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Graco LineLazer 3500 - User Manual

Graco LineLazer 3500
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308941
Rev. B
First choice when
quality counts.t
INSTRUCTIONS–PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
Kits, Line Guide
For LineLazert 3500 & 5000 and LineLazer II 3900 & 5900
Model 241101, Series A
Short, for parking lot striping and road striping
Model 241102, Series A
Long, for road striping only
Installation
NOTE: Steps 1 and 2 apply to
LineLazer 3500 & 5000 only.
1. Drill two holes on both sides of chassis frame,
as shown in Fig. 1.
Fig. 1
8851A
1.0 in.
1.0 in.
A = 5.55 in. — LineLazer 3900 & 5900 (already drilled)
Front
4X Ĭ .330
through both walls
A = 6.55 in. — LineLazer 3500 & 5000 (must be drilled)
A
2. Mount one bracket (6) on right side of chassis
(viewed from front) with two flange screws (7) and
two lock nuts (8), as shown in Fig. 2.
Fig. 2
6, 7, 8
7
8
6
1
8850A
Right-side bracket is
already mounted on
LineLazer 3900 & 5900.
NOTE: Steps 3 and 4 apply to all LineLazers.
3. Slide left-side bracket (6) onto rod (1). Note
bracket orientation. Insert rod in right-side bracket.
4. Mount left-side bracket (6) on chassis with two
flange screws (7) and two lock nuts (8).
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1999, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001

Questions and Answers

  • F
    fbaileyAug 16, 2025
    How to troubleshoot a Graco LineLazer 3500 engine that won't start?
    • B
      Brenda MichaelAug 16, 2025
      If your Graco Paint Sprayer engine won't start, first ensure the engine switch is in the ON position. If that doesn't work, check if the engine is out of gas and refill the tank. Also, verify the engine oil level and replenish if low. Inspect the spark plug cable for disconnections or damage, and connect or replace it as needed. For a cold engine, use the choke. Confirm that the fuel shutoff lever is in the ON position. If oil is seeping into the combustion chamber, remove the spark plug, pull the starter rope several times, clean or replace the spark plug, and keep the sprayer upright.
  • S
    Shannon ButlerAug 19, 2025
    Why won't my Graco Paint Sprayer engine start?
    • B
      Brandon HerringAug 19, 2025
      Your Graco Paint Sprayer engine may not start due to several reasons. Ensure the engine switch is ON. Check if the engine is out of gas and refill if needed. Verify the engine oil level and replenish if low. Make sure the spark plug cable is connected and not damaged; replace the spark plug if necessary. If the engine is cold, use the choke. Also, confirm the fuel shutoff lever is in the ON position. If oil is seeping into the combustion chamber, remove the spark plug, pull the starter rope a few times, clean or replace the spark plug, and keep the sprayer upright.
  • G
    gboltonAug 22, 2025
    How to prime Graco LineLazer 3500 Paint Sprayer if it is difficult?
    • N
      Nicholas BowersAug 22, 2025
      If your Graco Paint Sprayer is difficult to prime, check for air in the pump or hose by tightening all fluid connections. Reduce engine speed and cycle the pump slowly during priming. Inspect the intake valve for leaks, ensuring the ball seat isn't damaged and the ball seats well after cleaning and reassembling the valve. Also, if the paint is too thick, thin it according to the supplier’s recommendations. Decreasing the throttle setting before priming the pump can also help.
  • A
    Angela MillerAug 25, 2025
    Why is fluid spitting from the gun of my Graco LineLazer 3500?
    • J
      Jerry CalderonAug 26, 2025
      If fluid is spitting from the gun of your Graco Paint Sprayer, it could be due to air in the pump or hose. Check and tighten all fluid connections and reprime the pump. Another reason could be a partially clogged tip, so clear the tip. Also, ensure the fluid supply isn't low or empty, and refill if necessary, priming the pump afterward. Check the fluid supply often to prevent the pump from running dry.
  • D
    dana64Aug 27, 2025
    What to do if paint leaks into the wetcup of my Graco LineLazer 3500 Paint Sprayer?
    • J
      jrichAug 27, 2025
      If paint leaks into the wetcup of your Graco Paint Sprayer, first try tightening the wetcup just enough to stop the leakage. If the leak persists, the throat packings may be worn or damaged, or the displacement rod may be worn or damaged.
  • J
    Jon JonesAug 30, 2025
    What to do if fluid delivery is low on my Graco LineLazer 3500 Paint Sprayer?
    • E
      Eugene SandersAug 30, 2025
      If the fluid delivery is low on your Graco Paint Sprayer, check the following: * Ensure the inlet screen isn't clogged and clean it if necessary. * Increase the pressure setting. * Increase the engine throttle setting. * Check the fluid filter, tip filter, and tip for clogs or dirt and clean them. * If you're using heavy materials, a larger diameter hose and/or shorter hose length might be needed. Avoid using more than 100 ft of 1/4 in. hose; use 3/8 in. hose for best performance (minimum 50 ft).
  • W
    William FlowersSep 2, 2025
    What causes low pump output on upstroke of my Graco LineLazer 3500 Paint Sprayer?
    • K
      Kyle ColeSep 2, 2025
      Low pump output on the upstroke of your Graco Paint Sprayer could be due to a clogged hose inlet screen, so clean the inlet screen. It could also be that the piston ball is not seating. Another potential cause is worn or damaged piston packings, or a worn or damaged O-ring in the displacement pump.
  • J
    Jennifer CrossSep 5, 2025
    What to do if the Graco LineLazer 3500 engine runs but the displacement pump doesn't operate?
    • A
      Amanda SanchezSep 5, 2025
      If the Graco Paint Sprayer engine operates but the displacement pump does not, first ensure that the pressure control switch is turned ON. Then, check the pressure setting and increase it by turning the pressure adjusting knob clockwise. Inspect the fluid filter for dirt and clean if necessary. Also, verify that the tip or tip filter isn't clogged and clean it if needed.
  • C
    Cheryl MillerSep 7, 2025
    What to do if the engine of my Graco LineLazer 3500 Paint Sprayer operates, but the displacement pump does not operate?
    • N
      Nicholas NelsonSep 7, 2025
      If your Graco Paint Sprayer's engine runs but the displacement pump doesn't, first ensure the pressure control switch is ON. Then, check if the pressure setting is too low and increase it by turning the pressure adjusting knob clockwise. Also, check the fluid filter and tip/tip filter for any clogs. The displacement pump piston rod may be stuck due to dried paint.
  • D
    Dwayne WoodSep 10, 2025
    What causes low pump output on downstroke or both strokes of my Graco LineLazer 3500 Paint Sprayer?
    • U
      uwrightSep 12, 2025
      Low pump output on the downstroke or both strokes of your Graco Paint Sprayer can be caused by a clogged hose strainer, so clean the strainer screen. It may also be caused by worn or damaged piston packings. Another potential cause is the intake valve ball not seating properly. Also, ensure the engine speed isn't too low by increasing the throttle setting. A worn or damaged clutch can also cause this issue.

Graco LineLazer 3500 Specifications

General IconGeneral
Horsepower5.5 HP
Max. Tip Size0.021 inches
EngineHonda GX160
Engine TypeHonda GX160
Max Pressure3300 psi (22.7 MPa, 227 bar)

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