User manual GRACO TX 90 TROUBLESHOOTING MANUAL
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Manual abstract: user guide GRACO TX 90TROUBLESHOOTING MANUAL
Detailed instructions for use are in the User's Guide.
[. . . ] 18 · Power cord plugged in and Power Switch ON and Gun Trigger Closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 · Power cord plugged in and Power Switch ON and Spray Gun Trigger Open. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Gas Texture Sprayers TexSpray 1030 FC: · Operational Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 · Pump will not prime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] If capacitor(s) are attached to the control board the test can not be perormed. "SEE ABOVE WARNING" Using a screwdriver with insulated handles, hold so that the blade contacts the capacitor terminals as shown in Fig. While watching the meter, connect the 2 leads to the 2 terminals on the capacitor. If the capacitor is good, the meter needle will go to the right (toward 0 resistance) (Fig. 1), then to the left (toward - maximum resistance) If the meter needle goes all the way to the right and stays there, the capacitor is defective. (Fig. 2) If the meter needle stays all the way to the left (doesn't move at all when connected to the capacitor), the capacitor is defective. (Fig. A
Capacitor
4 5
GOOD
BAD
BAD
8
RECTIFIER
(See Fig. 1) Now we come to the most popular application of the diode: rectifcation. Simply rectifcation is the conversion of alternating current (AC) to direct current (DC). This almost always involves the use of some device that only allows one-way flow of electrons. As we have seen, this is exactly what a diode does.
RECTIFIER TESTING:
The following instructions can be used to test any bridge rectifer. Use a DC continuity test light or a VOM (on the R x 100 scale) for all tests. RTX 650 and TX 65
See step 1. Do you have over 100 AC volts?
YES
NO
Repair or replace the power Cord.
110-120 AC
V
Step 1
Power switch ON. Do you have over 100 AC volts?
NO
Replace the power switch.
Fuse
Fuse
Black Red
Red Black
Black
See step 3. Do you have over 100 AC volts?
YES
NO
Check the 3amp Fuse, if ok repalce fuse holder.
White
Black
Red
Green
Green
Replace Motor
Power Cord White
White
Motor
Fuse
ON/OFF Switch
110-120 AC
V
Red Black Green
Red
Black
Fuse
Red
Red Black
White Chassis Ground
White Power Cord
Green
White
White
+ +
Green
Black
-
-
-
Power Cord White
Step 3
Power switch ON. RTX 900, 1250 and TX 90, 125
Green Wire (GND) Green White
110-120 AC
+
See step 1. Do you have NO over 100 AC volts?
YES
Repair or replace the power Cord.
V
Power Cord White Motor
Step 1
Power switch ON. Do you have NO over 100 AC volts?
YES
Replace the power switch.
-
Switch
Green Wire (GND) Green White
110-120 AC
V
White
Step 2
Power switch ON. Meter on AC Volts
Black Black Green
Green Wire (GND) Power Cord Motor White Wire
-
Switch
Black Wire
Switch
+
Replace Motor
Power Cord Motor
11
RotoFlex Motor or Compressor motor will not run. RTX 750 and RTX 1000
See pages 00, for the steps.
See step 1. Do you have over 100 AC volts?
YES
NO
Repair or replace the power Cord.
See step 2. Do you have over 100 AC volts?
YES
NO
Repair or replace White wire or wire splice.
See step 3. Do you have over 100 AC volts?
YES
NO
Repair or replace Black wire from power cord to power switch.
See step 4. Do you have over 100 AC volts?
YES
NO
Replace the power switch.
See step 5. Do you have over 100 AC volts?
NO
Repair or replace Black wire or wire splice.
12
RotoFlex Motor or Compressor motor will not run. Meter on AC Volts
-
-
-
POWER SWITCH
SELECTOR SWITCH
WHITE
POWER CORD
WHITE
WHITE BLACK
CAPACITOR BLACK BLACK
WHITE BLACK
+ +
MOTOR BLUE YELLOW POWER SWITCH SELECTOR SWITCH GREEN GROUND GREEN BLUE WHITE AIR COMPRESSOR BLACK BLACK WHITE GREEN POWER CORD
BLACK
110-120 AC
V
Step 5
Power switch ON. Meter on AC Volts
POWER SWITCH
-
- BLACK
+
WHITE BLACK
-
GREEN
GREEN
POWER CORD
BLACK WHITE BLACK BLUE
+
POWER CORD
110-120 AC
V
Step 4
Power switch ON. Meter on AC Volts
+ +
-
POWER SWITCH
SELECTOR SWITCH
-
SELECTOR SWITCH BLACK WHITE BLUE
BLUE
POWER CORD
+
BLACK
POWER CORD
13
RotoFlex Motor motor will not run. [. . . ] Once the Control Board senses the closed circuit it will engage the clutch and close the dump valve.
Mac Air Valve 15B683
Gun Air Nozzle
Black
Blue
When Coil Voltage is present, the coil will close the air valve changing the direction of the air flow to the dump valve. Air will now travel through the blue hose to the back of the dump valve forcing it closed
Dump Valve 287127
Air
Transducer: Sends a signal to the control board for material pressure and protects the sprayer from over pressurizing. PRESSURE SWITCH (normal open) Closes when 30 psi of pressure is maintained. Differential PRESURE SWITCH (normal open) Closes when 5 cfms of air flow is maintained or when a air leak is present. [. . . ]
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