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Graco Magnum Pro Plus A45 - User Manual

Graco Magnum Pro Plus A45
28 pages
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Pro Plus A30
Pro Plus A45
(16E664)
(16E665)
ti15962a
- For Portable Spray Applications Architectural Paints and Coatings -
- Not for use in explosive atmospheres -
Models:
Pro Plus
™
A30 (16E664) - Series B
Maximum Working Pressure: 207 bar, 21 MPa (3000 PSI)
Includes:
•
0.91 lpm (0.24 gpm) cart-mount sprayer
• SG3 gun - Manual 312830
• 0.635 cm (1/4 in) x 7.5 m (25 ft) hose
Pro Plus
™
A45 (16E665) - Series B
Maximum Working Pressure: 207 bar, 21 MPa (3000 PSI)
Includes:
•
1.17 lpm (0.31 gpm) cart-mount sprayer
• SG3 gun - Manual 312830
• 0.635 cm (1/4 in.) x 15 m (50 ft) hose
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
Repair
Pro Plus
™
A30 / Pro Plus
™
A45 Airless Sprayer
3A1222B
EN
Use water based or mineral-spirit type material only.
Do not use materials having flash points lower than
70°F (21°C). For more information about your mate-
rial request MSDS from distributor or retailer.

Table of Contents

Other manuals for Graco Magnum Pro Plus A45

Preview: Repair Manual
Repair Manual60 pages
Preview: Operation Instructions
Operation Instructions24 pages

Questions and Answers

  • R
    Ronald ChambersNov 24, 2025
    Why Graco Magnum Pro Plus A45 Paint Sprayer pump will not prime?
    • N
      Nicholas NealNov 24, 2025
      There are several reasons why your Graco Paint Sprayer pump might not prime: * The Prime/Spray valve is set at SPRAY. To fix this, turn the Prime/Spray valve to PRIME. * The inlet screen is clogged. Clean any debris off the inlet screen. * The suction tube is not immersed in paint. Reposition the suction tube at the bottom of the paint pail. * The inlet valve check ball is stuck. Remove the tube and insert the end of a pencil into the inlet section to dislodge the ball. Alternatively, press the pump priming button. * The outlet valve check ball is stuck. Unscrew the outlet valve, then remove and clean the assembly. * The suction tube is leaking. Tighten the suction tube connection and inspect for cracks or vacuum leaks. * The Prime/Spray valve is clogged. Clean or replace th...
  • A
    Austin MillerAug 25, 2025
    Why is paint leaking down the outside of the pump on my Graco Magnum Pro Plus A45 Paint Sprayer?
    • J
      Jamie RobertsAug 25, 2025
      If paint is leaking down the outside of the pump on your Graco Paint Sprayer, the pump packings are likely worn. Replace the pump packings.
  • T
    Timothy BrownAug 27, 2025
    What to do if Graco Paint Sprayer gun stops spraying?
    • M
      mendezmichaelAug 27, 2025
      If your Graco Paint Sprayer gun stops spraying, the spray tip may be clogged. Turn the arrow-shaped handle to the unclog position, aim the gun into a waste pail, squeeze the trigger, then return the handle to the spray position and begin spraying.
  • L
    Logan HammondAug 27, 2025
    What to do if my Graco Magnum Pro Plus A45 Paint Sprayer pump does not cycle?
    • N
      Natasha RodgersAug 27, 2025
      If your Graco Paint Sprayer pump isn't cycling, first ensure the pressure isn't set to minimum by turning the pressure control knob to increase it. Check that the electrical outlet is providing power by testing it with another working device, and reset the circuit breaker or replace the fuse if necessary. Inspect the extension cord and sprayer electrical cord for damage, replacing them if needed. If the paint is frozen or hardened, thaw the sprayer in a warm area or replace the pump packings and remove residue from valves.
  • J
    Joshua JohnsonAug 29, 2025
    Why does my Graco Magnum Pro Plus A45 Paint Sprayer pump cycle but pressure doesn't build up?
    • C
      christinejohnsonAug 29, 2025
      If your Graco Paint Sprayer pump cycles but pressure doesn't build up, start by priming the pump. Check and clean the inlet screen for any clogs. Ensure the suction tube is fully immersed in the paint. Refill the paint pail if it's empty and re-prime the sprayer. Inspect the suction tube for air leaks, tightening the connection or replacing it if cracked. Try pressing the pump priming button two times.
  • M
    mcdonaldelizabethSep 22, 2025
    Why does my Graco Magnum Pro Plus A45 Paint Sprayer building circuit breaker opens?
    • C
      Casey WilliamsSep 22, 2025
      If the building circuit breaker opens after the Graco Paint Sprayer operates for 5-10 minutes, or as soon as the sprayer is plugged in and turned on, it could be due to: * Too many appliances plugged in on the same circuit. Unplug some appliances or use a less busy circuit. * The extension cord is damaged, too long, or not a heavy enough gauge. Test the extension cord by plugging in a working device and replace the extension cord if necessary. * The sprayer's electrical cord is damaged. Check for broken insulation or wires and replace the damaged electrical cord.
  • A
    Annette NashSep 14, 2025
    How to troubleshoot basic electrical problems with a Graco Magnum Pro Plus A45 Paint Sprayer?
    • R
      Rachel JacobsSep 14, 2025
      To troubleshoot basic electrical problems with your Graco Paint Sprayer, first allow the motor to cool for 45 minutes and retry. Check the electrical outlet by resetting the circuit breaker or replacing the fuse, and ensure the outlet provides 220 to 240V AC. Replace any loose terminals and ensure all leads and harnesses are firmly connected. Check the length of the motor brushes, which must be 0.25 inches (6.4mm), and replace the motor if the brushes are worn. Inspect the motor armature commutator for damage.
  • Z
    Zachary WaltonSep 18, 2025
    Why Graco Magnum Pro Plus A45 Paint Sprayer motor is hot and runs intermittently?
    • F
      freemanashleySep 18, 2025
      If your Graco Paint Sprayer motor is hot and runs intermittently, it indicates a Thermal Overload condition, where the motor automatically shuts off due to excessive heat. This can be caused by: * Clogged vent holes in the shroud or the sprayer being covered. Clear the vent holes. * Using an extension cord that's too long or not heavy enough gauge. * Using an unregulated electrical generator with excessive voltage. Use an electrical generator with a proper voltage regulator; the sprayer requires 220-240 VAC 50/60 Hz. * Operating the sprayer at high pressure with a small tip, causing frequent motor starts and excessive heat build-up. Decrease the pressure setting or increase the tip size, and move the sprayer to a cooler location.
  • J
    Joan KnoxSep 6, 2025
    What to do if my Graco Paint Sprayer pump cycles but pressure does not build up?
    • J
      Jesse StoneSep 6, 2025
      If your Graco Paint Sprayer pump cycles but pressure doesn't build up, check the following: * The pump may not be primed. Prime the pump. * The inlet screen may be clogged. Clean any debris off the inlet screen. * The suction tube may not be immersed. Reposition the suction tube at the bottom of the paint pail. * The paint pail may be empty. Refill the paint pail and reprime the sprayer. * The suction tube may have a vacuum air leak. Tighten the suction tube connection and inspect for cracks or vacuum leaks. Replace if cracked or damaged.
  • C
    christophersellersSep 4, 2025
    Why can't I pull the trigger on my Graco Magnum Pro Plus A45 gun?
    • T
      Trevor DavisSep 4, 2025
      If you cannot pull the trigger on your Graco Paint Sprayer gun, ensure the gun trigger safety is disengaged.

Graco Magnum Pro Plus A45 Specifications

General IconGeneral
BrandGraco
ModelMagnum Pro Plus A45
CategoryPaint Sprayer
LanguageEnglish

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