For Graco Pro Xp and Pro Xs Electrostatic Spray Guns, to test the electrostatic voltage of
the spray gun, as well as the condition of the turbine alternator and power supply when
disassembled from the gun. For professional use only.
See page 2 for kit part numbers and descriptions.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Testing the Power Supply Cartridge . . . . . . . . . . 8
Testing the Smart Handle's ES HI/LO Setting . 10
Low Voltage Adjustment
(For PRO Xs Smart Guns Only) . . . . . . . . . 12
Low Voltage Adjustment
(For Pro Xp Smart Guns Only) . . . . . . . . . . 13
Models
Part No. 245277
Includes Test Fixture, High Voltage Test Probe, and kV
Meter to test the electrostatic voltage of the spray gun,
as well as the condition of the turbine alternator and
power supply when disassembled from the gun. See
page 16 for parts.
Includes High Voltage Test Probe and kV Meter to test
the electrostatic voltage of the spray gun. See page 16
for parts.
2309455C
Page 3
Warnings
WARNING
Fire, Explosion, and Electric Shock Hazard
Equipment misuse can cause the equipme nt to ma lfunction an d cause a fire, ex plosion, or ele ctric
shock, resulting in death or serious injury. Improper ground ing, poor air ventilation, open flames, or
sparks can cause a hazardous condition and result in a fire, explosion, or electric shock.
•This equipment is for professional use only.
•Read all manuals, tags, and labels before operating the equipment.
•Electrostatic equipment must be used only by trained, qualified personn el who understand the
Warnings
requirements in this manual.
•Use the equipment only for its intended purpose. If you are uncertain, call your Graco distributor.
•Do not alter or modify equipment. Use only genuine Graco parts and accessories.
•Check the equipment daily. Repair or replace worn or damaged parts immediately.
•Only use the probe to test direct negative current (DC) electrostatic voltage.
•Only use this equipment to test Graco Pro Xs Electrostatic Gun Models. Never use it to test
“stiff” or “hot” systems.
•Always ground the fixture, probe, and kV meter as described in this manual.
•Ground or remove all metal and conductive objects, including tools, from the test area.
•Never touch the probe above its handle while te stin g.
•Never use the fixture to test the gun turbine alternator or p ower supply in a hazardous location.
•Never test the power supply without the probe shroud installed.
309455C3
Page 4
Operation
2
D
C
B
6A
3
Operation
Testing the Gun While It is
Operating
WARNING
Pressurized Equipment Hazard
Before testing the gun, follow the Pressure
Relief Procedure in your gun manual to
reduce the risk of fluid injection or splashing
of fluid in the eyes or on the skin.
NOTE: The maximum voltage read by the kV meter a nd
probe may be less than the rated voltage of the gun or
power supply that you are testing. This is due to voltage
losses that are intrinsic to the measurement of high voltage in air. These losses include current draw through
the probe and meter and also the inability to capture
100% of the electrons being emitted by the gun electrode.
Table 1: Typical Gun Voltage Readings in Air
Gun Model
Pro Xs215-25
Pro Xp 4035-45
Pro Xs3 and
Pro Xp 60
Pro Xs4 and
Pro Xp 85
Voltage
(kVdc)
55-65
75-85
1. Connect the probe’s red wire (D) to the kV meter (2)
and its green/yellow ground wire (C) to a true earth
ground (B). See F
2. Connect the kV meter’s green/yellow ground wire
(6) between the kV meter (2) ground connection an d
a true earth ground (B).
3. Holding onto the probe (3) handle, touch the end of
the probe to the spray gun electrode (A). Move the
end of the probe slightly until the maximum kV reading is obtained.
4. Read the voltage on the kV meter (2). Refer to
Table 1 for your gun model.
NOTE: When the kV meter (2) is not in use, place a
jumper wire across the kV meter connectors to prevent
excessive needle movement.
IG. 1.
TI1878A
Fig. 1. Testing the Gun While It is Operating
4309455C
Page 5
Testing the Turbine Alternator
TI1887A
L
R
WARNING
Sound Hazard
To reduce the risk of hearing loss or damage, always
wear hearing protection when operating the turbine
alternator.
CAUTION
Operation
Fig. 2. Turbine Alternator
3. Place the 3-pin connector (J) through the side window (M) and connect it to the turbine alternator connector (K). The orientation of the 3-pin connector
does not affect the test. See F
IG. 3.
To avoid demagnetization of the alternator, never
place it close to another alternator or any other ferromagnetic objects.
1. Remove the turbine alternator from the power supply as instructed in the spray gun manual. Bring the
equipment to a non-hazardous location to do the
testing.
WARNING
Fire, Explosion, and Electric Shock Hazard
To reduce the risk of fire, explosion, or electric shock, which can result in serious injury
and property damage, never use the Gr aco
Pro Xs and Pro Xp Test Fixture to test the
gun turbine alternator or power supply in a
hazardous location.
4. Lubricate the alternator o-ring with non-silicone
grease, Part No. 111265. Do not over-lubricate.
NOTE: For Pro Xp alternators, insert the spacer
(22) into the fixture (H) before inserting the alternator (L).
5. Place the turbine alternator (L) inside the fixture (H),
with the slot (G) facing the side window (M). Use the
alignment tool (21) to push the alternator into the
housing cavity. Tighten the top locking screw (8)
until the screw extends past the alterna to r tab .
6. Connect the probe shroud (16) to the fixture (H) with
the screw (17).
2. Visually inspect the turbine alternator (L). See F
2. If any of the holes (R) are plugged, unplug them.
If excess wear appears on the alternator bearings or
shaft, replace or rebuild the alternator. See Acces-sories to order a Turbine Alternator Repair Kit.
309455C5
IG.
Page 6
Operation
TI1879B
L
JKM
H
8
16
17
G
21
For Pro Xs Guns
L
JKM
H
8
16
17
G
21
For Pro Xp Guns
22
TI1879C
1
Spacer (22) is for use with Pro Xp alternators only.
1
Fig. 3. Install Turbine Alternator in Fixture
6309455C
Page 7
Operation
TI1880A
Back View of Test Fixture
Ground clamp (12)
wire connection to test
fixture
F
E
9
B12
N
16
7. Connect the fixture’s grounding clamp (12) to a true
earth ground (B). See F
IG. 4.
8. Connect an air line (E) to the fixture. Set the air
pressure to 26 psi (1.8 bar, 0.18 MPa).
9. Measure the turbine alternator AC voltage output
with a voltmeter (N), measuring across the fixture
terminals (9) as shown in F
IG. 4.
NOTE: To measure frequency and voltage, you
need a multimeter. See Accessories.
The turbine alternator voltage should read in the
range shown in Table 2 . If the readings vary from
these values, replace the alternator or rebuild it. See
Accessories to order an Alternator Repair Kit.
Table 2: Turbine Alternator Voltage
Gun ModelFrequency (Hz)Voltage (V)
All Pro Xs Models625 Hz maximum6.4 V minimum
All Pro Xp Models575 Hz maximum6.4 V minimum
10. Remove the probe shroud (16).
11. Disconnect the 3-pin connector (J) and loosen the
locking screw (8). Use the plunger (F) on the back of
the fixture to push out the turbine alternator.
12. Test the alternator coil by measuring the resistance
between the two outer terminals of the 3-pin connector (K) with a multimeter. The resistance should
be 2.5-3.5 ohms.
Measure the resistance between each outer terminal of the 3-pin connector and the exterior of the turbine alternator (L). The resistance should be greater
than 400 ohms.
If the readings vary from these values, replace the
alternator coil.
Fig. 4. Testing the Turbine Alternator
309455C7
TI1886A
Page 8
Operation
Testing the Power Supply
Cartridge
NOTE: You do not use the fixture's 3-pin connector (J)
to test the power supply cartridge.
1. Remove the power supply cartridge from the gun as
instructed in your spray gun manual and bring the
equipment to a non-hazardous location to do the
testing.
WARNING
Fire, Explosion, and Electric Shock Hazard
To reduce the risk of fire, explosion, or electric shock, which can result in serious injury
and property damage:
•Never use the Graco Pro Xs Test Fixture to
test the gun turbine alternator or power
supply in a hazardous location.
8. Connect the kV meter's green/yellow ground wire
(6) between the kV meter and a true earth ground.
9. Connect the fixture's grounding clamp (12) to a true
earth ground.
10. Connect an air line (E) to the fixture. Set the air
pressure to 30 psi (0.21 MPa, 2.1 bar).
11. Read the power supply cartridge voltage output with
the kV meter. See Table 3 for typical readings.
Table 3: Typical Power Supply Voltage Readings
with Test Fixture
Gun Model
Pro Xs215-25
Pro Xp 4035-45
Pro Xs3 and
Pro Xp 60
Pro Xs4 and
Pro Xp 85
Voltage
(kVdc)
55-65
75-85
•Never test the power supply without the
shroud (16) installed.
2. Lubricate the alternator o-ring with non-silicone
grease, Part No. 111265. Do not over-lubricate.
3. Install the power supply cartridge (P) into the fixture
(H), orientated as shown in F
Xp guns, the cartridge must be rotated 15 degrees.
Push the cartridge into the fixture until the alternator
bottoms out in the cavity. Tighten the screw (8) until
snug. Do not overtighten.
4. Secure the shroud (16) to the fixture (H) with the
screw (17).
5. Lubricate the probe o-ring (5) to ease insertion into
the shroud.
6. Insert the probe (3) into the shroud (16) and touch
its tip to the end of the power supply.
7. Connect the probe's red wire (D) to the kV meter
and its green/yellow ground wire (C) to a true earth
ground (B). See F
IG. 6.
IG. 5. Note that for Pro
8309455C
Page 9
Operation
TI1881A
16
P
8
H
3
5
17
8
H
3
5
P
17
16
For Pro Xp Guns
For Pro Xs Guns
TI1886A
Back View of Test Fixture
Ground clamp (12)
wire connection to
test fixture
E
2
D
C
B
6
12
Fig. 5. Install Power Supply in Fixture
Fig. 6. Testing the Power Supply
TI1882A
309455C9
Page 10
Operation
TI1883A
Detail A: Connect the flexible circuit adapter.
Detail B: Install the smart handle loosely.
Detail C: Tighten the smart handle to the fixture.
ES HI/LO Switch
20
M
S
P
T
U
H
1
To test a Pro Xp gun smart handle,
drill out the gun air valve shaft hole
(H) to 1/4 in. diameter.
1
Testing the Smart Handle's ES
HI/LO Setting
NOTE: To test a Pro Xp gun smart handle, drill out the
gun air valve shaft hole (H) to 1/4 in. diameter. See
Detail A of F
1. Use the ES HI/LO switch on the back of the gun to
change the power supply output to either high voltage or low voltage setting. See Detail A of F
IG. 7.
IG. 7.
2. Connect the flexible circuit test adapter (20) to the
flex circuit (S) on the power supply cartridge (P).
Thread the connected circuits through the side window (M) of the fixture and connect to the smart handle.
NOTE: To ensure the correct pin connections, make
sure there are no twists in the flexible cables.
3. Mount the smart handle (T) loosely to the fixture.
See Detail B.
4. Tighten the smart handle screws (U) to the fixture.
See Detail C.
TI1885A
TI1883A
Fig. 7. Testing the Smart Handle
10309455C
Page 11
Operation
309455C11
Page 12
Operation
100
%
KV
μα
0
ti1529a
Remove plug
12
ON
OFF
ES HI/LO Switch
Low Voltage Adjustment (For Pro Xs Smart Guns Only)
The ES HI/LO switch enables you to switch between full
voltage and a lower voltage output. The lower voltage is
factory set, but can be adjusted.
1. Set the ES HI/LO switch to LO.
2. Remove the LO VOLTAGE adjustment plug. Set the
desired voltage, using a small screwdriver to slide
switches 1 and 2 ON or OFF, according to Table 4 .
Also see F
IG. 8.
Fig. 8. Low Voltage Adjustment Switches (Pro Xs
Guns)
Table 4: Low Voltage Adjustment (P ro Xs Gu n s on l y)
60 kV Guns85 kV Guns
12kV12kV
ONON50ONON70
Factory Setting > ONOFF40ONOFF60
OFFON35OFFON50
OFFOFF30OFFOFF40
12309455C
Page 13
Low Voltage Adjustment (For Pro Xp Smart Guns Only)
LK
LO
VA
LV
LS
TI19337A
NOTE: See the Pro Xp instruction manual for complete
information on navigating and using the Smart module
display screens.
The low voltage setting is user adjustable. To access
the low voltage setting screen when in operating Mode,
press the LO SET button (LS) momentarily. The screen
will display the current low voltage setting (LV). The possible ranges are:
•85 kV guns: 40-85 kV
•60 kV guns: 30-60 kV
Set the Voltage Adjustment switch (VA) to LO. Press the
LO SET button repeatedly to increase the setting in
increments of 5. When the display reaches the maximum setting it will return to the minimum setting for your
gun. Continue pressing the button until you reach the
desired setting.
Fig. 9. Low Voltage Setting Screen, in Locked State
(Pro Xp Guns)
Operation
NOTE: After 2 seconds of inactivity the display will
return to the Operating Screen.
NOTE: The low voltage setting may be locked. When
locked, an image (LK) appears on the screen. See your
Pro Xp instruction manual for further information.
309455C13
Page 14
Troubleshooting
Troubleshooting
ProblemCauseSolution
Spray gun test shows low voltage.Gun ES HI/LO switch on low (smart
guns only).
Gun ES ON/OFF valve turned OFF.Turn ON.
Air pressure to gun too low.Increase air pressure; air pressure
KV meter not grounded.Connect the kV meter ground wire to
KV meter connected wrong.Correct connection; see F
Fluid resistivity too low.Check fluid resistivity with paint
Faulty gun resistance.Check gun resistance; see gun man-
Fluid leaks from needle packing and
causes short.
Dirty gun.Clean the gun.
Faulty power supply.Test power supply; replace if faulty.
Faulty turbine alternator.Test alternator; replace or rebuild if
Power supply test shows low voltage. Gun's ES switch is positioned for low
voltage setting.
Probe is not making contact with
power supply contact.
KV meter not grounded.Connect the kV meter ground wire to
KV meter connected wrong.Correct connection; see F
Air pressure to fixture too low.Increase air pressure; air pressure to
Fixture's air bypass not plugged.M ake sure the probe shroud is tightly
Faulty alternator.Test alternator; replace or rebuild if
Check switch position.
must be at least 40 psi (2.8 bar) at
the gun air inlet.
a true earth ground; see F
meter and probe.
ual.
Clean needle cavity and replace fluid
needle assembly.
faulty.*
Move ES switch to high voltage set-
ting position; see F
Remove the probe, then push it into
the shroud until it presses firmly
against the power supply contact.
a true earth ground; see F
fixture must be at least 30 psi (0.21
MPa, 2.1 bar).
secured to the fixture.
faulty.*
IG. 1.
IG. 1.
IG. 7..
IG. 1.
IG. 1.
* See Accessories to order a repair kit.
14309455C
Page 15
Troubleshooting
ProblemCauseSolution
Turbine alternator test shows no fre-
No connection to load resistor.Check connection.
quency or voltage.
Alternator coil has open circuit.Test coil. Resistance should be
2.5-3.5 ohms. Replace coil if necessary.
Turbine alternator test shows frequency or voltage is out of range.
Air pressure to fixture too low.Increase air pressure; air pressure to
fixture must be at least 30 psi (0.21
MPa, 2.1 bar).
Fixture's air bypass not plugged.Make sure the probe shroud is tightly
secured to the fixture.
Alternator bearings worn.Replace or rebuild alternator.*
Coil resistance out of range.Replace coil.
Alternator armature worn.Replace armature.*
Alternator holes are plugged.Unplug the holes.
Operator gets shock.Operator not properly grounded.Be sure floor is properly grounded;
wear shoes with conductive soles or
wear personal grounding straps; be
sure operator is not in contact with or
carrying any metallic items which
could build up electrical charge; if a
glove is worn, it must be conductive
or modified as shown in your gun
manual.
Probe not properly grounded.Connect the probe's ground wire to a
true earth ground; see F
IG. 1.
Gun not properly grounded.Ground the gun; see your gun man-
ual.
* See Accessories to order a repair kit.
309455C15
Page 16
Parts
2
6
5
3
4
16
17
12
14
11
89
18
10
15
13
10
21
20
NOTE: Item 1 Probe and Meter Assy includes items 2-6.
* NOTE: Item 7 Test Fixture includes items 8-18.
Rear View
of Housing
7*
22
1
Item 22 is for alternator used with Pro Xp guns only.
1
TI1877B
Parts
Part No. 245277, Series A
Test Fixture, Probe, and kV Meter
TI1886A
16309455C
Page 17
Part No. 245277, Series A
Test Fixture, Probe, and kV Meter
Ref.
Part No.DescriptionQty
No.
Parts
1236003PROBE AND METER ASSY;
includes items 2-6
2224904. kV METER1
3224911. HIGH VOLTAGE TEST PROBE;
includes items 4 and 5
187465. . LABEL, warning1
4
5110466. . O-RING; fluoroelastomer1
6223267. kV METER GROUND WIRE1
7245278Pro Xs ES TEST FIXTURE ASSY;
includes items 8-18
8187468. LOCKING SCREW1
9245326. RESISTOR ASSY1
10156823. UNION, swivel; 1/4 npt(m x f)2
187466. LABEL, warning1
11
12224952. FIXTURE GROUND WIRE1
13162453. NIPPLE; 1/4 npsm x 1/4 npt1
14160430. GAUGE, air pressure; 0-100 psi
(0-0.7 MPa, 0-7 bar)
1
1
1
1
15104984. TEE; 1/4 npt(f)1
16224899. SHROUD1
17112325. SCREW; 1/4-201
18168518. O-RING; fluoroelastomer2
19112234CASE, carrying (not shown)1
20245302FLEX CIRCUIT, test assembly1
21179802TOOL, power supply alignment1
2224R038KIT, spacer; for alternator used
with Pro Xp guns only
Replacement Warning labels, signs, tags, and cards
are available at no cost.
309455C17
1
Page 18
Accessories
TI18639B
Accessories
Wavetek Multimeter Model DM25XT
The Wavetek Multimeter (or equivalent meter that can
read voltage and frequency) can be used to test the turbine alternator. This meter can be purchased through
most industrial electronic product distributors.
To order, contact:
Wavetek Corporation
Instruments Division
9045 Balboa Avenue
San Diego, CA 92123-1509
Paint Probe
722860Use with 722886 Paint Resistance Meter to
measure resistance of paint.
Not for use in hazardous areas.
Paint Resistance Meter
722886Use with 722860 Paint Probe to measure
resistance of paint.
Not for use in hazardous areas.
Alternator Bearing Kit (for Pro Xp guns only)
Alternator Bearing Kit (for Pro Xs guns only)
223688To repair the turbine alternator used with
Pro Xs guns. Includes bearings, fan, and
spacer tool. Refer to manual 308034.
TI1884A
Turbine Alternator Armature (for Pro Xs guns only)
217590To repair the turbine alternator used with
Pro Xs guns. Not available for Pro Xp guns.
Refer to manual 308034.
Non-Silicone Lubricant
1112654 oz (113 g) tube of sanitary (non-silicone)
lubricant.
24N706To repair the turbine alternator used with
Pro Xp guns. Includes bearings, fan, housing, and clip. Refer to manual 3A2500.
18309455C
Page 19
Technical Data
CategoryData
Technical Data
Maximum Air Pressure to Pro Xs and Pro Xp ES Test
Fixture Inlet
Minimum Air Pressure to Pro Xs and Pro Xp ES Test
Fixture Inlet
Maximum Testing Voltage90 kV DC
kV Probe and Meter Accuracy+/- 5% full scale
kV Probe Resistance7 gigohm +/- 5%
Multimeter SpecificationsTo test the turbine alternator, the multimeter must read
40 psi (0.28 MPa, 2.8 bar)
30 psi (0.21 MPa, 2.1 bar)
voltage and frequency. See Accessories to order.
309455C19
Page 20
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs
will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com. For patent information, see
www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505
All written and visual data contained in this document reflects the latest product information available at the time of publication.
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS, MN 55440-1441 • USA
Copyright 2002, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 309455
International Offices: Belgium, China, Japan, Korea
Graco Headquarters: Minneapolis
www.graco.com
Revision C, October 2016
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