of this manual for
replacement assemblies and part numbers.)
> The High Voltage Multiplier and high
voltage cable contain significant capaci-
tance that will store charge. ALLOW
ALLOW ALLOW ALLOW ALLOW
approximately 10 seconds for this charge
to bleed off BEFORE
BEFORE BEFORE BEFORE BEFORE opening the cabinet
door OR REMOVING OR REMOVING OR REMOVING OR REMOVING OR REMOVING the high voltage
cable from the power supply or spray
applicator.
C A U T I O N C A U T I O N C A U T I O N C A U T I O N C A U T I O N
!!!!!
> The troubleshooting procedure outlined
in the "Troubleshooting Guide" requires
measurement of voltage potentials that can
cause SERIOUS BODILY INJURY
SERIOUS BODILY INJURY SERIOUS BODILY INJURY SERIOUS BODILY INJURY SERIOUS BODILY INJURY if
proper measuring procedures are not
followed. For this reason, proper trouble-
shooting should ONLY
ONLY ONLY ONLY ONLY be accomplished
with specific test equipment by qualified
electronics technicians or authorized ITW
Ransburg representatives.
W A R N I N G W A R N I N G W A R N I N G W A R N I N G W A R N I N G !!!!!
> Before going through the trouble of a
complete bench test, jumper JP4 on the
main PC Board to trigger the high voltage
and see if the suspected problem goes
away. If it does, replace the high voltage
trigger device (flow switch, pressure
switch, PC contact, etc.) or repair the in-
ternal wiring of the power supply con-
nected to the trigger device, and test
again. If the problem does not go away,
then proceed with a bench test.
N O T E N O T E N O T E N O T E N O T E
> ALWAYS ALWAYS ALWAYS ALWAYS ALWAYS turn power to the power
supply OFF OFF OFF OFF OFF, unplug the electrical cord from
its outlet, remove the front panel fuse, and
lock the power supply out before making
repairs or replacements.
W A R N I N G W A R N I N G W A R N I N G W A R N I N G W A R N I N G !!!!!
> DO NOT DO NOT DO NOT DO NOT DO NOT attempt to make repairs to
the printed circuit board! Do not attempt to
make repairs beyond those described. All
others should be made ONLY
ONLY ONLY ONLY ONLY by ITW
Ransburg service personnel.
C A U T I O N C A U T I O N C A U T I O N C A U T I O N C A U T I O N !!!!!
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