User manual GRACO TX 90 TROUBLESHOOTING MANUAL

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GRACO TX 90 TROUBLESHOOTING MANUAL: Download the complete user guide (7384 Ko)

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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