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Graco magnum pro plus a20 - User Manual

Graco magnum pro plus a20
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Repair
Magnum Plus A20, Pro Plus A20, Pro Plus A30,
Pro Plus A45, and Pro Plus A60 Airless Sprayer
332697C
EN
- For portable spray applications of architectural paints and coatings -
A20, A30, and A45 ONLY: Use water-based or min-
eral spirit-type materials only. Do not use materials hav-
ing flash points lower than 100° F (38° C). This
includes, but is not limited to, acetone, xylene, toluene,
or naptha. For more information about your material,
request MSDS from distributor or retailer.
Models 16W108, 16E664, 16E665, 16W515, 17C243, 17C244, 17C245, 17C246
IMPORTANT SAFETY INSTRUCTIONS
Read all warnings and instructions in this manual.
Save these instructions.
See page 3 for model series information including
dispense rate, recommended hose length, guns, and
maximum working pressure.
ti22086a
ti22045a
Pro Plus A45
Model: 16E665
Series A and B
ti22084a
Pro Plus A60
Model: 16W515
Series A
ti22085a
Pro Plus A30
Model: 16E664
Series A and B
Pro Plus A20
Model: 16W108
Series A
Plus A20
Model: 17C243
Series A
Model: 17C244
Series A
Model: 17C245
Series A
Model: 17C246
Series A

Table of Contents

Questions and Answers

  • E
    Emily WilkinsNov 24, 2025
    Why Graco magnum pro plus a20 pump will not prime?
    • D
      Deborah TaylorNov 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...
  • K
    Kimberly Miller DDSAug 23, 2025
    Why is paint leaking down the outside of the pump on my Graco magnum pro plus a20 Paint Sprayer?
    • J
      Jessica SchmidtAug 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.
  • M
    Mr. Michael RojasAug 27, 2025
    What to do if Graco Paint Sprayer gun stops spraying?
    • A
      Allison BruceAug 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.
  • W
    William MccannAug 27, 2025
    What to do if my Graco magnum pro plus a20 Paint Sprayer pump does not cycle?
    • J
      Joshua WilkersonAug 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.
  • M
    Michael HarrisAug 28, 2025
    Why does my Graco magnum pro plus a20 Paint Sprayer pump cycle but pressure doesn't build up?
    • K
      kingbrittanyAug 28, 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.
  • R
    Roger RobinsonSep 22, 2025
    Why does my Graco magnum pro plus a20 building circuit breaker opens?
    • R
      ramirezdianaSep 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.
  • S
    Scott MccoySep 14, 2025
    How to troubleshoot basic electrical problems with a Graco magnum pro plus a20 Paint Sprayer?
    • N
      Nichole ConleySep 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.
  • T
    Tiffany LopezSep 18, 2025
    Why Graco Paint Sprayer motor is hot and runs intermittently?
    • I
      isaacmurphySep 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.
  • B
    Benjamin CarrilloSep 6, 2025
    What to do if my Graco Paint Sprayer pump cycles but pressure does not build up?
    • S
      Suzanne ThompsonSep 7, 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.
  • A
    Alexandra HardingSep 4, 2025
    Why can't I pull the trigger on my Graco magnum pro plus a20 gun?
    • R
      Renee BennettSep 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 a20 Specifications

General IconGeneral
BrandGraco
Modelmagnum pro plus a20
CategoryPaint Sprayer
LanguageEnglish

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